Science / ECOLOGY Ch8-11

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Can you name the Ecology Terms?

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a pattern of distribution in a population in which individuals have a much higher probability of being found in some areas than in others
a pattern of growth that produces a sigmoidal, or s-shaped, population growth curve
the variable traditionally plotted on the horizontal, or 'x' axis of a scatter plot
a branch of biology concerned with the study of social relations
sexual selection in which individuals of one sex compete among themselves for mates
a portion of a larger population, with which it sustains a connection through immigration and emigration
the conditions under which helping kin should be favored by natural selection
number of offspring contributed by an individual relative to the number of offspring produced by other members of the population.
the environmental factors that influence the growth, survival, and reproduction of a species
highly specialized sociality generally including individuals of more than one generation living together, cooperative care of young, and division of individuals into sterile, or no
change in density of a predator population in response to increased prey density
sex that produces smaller, less costly gametes (sperm or pollen)
distribution of individuals among age groups in a population; often called age structure
overall fitness, which is determined by the survival and reproduction of an individual, plus the survival and reproduction of genetic relatives of the individual
a population in which the the proportion of individuals in each age class is constant
symbolized as r, equals per capita birthrate minus per capita death rate
the physical conditions under which a species might live, in the absence of interactions with other species
a distribution in which individuals within a population have an equal chance of living anywhere within an area
sex that produces larger, more energetically costly gametes (eggs or ova)
biotic factors in the environment, such as disease and competition
a graphical summary of patterns of survival in a population
a table of age-specific survival and death, or mortality, rates in a population
an area of population ecology concerned with the factors influencing the expansion, decline, or maintenance of populations, including rates of births, deaths, immigration, and emig
results from differences in reproductive rates among individuals as a result of differences in mating success due to intrasexual selection, intersexual selection, or a mixture of t
a group of spatially separated subpopulations connected by active exchange of individuals among subpopulations
a statistic used to measure how much a sample distribution differs from a theoretical distribution
selection in which individuals increase their inclusive fitness by helping increase the survival and reproduction of relatives that are not offspring
line that best fits the relationship between 2 variables, x and y
an s-shaped pattern of population growth, with population size leveling off at the carrying capacity of the environment
k; the maximum population of a species that a particular ecosystem can sustain
increase in animal feeding rate, which eventually levels off, that occurs in response to an increase in food availability
active or passive downstream movement of stream organisms
a group of individuals of the same age
group living generally involving some degree of cooperation between individuals
sexual selection occuring when members of one sex choose mates from among the members of the opposite sex on the basis of some anatomical or behavioral trait, generally leading to
abiotic factors in the environment, such as floods and extreme temperature
Study of the relationships between organisms and environment that are mediated by behavior
the total number of individuals, or biomass, of a species present in a specified area
phenomena of a geographic scale rather than a local scale
the number of individuals in a population per unit area
variable traditionally plotted on the vertical or 'y' axis of a scatter plot
population growth that produces a j-shaped pattern of population increase
a distribution of individuals in a population in which individuals are uniformly spaced
increasing the complexity of the environment of captive animals to foster behaviors characteristic of the species in the wild
phenomena that takes place on a local scale
chemical substance secreted by some animals for communication with other members of their species
a group of individuals that are physically distinctive and engage in specialized behavior within a social unit, such as a colony
population growth in which generations do not overlap and in which successive generations differ in a size by a constant ratio
the geographic range of an organism or the spatial arrangement of individuals in a local population
lambda; ratio of the population size at 2 points in time
maximum per capita rate of population increase; may be approached under ideal environmental conditions for a species.
the actual niche of a species whose distribution is restricted by biotic interactions such as competition, predation, disease, and parasitism
a group of individuals of a single species inhabiting a specific area

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