Listening and loss

Recently, on a run in the fields around the village where I live, I realised that I could not hear a skylark. At one level, this is not surprising, because the agricultural landscapes of Cambridgeshire are as species-poor as any ecosystem short of a car park. But this was a place where I had heard skylarks last year, and the year before. A farm access track through wheat had created a kind of accidental skylark plot, giving the kind of open weedy ground cover that scientists have shown that skylarks like, providing a slim toehold in the sea of pesticide-perfected arable crops.

My first thought brought a familiar lurch of anxiety – were there perhaps no skylarks this year? Was my rather barren corner of England not to be enlivened by the lark’s heart-stopping seesaw song, rising above the agricultural prairie below? It seemed all too possible. Skylarks have been declining in the UK since the 1970s, and no amount of agri-environment spending or skylark plot design has made much difference. Skylarks are simply disappearing from our skies and fields.

But a second thought followed, almost equally unwelcome. Was the problem with me and not the landscape? Were there in fact skylarks singing away, but I simply couldn’t hear them? This was, unfortunately, also quite likely. In recent years my hearing has deteriorated. I have struggled to hear quietly spoken students in lecture halls, and indistinct colleagues in meetings. More depressingly, I have stopped being able to hear birdsong.

For me, hearing loss was a gradual process, an imperceptibly slow change that involved a narrowing and a thinning of soundscapes. My mind did not register the change, and my brain adapted. I got good at listening, I got quite good at lip-reading, and found myself choosing to sit so that peoples’ faces were not shadowed. I did a lot of guessing what people said from context (not always successfully I have to say). And I no longer heard many of nature’s sounds: the subtle chuckle of stream water, the thick whisper of wind in poplars, bumblebees on the rosemary.

With birds, it was hopeless. Vaughan Williams did his best with the violin in The Lark Ascending, but the reality is more varied, more exhilarating, and to me almost completely inaudible. I found myself scanning the sky for singing birds so that I could cup my hands behind my ears and maybe hear a faint wisp of song: a mug’s game. In Nature Cure, Richard Mabey describes movingly the sense of loss he experienced when he could no longer hear birdsong. I felt some measure of the same loss, a small extra sad erosion of my sense of nature.

Last year I bit the bullet and was fitted with hearing aids, courtesy of the National Health Service. They were brilliant.  Indeed my hearing was at first too brilliant, and I was deafened by the running washing up water, disturbed at hearing conversations across coffee shops and on trains. I also discovered that meetings are not necessarily more interesting when you can hear everything.

I thought I would be self-conscious about having hearing aids, and surprised myself that I wasn’t. They were an unwelcome indicator of senescence, but they felt like just one more age-defying prosthetic. I like to think of them as enabling devices that offer new powers – like a wetsuit, binoculars or a bicycle.

The big win of having hearing aids has undoubtedly been that I can hear birdsong again. Back garden songbirds have been a deafening delight this spring, and I have started once more to hear birds before I see them. But last summer it was undoubtedly the endless improvisation of the skylarks that gave me the most delight.

Losing and regaining hearing has made me more sensitive to the sound worlds people live in. I learned how impatient people can be at those who cannot hear, or hear badly. And I realized how many people choose to live in a world of curated noise. People walk the streets, talk to friends on the trains and run the bare footpaths between Cambridgeshire fields, with earphones plugged in place. Their phone, podcast or music streaming service is a constant companion. The continuous stimulation of ear and brain seems a necessary prop a sonic backcloth to life, a kind of aural comfort blanket. What drives this dependence on recorded and transmitted sound? A concern that without stimulation we will die of boredom? A fear that that incoming sound will be disturbing, or discordant? A refusal to have our sound world will be penetrated and spoiled by that of someone else? Do we have a fear of silence?

The natural world is never silent, any more than it is ever truly empty. Acoustic ecologists analyse the complex soundscapes that life creates. Clever algorithms tease apart different species from their sounds, calls or song, separating and identifying different species and sometimes individuals from the apparent chaos. The machines work perfectly happily beyond the human register, as anyone who has played with a bat box knows.

But acoustic ecologists also tell us that we live in a world that is gradually losing natural sounds as species are lost from familiar landscapes and populations shrink. Soundscapes are as vulnerable as smellscapes, and almost everywhere more transformed. Human made sounds overlie all others. Traffic, garden machinery, aeroplanes provide a roaring carpet of mechanised sound, against which we pour endless music into our ears in search of pleasure and meaning, not knowing and not caring what we listen to, happy to have the streaming algorithms curate and armour our sonic defences.

Every spring, I suffer what I have come to anticipate as a regular anxiety of the turning year. I sense a fear that the natural world will not kick-start itself again after the short cold days of winter, that bumble bees will not re-appear on the rosemary, that swallows will not turn up by the pond, that swifts will not burn their way through the skies above the streets.

There isn’t a word for this anxiety, although I think many people attuned to nature suffer from it. It reflects the stress of ‘living in a world of wounds’, which Aldo Leopold described. I think of it as a kind of ‘spring fear’ (perhaps something of it is captured by the delightful German word torschlusspanik, the fear of time running out). It is a consequence of knowing too much about the homogenisation of ecosystems and the destruction of natural diversity in the modern world.

My gradual loss of hearing has taught me something about the gradual loss of biodiversity that we are experiencing. Year by year, non-human life is thinned out, losing numbers and diversity, leaving only the familiar co-habitants, the tough and hyper-adaptable, the parasitic and the domesticated. These changes seem unstoppable, endless, a slow decline of a vibrant world into some shadowland of uniformity.

