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APES Flashcards

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10928958706species richness# of species in a given area0
10928962959species evenessthe relative proportion of individuals within the different species in a given area1
10928973645phylogenythe branching pattern of evolutionary relationships2
10928986080evolutiona change in the genetic composition of a population over time3
10928995416genotypethe complete set of genes in an individual4
10929004253phenotypea set of traits expressed by an individual5
10929024297fitnessan individual ability to survive and reproduce6
10929033045adaptationsa trait that improves an individuals fitness7
10929041394genetic drifta change in the genetic composition of a population over time as a result of random mating8
10929045232bottleneck effecta reduction in the genetic diversity of a population caused by a reduction in its size9
10929050891founder effectA change in the genetic composition of a population as a result of descending from a small number of colonizing individuals10
10929060941geographic isolationphysical separation of a group of individuals from others of the same species11
10929069095reproductive isolationThe result of two populations within a species evolving separately to the point that they can no longer interbreed and produce viable offspring12
10929074910allopatric speciationthe process of speciation that occurs with geographic isolation13
10929091565sympatric speciationthe evolution of one species into two, without geographic isolation14
10929098674range of tolerancethe limits to the abiotic conditions that a species can tolerate15
10929104689realized nichethe range of abiotic and biotic conditions under which a species can survive, grow and reproduce16
10929135953distributionareas of the world in which a species lives17
10929138612generalista species that can live under a wide range of abiotic and biotic conditions18
10929154340specialista species that is specialized to live in a specific habitat or to feed on a small group or species.19
10929183671Mass Extinction Endangereda large extinction of a species in a relatively short period of time.20

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