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30 Cards in this Set
- Front
- Back
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Ecology
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Study of interactions between organisms and their enviroment
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Abiotic components
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nonliving chemicaland physical factors such as temperature, light, water, and nutrients
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Biotic Components
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all living organisms in the individual's enviroment
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Organismal ecology
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concerned with the behavioral, physiological, and morphological ways individuals interact with the enviroment
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Population
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Group of individual species living in a particular geographical area
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Population Ecology
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examines factors that affect population size and composition
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Community
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All the organisms ofall the species that inhabit a particular area
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Community ecology
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Looks at the interactions between species and considers how factors such as predation, sompetition,disease, and disturbance affect community structure and organization
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Ecosystem
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all abiotic factors in addition to the entire community of species that exist in a certain area
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Ecosystem Ecology
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Studies energy flow and cycling of chemicals among the various abiotic and biotic components
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Landscape/Seascape
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Several different ecosystems linked by exchanges ofenergy,materials, and organisms
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Landscape Ecology
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Deals with arrays of ecosystemsand their arrangement in a geographic region
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biosphere
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global ecosystem, sum of all the planets ecosystems
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Precautionary Principle
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"an ounce of prevention is worth a pound of cure" can guide decisions making on enviromental issues
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dispersal
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Movement of individuals away from centers of high population density or from their area of origin
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Climate
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Prevailing weather conditions in an area
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Macroclimate patterns
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climate patterns on a global,regional, or local level
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Microclimate patterns
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fine patterns such as the conditions experienced by a community of an organisms under a fallen log
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biomes
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major types of ecosystems
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Turnover
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When oxygenated water is brought to the bottom and nutrient-rich water to the surface
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Photic Zone
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upper zone where there is sufficient light for photosynthesis
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Aphotic zone
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very little light penetrates here
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Benthic zone
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substrate at bottom of aquatic biome
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Benthos
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communities that occupy the zone made up of sand and sediments
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detritus
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dead organic matter
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thermocline
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narrow stratum of rapid temperature change seperates the more unifromly warm upper layer from the more uniformly cold deeper waters
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Oligotrophic
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deep lakes nutrient poor oxygen rich and contain little life
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Eutrophic
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Lakes that are shallow, nutrient rich, and oxygen poor
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littoral zone
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shallow well lit water close to shore
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limnetic zone
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open surface water
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