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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.
Population, community, and physiological ecology provide many of the underlying biological mechanisms influencing ecosystems and the processes they maintain. Flowing of energy and cycling of matter at the ecosystem level are often examined in ecosystem ecology, but, as a whole, this science is defined more by subject matter than by scale.
The term population biology has been used with different meanings. In 1971, Edward O. Wilson et al. used the term in the sense of applying mathematical models to population genetics, community ecology, and population dynamics. [1] Alan Hastings used the term in 1997 as the title of his book on the mathematics used in population dynamics. [2]
In ecology, a population is a group of organisms of the same species which inhabit the same geographical area and are capable of interbreeding. [2] [3] The area of a sexual population is the area where interbreeding is possible between any opposite-sex pair within the area and more probable than cross-breeding with individuals from other areas.
In other projects Wikimedia Commons; ... Pages in category "Population ecology" ... Refuge (ecology) Refugium (population biology)
Applied ecology – sub-field within ecology that considers the application of the science of ecology to real-world (usually management) questions – the practice of employing ecological principles and understanding to solve real world problems (includes agroecology and conservation biology); Conservation ecology – Study of threats to ...
[23] Hybridization among populations may increase population gene flow and reduce the effects of natural selection. [ 24 ] [ 25 ] Hybridization here is defined as when different but adjacent varieties of the same species (or generally of the same taxonomic rank ) interbreed, which helps overcome local selection. [ 1 ]
Population ecology is a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment. [15] It is the study of how the population sizes of species living together in groups change over time and space, and was one of the first aspects of ecology to be studied and modelled mathematically.