Monday, 21 March 2016

People versus Parks -- Society for Conservation Biology Arguing Tropical Forest Conservation

To think that the Amazon forest can be conserved with parks, sanctuaries, forest guards and helicopters is simply to be unacquainted with our reality, or often worse: to be acquainted with it without understanding it. The controversy that is the topic of this exchange is not parks. We all agree that nature reserves with minimal human influence are an important component of any conservation strategy in any country. Rather, the point of controversy is how best to achieve a much broader, more comprehensive conservation of nature in a region such as Amazonia, where four-fifths of the forest are still standing. In this setting, it is counterproductive to insist that the only nature worth preserving is pristine, with no human influence, as some seem to be saying. To pursue this narrow interpretation of nature conservation is to ignore the scale and timing of human threats to this forest. By the end of the 1997-1998 El Ninio episode, for example, 1.5 million km2 of Amazon forest--a third of the forest remaining in Amazonia--was desiccated to the point of flammability. Most of the forest didn't catch fire because it is far from the agricultural frontier. With the paving of  4000 km of highway into the core region of Amazonia, large-scale forest burning will follow, as will 100,000-180,000 km2 of additional deforestation (Instituto de Pesquisa Ambiental na Amazonia and Instituto Socioambiental 2000; Nepstad et al. 2000). This scale of threat to Amazonia and other large tropical forest formations must frame our approach to conservation. 

Even if subsistence forest dwellers at low population densities deplete populations of game species and alter the species composition of forests over the course of generations, this form of forest impoverishment is innocuous compared with the realistic alternatives. If we give first priority to protection of areas we deem pristine--on the basis of a hypothetical "permanent protection" and at the expense of supporting the constituencies in and around forests with interests in using forest resources to secure areas large enough to perhaps change the trend--we may end up with nothing. Parks are not and will not be of a scale adequate to begin addressing the sweeping threats to Amazonia and other large tropical forests. Colchester offers an informed discussion on how indigenous and conservation interests converge in practice. Of our three critics, Chiccon claims to see problems in our generalizations but appears to support most all of our specific points, whereas Redford and Sander- son say they have already reached all of our conclusions that are true, and Terborgh holds to a different vision. 

 Our central difference comes down to differing understandings of the natural and social systems at issue in conservation. Some see the forest as a natural system that has over thousands of years attained a fragile equilibrium. It is in essence a finished product, and protection of it means maintaining stasis. Under this view, human occupation and human society are irrelevant as long as population is low and technology poor; otherwise, humans are noxious to pristine nature. Their solution, a park that keeps people out, is commensurate with their view of the forest: the ultimate end is to create it and see that it remains the same. Perhaps for this reason they tend to criticize indigenous and extractive (sustainable use) reserves as though the creation of these areas were of itself the goal. Archeological, ethnobotanical, and ethnohistoric studies, however, call into question this view of the Amazon and American forests more generally. Much of the Amazon was probably more densely populated before 1500 than at any time after until this century, or in some places until today. Large parts of the forest still show signs of indigenous management, both intensive and extensive or of resource depletion and possibly ecological crisis. Human occupation was significant, long-term, and lasting in effect--including increasing biodiversity locally. The "pristine" forest prized is in fact a recent artifact of the demographic collapse of indigenous populations after 1500 brought about by introduced diseases. Similarly outdated is the view of Amazon indigenous societies as small, simple, isolated, and unchanging. Not only were these societies historically more populous than imagined, they occupied the region for far longer and were in the millenium before 1500 socially more like the central American and Andean states than recent hunters and gatherers. They had extensive exchange and trade networks and were agents of a highly dynamic social, cultural, and linguistic diversity. This understanding of indigenous culture is much like a laundry list, a compen- dium of traits and practices. (We are indebted to anthropologist Terence Turner for this point.) These on contact with industrial-age people, are replaced by traits and practices that reflect our technology and our appetites--guns instead of bows and arrows, clothes instead of penis sheaths. Degradation of the environment is inevitable as our traits replace theirs. 

But rather than a static list of traits, culture is better understood as a people's collective ability to represent itself, to reproduce itself as a group, to forge a common and distinct identity. Change need not mean assimilation or unreflective substitution of their culture by ours. The emergence of indigenous organizations, the ethnic and cultural affirmations that everywhere accompany groups' territorial demands, and indigenous formulations of environmental concerns themselves are part of modern indigenous peoples' self-reinvention. There are excellent reasons for indigenous groups to seek sustainability in their own self-interest. But the "banner of conservation" is for indigenous populations "only a politically correct mask for a deeper issue," whereas "to place on the shoulders of relatively powerless forest dwellers the burden of stopping deforestation," is "at best unfair and at worst dangerous." There is the accusation of "speaking for the poor without showing that [we] actually do" and failing to "truly represent the populations [we] defend." In short, either the Indians and rural poor who claim environmental goals are prevaricating for the sake of political advantage, or we have put words in their mouths. 

