Читать книгу Fundamentals of Conservation Biology - Malcolm L. Hunter Jr. - Страница 84

The coarse‐filter–fine‐filter metaphor (see Fig. 4.8) captures the strategic value of protecting ecosystems as a vehicle for maintaining species diversity, but the relationship between ecosystem‐level conservation and species‐level conservation is more complex than this. Some of this complexity is captured in two related questions that have long intrigued ecologists. First, are species‐rich ecosystems more stable than species‐poor ecosystems? Second, why do some ecosystems have more species than other ecosystems?