The opening paragraphs of Rachel Carson’s Silent Spring described the world refashioned by organochlorine pesticides in terms of lost sounds. She wrote of ‘a spring without voices. On the mornings that had once throbbed with the dawn chorus of robins, catbirds, doves, jays, wrens, and scores of other bird voices there was now no sound; only silence lay over the fields and woods and marsh’.

I usually don’t wear my hearing aids when I am running. So, there I was, on a field corner, with no skylarks to be heard, and two questions running round my head. Were skylarks really singing, and I simply could not hear them? Or were they missing, marking one more step in their long decline? Could my prosthetic ears conjure skylarks back into life, or were they gone? Was this spring perhaps to be the first of many such springs, or even the first of all future springs, without the skylark’s song?

Silence, and how we deal with it, are key challenges for conservation. In a world of wall to wall noise, we need to take time to listen. We must talk about what we can hear, and what we are missing. Otherwise we will remain oblivious to the growing silence around us. And we may miss the fact that no neat device exists to bring lost soundscapes back, except in sad recorded archives of a once rich natural world.

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The global conservation movement is diverse but not divided

In a break from tradition for this blog, the majority of this post comprises the Authors’ Accepted Manuscript of a published paper entitled “The global conservation movement is diverse but not divided. The full paper can be found (with very minor editorial tweaks from the text below) in Nature Sustainability . I have posted it here, with permission, in order to make a near-final version freely available from the date of publication.

Should biodiversity be conserved for its own sake or because it provides benefits to people? Should nature have to pay its own way in the marketplace? Should people be displaced to make space for protected areas? For several years I have been studying the different ways in which conservationists think about such fundamental questions, how these ideas are shaped, and how they affect conservation practice. Recent debates between ‘new conservation’ and more traditional approaches have shown just how lively the resulting arguments can be.

Convinced that published positions in the new conservation debate did not capture the diversity of views in the wider conservation community, I got together with Janet Fisher, George Holmes, Rogelio Luque-Lora and Aidan Keane to develop the Future of Conservation Survey. Launched in 2017, this survey was designed to capture the views of a large number of conservationists on some of the key issues under debate in conservation. We were blown away by the response. The paper reproduced below reports data from over 9,000 respondents we believe have professional experience in conservation. Since we began analysis for the paper the total number of respondents has risen to almost 15,000 from over 160 countries.

The results paint a somewhat nuanced picture. On the one hand, there are very high levels of agreement on many statements, and no distinct clusters of responses that would suggest the conservation community is divided into ‘camps’. On the other hand, there are some statements with low levels of agreement, and there are clear associations between responses and demographic characteristics (gender, age, nationality, etc.).

Conservationists generally favour the approaches we call ‘people-centred conservation’ and ‘science-led ecocentrism’, but find ‘conservation through capitalism’ more controversial. Women and those from Africa and South America lean more toward people-centered conservation, whereas men and those from North America tend to favour the science-led approach. Conservation through capitalism found more favour among senior conservationists and those from Africa, but was less popular among older respondents.

It would be possible to spin the results one way (“hey, we mostly agree – inclusive conservation is possible!”) or the other (“wait a minute – there are big differences between different subgroups of conservationists – there is no such thing as the conservation movement!”). We have tried to find a middle ground between the two that reflects the complexity of the results.

An important conclusion of the paper is that debates about the future of conservation should include the widest possible representation of the diversity of conservationists. Put simply, if there are consistent differences in opinion between different demographic groups, it makes no sense to have debates dominated by a single subgroup (such as northern white men). In making this call for diversity I freely acknowledge that the researchers on this project are not a very diverse group ourselves – we are all white Europeans, four men and one woman. However, we hope that by conducting this research we have succeeded in bringing forward the perspectives of a much more diverse group than has previously been the case.

As an unexpected bonus, soon after the Future of Conservation Survey went live, we began to be contacted by academics and practitioners telling us that they had used the survey as a tool for exploring and debating the views held by those they worked with, such as their colleagues or students. This suggested an opportunity to use our survey for teaching and capacity development. We have now developed a free web-based tool called GO-FOX  that allows anyone to use the survey in this way – please do check it out if you might be interested.

Working on this project has been a real pleasure. I hope the results will make a useful contribution to the conservation community, and encourage further debate of what, why and how to conserve.


 

The global conservation movement is diverse but not divided

Author’s Accepted Manuscript. Full article available here.

Chris Sandbrook* 1,2

Janet A. Fisher 3

George Holmes 4

Rogelio Luque-Lora 1

Aidan Keane 3

  1. University of Cambridge, Department of Geography, Downing Place, Cambridge, CB2 3EN, UK
  2. UN Environment World Conservation Monitoring Centre, 219 Huntingdon Road, Cambridge, CB3 0DL, UK
  3. School of GeoSciences, University of Edinburgh, Edinburgh, EH9 3FF, UK
  4. School of Earth and Environment, University of Leeds, Woodhouse Lane, Leeds, LS2, 9JT, UK

* Indicates corresponding author

 

Abstract

Biodiversity is being lost at an unprecedented rate, making the conservation movement of critical importance for life on Earth. However, recent debates over the future of conservation have been polarised, acrimonious and dominated by an unrepresentative demographic group. The views of the wider global conservation community on fundamental questions regarding what, why and how to conserve are unknown. Here we characterise the views of 9,264 conservationists from 149 countries, identifying specific areas of consensus and disagreement, and three independent dimensions of conservation thinking.  The first two dimensions (‘people-centred conservation’ and ‘science-led ecocentrism’) have widespread support, whereas ‘conservation through capitalism’ is more contentious. While conservationists’ views on these three dimensions do not fall into distinct clusters, there are clear relationships between dimension scores and respondents’ gender, age, educational background, career stage and continent of nationality. Future debates and policy processes should focus on the most contentious issues, and do more to include the perspectives of under-represented groups in conservation who may not share the views of those in more powerful positions.

