19.7 Conservation of habitats Flashcards
Define conservation
protection and management of species and habitat in a sustainable way
define sustainable conservation
enough resources are taken to meet the need of people today without reducing the ability of people in the future to meet their own needs
what are the main reasons for conservation
- personal (maintaining planet, so life support)
- ethical (respect for living things)
- economic (gigantic gene pools, may prove valuable in the future
- cultural and aesthetic
why is there conflict about conservation
have to have a balance with human needs and conservation
example of conflict in conservation
maasia people vs conservation
- traditionally earn money by raising cattle
- want to protect maasion mara grassland and wildlife from impact og over grazing
what is the management of the conflict in maasia people and conservation
conservation trust work with them, help them make money via conservation, ecotourism and farming in a sustainable way
5 conservation methods
- managing succession
- seed banks
- captive breeding
- fishing quotas
- protected areas
managing succession + adv, disadv
preventing succession by grazing of growing trees or shrubs, or managed fires
+ preserves ecosystems
seed banks + adv, disadv
store of seeds, back up for conservation
+ large no. of small seeds in a small space
+ reintroduce extinct species
- need regular testing for viability
- costly, time consuming
captive breeding + adv, disadv
endangered (extinct in wild) species are bred in captivity (zoos)
+ animals can be reintroduces into the wild = increase in pop
- not always successful
- hard to recreate habitats in zoos
fishing quotas + adv, disadv
limit no. of certain fish species allowed to be caught
- limiting fishermen’s income
- hard to manage (reintroduction of dead fish isn’t conservation)
protected areas + adv, disadv
restricted urban development
- often become tourist destinations
