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(詳細はpopulation ecology of an organism is a consequence of its behavioral ecology and intimately tied to its community ecology. Methods from molecular ecology might inform the study of the population, and all kinds of data are modeled and analyzed using quantitative ecology techniques. When discussing the study of a single species, a distinction is usually made between its ''biology'' and its ''ecology''. For example, "polar bear biology" might include the study of the polar bear's physiology, morphology, pathology and ontogeny, whereas "polar bear ecology" would include a study of its prey species, its population and metapopulation status, distribution, dependence on environmental conditions, etc. In that sense, there can be as many subdisciplines of ecology as there are species to study. ==Other criteria== Ecology can also be classified on the basis of: * the primary kinds of organism under study, e.g. animal ecology, plant ecology, insect ecology; * the biomes principally studied, e.g. forest ecology, grassland ecology, desert ecology, benthic ecology, marine ecology, urban ecology; * the geographic or climatic area, e.g. arctic ecology, tropical ecology * the spatial scale under consideration, e.g. macroecology, landscape ecology; * the philosophical approach, e.g. systems ecology which adopts a holistic approach; * the methods used, e.g. molecular ecology. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ecology (disciplines)」の詳細全文を読む スポンサード リンク
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