BIOL 2310 Chapter Notes - Chapter 4: Acid Rain, Eutrophication, Habitat Fragmentation
Document Summary
7 major threats to biodiversity: habitat destruction, habitat fragmentation, pollution, global climate change, overexploitation of resources. Humans dominate the global ecosystem through land use, the nitrogen cycle(releasing more nitrogen into the environment), and the atmospheric carbon cycle(increasing co2 in the atmosphere) Globalization- the increasing interconnectedness of resource and labour markets. Ecological footprint- the per capita influence a group of people has on both the surrounding environment and locations across the globe. Results from the expansion of human populations and activities. Frontier forest- intact blocks of undisturbed forest large enough to support all aspects of biodiversity. Shifting cultivation- subsistence farming sometimes referred to as slash and burn or. Swidden , agriculture in which trees are cut down and then burned. The cleared patches are farmed for a few seasons until the soil fertility is diminished. The process whereby a large continuous area of habitat is both reduced in area and divided into.
