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Definition
Geographic range of a species; size, shape, and location of area occupied by population
Largely influenced by abiotic or physical (esp. climate) factors |
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Definition
| Habitat of one type surrounded by different habitat types |
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Definition
| Attraction between individuals-Individuals live in areas of high local abundance, which are separated by areas of low abundance |
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Definition
| Neutral interaction between individuals, An individual has an equal probability of occurring anywhere in an area |
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| Regular or Uniform dispersion |
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Definition
| Negative interaction between individuals, Individuals are uniformly spaced throughout the environment |
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Definition
| A group of individuals of a single species inhabiting a specific area |
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Definition
| Produces surplus offspring who emigrate to other areas; more births, less deaths locally Habitat quality is high |
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Definition
| Population is maintained by immigration; more deaths, less births locally Habitat quality is poor |
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Definition
| The number of individuals per unit area |
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Definition
| Exit area With an E and one M |
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Definition
| Enter area With an I and two M's |
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Term
The rarest species have 3
characteristics that make them so vulnerable to extinction what are they? |
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Definition
Restricted Geographic range, narrow habitat tolerance, and small local population size
An example: Mountain Gorilla |
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Term
| Attributes of Population Structure |
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Definition
| size, density, spacing, and migration patterns |
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Term
| Although two species may have overlapping distributions... |
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Definition
| they may not occur w/in the same microenvironments |
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Term
| Negative Assortive Mating |
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Definition
| Choose mate that's genetically different from oneself; most species practice this; helps prevent inbreeding |
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Term
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Definition
| Self mating- as in some plants |
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Term
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Definition
| Ability to produce successful offspring; lifetime reproductive success of individual relative to other members of population |
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Term
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Definition
| Loss of fitness caused by inbreeding |
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Term
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Definition
| Generally different subpopulations; each restricted and adapted to specific habitats; abrupt or rapid transition of the genotype or phenotype |
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Definition
| Mating among close relatives |
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Term
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Definition
| Gradual variation in genotype or phenotype of a population across the landscape |
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| Small populations are likely to lose genetic variation more rapidly than large populations because... |
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Definition
| Factors such as: Genetic Drift, Founder Effects, and Population Bottlenecks |
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Term
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Definition
| Changes in allele frequencies b/c of random changes in births and deaths; especially likely for small populations |
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Term
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Definition
| Colonization of a new locality by a small population having less genetic variation than the parent population. Results in inbreeding b/c of small population |
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Term
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Definition
| Reduction of a parent population to an extremely small subset who possess less genetic variation than parent population |
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