Indigenous organizations claim these goals for themselves. If it is true that it is impossible to maintain the ecological integrity of large forests on indigenous and traditional peoples' territories, then it will likely be impossible to do so elsewhere on the frontier. So too is it unlikely that a few fragment/parks will conserve much biodiversity for long. In this sense, some underestimate the threat to the forest in imagining that U.S. style parks will survive in perpetuity in the absence of the ecosystem services provided by large expanses of native forest. It is a dangerous illusion to imagine that there is a choice between "turning over stewardship of valuable troves of unexploited natural resources to local people" and no-nonsense conservation. The forest is already inhabited, and protection of any more will depend on local people being able to achieve prosperity in and around it on a sustainable basis. Some take exception to our observation that evidence is sparse for species depletion on lands of indigenous and traditional peoples. Further examination of the literature reinforces our statement that no case of species extinction or severe depletion of large mammals has been reported from Amazonian indigenous or extractive reserves. A 2-year study of Parakanai hunting in Par'a was designed to test the hypothesis that "exploitation of fauna in its current form would not be sustainable over the long term..." and concluded that "the hypothesis [should].. be rejected." In Mbaracayu Ache reserve, Parguay, observed game harvest rates "are not likely to endanger any of the [hunted] species within the Mbaracayu reserve". Peres (2000a) finds that his study site in the Kayapo reserve in Par'a, in the immediate environs of a village, has a higher game biomass per square kilometer than five of his six unhunted sites and all but 2 of his 25-site sample. And all the sites were within a region where the Kayapo have hunted with guns for the last 50 years (Verswijver 1985). Martins (1993), who contrary to Redford & Sanderson's claim, did not conduct research in an extractive reserve, found some game populations reduced, unsurprising in a region continuously inhabited over the last 100 years. He failed to observe several species, although informants reported their presence. 

