BIOL 2Q04 Lecture Notes - Lecture 18: Conservation Biology, Species Richness, Planorbidae
2 Dec 2015
School
Department
Course
Professor
Document Summary
Ecological community: set of plants and animal species that occupy an. Community: a group of species that occupy a given area, interacting area either directly or indirectly. Biodiversity: measure of the variety of organisms that make up an. It represents the number of individual species in a community. Diversity: hugely important concept, especially in conservation ecology. And, you can measure diversity at the genetic level, community level, etc. Usually species in a specific community like insect community. We have seen some techniques to survey communities: plots, quadrats, quadrants, etc. Two possibilities: presence/absence of a species, abundance: number of individuals of a species in a community i. e. per unit of area. Usually used in studues and it is the percentage each species contributes to the total number of individuals of all species. If 5 individuals of species a, 3 of species b, and 2 of species c; relative abundance of species c= 0. 2.
