Overexploitation
4 important questions on Overexploitation
What are the causes of increased hunting pressure in tropical forests?
- Loss of forest
- Increase in human population size
- Urbanization
- More access to forest due to roads and fragmentation
- Commercialization of hunting
What traits are associated with extinction?
What is the effect of loss of large mammals?
- Less top-down control on ecosystems
- Ecological release of small mammals, especially rodents
- Less seed dispersal: increase in rodent population and seed predation
- Pre-depletion: loss of predators
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What are the functions of small mammals in ecosystems?
- Seed dispersal
- Consumption of vegetation and invertebrates
- Soil disturbance
- Prey for other species
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