Ecology and Biosphere
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21 terms
Terms | Definitions |
|---|---|
 Ecology | scientific study of the interactions between organisms and the environment |
| Organismal Ecology | studies how an organsim's structure,physiology, and behavior meet environmental challenges |
| Population | group of individuals of the same species living in an area |
| Population Ecology | focuses on factors affecting how many individuals of a species live in an area |
| Community | group of populations of different species in an area |
| Community Ecology | array of interacting species in a community |
| Ecosystem | community of organisms in an area and the physical factors with which they interact |
| Ecosystem Ecology | emphasizes energy flow and chemical cycling among the various biotic and abiotic components |
| Landscape | mosaic of connected ecosystems |
| Landscape Ecology | arrays of ecosystems and how they are arranged in a geographic region |
| Biosphere | global ecosystem, the sum of all the planet's ecosystems |
| Global Ecology | examines the influence of energy and materials on orangisms across the biosphere |
| Order of Complexity(most complex to least complex) | biosphere; biome; ecosytem; community; population; and species |
| Ethology | scientific study of how animals behave in their natural environment |
| Two factors that determines distribution | biotic(living factors) and abiotic(nonliving factors) |
| Dispersal | movement of individuals away from centers of high population density or from their area of region; contributes to global distribution of organsims |
| Factor responsible for dramatic latitudinal variations in climate | evaporation of water caused by the sun's warming effect on the earth |
| Biotic factors that affect the distribution of organisms | interactions with other species, predation, competition |
| Abiotic factors affecting distribution of organisms | temperature, water, sunlight, wind rocks ans soil |
| Main nutrient lost as a result of agriculture | nitrogen |
| Behavior Ecology | study of how natural selection shapes behavior; threatening and submissive behavior is a characteristic of Agonistic Behavior |
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