ZOOLOGY 651 Study Guide - Midterm Guide: Background Extinction Rate, Habitat Fragmentation, Alpha Diversity
26 Oct 2016
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Elephant a good symbol of conservation ecosystem engineers charismatic megafauna - popular and symbolic umbrella species. Protecting the habitats they depend on and the processes that exist within it. Historically - mostly direct threats: overharvesting/overexploitation today - mostly indirect threats: habitat loss and fragmentation logging, agriculture, and development. Paul ehrlich"s equation rise in human population. Biocentrism aesthetic reasons every species has an intrinsic right to exist dynamic balance that is intrinsically beautiful. Providing important natural functions diversity increases productivity and stability ecosystem services. Biodiversity provides actual and potential material and economic benefits to people utilitarian argument continuance of evolutionary processes insurance limited perspectives values are likely to change limitations and dangers of utilitarian arguments for conservation. What threatens it? susceptible to fungal disease. Bd permeable skin susceptible to toxins in environment amphibians in general began to disappear (w e) What can they do about it? long-term prospects seem dim.
