Chapter 9: Sustaining Biodiversity: The Species Approach

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Fish and Wildlife Services

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23 Terms

1

Fish and Wildlife Services

Protect and identify all other species.

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2

Endangered Species

Species with few members that the species could become extinct

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3

Threatened Species (vulnerable species)

Still enough members to survive, but numbers declining -- may soon be endangered

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4

Biological Extinction

No species member alive

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5

Background Extinction

Natural low rate of extinction

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6

Extinction Rate

Percentage or number of species that go extinct in a certain time period

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7

Mass Extinction

50-95% of species become extinct usually due to a major global change in environmental conditions.

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8

H

Habitat destruction, degradation, and fragmentation

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9

I

Invasive (nonnative) species

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10

P

Population and resource use growth

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11

Second P

Pollution

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12

C

Climate change

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13

O

Overexploitation

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14

Habitat Fragmentation

Large intact habitat divided by roads, crops, urban development

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15

Bioaccumulation

Increase in concentration of a pollutant in an organism

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16

Biomagnification

Increase in concentration of a pollutant in a food chain

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17

Jane Goodall

Primatologist and anthropologist

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18

Convention on International Trade in Endangered Species (CITES)

Singed by 172 countries in 1975

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19

Convention on Biological Diversity

It focused on ecosystems and was ratified by 190 countries. (Not in the US)

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20

Endangered Species Act

Identify and protect endangered species in the US and abroad. It also does not allow federal agencies from funding projects that threaten species that are already endangered

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21

National Marine Fisheries Service

Protect and Identify ocean species

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22

Gene or seed banks

Preserve genetic material of endangered plants

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23

Precautionary Principle

Act to prevent or reduce harm when preliminary evidence indicates its needed

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