how to maintain biodiversity Flashcards

1
Q

what is conservation

A

protection and maintenance of ecosystem and species

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2
Q

what is in situ conservation

A

conserving animals in natural habitat

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3
Q

benefits in situ conservation

A

species can continue to evolve with environment

allows species to have more space

animals breed better

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4
Q

costs in situ conservation

A

risk of poaching

may not be successful if small population

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5
Q

how is in situ conservation carried out

A

internationally designated areas
nationally protected area
nature reserves
marine conservation zones
environmental stewardship scheme

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6
Q

what is internationally designated area

A

areas designated by orgs like UNESCO
world heritage sites
biosphere programmes to promote sustainable development

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7
Q

what is nationally protected area

A

15 national parks in UK

countryside areas with stricter planning permission

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8
Q

what is nature reserves

A

area of protected ecosystem
managed by national body

aim to maintain conditions

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9
Q

what is marine conservation zones

A

28 in uk
eg sea around lundy island

no take zones to allow recolonisation to support a diverse community

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10
Q

what is environmental stewardship scheme

A

farmers funded if deliver good environmental management

keep traditional character and livestock/crops

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11
Q

what is ex situ conservation

A

protection of species away from its normal habitat in a protected area
eg zoo or botanic garden

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12
Q

why is exsitu used

A

og habitat shrinking or fragmented

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13
Q

what are seed banks

A

seeds collected from crops dried and frozen
regularly checked if still viable

supply for future
protect genetic diversity

sometimes dont survive freezing

less 85% viable regrow and capture fresh seeds
-alters genetic diversity

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13
Q

what are botanic gardens

A

grow plants extinct in wild and reintroduce
easier to grow as no animals

can research species

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14
Q

what are zoos

A

protect endangered species
have breeding programmes
can conduct research

small gene pool so inbreeding
- exchange animals between zoos

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15
Q

what how are seeds stored

A

captured
check for infection
dried at 15 degrees
moisture content down to 5%
stored for 20years+ in -20degrees

seeds removed and tested by germinating