Lectures - Metapopulations
4 important questions on Lectures - Metapopulations
How is nitrogen lost to the environment?
- Leaching of nitrate (NO3 −)
- Volatilisation (NH4 + → NH3 (g))
- Denitrification (NO3 − → N2O (g) and N2 (g))
What are the consequences of habitat fragmentation for interior- and edge habitat species?
What are ceveats of the island theory?
- The equilibrium assumption is difficult to justify in changing landscapes
- Does not consider important factors:
- Heterogeneity
- Disturbances
- Landscape matrix
- Treats species as identical
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What are the conditions for classic metapopulations?
- Suitable habitat present as a collection of discrete patches
- Dynamics of colonization and extinction
- Large populations can also go extinct
- Dynamics of populations are asynchronous
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