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45 Cards in this Set

  • Front
  • Back
population
group of individuals of the same species
community
assemblage of populations of different species
ecosystem
all abiotic factors and community in an area
abiotic factors
biosphere
biome
temperature
water
light
wind
rocks and soil
periodic disturbances
thermal stratification
vertical temperature layering
detritus
dead organic matter
littoral zone
shallow water close to shore
limnetic zone
well-lit open water farther from shore
profundal zone
deep, aphotic waters
thermocline
narrow layer, rapid temperature change
oligotrophic lake
deep waters, nutrient poor
eutrophic lake
shallow waters, nutrient rich
mesotrophic
moderate productivity
intertidal zones
area where land meets water
neritic zone
shallow regions over continental shelves
oceanic zone
very deep water past the continental shelves
pelagic zone
open water of any depth
benthic zone
sea floor bottom
abyssal zone
benthic region in deep oceans
tropical forests
equator
most complex
constant temperature and rainfall
canopy
savanna
tropical grassland with scattered trees
occasional fire and drought
large herbivores
forbs?
desert
sparse rainfall
widely scattered shrubs
chaparral
spiny evergreens at midlatitudes along coasts
fire-adapted vegetation
temperate grassland
all grasses
seasonal drought
occasional fires
relative cool regions
temperate deciduous forest
midlatitude regions
broad-leaf deciduous trees
taiga
cone-bearing trees/coniferous forest
tundra
permafrost, very little precipitation
wetlands
areas covered withwater and supporting water plants
important to flood control and water quality
estuaries
where a freshwater river meets and ocean
highly productive
principle of allocation
used to analyze how an organism divides its limited energy among reproduction, eaitng, growing, escaping from predators, and homeostasis
REGEH
regulator
organism able to regulate its behavior and physiology and therefore able to adapt;
not much of its energy budget can be allocated to reproduction
acclimation
can extent the tolerance limit of an organism
conformer
needs a specific area and environment that stays constant with little change (eg a coral reef)
upwellings
bring nutrient rich water to the surface
agnostic behavior
involves a contest to determine which competitor gains access to a resource
dominance hierarchies
eg wolf packs
promiscuous
no strong pair bonds forming
polygynous
one male and many females
polyandrous
one female and many males
migrations
long-distance regular movements often involving a round trip each year
piloting
traveling from one familiar landmark to another
orientation
an animal detects compass directions and moves in a straight path towards its destination
navigation
ability to detect compass direction and to determine present location relative to a destination (a map sense)
nitrogen fixation
soil bacteria and symbiotic bacteria in root nodules fix nitrogen in terrestrial ecosystems
nitrification
some soil bacteria oxidize ammonium to nitrite and nitrate