ENV100Y5 Lecture Notes - Lecture 11: Deep Ecology, Mescaline, Ecotourism

• School: UTM
• Department: Environment
• Course: ENV100Y5
• Professor: Barbara Murck

Document Summary

Biodiversity helps maintain ecosystem functions: biodiversity increases the stability and resilience of communities and ecosystems, decreased biodiversity reduces natural system"s ability to function and provide services, biodiversity is important in order for the ecosystem to function properly. We usually have different distribution in species rather than evenness. Three measures we can use to describe species richness (number of different. Species: a(alpha)-diversity = number of species in local area of homogeneous habitat, y(gama)-diversity = number of species in large geographic area that comprises many habitats, b(beta)-diversity = turnover in species from one local area to another, b= y/a. If the same species are found in different habitats over a wide area, then. If different species are found in different habitats over a wide area, then: b(beta) is greater than 1 - hi beta diversity. If species are mostly generalists, b-diversity is low- leopard frogs which can be found all over the place such as lakes, rivers, ponds, streams, wetlands etc.