BIO 227 Lecture Notes - Lecture 12: Sumatran Tiger, Algal Bloom, Habitat Destruction
Document Summary
Fragmentation: large fragments have a greater variety of environments, large fragments likely to have both common and uncommon species, small fragments have smaller populations (more susceptible to going extinct) Habitat destruction and degradation: contamination, roads, dams, and other structures, fire and erosion (effects land and waterways, desertification, draining and dredging, deforestation. When their habitat is destroyed they sometimes go over to palm plantations to try to sustain themselves, plantation owners don"t want them eating their crop, they will kill them. Roads allow people to go deeper into the forest; poachers kill mother orangutans and take the babies for the illegal pet trade. They are very attached to their mothers so they cannot survive without them or they become depressed. o sumatran tiger: only 400 left in the wild, also at risk due to this deforestation o buy sustainably produced palm oil!
