ECOLOGY LECTURES 1-4

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  • Created by: m_ghammer
  • Created on: 19-05-18 16:35
interference competition
one organism will prevent another from using a particular resource, e.g. competition between predatory organisms for dead prey; less common
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density-dependent limiting factors
cause the survival rate of an individual to decrease with increased population density
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alpha diversity
compares the number of species in a particular area/ecosystem; e.g. 200 tree species in 100 ha forest compared to 1000 tree species in 100 ha of the Amazon
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gamma diversity
compares the diversity of the entire landscape e.g. Kenya vs Britain
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beta diversity
compares the differences in species composition between sites; calculated as [gamma diversity/average alpha diversity]
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latitudinal diversity gradient
describes the pattern that species richness decreases with distance from the equator
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species-area relationship (SAR)
implies that species richness increases with the area sampled; the tropical biome is the largest biome and so this can support more species
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natal dispersal
migration from birth site to breeding site
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breeding dispersal
movement from one breeding site to another
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Other cards in this set

Card 2

Front

density-dependent limiting factors

Back

cause the survival rate of an individual to decrease with increased population density

Card 3

Front

alpha diversity

Back

Preview of the front of card 3

Card 4

Front

gamma diversity

Back

Preview of the front of card 4

Card 5

Front

beta diversity

Back

Preview of the front of card 5
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