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Definitions for various terms related to ecology, including abiotic and biotic factors, habitats, organismal ecology, population ecology, community ecology, ecosystem ecology, and more. It covers concepts such as competition, symbiosis, herbivory, and parasitism.
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the study of organisms and their interaction with the environment TERM 2
DEFINITION 2 physical environment, environment's nonliving component, chemical:temp, light, water, and air TERM 3
DEFINITION 3 all organisms in the area, the living component of the environment (interactions with other species-e.g., predation, competition) TERM 4
DEFINITION 4 specific environment an organism lives in, includes biotic and abiotic factors of its surroundings TERM 5
DEFINITION 5 an organism's structure, physiology, and (for animals) behavior meet the challenges posed by the environment
the study of biological factors that affect the sizes of populations. including environmental influences on population density and distribution, age structure, and variations in population size TERM 7
DEFINITION 7 the study of an assemblage of populations of various species living close enough for potential interaction TERM 8
DEFINITION 8 all the abiotic factors in addition to the community of species in a certain area, focuses on energy flow and the cycling of chemicals among the various abiotic and biotic factors TERM 9
DEFINITION 9
DEFINITION 10 account for the largest part of the biosphere in terms of area
environmental and social factors influence the spacing of individuals in a population TERM 17
DEFINITION 17 individuals aggregate in patches. may be influenced by resource availability and behavior TERM 18
DEFINITION 18 individuals are evenly distributed. may be influenced by social interactions such as territoriality TERM 19
DEFINITION 19 the position of each individual is independent of other individuals TERM 20
DEFINITION 20 an estimate of the amount of land required to provide the raw materials an individual or a population consumes, including: food, fuel, water, housing, waste disposal. is 9. hectares per person in the US
the study of the vital statistics of a population and how they change over time. death and birth rates are particular interests TERM 22
DEFINITION 22 occurs when species compete for a particular resource that is in short supply TERM 23
DEFINITION 23 the local elimination of one of the two competing species TERM 24
DEFINITION 24 the sum of an organism's abiotic and biotic resources in its environment TERM 25
DEFINITION 25 states that two species competing for the same limiting resources cannot coexist in the same place
in some cases one prey species may gain significant protection by imitating the appearance of another TERM 32
DEFINITION 32 the consumption of plant parts or algae by an animal. has led to the evolution of plant mechanical and chemical defenses and consequent adaptions by herbivores TERM 33
DEFINITION 33 one organism derives its nourishment form another which is harmed in the process. exerts substantial influence on populations and the structure of communities. pathogens, disease-causing agents are typically bacteria, viruses, or protists TERM 34
DEFINITION 34 one species benefits and the other is not affected