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Organizational ecology can be usefully compared with evolutionary theories in economics (e.g. Nelson & Winter, 1982). [1] Hannan and Freeman also note the influences of biological ecology and economic evolution on their population ecology model (specifically Elton, 1927; Durkheim, 1947; Hawley, 1950; and Hutchison, 1959). [2]
The Purnell Model for Cultural Competence is a broadly utilized model for teaching and studying intercultural competence, especially within the nursing profession. Employing a method of the model incorporates ideas about cultures, persons, healthcare and health professional into a distinct and extensive evaluation instrument used to establish and evaluate cultural competence in healthcare.
The development of population ecology owes much to the mathematical models known as population dynamics, which were originally formulae derived from demography at the end of the 18th and beginning of 19th century. [8] The beginning of population dynamics is widely regarded as the work of Malthus, [9] formulated as the Malthusian growth model.
Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms.. Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population.
A population ecology concept is r/K selection theory, one of the first predictive models in ecology used to explain life-history evolution. The premise behind the r/K selection model is that natural selection pressures change according to population density. For example, when an island is first colonized, density of individuals is low.
The Leslie matrix is a discrete, age-structured model of population growth that is very popular in population ecology named after Patrick H. Leslie. [1] [2] The Leslie matrix (also called the Leslie model) is one of the most well-known ways to describe the growth of populations (and their projected age distribution), in which a population is closed to migration, growing in an unlimited ...
In biomathematics, the Kolmogorov population model, also known as the Kolmogorov equations in population dynamics, is a mathematical framework developed by Soviet mathematician Andrei Kolmogorov in 1936 that generalizes predator-prey interactions and population dynamics. The model was an improvement over earlier predator-prey models, notably ...
Core principles and common themes of ecosystem management: [7] [13] Systems thinking: Management has a holistic perspective rather than focusing on a particular level of biological hierarchy in an ecosystem (e.g., only conserving a specific species or only preserving ecosystem functioning).