1. biodiversity Flashcards

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1
Q

define biodiversity

A

the variety and variability of all life on Earth

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2
Q

3 levels of biodiversity

A

genes in a gene pool
species in an ecosystem
ecosystems in a region/the biosphere

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3
Q

what is biodiversity important

A

provides direct services, indirect services and aesthetic/ethical effects

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4
Q

biodiversity direct services

A

shelter, medicines (Rosy Periwinkle - childhood lukemia), food

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5
Q

biodiversity indirect services

A

mangroves protect from storm erosion, quicker/easier recovery from unpredictable weather events

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6
Q

biodiversity ethical/aesthetic effects

A

cultural importance, recreation spaces, research and education

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7
Q

biodiversity hotspot criteria

A

1500+ endemic vascular plant species, 70% of original habitat lost

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8
Q

why are biodiversity hotspots important

A

helps scientists know where to aim conservation efforts, helps preserve endemic species

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9
Q

main threats to biodiversity

A

degradation of habitat, invasive species, climate change, changes to water flows, unsustainable use of natural resources

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10
Q

in-situ conservation

A

conservation within a species natural habitat. creating national parks, wildlife sanctuaries, international migration routes

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11
Q

ex-situ conservation

A

conservation of a species outside of its natural habitat. Includes breeding programs, maintenance of endangered species in artificial ecosystems

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