 

Main text

Conservation is at a crossroads. Biodiversity loss is widely recognised as having serious consequences, but despite decades of effort in policy and site specific interventions, extinction rates remain high1,2. The Convention on Biological Diversity 2010 goal to achieve “a significant reduction of the current rate of biodiversity loss” was not achieved, and there is no indication that the CBD Aichi targets for 2020 will be met3. Against this backdrop, negotiations are underway for the post 2020 Biodiversity Framework of the CBD, which will set the global conservation agenda for at least a decade to come. There is widespread agreement that conservation needs to be more bold and ambitious, and to find more effective implementation measures4,5. However, setting the future direction of conservation is hampered by the existence of various competing proposals which diverge on fundamental questions about why, what and how to conserve4,6–9. Two positions in particular have been prominent in recent debates. Proponents of ‘new conservation’ argue for protecting biodiversity because of its importance to people, and emphasise partnerships with corporations, the natural capital approach, and the use of market-based tools such as payments for ecosystem services6,10,11. Meanwhile advocates of ‘traditional conservation’ reject these views, arguing instead for the protection of nature for its own sake and emphasising state-based protected areas and regulation7,12,13. This latter position is associated with calls for the radical expansion of protected area coverage targets in the post 2020 CBD framework to at least 50% of the terrestrial and marine realms5,8,9.

The ‘new conservation’ debate has dominated conservation thinking for several years, creating the impression of a stark choice to be made about the future of conservation. However, the debate has been critiqued in various ways. First, for recasting as ‘new’ what are in fact long-standing disagreements in conservation11,14,15 over underlying rationales (such as ecocentrism and anthropocentrism)16,17, the role of market based approaches and economic valuation18,19, and the relationship between conservation and development14,20. Second, for falsely suggesting there are only two perspectives, leaving out important alternative views on conservation, such as a ‘critical social science’ view which favours conservation for the benefit of people but disagrees with the use of market based approaches4,21,22. Third, for under-representing the diversity of voices in the wider conservation community, because the main protagonists of the ‘new conservation’ debate are from an unrepresentative demographic group of North Americans who hold senior positions23. Fourth, for being conducted in an excessively acrimonious and hostile tone24,25.

Addressing these critiques and moving the debate forwards requires empirical evidence on the views of the wider conservation community. However, at present these views remain unknown, beyond studies of specific issues such as coexistence with carnivores26. Here, we report the findings of an online survey of 9,264 conservation practitioners and academics from 149 countries (Supplementary Figure 1). This is the largest published survey of the professional conservation community, responding directly to calls for conservationists to carefully identify their views and values, and to express them explicitly14,27. Respondents indicated their level of agreement with 38 Likert items that were designed to assess their views on the issues raised within the new conservation debate, such as the underlying rationales for conservation, how goals should be set and the appropriateness of various tools to achieve those goals (Figure 1; see Methods for details). Respondents also provided information on their gender, age, educational background, career stage and continent of nationality (Supplementary Table 1). The survey was distributed via relevant listservs and through social media channels, targeted to encompass a range of ages and seniority (e.g. postgraduate and early career lists), disciplines (e.g. conservation social science, ecology specialist lists) and geographical locations (continent and country specific lists). The survey was then circulated organically amongst networks of conservation professionals and through social media such as Twitter and Facebook.

Areas of consensus and polarization

We found high levels of consensus among our respondents on multiple survey items, but also important areas with high levels of polarization (Figure 1; Supplementary Figure 2). As might be expected, the strongest consensus was in agreement that the maintenance of biodiversity and ecosystem processes should be goals of conservation. There was also strong consensus in agreement that humans are part of nature, not separate from it. This is perhaps surprising as nature is often spoken of by some conservationists as if it were distinct from people, for example, in the ‘nature needs half’ slogan28. The most polarising issues each have a long history of intensive debate within the conservation community. These included the acceptability of displacing people to establish protected areas29, the need for strict protected areas to achieve conservation goals30 and the question of whether pristine nature untouched by humans exists31.

Fig 1 - likert_summary

Figure 1: The views of conservationists on key issues relating to the future of conservation. The distribution of responses is shown for each survey item. The items are presented from top to bottom according to the arithmetic mean of the responses, assuming that categories are equally spaced. Items indicated by bold text loaded strongly onto one of the three dimensions and were therefore retained for subsequent confirmatory analyses carried out on an independent subset of the data. Items which were excluded from further consideration are indicated by grey text.

 

Dimensions of the conservation debate

To examine whether the observed patterns of responses to our Likert items were linked to a smaller number of underlying dimensions of thinking, we carried out an exploratory item factor analysis on our data. Having determined the appropriate number of dimensions to extract (see Methods) we fitted a multidimensional graded response model32 which correctly accounts for the ordinal nature of the responses. We then rotated the raw factor loadings to produce more interpretable results, using an oblimin rotation which allows for the possibility that the factors might be correlated. As a check on the robustness of our findings, we repeated this procedure on two randomly selected subsets of the data, each comprising one third of our total responses (Supplementary Figure 4).

