Effects of habitat destruction - Biotic effects of habitat fragmentation
3 important questions on Effects of habitat destruction - Biotic effects of habitat fragmentation
What is ment by the term "relaxation time"?
The time lag between the creation of a habitat fragment and the dicrease in species richness to equilibrium level.
What is the major consequence of habitat fragmentation, when considering the fate of a single species?
Populations get framed in smaller units. Smaller habitat has a smaller carrying capacity. Smaller populations are at larger risk of extinction than large ones.
What four factors are thought to increase the probability of extionction in small populations relative to larger populations?
- demographic stochasticity
- genetic stochasticity
- environmental stochasticity
- natural catastrophies
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