Biodiversity Definitions

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ellawolfe
Flashcards by ellawolfe, updated more than 1 year ago
ellawolfe
Created by ellawolfe over 10 years ago
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Question Answer
Habitat the place where an organism lives including the non living factors as well as the other species that live there
Species a group of organisms whose members are similar to each other and can interbreed to produce fertile offspring
Biodiversity the number and range of different species to be found in the world, the genes they carry and the habitats in which they live
habitat diversity the number of different habitats in an area
species diversity the number of different species and the abundance of each species in an area
genetic diversity the variation of alleles within a species
abundance number of
distribution of species where the species are found in a habitat
species richness the number of different species present in a habitat
species evenness a measure of the relative abundance of individuals in each species
simpsons index of diversity a formula used to measure the diversity of a habitat, taking into account both evenness and richness
extinction the death of the last member of a species
endangered species the population of the species is so low that there is a likely risk of extinction
critically endangered species the population of the species is so low that the species will become extinct
in situ conservation conserving a species in its natural environment
ex situ conservation conservation in artificially created environments
keystone species a species that plays a critical role in maintaining the structure of an ecological community, whose impact on the community is greater than expected based on its relative abundance
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