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Ecology (from Ancient Greek οἶκος (oîkos) ' house ' and -λογία ' study of ') is the natural science of the relationships among living organisms and their environment. Ecology considers organisms at the individual, population , community , ecosystem , and biosphere levels.
Ecology, the branch of ethology that deals with the relations of organisms to one another and to their physical surroundings Environment (systems) , the surroundings of a physical system that may interact with the system by exchanging mass, energy, or other properties.
A bear with a salmon. Interspecific interactions such as predation are a key aspect of community ecology.. In ecology, a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biocoenosis, biotic community, biological community, ecological community, or life assemblage.
Ecosystem ecology is the "study of the interactions between organisms and their environment as an integrated system". [2]: 458 The size of ecosystems can range up to ten orders of magnitude, from the surface layers of rocks to the surface of the planet. [4]: 6
Ecosystem ecology is the integrated study of living and non-living components of ecosystems and their interactions within an ecosystem framework. This science examines how ecosystems work and relates this to their components such as chemicals , bedrock , soil , plants , and animals .
Part of the built environment – suburban tract housing in Colorado Springs, Colorado. Human ecology is an interdisciplinary and transdisciplinary study of the relationship between humans and their natural, social, and built environments.
Environmental science is an interdisciplinary academic field that integrates physics, biology, meteorology, mathematics and geography (including ecology, chemistry, plant science, zoology, mineralogy, oceanography, limnology, soil science, geology and physical geography, and atmospheric science) to the study of the environment, and the solution of environmental problems.
Eugene Odum, one of the founders of the science of ecology, stated: "Any unit that includes all of the organisms (i.e.: the "community") in a given area interacting with the physical environment so that a flow of energy leads to clearly defined trophic structure, biotic diversity, and material cycles (i.e.: exchange of materials between living ...