Population ecology is a major sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment. Ecology (from Greek grc οἶκος oikos, "house(hold" and grc -λογία -logia) is the scientific study of In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. In Biology a population is the collection of inter-breeding organisms of a particular Species; in Sociology See also Nature The natural environment, commonly referred to simply as the environment, is a terminology that is comprised of all living and ^[1]

The older term, autecology (from Greek: αὐτο, auto, "self"; οίκος, oikos, "household"; and λόγος, logos, "knowledge") refers to the roughly same field of study, coming from the division of ecology into autecology—the study of individual species in relation to the environment—and synecology—the study of groups of organisms in relation to the environment—or community ecology. Community ecology is a subdiscipline of Ecology which studies the distribution abundance Demography, and interactions between coexisting Populations Odum (1959, p. 8) considered that synecology should be divided into population ecology, community ecology, and ecosystem ecology, defining autecology as essentially "species ecology. "^[1] However, biologists have for some time recognized that the more significant level of organization of a species is a population, because at this level the species gene pool is most coherent. In fact, Odum regarded "autecology" as no longer a "present tendency" in ecology (i. e. , an archaic term), although included "species ecology"—studies emphasizing life history and behavior as adaptations to the environment of individual organisms or species—as one of four sub-divisions of ecology. The term life history has been given many meanings in several scientific fields

The development of the field of population ecology owes much to the science of demography and the use of actuarial life tables. Demography is the statistical study of all Populations. It can be a very general science that can be applied to any kind of dynamic population that is one that changes over An actuary is a business professional who deals with the financial impact of risk and uncertainty In Actuarial science, a life table (also called a mortality table or actuarial table) is a table which shows for a person at each age what the probability Population ecology has also played an important role in the development of the field of conservation biology especially in the development of population viability analysis (PVA) which makes it possible to predict the long-term probability of a species persisting in a given habitat patch (e. "Conservation Biology" redirects here For the Scientific journal, see Conservation Biology (journal. Population viability analysis (PVA is a Species -specific method of Risk assessment frequently used in Conservation biology. g. , a national park).

While essentially a subfield of biology, population ecology provides many interesting problems for mathematicians and statisticians, which work mainly in the study of population dynamics. Foundations of modern biology There are five unifying principles Mathematics is the body of Knowledge and Academic discipline that studies such concepts as Quantity, Structure, Space and Statistics is a mathematical science pertaining to the collection analysis interpretation or explanation and presentation of Data. Population dynamics is the study of marginal and long-term changes in the numbers individual weights and age composition of individuals in one or several Populations and

Contents 1 Scientific literature 2 See also 3 Bibliography 4 References

Scientific literature

Scientific literature on population ecology can be found in The Journal of Animal Ecology, Oikos and others. This article is about ancient Greek households For the ecology journal see Oikos (journal.

See also

• Density-dependent inhibition
• Genetic variation
• Irruptive growth
• Life table
• Malthusian growth model
• Metapopulation
• Population density
• Population distribution
• Population dynamics and population growth
• Population genetics
• Population size
• Important publications in autecology
• Reproduction

Bibliography

• Kareiva, Peter (1989). In Population ecology, density-dependent inhibition describes a situation in which Population growth is curtailed by crowding Genetic diversity is a level of Biodiversity that refers to the total number of genetic characteristics in the genetic makeup of a species Irruptive growth, sometimes called Malthusian growth, is a growth pattern defined by population explosions and subsequent sharp population crashes or diebacks In Actuarial science, a life table (also called a mortality table or actuarial table) is a table which shows for a person at each age what the probability The Malthusian growth model, sometimes called the simple exponential growth model is essentially Exponential growth based on a constant rate of Compound interest A metapopulation consists of a group of spatially separated populations of the same Species which interact at some level Population density (in agriculture standing stock and Standing crop) is a measurement of Population per unit area or unit volume Population distribution redirects here For the probability distribution of a statistical population see Probability distribution and Statistical population Population dynamics is the study of marginal and long-term changes in the numbers individual weights and age composition of individuals in one or several Populations and Population growth is the change in Population over time and can be quantified as the change in the number of individuals in a population using "per unit time" for Population genetics is the study of the Allele frequency distribution and change under the influence of the four evolutionary forces Natural selection, Genetic In Population genetics and Population ecology, population size (usually denoted N) is the number of individual Organisms in a Population Anatomy Commentary on Anatomy in Avicenna's Canon Reproduction is the Biological process by which new individual Organisms are produced "Renewing the Dialogue between Theory and Experiments in Population Ecology", in Roughgarden J. , R. M. May and S. A. Levin: Perspectives in ecological theory (in English). New Jersey: Princeton University Press, 394 p.  
• Odum, Eugene P. (1959). Eugene Pleasants Odum ( September 17, 1913 - August 10, 2002) was an American Scientist known for his pioneering work Fundamentals of Ecology, Second edition, Philadelphia and London: W. B. Saunders Co. , 546 p. ISBN 0721669417/9780721669410. OCLC 554879. The OCLC Online Computer Library Center is according to its website a "nonprofit membership computer library service and research organization dedicated to the public purpose  
• Smith, Frederick E. (1952). "Experimental methods in population dynamics: a critique". Ecology 33: 441-450. doi:10.2307/1931519. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.  

References

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