ecology Flashcards

1
Q

organisms

A

individuals

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2
Q

populations

A

same species in the same environment

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3
Q

communities

A

all plants and animals in the same environment

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4
Q

ecosystems

A

living organisms and the environment they live in

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5
Q

biosphere

A

the earth

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6
Q

organismal ecology

A

interested in adaptations that allow for organism to live in a different habitats

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7
Q

adaptations

A

can be morphological, behavioral, or physiological

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8
Q

conspecific

A

two individuals of the same species

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9
Q

biogeography

A

study of the distribution of living organisms across geographic space

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10
Q

heterospecific

A

interaction of different species

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11
Q

biotic

A

living

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12
Q

abiotic

A

non-living

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13
Q

endemic species

A

found in one very specific area, usually limited in size

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14
Q

terrestrial biomes

A

forest, deserts, grasslands, tundra

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15
Q

forests

A

tropical
chaparral
temperate
deciduous
coniferous

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16
Q

deciduous

A

trees that loose their leaves

17
Q

chaparral

18
Q

deserts

A

semi arid
hot/dry
coastal
cold

19
Q

grasslands

A

prairie(temperate)
savannah(tropical)

20
Q

tundra

A

low plant life
mostly moss

21
Q

aquatic biomes

A

saltwater
brackish
freshwater

22
Q

saltwater

A

shallow coastal (reefs)
deep sea(benthic –>bottom)
open ocean(pelagic)

23
Q

brackish

A

estuaries
salt marshes

24
Q

freshwater

A

lakes/ponds
rivers/streams
wetlands/swamps

25
what has human impact led to
overfishing destruction of habitats for development, agriculture, wood pollution extermination of native animal and plant populations excessive release of greenhouse gases through burning of fossil fuels
26
reasons for global variation in climate
uneven heating of the earth's surface by the sun rotation of the earth on its axis -equator spins faster than the regions north and south of it - prevailing winds that result distribute heat and moisture over the earths surface and dive oceans currents properties of air, water, and land -convection transfers energy and water
27
el nino
occurs every 2-7 years when a high pressure weather system that is normally stable over the eastern pacific ocean breaks down, destroying the pattern of westward-blowing trade winds -warm water reversal which causes a warmer winter
28
largest threats to coral reefs
increases sea temperature decreased pH increased disease(related to increased temperature and human activity) direct human contact coastal development(run off, increased nutrients
29
global climate change means
co2 and other greenhouse gases are released by humans are contributing to global warming of atmosphere and sea increased number and intensity of hurricanes sea surface level rise ocean acidification
30
natural effects of global climate regulation
milankovitch cycles solar intensity --> decreased in recent years volcanic activity- haze-cooling effect
31
eccentricity
the shape of earth orbit
32
precession
direction earths axis of rotation is pointed
33
obliquity
the angle earths axis is tilted with respect to earths orbital plane