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Definition
| The study of the distribution and abudance of organisms and the factors and interactions that determine distribution and abudance |
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Definition
| non-living chemical and physical factors (temp, light, nutrients, water) |
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| living (biological) factors: aka other organisms, competition, predation |
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Definition
| a single individual of a single species |
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Definition
| Individuals of the same species living in the same geographical area |
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Definition
| 2 or more populations living in the same geographical area |
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Definition
| Comprising the community, together with its physical environment |
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Definition
| the short-term atmospheric conditions at a particular place and time |
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Definition
| the long-term average atmospheric conditions found over time (temp, precip, wind velocity) |
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Definition
| contiguous areas with similar climactic conditions on earth |
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Definition
| based on the structure of their dominant vegetation |
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Definition
| based on physical/chemical differences |
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Definition
| move organism and see if it can survive and reproduce in the new environment. Follow through at least one complete generation |
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Definition
| when a species can relocate but chooses not to |
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Definition
| the movement of organisms from one geographical location to another |
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Definition
| can occur between 2 or more organisms or species that exploit the same types of limited resources and live in the same geographical area |
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Definition
Intraspecific: within a species
Interspecific: between species
Interference: direct physical interaction
Exploitative: indirect interaction |
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Definition
| limits the distribution of organisms via direct consumption of prey or behavioral modifications of prey in the presence of predators |
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Definition
| Frequent disturbance allows organisms to adapt evolutionarily. Infrequent disturbance doesn't, duh. |
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Definition
| the number of individuals per unit area or volume |
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| Sub-sampling density methods |
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Definition
| quadrant, mark and recapture |
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Definition
| clumped, uniform, random (rare in nature) |
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Definition
| the maximum population size that an environment can support |
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| Density-dependent control |
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Definition
factors that alter per capita birth or death rates in a population are dependent on population density
ex. parasitism, predation, competition can be d-d |
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| Density-independent control |
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Definition
factors are independent of pop. density
ex: physical/chemical factors: weather, drought, freezes, flood and fire |
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Definition
If perturbed population will return to initial density
Density-dependent control (think cone on a plane) |
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Term
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Definition
| inverse density-dependence, D-D with long time lags (upside-down cone) |
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Term
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Definition
| population is divided into discrete sub-populations connected by immigration and emmigration |
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