ess 3.4

explain **conservation** biology

* uses a sustainable use of resources
* looks for ways to help the local/native peoples through income
* \*ecotourism\*

explain **preservation** biology

* attemps to completely **exclude** all human activity in preserved areas
* believes nature is **not a resource** for human exploitation

in - situ conservation

* protection of a species in **thier habitat**
* ex:
* nature reserve
* national park
* marine park

ex - situ conservation

* improves the likelihood of species survival by taking them out of thier natural habitat & breeding them in captivity
* ex:
* zoos → captive breeding

nature reserves

conserves the species in thier natural habitat

* ex:
* terrestrial
* marine

explain the advantages and disadvantages of nature right reserves

advantages:

* species stay adapted to natural habitat
* genetic diversity
* natural behavior

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disadvantages:

* can be unsafe to now have a rare species in the wild
* habitat loss forces the removal of the threatnened species

explain edge effects

%%edge species%%

* favor generalist species
* more wind & rain
* more species

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^^interior species:^^

* species decrease

explain the best shape for protected areas

* large circle
* intact
* round

deep ecologists with eccocentric views

believe there is a moral duty to conserve biodiversity

cornucopians with technoccentric views

believe biodiversity loss is ok

values of biodiversity

ecpnomic

* food
* timber
* tourism

non gov’t organizations looking to protect biodiversity

* wwf
* birdlife int’l

gov’t organizations looking to protect biodiversity

* UNEP (UN enviornment program)
* FAO (food agriculture organization)

keystone species

help define an ecosystem