Ecological dictionary 1 A abiotic : nonliving components of an ecosystem, such as water, air, light, and nutrients abyssal: relating to bottom waters of oceans acid rain: anthropogenic emissions of hydrogen sulfide and nitrogen oxides from fossil fuel combustion that interact with water vapor to produce dilute sulfuric and nitric acids. causing widespread acidification of cloud and rainwater aerobic : refers to life in the presence of free oxygen, either as a gas in the atmosphere or dis-solved in water aestivation : dormancy in animals during periods of drought age distribution: ratio of each age group (prereproductive, reproductive, and postreproduc-nye) in a population aggregate dispersion : distribution of individuals in a clumped or aggregate pattern of disper-sion (such as herds, coveys, or schools) ...
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