Terms : Hide Images
| 9555356006 | Random Dispersion | the position of each individual in a population is independent of other individuals |  | 0 |
| 9555356007 | Population | a group of individuals of a single species living in the same general area -described by their boundaries and size; likely to rely on same resources, influenced by similar environmental factors, a breed/interact w/ one another | 1 | |
| 9555356008 | Density | the number of individuals per unit area volume -the result of an interplay between processes that add individuals to a population and those that remove individuals | 2 | |
| 9555356009 | Dispersion | the pattern of spacing among individuals within the boundaries of the population | 3 | |
| 9555356010 | Immigration | the influx of new individuals from other areas |  | 4 |
| 9555356011 | Emigration | the movement of individuals out of a population |  | 5 |
| 9555356012 | Uniform dispersion | individuals are evenly distributed |  | 6 |
| 9555356013 | Clumped dispersion | individuals are aggregated in patches - plants and fungi are often clumped where soil conditions and other environmental factors favor germination and growth. |  | 7 |
| 9555356014 | Territoriality | the defense of a bounded space against other individuals -competition for territory may limit density | 8 | |
| 9555356015 | Random dispersion | the position of each individual is independent of other individuals | | 9 |
| 9555356016 | Demography | the study of the vital statistics of population and how they change over time -death rates, birth rates, migration rates, survivorship rates, reproductive rates | 10 | |
| 9555356017 | Life table | an age-specific summary of the survival pattern of a population |  | 11 |
| 9555356018 | Cohort | group of individuals of the same age | 12 | |
| 9555356019 | Survivorship curve | a graphic way of representing the data in a life table |  | 13 |
| 9555356020 | Type I | low death rates during early and middle life and an increase in death rates among older groups |  | 14 |
| 9555356021 | Type II | a constant death rate over the organism's life span |  | 15 |
| 9555356022 | Type III | high death rates for the young and a lower death rate for survivors |  | 16 |
| 9555356023 | Reproductive rate | measured as the average number of female offspring produced by females in a given age-group | 17 | |
| 9555356024 | Reproductive table | fertility schedule age-specific summary of the reproductive rates in a population | 18 | |
| 9555356025 | Zero population growth (ZPG) | when the birth rate = the death rate | 19 | |
| 9555356026 | exponential population growth | population increase idealized conditions under these conditions, the rate of increase is at its maximum, denoted as rmax equation of exponential population growth --- dN/dt = rinstN | 20 | |
| 9555356027 | Carrying capacity (K) | the maximum population size the environment can support | 21 | |
| 9555356028 | Logistic population growth | the per capita rate of increase declines as carrying capacity is reached dN/dt = rinstN((K-N)/K) |  | 22 |
| 9555356030 | Life history | comprises the traits that affected its schedule of reproduction and survivial -life history traits are evolutionary outcomes reflected in teh development, physiology, and behavior of an organism | 23 | |
| 9555356031 | Life history diversity | -the age at which reproduction begins -how often the organism reproduces -how many offspring are produced per reproductive | 24 | |
| 9555356032 | Semelparity | big bang reproduction highly variable or unpredictable environments favor ___________ | 25 | |
| 9555356033 | Iteroparity | repeated reproduction dependable environment favor __________ | 26 | |
| 9555356034 | K-selection | density-dependent selection, selects for life history traits that are sensitive to population density | 27 | |
| 9555356035 | r-selection | density-independent selection, selects for life history traits that maximize reproduction | 28 | |
| 9555356036 | Density-independent populations | birth rate and death rate do not change with population density | 29 | |
| 9555356037 | Density-dependent population | birth rates fall and death rates rise with population density | 30 | |
| 9555356038 | Competition for resources | increasing population density intensifies competition for resources and results in lower birth rate | 31 | |
| 9555356039 | Disease | population density can influence the health of survival or organisms pathogens can spread more rapidly | 32 | |
| 9555356040 | Predation | as the prey population builds up, predators may feed preferentially on that species | 33 | |
| 9555356041 | Intrinsic Factors | ____________ (physiological) factors appear to regulate population size | 34 | |
| 9555356042 | Toxic waste | accumulation of toxic wastes can contribute to density-dependent regulation of population size | 35 | |
| 9555356043 | Population dynamics | focuses on the complex interactions between biotic and abiotic factors that cause variations in population size | 36 | |
| 9555356044 | Metapopulations | groups of populations linked by immigration and emigration -local populations in a metapopulation occupy patches of suitable habitat surrrounded by unsuitable habitat -local populations lost through exctinctions can be recolonized by immigration from other patches | 37 | |
| 9555356045 | Demographic transition | the move from the first state to the second state | 38 | |
| 9555356046 | Age structure | the relative number of individuals at each age | 39 | |
| 9555356047 | population ecology | the study of populations in relation to their environment; explores how biotic and abiotic facts influences the abundance, dispersion, and age structure of populations | 40 | |
| 9555356048 | Mark-recapture method | The number of marked animals captured in the second sampling (x) divided by the total num- ber of animals captured in the second sampling (n) should equal the number of individuals marked and released in the first sampling (s) divided by the estimated population size (N): (x/n)=(s/N); N=(sn)/x | 41 |