Based on these analyses, we identified three latent variables which were theoretically coherent and consistent across the two replicates. Each variable represents a different dimension of conservation thinking, which together characterise views on important aspects of the aims and practice of conservation (Table 1). Dimension 1 (‘people-centred conservation’) relates to the role of people in conservation, as participants and stakeholders. Dimension 2 (‘science-led ecocentrism’) relates to the role of science in the conservation of species and ecosystems, consistent with fundamental elements of ecocentric thinking33,34. Dimension 3 (‘conservation through capitalism’) relates to the role of corporations, economic metaphors and market based approaches in conservation (Table 1).

Table 1 HQ

Table 1: Factor loadings from a confirmatory three dimensional item factor analysis. Dimension F1 is labelled as “People-centred conservation”, F2 as “Science-led ecocentrism”, and F3 as “Conservation through capitalism”. Within each dimension, items are presented in order from most strongly positive loading to most strongly negative loading.

 

All three dimensions reflect longstanding debates in conservation, although the third has become particularly contentious in recent years21. The three dimensions can be used to describe a wide range of conservation viewpoints. For example, based on its description in the literature6,7, the ‘new conservation’ position is people-centred, in favour of conservation through capitalism but generally critical of ‘science-led ecocentrism’, whereas the ‘traditional conservation’ position is the converse. If most respondents adhered to the ‘new’ or ‘traditional’ positions, we would expect them to cluster into two groups corresponding to these positions, where the positions of respondents on each dimension would be highly correlated within each cluster. In fact, we found that factor scores calculated from a confirmatory model fitted to a third, independent subset of the responses were not substantially correlated and respondents exhibited a wide range of positions on all three dimensions, with cluster analysis revealing no evidence of distinct sub-clusters (Figure 2; Supplementary Figures 5 and 6).

To understand better the underlying views of respondents on the Likert items associated with each dimension, we plotted their positions on each dimension relative to the point that would result from a neutral answer to all Likert items (Figure 2). This showed that the great majority of respondents were in favour of both ‘people-centred conservation’ and ‘science-led ecocentrism’, to a greater or lesser extent, despite the fact that these perspectives are often treated as mutually exclusive35–37. This might reflect a pragmatic recognition that different approaches are suitable for different contexts, combining to a more heterogeneous overall strategy. Opinions over conservation through capitalism’ were more polarised, with 28.1% of respondents against this approach, contrasting with only 5.4% opposing ‘people-centred conservation’ and 2.3% opposing ‘science-led ecocentrism’ (Figure 2). This relatively high level of concern about ‘conservation through capitalism’ is important given the prominent role of market-based approaches and corporate partnerships in contemporary conservation practice38.

Fig 2 - theta_distribution_third HQ

Figure 2: Conservationists’ views form one cluster, not many. Relationships between each pair of dimensions identified in a multidimensional graded response model. Axes display dimension scores. Dotted lines represent the score for each dimension that would be generated if ‘neutral’ were selected for every survey item (further details in Methods). Percentage figures in the corner of each panel show the proportion of respondents who fall into the relevant quadrant created by the dotted ‘neutral’ lines. The correlation between respondents’ scores (⍴) on each pair of axes is shown above the panels.

 

Conservationists’ characteristics predict their views

To find out whether respondents’ estimated positions on each dimension were related to demographic variables, we constructed explanatory models (Figure 3).  Demographic results for ‘people-centred conservation’ showed that women, those with non-natural science training and people from Africa, Asia and South and Central America were more in favour of this approach (Figure 3). The gender result could be linked to the on-average higher levels of empathy for the wellbeing of other humans among women than men39. The disciplinary result is likely due to social science and interdisciplinary training emphasising the role and importance of people14, although the direction of causality is not clear. The variation between regions of the world could be linked to geographical variation in the extent to which conservation actions impact the lives of local residents, or in worldviews on the relationship between people and their environments40. It is striking that within our sample the regions with stronger support for people-centred conservation contain the great majority of developing countries.

Results for ‘science-led ecocentrism’ showed that women were less in favour of this approach than men, suggesting a gender dimension to these ideas that merits further research. Biological scientists strongly support ‘science-led ecocentrism’ and social scientists strongly oppose it, with other disciplines in the middle. This is not surprising given the strongly contrasting disciplinary perspectives within biology and social science on the statements comprising this dimension. Very senior conservationists were less in favour of this approach than more junior colleagues, perhaps suggesting that those holding these views are less likely to become senior, or that these ideas lose their appeal as one gains professional experience. Finally, support for ‘science-led ecocentrism’ was strongly linked to region of origin, with those from North America and Oceania tending to favour this approach most strongly, in direct contrast to results for people-centred conservation. This could be due to the strong history of ideas relating to wilderness and strict protected area-based conservation in these regions41.

Conservation through capitalism was favoured by women, those without social-science training, younger respondents, more senior respondents, and those from Africa. The gender effect merits further investigation. The academic background effect may be caused by the dominance of social science disciplines in research critical of links between conservation and capitalism38, which influences teaching. The age effect perhaps reflects the emergence of a younger generation of conservationists for whom close links to capitalism have existed since before they entered the sector. The seniority effect raises interesting questions about causality, such as whether conservationists become senior because they already hold certain views, or develop them having moved into a senior position, perhaps as a pragmatic response to the funding landscape or prevailing societal views42,43. Finally, the regional result, which is consistent with earlier research11, is likely due to the importance of sport-hunting and photographic tourism as a funding model for conservation in various countries of Eastern and Southern Africa44, the regions from which most of our African respondents originated.

