Term
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Definition
| the study of populations in relation to their environment |
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Term
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Definition
| a group of individuals of a single species living in the same general area |
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Term
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Definition
| the number of individuals per unit area or volume |
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Term
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Definition
| the pattern of spacing among individuals within the boundaries of the population |
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Term
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Definition
| a process used to estimate the size of wildlife populations |
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Term
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Definition
| the influx of new individuals from other areas into a population |
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Term
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Definition
| the movement of individuals out of a population |
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Term
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Definition
| the defense of a bounded physical space against encroachment by other individuals |
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Term
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Definition
| the study of the vital statistics of populations and how they change over time |
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Term
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Definition
| age-specific summaries of the survival pattern on a population |
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Term
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Definition
| a group of individuals of the same age |
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Term
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Definition
| a plot of the proportion or numbers in a cohort still alive at each age |
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Term
| reproductive table (fertility schedule) |
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Definition
| an age specific summary of the reproductive rates in a population |
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Term
| big-bang reproduction (semelparity) |
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Definition
| when an organism is extremely fertile and conceives many offspring at one time before dying or becoming infertile |
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Term
| repeated reproduction (iteroparity) |
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Definition
| annual reproduction of a moderate number of offspring |
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Term
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Definition
| occurs when the per capita birth and death rates are equal |
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Term
| exponential population growth |
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Definition
| population increase under ideal conditions (members of a population have access to abundant food and are free to reproduce at their physiological capacity |
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Term
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Definition
| the maximum population size that a particular environment can sustain |
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Term
| logistical population growth |
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Definition
| the per capita rate of increase approaches zero as the carrying capacity is reached |
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Term
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Definition
| selection for life history traits that are sensitive to population density |
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Term
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Definition
| selection for life history traits that maximize reproductive success in uncrowded environments |
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Term
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Definition
| a birth or death rate that does not change with population density |
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Term
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Definition
| a death rate that rises as density rises, or birth rate that falls as density rises |
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Term
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Definition
| the complex interactions between biotic factors that cause variations in the size of populations |
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Term
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Definition
| various linked populations by immigration and emigration |
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Term
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Definition
| the movement from a high birth rate and high death rate to low birth rate and low death rate |
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Term
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Definition
| the relative number of individuals of each age in a population |
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Term
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Definition
| summarizes the aggregate land and water area required by each person, city, or nation to produce all the resources it consumes and to absorb the waste it generates |
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Term
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Definition
| the traits that affect an organism's schedule of reproduction and survival (birth rate) |
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