- intrinsic rate of increase
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the change in the amount of harvestable stock estimated by recruitment increases plus growth minus natural mortality
Dictionary of ichthyology. 2009.
Dictionary of ichthyology. 2009.
Intrinsic rate of increase (r) calculated for populations of species that differ greatly in their potential for the rate of population growth — ▪ Table Intrinsic rate of increase (r)* calculated for populations of species that differ greatly in their potential for the rate of population growth species intrinsic rate of increase (r) elephant seal 0.091 ring necked pheasant 1.02 field vole … Universalium
intrinsic — adj. [L. intrinsecus, inward] 1. Inherent or within. 2. Cycles of species in a population. 3. Rate of natural increase in a stabilized population; see extrinsic … Dictionary of invertebrate zoology
growth rate — 1) the increase in weight of a fish per year (or season), divided by the initial weight; often measured in terms of K in the von Bertalanffy curve for the mean weight as a function of age (W Wmax (1 exp ( K age)). Fish grow continuously, although … Dictionary of ichthyology
population ecology — Introduction study of the processes that affect the distribution and abundance of animal and plant populations. A population is a subset of individuals of one species that occupies a particular geographic area and, in sexually… … Universalium
Population dynamics — is the branch of life sciences that studies short term and long term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way… … Wikipedia
Natality in Population Ecology — is the scientific term for birth rate. Along with mortality rate, natality rate is used to calculate the dynamics of a population. They are the key factors in determining whether a population is increasing, decreasing or staying the same in size … Wikipedia
Mutualism (biology) — Hummingbird Hawkmoth drinking from Dianthus. Pollination is a classic example of mutualism. Mutualism is the way two organisms of different species biologically interact in a relationship in which each individual derives a fitness benefit (i.e.,… … Wikipedia
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Fertilizer — Tennessee Valley Authority: Results of Fertilizer demonstration 1942 … Wikipedia
Aphid — This article is about the insect. For other uses, see Aphid (disambiguation). Aphids Temporal range: Permian–Present … Wikipedia