How have humans contributed to the decline in native species and what can be done to save them?
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Answer:
The main human activity that affect biodiversity are habitat destruction, foreigner species importation and hunting.
Explanation:
Habitats destructions:
It is the main cause of loss of diversity.
More that the destruction of specie's habitats, the patches that are still viable for species get isolated from one another wich lead to a decreas in genetique exchange ( wich tend to consanguinity)It decrease the resistance of a meta population ( = a population divided in several smaller population) by decreasing the exhanges between the differents parts. Indeed if two pacth are further away than the dispersal ability of the species within, there won't be any exanges.
You can picture every patch like islands inaccessible from one another.
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