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Ecology is the study of interactions between organisms and between organisms and their environments. Population ecology is the subfield of ecology that identifies those ecological factorsin the community or in the ecosystemthat regulate a population’s size. Ecosystems and communities involve complex interactions that have evolved over long periods of time. The species that are present and the interactions we see between them are the result of evolution under the unique environmental pressures that exist in a given environment. These interactions may be delicately intertwined, such that the loss of a single species from a community could mean the collapse of the entire community in a domino effect. Thus, biologists are concerned with the preservation of biodiversity in ecosystemsretaining as many different species in the ecosystem as possible so the intricate relationships among species are preserved. In recent years, we have seen a decrease in the biodiversity of ecosystems. Human activities a… Categories:
Life Sciences
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