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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.
The classification system has four levels, but only Levels I and III are on this list. Level I divides North America into 15 broad ecoregions; of these, 12 lie partly or wholly within the United States. Fifty Level II regions were created to allow for a narrower delineation of Level I areas. Three level I areas were not subdivided for level 2. [2]
Ecological classification or ecological typology is the classification of land or water into geographical units that represent variation in one or more ecological features. . Traditional approaches focus on geology, topography, biogeography, soils, vegetation, climate conditions, living species, habitats, water resources, and sometimes also anthropic factors.
Agronomy - Aquatic ecology - Atmosphere - Behavioral ecology - Biodegradable materials - Biodiversity - Biogeography - Biomes - British National Vegetation Classification - Ecological experiments - Ecologists - Ecology journals - Ecoregions - Ecozones - Extinction - Insect ecology - Invasive species - Natural history - Nitrogen metabolism ...
Middletown Town Hall. Middletown is located in southern Frederick County at (39.027989, −78.279273 It is in the Shenandoah Valley region and is 5 miles (8 km) southwest of Stephens City, 13 miles (21 km) southwest of Winchester, 5 miles (8 km) northeast of Strasburg, and 80 miles (129 km) west of Washington D.C.
[1] [26] In ecotypes, it is common for continuous, gradual geographic variation to impose analogous phenotypic and genetic variation, a situation which leads to the emergence of clines . [ 1 ] A well-known example of a cline is the skin color gradation in indigenous human populations worldwide, which is related to latitude and amounts of sunlight.
In scientific ecology, climax community or climatic climax community is a historic term for a community of plants, animals, and fungi which, through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state. This equilibrium was thought to occur because the climax community is ...
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