We found strong relationships between all the demographic variables we investigated and at least one of the three dimensions of the conservation debate. Indeed gender, disciplinary training and continent of nationality were strongly linked to all three dimensions. Further research could investigate these links in more detail. These results support claims that the lack of diversity of participants in recent public debates about the future of conservation has led to an under-representation of certain viewpoints held within the wider conservation community23. Given power imbalances between different demographic groups, this also raises questions about whether ideas unpopular with some conservationists are being imposed on them by more powerful supporters of those ideas, as has occurred in the past45. For example, respondents from Africa, Asia and South & Central America (where most biodiversity is located) tended to be more in favour of people-centred conservation and less in favour of science-led ecocentrism than respondents from Europe, North America and Oceania. Conservation in the former group of continents has, in many cases, been strongly influenced by individuals and organisations from the latter group of continents41.

Fig 3 - covariate_effects HQ

Figure 3: Links between personal characteristics and views. Unfilled circles represent the baseline level in each panel against which the effects of other levels are compared. Filled circles show the mean difference from baseline (logits) with error bars representing 95% confidence intervals. Figures in parentheses are the proportion of respondents belonging to each category under the relevant variable. Non-specific responses (e.g. “Not reported” and “Other”) are not displayed.

 

Sample and survey limitations

While our sample is the largest and most diverse of any study of the global conservation community, it is important to note that the sampling strategy was based on opportunistic sharing of an online survey and is therefore not representative of the full conservation community (although in the absence of data characterising global conservationists, it is impossible to design a truly representative sampling strategy). For example, our sample over-represents highly educated conservationists from English speaking and wealthy countries, and under-represents those from non-English linguistic or less internationalised conservation backgrounds (e.g. indigenous perspectives). For this reason we caution against over-interpreting our results, particularly for less well represented demographic groups. These imbalances in our sample matter, because (i) those over-represented have tended to dominate conservation debates, (ii) there are differences in the opinions held by conservationists from wealthier and less wealthy regions, and (iii) most biodiversity is located in less wealthy countries46.

A second limitation relates to the design of the survey itself. The Likert items were developed through a rigorous process (see Methods), and were deliberately focused on the issues at stake in the new conservation debate over recent years. While this debate incorporates elements of many long-standing debates in conservation, it does not capture the full range of possible issues pertinent to the future of conservation, including, for instance, those existing in languages other than English, or in indigenous worldviews. The survey results should not, therefore, be interpreted as based on an exhaustive review of all possible conservation futures. In addition, the Likert items were presented free of context, making it difficult for some respondents to judge their level of agreement, particularly where they felt they would agree in some circumstances and disagree in others. This last point may also help to explain why most respondents agreed with both people-centred conservation and science-led ecocentrism: in many contexts, conservation interventions have to consider trade-offs between maximising biodiversity and human development27, but the survey did not force respondents to reveal a position on such trade-offs. The limitations of this study create interesting openings for further research into broader ideas about the future of conservation and how perspectives vary with context.

Conclusion

At a time when the conservation movement is facing bitter internal disputes over its future, our results demonstrate empirically that at the aggregate, global scale, it is less divided than some have claimed7,47. The great majority of conservationists agree with each other on many important questions and their views do not fall into discrete clusters based on their positions on three key dimensions of debate. However, when disaggregating our results by demographic variables, important differences between social groups emerge. These are not sufficient to be considered distinct clusters or camps (Supplementary Figures 5 and 6), but they reinforce the importance of recognising dimensions of social difference in conservation, and how these factors influence views.

Our results have important implications for conservation. Shared views on key issues provide the bedrock for any social movement, and the identification of the specific areas where consensus exists within the conservation movement should provide the basis for productive and less hostile engagement. The finding that there are no distinct ‘camps’ within the conservation community also lends credibility to calls for a more inclusive and unified conservation movement23,25,48. Nonetheless, even moderate differences in the extent to which people agree with certain ideas may result in fundamentally different priorities for conservation practice, particularly where trade-offs need to be made. In addition, our results identify several contentious issues that polarize the conservation community, including protected area management and the appropriate relationship between conservation, corporations and capitalism. In some cases addressing a diversity of conservation challenges may be well served by the existence of diverse conservation ideas and strategies25,49. However, where differences are irreconcilable this should be made explicit and deliberated rather than suppressed in the name of inclusivity22,26.

The demographic results identify consistent differences in average viewpoints by gender, educational background, age group, seniority and continent. Given historical links between all of these dimensions of social difference and uneven power relations, these findings raise important questions about whose voices get heard in conservation debates, and who is able to influence conservation action. Conservation is a diverse movement, both in people and ideas, and our results support calls for initiatives to ensure improved representation of social diversity in ongoing debates over the future of conservation50.

 

 

Methods

Survey design and sampling

Likert items that form the basis of the Future of Conservation survey were used in a previous Q methodological study, which describes the process by which they were derived21. Within Q methodology, statements are selected to represent the greatest possible coverage of views that exist among the respondent community on an established debate/topic51, in this case, published contributions to the ‘new conservation’ debate. Some of the statements resemble what social psychologists have termed ‘attitudes’, which are specific and contextualised views on particular issues; an example of this is the item ‘It is acceptable for people to be displaced to make space for protected areas’. In contrast, other statements represent more fundamental, cross-situational values52; for instance, ‘Conserving nature for nature’s sake should be a goal of conservation’. Based on the experience of our earlier research21, and further piloting of the statements to test their practicality as Likert items with an additional 14 participants, we made minor adjustments to four items to improve clarity. One further item was also entirely replaced by a new one. The item “plural rationales for conservation weaken the conservation movement”, was replaced with “having multiple rationales for conservation weakens the conservation movement”. The item “nature often rebounds from even severe perturbations” was replaced with “nature often recovers from even severe perturbations”. The item “conservation communications are more effective when they use doom and gloom rather than positive messages”, was replaced with “conservation communications are more effective when they use negative ‘doom and gloom’ messages rather than positive messages”. The item “conservation messages promoting the benefits of nature to humans are less effective than those that emphasise the value of nature for nature’s sake”, was replaced with “conservation messages that emphasise the value of nature for nature’s own sake are more effective than those that promote the benefits of nature to humans”. We added one item “When communities manage their own resources, their efforts are more effective than top-down approaches” as we identified this as an element of the new conservation debate that was not included in the original set of statements. We removed one item: “There is a risk that highlighting human domination of the planet may be used to justify further environmental damage” because this was not interpreted consistently by respondents in our previous work21. This gave a total of 38 statements as Likert items in the Future of Conservation survey (see Figure 1). The finalised statements in the web survey format were then piloted with 55 respondents known to the authors, with feedback sought on the clarity of statements, the medium and usability. No substantial changes were made to the survey after this.

