Chapter 56- Conservation Biology and Global Change Flashcards

1
Q

bio

A

life

biodiversity hot spot: a relatively small area with an exceptional concentration of species

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2
Q

assisted migration

A

The translocation of a species to a favorable habitat beyond its native range for the purpose of protecting the species from human-caused threats

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3
Q

biodiversity hot spot

A

A relatively small area with numerous endemic species and a large number of endangered and threatened species

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4
Q

biological magnification

A

A process in which retained substances become more concentrated at each higher trophic level in a food chain

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5
Q

conservation biology

A

The intergrated study of ecology,evolutionary biology, physiology, molecular biology, and genetics to sustain biological diversity at all levels

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6
Q

critical load

A

The amount of added nutrient usually nitrogen or phosphorous, that can be absorbed by plants without damaging ecosystem integrity

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7
Q

ecosystem service

A

A function performed by an ecosystem that directly or indirectly benefits humans

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8
Q

effective population size

A

An estimate of the size of a population based on the numbers of females and males that successfully breed, generally smaller than total population

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9
Q

endangered species

A

A species that is in danger of extinction throughout all or a significant portion of its range

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10
Q

extinction vortex

A

A downward population spiral in which inbreeding and genetic drift combine to cause a small population to shrink, and unless the spiral is reversed become extinct

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11
Q

greenhouse effect

A

The warming of Earth due to the atmospheric accumulation of carbon dioxide and certain other gases, which absorb reflected infrared radiation and reradiate some of it back toward Earth

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12
Q

introduced species

A

A species moved by humans, either intentionally or accidentally, from its native location to a now geographic region; also called non-native or exotic species

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13
Q

minimum viable population (MVP)

A

The smallest population size at which a species is able to sustain its number and survive

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14
Q

movement corridor

A

A series of small clumps or a narrow strip of quality habitat (usable by organisms) that connects otherwise isolate patches of quality habitat

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15
Q

sustainable development

A

Development that meets the needs of people today without limiting the ability of future generations to meet their needs

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16
Q

threatened species

A

A species that is considered likely to become endangered in the foreseeable future

17
Q

zoned reserve

A

An extensive region that includes areas relatively undisturbed by humans surrounded by areas that have been changed by human activity and are used for economic gain