A plethora of normative conservation concepts have recently emerged, most of which are ill-defined: biological diversity, biological integrity, ecological restoration, ecological services, ecological rehabilitation, ecological sustainability, sustainable development, ecosystem health, ecosystem management, adaptive management, and keystone species are salient among them. These normative concepts can be organized and interpreted by reference to two new schools of conservation philosophy, compositionalism and functionalism. The former comprehends nature primarily by means of evolutionary ecology and considers Homo sapiens separate from nature. The latter comprehends (...) nature primarily by means of ecosystem ecology and considers Homo sapiens a part of nature. Biological diversity, biological integrity, and ecological restoration belong primarily in the compositionalist glossary; the rest belong primarily in the functionalist glossary. The former set are more appropriate norms for reserves, the latter for areas that are humanly inhabited and exploited. In contrast to the older schools of conservation philosophy, preservationism and resourcism, compositionalism and functionalism are complementary, not competitive and mutually exclusive. As the historically divergent ecological sciences—evolutionary ecology and ecosystem ecology—are increasingly synthesized, a more unified philosophy of conservation can be envisioned. (shrink)

Like biodiversity, sustainability is a buzz word in current conservation discourse. And like biodiversity, sustainability evokes positive associations. According to Allen and Hoekstra, “everyone agrees that sustainability is a good thing.” Both sustainability and biodiversity, however, are at grave risk of being coopted by people primarily concerned about things other than biological conservation. As Noss notes, “virtually everyone who has used the term sustainability seems to have had ‘human needs and aspirations’ as their primary concern.” Amgermeier and Angermeier and Karr (...) point out that local biodiversity can be artificially increased by introducing nonindigenous species into a biotic community; and, indeed, sports fisherpersons more concerned about angling opportunities than about biological conservation have cloaked their argument for introducing nonindigenous game fish to the Great Lakes in the mantle of enhanced biodiversity. (shrink)