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Bio AP Reece Campbell 6th Edition

Organismal Ecology

The branch of ecology concerned with the morphological, physiological, and behavioral ways in which individual organisms meet the challenges posed by their biotic and abiotic environments

Population Ecology

The study of how members of a population interact with their environment, focusing on factors that influence population density and growth

Community Ecology

The study of how interactions between species affect community structure and organization

Ecosystem Ecology

The study of energy flow and the cycling of chemicals among the various biotic and abiotic factors in an ecosystem

Landscape Ecology

The application of ecological principles to the study of land-use patterns; the scientific study of the biodiversity of interacting ecosystems


All the organisms that inhabit a particular area; an assemblage of populations of different species living close ennough together for potential interaction


A group of individuals of one species that live in a particular geographic area


Several different primarily terrestrial ecosystems linked by exchanges of energy, materials, and organisms


All the organisms in a given area as well as the abiotic factors with which they interact; a community and its physcial environment


The distribution of individuals within geographic population boundaries

Ecological Time

Shorter than evolutionary time (Minutes, Months, Years)

Evolutionary Time

Longer than ecological time (Decades, Centuries, Millenia, and longer)

Pelagic Zone

Open water/Open ocean not near the coast

Benthic Zone

The lower region of a body of water including the bottom

Aphotic Zone

The deep part of the ocean that is not exposed to sunlight

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