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26 Cards in this Set
- Front
- Back
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density
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number per area
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distribution
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area they live
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ecology
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the study of interactions that determine the distribution and abundance of organisms
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ticks
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carry lyme, nutrition is blood, latch onto prey, parasite, females are the only ones that feed, 2 year life cycle
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rappaports rule
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geographic ranges from the poles to the equator, diversity increases
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generalist
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take a wide geographic range, more abundant
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specialist
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narrow range of food and geographic climate, more types
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liebigs law of the minimum
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any biological process is limited by a single factor that is least limited
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shelfords law of tolerance
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distribution of a species is controlled by the environmental factor which the species has the narrowest tolerance
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diffusion
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gradual spread
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jump
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movement of an organism over a large distance
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SLOSS
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several less or several small
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Impact of rapid climate change
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redistribution of trees, timing of biological processes, alpine tundra species may be climated as trees colonize
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polar ice caps
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low precipitation, temps rising due to global warming, 6 months of dark 6 months of daylight
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grassland
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40% of earths surface, threats-overgrazing and farming
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Taiga
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largest biome, below 0 most of the year
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algae and fungi
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NOT VEGETATION
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environmental study
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analysis of human impacts on the physical, chemical and biological environment on earth
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balance of nature
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number of species remained essentially constant overtime
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scientific law
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universal statement that is so well supported by observations that everyone accepts it as part of the scientific background of knowledge
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interaction web
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boxes and arrows diagram of all the relationships between species in the ecosystem
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phenotype
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whats on the outside
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genotype
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whats on the inside
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biographical realms
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nearctc, palearctic, australian, oriental, ethiopian, neotropical
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logistic growth
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grows at a steady rate until it hits its carrying capacity and then levels off
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exponential growth
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continues to grow
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