Peres (2000b) finds that vertebrate biomass declines with intensity of hunting as large-bodied mammals are removed. He also finds, however, that much of the variation in game biomass per square kilometer is accounted for by forest type. Furthermore, "overall community biomass at nonhunted sites... [is]virtually the same as that of lightly hunted sites." Indeed, Peres's argument turns largely on his categorization of hunting pressure as "light," "moderate," and "heavy." He notes that "reliable data on game harvest were not available." His methods of categorization are relatively subjective and unexplained, and his argument would benefit from clarification of this issue. Neither Peres's nor Martins's study looks at the more re- mote areas of indigenous or extractive reserves. Interfluves and areas beyond habitations more than about 15 km are not usually exploited in these areas because they are dis- tant and difficult to get to (and often full of wild ani- mals). (Peres conducted most of his nonhunted-area sur- veys in the Petrobras oil and gas fields, accessing clearings made by the oil company by small plane and helicop- ter.) The extensive interfluves in the 500,000-ha Alto Ju- rua extractive reserve, for example, are rarely visited (Almeida 1996) and may serve as game refuges. Many of the recent, impressive, and detailed surveys in indige- nous areas tend to look (for good logistical reasons) at speciflc hunted areas within reserves rather than at pop- ulations inside and outside the reserve (Bodmer & Puer- tas 2000; Leeuwenberg & Robinson 2000; Mena et al. 2000). The area not actively hunted in the 100,000-km2 Kayapo reserve, larger than Austria, with its <4000 in- habitants boggles the imagination. Comparing species composition within and outside of indigenous and extrac- tive reserves has to take some account of the size of the area protected by the reserve, and this has not been done. Does subsistence hunting by sparse populations of for- est dwellers lead to a cascade of local extinction events? The data that would allow us to respond to this ex- tremely important question are surprisingly scarce. Ter- borgh cites case studies from Wisconsin (Alverson et al. 1988), Maryland, Tennessee (Wilcove 1985), the chapar- rel of the western United States (Soule et al. 1988), Spain (Palomares et al. 1995), various North American loca- tions (Garrott et al. 1993), and his own observations in the Neotropics (Terborgh 1988, 1999) in arguing that the evidence for cascading extinctions is strong. In re- viewing the same evidence, Redford (1992) cites a case study from the desert of the southwestern United States (Brown & t4eske 1990) and states that "such clear-cut cases are not known from Neotropical areas." Dirzo and Miranda (1991) have demonstrated that when hunters extirpate game species in Mexico, seed and seedling predation declines and the forest floor becomes car- peted with tree seedlings, with important long-term im- plications for tree species composition. We agree with Terborgh that the extirpation of top predators probably affects many other species in tropical forests, particu- larly in fragmented landscapes such as those that were the focus of the studies he cites. But there is insufficient evidence to state that this extirpation will affect the ma- jority of tropical forest species, which are invertebrates and plants. More important for the present debate, the evidence that subsistence hunting by sparse populations of forest dwellers will drive any species to local extinc- tion is simply not available. Both Terborgh and Redford & Sanderson apparently agree with our statement that such species alterations, should they occur, would not affect the numerous higher-level criteria of tropical for- est integrity, such as forest vulnerability to fire, fertility of forest soils, forest carbon content, or the role of tropi- cal forests in regional hydrological and climate systems. There are also a number of factual misconceptions in Terborgh and Redford & Sanderson's comments which have important implications. Terborgh claims that extrac- tive reserves are impermanent and can be rescinded when conditions change. Extractive reserves are in fact created by presidential decree and can be altered by law (i.e., by the congress), just as is the case for all other fed- eral Brazilian conservation areas, including national parks. Redford & Sanderson hold that extractive reserves are "social, not ecological spaces." They are in reality both: "The Executive Branch will create extractive reserves i territories deemed of social and ecological interest" (Decreto No. 98.897, 30 de Janeiro de 1990). Communi- ties in a reserve contract long-term concession of use rights from the government to the reserve only when they have, through a representative organization, pre- sented a use plan for the area that complies with princi- ples of sustainability established in law and that can be rescinded in the event of environmental damages. As Carneiro da Cunha and Almneida have aptly put it, tradi- tional (but not indigenous) populations are in a legal sense parties to a pact with the nation: in exchange for land and other rights, they agree to practice sustainable use of natural resources (Carneiro da Cunha & Almeida 1999). Far from giving local people "the sole responsibil- ity of the political viability of protected areas" (Chiccon; Redford & Sanderson), the reserves in the first instance re- move a key obstacle to their empowerment by resolving land conflicts and guaranteeing security of tenure. Redford has long maintained that he seeks only to make realistic collaboration between indigenous peo- ples and conservationists possible by dispelling illusions and clarifying where goals diverge (Redford & Stearman 1993). He resurrects the venerable stalking horse of the "ecologically noble savage," charging that we treat for- est residents as "homogeneously good." But we have only observed that forest peoples' organizations and rep- resentatives are important political actors, in what is af- ter all a political process, and that effective alliance re- quires the allies to recognize one another's legitimacy. Terborgh in particular appears unaware that both extrac- tive reserves and indigenous lands belong to the nation: these are federal lands (in the case of indigenous lands, in- alienably) to which local groups have determinate use rights. The notion of "tuming valuable natural resources Conservation Biology Volume 14, No. 5, October 2000 This content downloaded from 165.193.178.76 on Sat, 26 Mar 2016 17:41:06 UTC All use subject to http://about.jstor.org/terms Schwartzman et al. People versus Parks 1373 over" to local communities, conceived as similar to the U.S. Sagebrush Rebellion, is thus a wildly inaccurate analogy. Terborgh asks rhetorically how many readers have "been drawn to visit tribal reservations in the United States by the promise of seeing wildlife spectacles?" Those who fail to study history may indeed be doomed to repeat it. The great wildlife spectacles of the United States were driven to destruction by white settlers, not the Indi- ans-most notably the American bison (Bison bison), brought to the brink of extinction as a matter of public policy precisely in order to reduce the plains Indians to destitution and occupy their lands. This highly selective vision of the history of U.S. con- servation is more accurately described as nostalgic than backward-looking. Only through exceptional optimism- or deep pessimism-can a system that has 5% of the na- tion's native forests not protected be projected as a model for a forest half the size of the United States that is still at least 80% intact. Our vision is indeed different from Ter- borgh and Redford & Sanderson's. It starts with the effec- tive protection of native and traditional peoples' lands and builds on the dozens of local education, health, and economic projects that local leaders, professionals, and scientists have developed over the last 20 years that point the way to a better life for people in and around the forest. We emphasize continual dialogue, experimen- tation, support for unions, associations, and other grass- roots groups that seek sustainable family agriculture, and support for environmental political leaders such as those in the Amazon. We propose to continue and ex- pand dialogue with all actors on issues of common con- cern, such as fire prevention. We see the creation of glo- bal and national means to compensate forest communities and governments for the ecosystem services of the forest as a critical priority. 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