conservation Flashcards
define conservation
protection and management of species and habitats in a sustainable way
define sustainable
enough resources are taken to meet the needs of people today without reducing the ability of people kin the future to meet their own needs
why does conservation require careful management
to maintain sustainability of natural resources
name the 5 different conservation methods
managing succession
seed banks
captive breeding
fishing quotas
protected areas
how do you manage sucession
preventing succession
preserve an ecosystem
evaluate to manage succession
+ more successful
- grazing sheep eat growing shrubs and trees
- managed fires so secondary succession will occur so the pioneer species are what are being conserved
how do seed banks aid conservation
store of seeds for lots of species
back up for conservation
reintroduce extinct species
evaluate the use of seed banks
+ large number of seeds stored in a small space
- seeds need to regularly tested to ensure they are viable
(testing is expensive and time consuming)
define captive breeding as a conservation method
endangered/extinct in wild species are bred in captivity (zoos)
evaluate captive breeding as a conservation method
+ animals can be reintroduced into wild which increases wild population size
- reproduction isn’t always successful
- hard to recreate habitat in a zoo
define fishing quotas as a conservation method
to limit the number of certain fish species that are allowed to be caught
evaluate fishing quotas as a conservation method
- limits a fisherman’s income
- hard to manage
(throwing away dead/damaged fish not conservation)
define protected areas as a method of conservation
restrict urban development
evaluate protected areas as a method of conservation
+ maintaining ecosystem and biodiversity
- tourist destinations manage impact of people
