BIOL 11000 Lecture Notes - Lecture 22: Ecotourism, Agroforestry, Renewable Energy

• School: Purdue University
• Department: Biological Sciences
• Course: BIOL 11000
• Professor: Dr.Anderson

Document Summary

Species a has an mvp of 100, with 2 individuals that can breed. B has the same mvp with 50 individuals that can breed. Declining-population approach: the study of threatened and endangered populations that are declining, even if population size is above mvp (minimal viable population) Habitat fragmentation: falls under habitat loss, breaks up larger habitat into smaller pieces. Increasing fragmentation increases edges and decreases interior habitats. Some animals only inhabit edge habitats and others only inhabit interior habitats. Can improve situation allowing population to exchange genes with larger number of individuals than they would if completely isolated. The hottest hotspots are only 1. 5% of the earth"s surface, but contain more than 1/3 of all species of plants, amphibians, reptiles, birds & mammals. Origi(cid:374)ally we tried to keep (cid:374)atio(cid:374)al parks u(cid:374)(cid:272)ha(cid:374)ged (cid:271)ut did(cid:374)"t realize i(cid:374)ter(cid:373)ediate (cid:272)ha(cid:374)ges are essential to ensure there is a high level of diversity among communities.