Classifying species as ‘native’ or ‘alien’ carries prescriptive force in the valuation and management of ‘nature’. But the classification itself and its application are contested, raising philosophical and geographical questions about place, space, rights, identity and belonging. This paper discusses leading critiques of the native/alien paradigm, including its conceptual fluidity, dichotomous rigidity and ethical difficulties, as well as the incendiary charge of xenophobia. It argues that valorizing ‘native nature’ as inherently the ‘best nature’ is not only obsolete but impracticable in (...) the Anthropocene, and that the preeminence of biogeographic origins should be replaced with a pragmatic focus on species’ behavior. (shrink)

Metaphors for describing the introduction, impacts, and management of non-native species are numerous and often quite outspoken. Policy-makers have adopted increasingly disputed metaphorical terms from scientific discourse. We performed a critical analysis of the use of strong metaphors in reporting scientific findings to policy-makers. Our analysis shows that perceptions of harm, invasiveness or nativeness are dynamic and inevitably display multiple narratives in science, policy or management. Improving our awareness of multiple expert and stakeholder narratives that exist in the context of (...) non-native species management, as well as metaphorical alternatives, is critical. (shrink)

The study of biological invasions raises troubling scientific, political and moral issues that merit discussion and debate on a broad scale. Nativist trends in Conservation Biology have made environmentalists biased against alien species. This bias is scientifically questionable, and may have roots in xenophobic and racist attitudes. Rethinking conservationists' conceptions of biological invasion is essential to the development of a progressive environmental science, politics, and philosophy.

Two protracted debates about the moral status of animals in ecological restoration projects are discussed that both testify to the troubling aspects of our inclination to think in terms of dualisms and dichotomies. These cases are more or less complementary: the first one is about the (re)introduction of species that were once pushed out of their native environment; the other one concerns the elimination or eradication of “exotic” and “alien” species that have invaded and degraded ecosystems. Both cases show the (...) detrimental impact of dualistic thinking on ecological restoration projects. In the first case, communication and cooperation between stakeholders is frustrated by the opposition of zoocentrism and ecocentrism; in the second case the opposition of nativism and cosmopolitanism appears to be a major stumbling block for consensus building and conflict management. I will argue that “gradualization”—thinking in terms of degrees instead of boundaries—can offer a way out of this black-and-white thinking and can open up space for negotiation and deliberation among different and sometimes diverging perspectives. (shrink)

This paper illuminates a variety of issues that speak to the question of whether ‘captivity for conservation’ can be an ethically acceptable goal of the modern zoo. Reflecting on both theoretical disagreements and practical challenges , the paper explains why the ‘Noah’s Ark’ paradigm is being replaced by an alternative ‘integrated approach.’ It explores the changes in the zoo’s core tasks that the new paradigm implies. And it pays special attention to the changes that would have to be made in (...) zoos’ collection policies: connection with in situ projects, emphasizing local species and the local biogeographical region, exchange of animals among zoos and between zoos and wildlife, and a shift towards smaller species. Finally the question will be addressed whether the new paradigm will achieve a morally acceptable balance between animal welfare costs and species conservation benefits. (shrink)