Online survey design and distribution

We developed a bespoke web-based survey built by the Informatics Team at the UN Environment World Conservation Monitoring Centre and hosted at URL: http://www.futureconservation.org. This incorporated the 38 Likert items, with a corresponding 7-option Likert framework (strongly agree/disagree; agree/disagree; slightly agree/disagree; neutral). We also collected demographic information about respondents. This included information about: gender; age; level of education and educational specialism; professional experience in research/practice; career seniority; nationality; geographical location of work as a conservationist; professional experience beyond the conservation sector; extent of human modification of landscapes where professional experience took place; experience of market-based schemes in conservation; experiences that were perceived to shape conservation values. These demographic questions were tested using the pilot processes described above.

The survey was launched and first publicised in March 2017, using the distribution strategy described in the main text. The survey website remains open, but the last date of a response included in this study is 29th May 2018.

Data preparation

Data preparation and analysis was carried out in R version 3.5.053. Our initial data set contained 11,272 responses. Prior to analysis, we first removed responses that identified the respondent as having previously taken the survey. This included those that had been submitted from the same IP address and had either given identical responses to the thirty-eight Likert items or gave the same email address. We also removed responses where there were missing data for any of the Likert items or demographic questions, or where the same response was given to all of the Likert items (e.g. all “Strongly agree”). Finally, we excluded responses from those who answered “Not applicable” to the question “In which of the following sectors have you done conservation work in your career?”, indicating that they have no direct experience of working or conducting research in conservation, and respondents who reported themselves to be younger than 18. In total, we excluded 2,008 responses based on these criteria, leaving 9,264 responses for analysis.

Information about the respondents’ personal characteristics used in this study was coded as a series of categorical variables: gender (male / female / other or prefer not to say); educational specialism (biological sciences / non-biological natural sciences / interdisciplinary / humanities / social sciences); age (<29 / 30-39 / 40-49 / 50+); seniority (very junior position / fairly junior position / neither senior nor junior position / fairly senior position / very senior position); and continent of nationality (Africa / Asia / Europe / South & Central America; North America; Oceania).

Investigating polarization in the survey data

To examine the extent to which there was broad consensus of opinion amongst our respondents we calculated polarization scores based on the responses to each statement. Polarization is a statistic that ranges from 0 to 1, where a score of 0 corresponds to all respondents giving the same answer and a score of 1 corresponds to half of the responses falling in one category, and half falling in a second, non-adjacent category. A score of 0.5 corresponds to a situation where responses are uniformly distributed across all of the available response categories. 95% confidence intervals around the polarization score were calculated from a non-parametric bootstrap with 200 independent draws for each Likert item.

The level of polarization in the responses to each Likert item within our survey ranged from moderate – 0.418  (95%CI:  0.413, 0.427) for “It is acceptable for people to be displaced to make space for protected areas” – to very low polarization – 0.093 (95%CI: 0.090, 0.097) for “Maintaining biological diversity should be a goal of conservation” (Supplementary Figure 2).

Modelling strategy

Our analyses were carried out within the framework of multidimensional item response theory54 and focused on understanding the number and content of latent dimensions capable of explaining patterns of variation in responses to the survey’s Likert items, quantifying the level of these latent traits in individual respondents and understanding whether and how these latent traits might be related to respondents’ individual characteristics. Our modelling strategy involved three distinct phases: an exploratory phase in which we examined the structure and dimensionality of the data, a confirmatory phase in which we formally tested the adequacy of the structure we arrived at and an explanatory phase in which we modelled latent trait values as a function of individual demographic characteristics55. To allow this, we split the data into three randomly-sampled, equally-sized subsets, each containing 3,088 responses. The first two subsets were used during the exploratory phase, running identical exploratory analyses in parallel and comparing their results to assess the robustness and stability of the solution56. The third subset was then used for the confirmatory phase to minimise the problems associated with performing both exploratory and confirmatory analyses on the same data54. Having arrived at a satisfactory model structure, the three subsets were recombined in the final, explanatory phase to provide the greatest precision for our estimates of the effects of individual characteristics.

