BIO SCI 94 Lecture Notes - Lecture 20: 30Th Parallel North, Invasive Species, Ecosystem Ecology

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Robin Bush

Document Summary

Study of how organisms interact with their environment. Central goal: understand the distribution and abundance of organisms. Researchers work at five levels: organisms, populations, communities, ecosystems, global. Populations evolve in response to both biotic and abiotic factors in the environment: organisms interact within their environment may have to evolve in response. Clicker question: ecosystem ecology is best defined as the study of. The interactions among organisms and their physical environment as an integrated system. Biogeography: study of how organisms are distributed geographically. Because of fitness trade offs: organisms tend to be adapted to a limited set of physical conditions. To particular temperature and moisture regime on the land. Particular water depth and movement regime in water. Clicker question: the plants and animals found in borneo and sumatra differ greatly from those found in. A deep trench between the islands maintained a water barrier during the most recent glaciations. Exotic species introduced to new area, spreads rapidly, and eliminates native species.