Exploratory modelling

To evaluate the dimensionality of the data, we calculated Velicier’s Minimum Average Partial (MAP) criterion57 and examined scree plots based on the matrices of polychoric correlations calculated for each of the first two subsets of the data (Supplementary Figure 3). These criteria suggested that up to five distinct factors might be present in the data so we carried out an item factor analysis based on the multidimensional graded response model32, comparing solutions for three, four and five dimensional models. All models were fitted using the mirt function from the mirt package version 1.2858, with parameters estimated via the Metropolis-Hastings Robbins-Monro algorithm59. To improve interpretation the initially-extracted factor loading matrix was extracted using oblimin rotation. Since we had no prior theoretical expectation about the correlation of the latent dimensions, an oblique rotation was chosen to allow the factors to be correlated with each other to the extent that was supported by the data. Our choice between the alternative models was guided by the theoretical coherence of the resulting factors, the loading patterns of the items onto each pattern (e.g. three or more items loading >|0.40| and either two or more items loading >|0.50| at least one item loading >|0.60| onto each factor, and few strongly cross-loading items between factors)60, and the consistency of the solution arrived at for each of the two subsets of the data (Supplementary Figure 4). Having identified items that did not load sufficiently strongly onto any factor or loaded strongly across multiple factors, we excluded them from the dataset and refitted the model as a further check for consistency.

Confirmatory modelling

Next, we fitted a confirmatory multidimensional graded response models to the third subset of our data, whose dimensionality and structure was informed by the outcomes of our exploratory modelling. Since not all of the initial set of Likert items were well captured by these dimensions, only items which were identified as loading substantially (>|0.4|) on one factor and having no strong cross-loading onto other factors (no other loadings >|0.3| and a difference of at least 0.2 between the loading on the main factors and strongest loading on any other factor) were retained in order to obtain simple structure. The model was fitted using the mirt function from the mirt package by supplying a user-specified structure including an unstructured covariance matrix58.

Assessing the goodness-of-fit of models is challenging for large datasets with complex, polytomous responses, where the full table of possible response combinations may be very sparse61. We therefore complemented assessments of the fit of the model via a χ2 statistic calculated based on the expected a posteriori summed-scores62 and M2*, a limited-information statistic63, the Confirmatory Fit Index and the Tucker-Lewis index64, with assessments of the adequacy of the approximation provided by the model based on the root mean squared error of approximation (RMSEA) and standardized root mean squared residuals (SRMSR)64. We also assessed possible violations of the assumption of local independence using the local dependence matrix calculated from the χ2 statistic and standardized residuals calculated from M2* for every pair of items65.

Once a satisfactory fit was obtained, the model was used to estimate the maximum likelihood values for the set of latent trait scores for each respondent represented in the data66. In order to provide an intuitive point of comparison, we also calculated the latent trait score that would be expected if a hypothetical respondent had answered “Neutral” to all of the value statement items within the survey. This allowed us to judge the extent to which respondents within our sample were broadly supportive or opposed to the ideas represented by each of the modelled dimensions.

Explanatory modelling

In the final phase of our modelling, we tested for (a) the presence of clustering within the views of our respondents and (b) evidence of consistent differences in views linked to respondents’ personal characteristics.

To test for clustering within the views of our respondents we fitted a series of Gaussian finite mixture models67 to the estimated latent trait scores for each person represented within our data using the mclustICL function from the R package, mclust68. We had no a priori expectation about the number or shape of clusters that might be present in the data so we fitted a candidate set of 126 models in total, representing all possible combinations of the number of mixture components (up to nine) and the geometric characteristics of the clusters (14 cluster types: spherical, equal volume; spherical, unequal volume; diagonal, equal volume and shape; diagonal, varying volume, equal shape; diagonal, equal volume, varying shape; diagonal, varying volume and shape; ellipsoidal, equal volume, shape, and orientation; ellipsoidal, equal volume and orientation; ellipsoidal, equal shape and orientation; ellipsoidal, equal orientation; ellipsoidal, equal volume and equal shape; ellipsoidal, equal shape; ellipsoidal, equal volume; ellipsoidal, varying volume, shape, and orientation). The fit of these models was compared using the integrated-complete data likelihood criterion (ICL), an information criterion that has been demonstrated to perform well in identifying the correct number of clusters, with the best-fitting model taken to be the one highest ICL value69.

To test for differences in views linked to respondent characteristics we constructed a person-explanatory version of the graded-response model55 by incorporating five variables representing characteristics of our respondents – gender, age, professional seniority, continent of nationality and educational specialism – as fixed effects in a latent regression. The coefficients for these fixed effects, and their associated standard errors, were inspected to explore whether predictable, systematic differences exist in the positions of respondents along each latent dimension, linked to their personal characteristics.

Data availability

The datasets generated and/or analysed during the current study are not publicly available, to maintain respondent anonymity which was a condition of the ethical approval of the study (University of Leeds Research Ethics Committee reference LTSEE-054). All data gathered are stored securely and anonymously by UN Environment World Conservation Monitoring Centre. Please see http://futureconservation.org/about-the-project for full details of the Future of Conservation project’s ethics and data security protocols.

Project Ethics

The project has a ‘project ethics’ entry on the following page (http://futureconservation.org/about-the-project?locale=en), which is duplicated below:

“This project has been approved by the Research Ethics committee at the University of Leeds.

All data gathered will be stored securely and anonymously by UN Environment World Conservation Monitoring Centre, and used solely for the purposes of this research project. It will not be seen by anyone outside the research project.

Your individual responses will not be identifiable either in this website or in subsequent publications. If you provide us with your email address, we will not share it with other parties, and will only use this to send you summarised results and to invite you to participate in the survey again in future.”

 

Supplementary Information is linked to the online version of the paper at http://www.nature.com/nature

 

Materials and correspondence

Correspondence and requests for materials should be addressed to C.S. (cgs21@cam.ac.uk)

 

Acknowledgements

We thank all those who assisted with the piloting of the survey instrument, all respondents to the main survey, the Informatics team at UN Environment World Conservation Monitoring Centre for building the survey website, and Bill Adams, Aiora Zabala and Diego Juffe Bignoli for comments on the draft manuscript.

 

Author contributions

C.S., J.F and G.H. conceived the project and designed the survey. C.S., J.F., G.H. and R.L. wrote text for the survey website and promoted its uptake. A.K. analysed the data. All authors wrote the manuscript.

Competing interests

The authors declare no competing interests.

 

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A tale of HE, SHE, WE, and me

A big debate is going on at the moment about the future of conservation – much of it centred on the suggestion by Edward Wilson and others that half the world should be allocated to protected areas. Wilson calls this “Half Earth” (HE), and his book of the same name calls for 50% coverage of ‘inviolable natural reserves’. Others have set out various counter-proposals, including “Whole Earth” (WE) and “Sustainable Half Earth” (SHE). I have played a small part in this debate over the last few months, which has given me the chance to observe at close quarters the strange process by which simple and catchy ideas can take hold, even when most people don’t agree with them. In this article I try to tell this curious tale of HE, SHE, WE and me.

Continue reading

The three most dangerous narratives in conservation

Emery Roe, an American policy scholar, first developed the idea that ‘narratives’ – stories about the world and how it works – are used in policy making processes to cut through complexity and justify a particular course of action. We are a storytelling species, and people find it easy to understand and get behind a compelling story with strong internal logic and a beginning, middle and end. Once a narrative has taken hold they can be very difficult to shake off, at least until an even more compelling ‘counter-narrative’ arrives on the scene. A classic example from resource governance is the ‘resources will be over-exploited unless they are in private ownership’ narrative, based on Garrett Hardin’s 1968 Tragedy of the Common’s article. It took decades of careful scholarship, and ultimately a nobel prize for Elinor Ostrom, to demonstrate that this narrative was compelling, influential, and wrong.

There are numerous narratives circulating within the conservation sector. Some are inspiring, some are innovative, some are misleading. However, there are some that are, in my view, potentially dangerous. These narratives sound convincing – that’s why they have become established – and they are significantly shaping conservation research and practice in the world today. They are not entirely false, but their ‘truth’ has become accepted as orthodoxy to the extent that they slip by almost unnoticed, without proper scrutiny. This leads whole areas of conservation activity down particular paths that I fear will not lead to a desirable destination.

Continue reading

Conservation and the final frontier

A few weeks ago I settled down to watch a BBC TV programme called The 21st Century Race for Space, hosted by celebrity physicist and one-time pop star Brian Cox. I had spent all day thinking about conservation at work, and was looking for a bit of escapism. In the programme Cox spent a lot of time ogling large shiny spacecraft in even larger hangars in the Nevada desert, putting on space suits and visiting simulated mars colonies. It was like a Top Gear special all about space rockets.

One of the striking things about the programme was the people that Cox was able to talk to. He had 1:1 interviews with Dennis Tito (the first space tourist), Jeff Bezos (founder of Amazon and owner of Blue Origin, a ‘spaceflight services company’), and Richard Branson (founder of Virgin and owner of Virgin Galactic). He tried to get Elon Musk (founder of PayPal and owner of SpaceX) but had to settle for some guy who had once met him at a party.

These billionaires are revolutionising space innovation by moving it from being the exclusive preserve of state organisations (such as NASA) to the hands of private enterprise. They have extraordinary ambition – not just to advance our civilisation into space, but to make money while doing so. Bezos in particular spoke with fanatical zeal about the opportunity to provide a whole new canvas for human innovation and economic growth off our planet. Scholars of capitalism would recognise this as the ultimate spatial fix – capital seeking new frontiers for expansion in space (outer and virtual) once the possibilities on Earth are exhausted.

I found all this very interesting, but what really got my attention was when the subject unexpectedly turned to conservation. Several of the interviewees described their plans as part of a conservation strategy – both for biodiversity on Earth in general and human survival in particular (their arguments are very usefully summarised in this article from which I sourced some of the quotes below). This idea of ‘conservation through space travel’ builds on some thinking put forward by Stephen Hawking recently when he said “the human species will have to populate a new planet within 100 years if it is to survive. With climate change, overdue asteroid strikes, epidemics and population growth, our own planet is increasingly precarious”. Continue reading

PristinePark2.0™: the future of offsetting?

A group of smartly dressed executives stands on a viewing platform, looking out over a verdant forest teeming with wildlife. A waiter glides among the party topping up glasses of champagne, while another offers elaborate canapés. A man steps forward and claps his hands.

“Ladies and gentlemen, as Chief Executive of Conservation plc, may I welcome you to this exclusive viewing of the wonderful place that we call PristinePark2.0™. You have been carefully chosen to have the first opportunity to visit this paradise, and to purchase a stake in it. But first, let me tell you our story. Continue reading

The rise and fall of biodiversity

All around the world, biodiversity is being lost at an unprecedented rate. From an all-time peak in 2003, it has lost an incredible 40% in just over a decade. Although it is clinging on in certain places, the situation seems to be dire. How much longer can biodiversity survive?

This story sounds familiar to conservationists who are bombarded daily with depressing news about the biodiversity crisis. But in fact these statements have nothing to do with declines in the diversity of life on earth – they are about the use of the word ‘biodiversity’ itself. The statistics above are taken from Google Trends, a tool monitoring relative interest in general google search terms over time. Entering ‘biodiversity’ into this service reveals a steady decline between 2004 and 2008, followed by a fairly steady state since then.

Trends

So what is going on? Why did ‘biodiversity’ become so popular in the first place, why has interest in it been declining since 2003, and what might all this mean for the future of the conservation movement? Continue reading