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47 Cards in this Set

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mesotrophic
of or pertaining to nutrition; concerned in nutritive processes.
ecology
the branch of biology dealing with the relations and interactions between organisms and their environment, including other organisms
benthos
the biogeographic region that includes the bottom of a lake, sea, or ocean, and the littoral and supralittoral zones of the shore.
canopy
a covering (usually of cloth) that serves as a roof to shelter an area from the weather
permafrost
(in arctic or subarctic regions) perennially frozen subsoil
acclimation
to accustom or become accustomed to a new climate or environment; adapt.
estaury
that part of the mouth or lower course of a river in which the river's current meets the sea's tide.
detritus
rock in small particles or other material worn or broken away from a mass, as by the action of water or glacial ice.
biome
a complex biotic community characterized by distinctive plant and animal species and maintained under the climatic conditions of the region, esp. such a community that has developed to climax.
eutrophic
characterized by an abundant accumulation of nutrients that support a dense growth of algae and other organisms, the decay of which depletes the shallow waters of oxygen in summer
Lek
a traditional place where males assemble during the mating season and engage in competitive displays that attract females
ethology
The scientific study of animal behavior, especially as it occurs in a natural environment
taxis
Biology. oriented movement of a motile organism in response to an external stimulus, as toward or away from light
kinesis
Movement or activity of an organism in response to a stimulus such as light
polygyny
the habit or system of having two or more mates, either simultaneously or successively
polyandry
the habit or system of having two or more mates, either simultaneously or successively
pheromones
A chemical secreted by an animal, especially an insect, that influences the behavior or development of others of the same species, often functioning as an attractant of the opposite sex
monogamous
the custom or condition of having only one mate
cognition
the act or process of knowing; perception
altruism
behavior by an animal that may be to its disadvantage but that benefits others of its kind, as a warning cry that reveals the location of the caller to a predator
fecundity
the quality of being fecund; capacity, esp. in female animals, of producing young in great numbers
istraspecific
existing or occurring within a species
dispersion
an act, state, or instance of dispersing or of being dispersed
cohort
a companion or associate
demography
the science of vital and social statistics, as of the births, deaths, diseases, marriages, etc., of populations
opportunistic
causing disease only under certain conditions, as when a person's immune system is impaired
biogeography
the study of the geographical distribution of living things
mimicry
the close external resemblance of an organism, the mimic, to some different organism, the model, such that the mimic benefits from the mistaken identity, as seeming to be unpalatable or harmful
predation
a relation between animals in which one organism captures and feeds on others
symbiosis
the living together of two dissimilar organisms, as in mutualism, commensalism, amensalism, or parasitism
symbiont
An organism in a symbiotic relationship
dynamic
pertaining to or characterized by energy or effective action; vigorously active or forceful
parasitism
relation between organisms in which one lives as a parasite on another
herbivory
the state or condition of feeding on plants
endoparasites
A parasite, such as a tapeworm, that lives within another organism
ectoparasite
an external parasite
commensalism
living with, on, or in another, without injury to either.
biomass
the amount of living matter in a given habitat, expressed either as the weight of organisms per unit area or as the volume of organisms per unit volume of habitat
detritivores
An organism that feeds on and breaks down dead plant or animal matter, returning essential nutrients to the ecosystem. Detritivores include microorganisms such as bacteria and protists as well as larger organisms such as fungi, insects, worms, and isopod crustaceans. In a food chain, detritivores are primary consumers. Compare carnivore
detritus
rock in small particles or other material worn or broken away from a mass, as by the action of water or glacial ice
ecosystem
system formed by the interaction of a community of organisms with their environment
ammonification
the act of impregnating with ammonia, as in the manufacture of fertilizer
bioremediation
The use of biological agents, such as bacteria or plants, to remove or neutralize contaminants, as in polluted soil or water
initiative
an introductory act or step; leading action
metapopulation
A metapopulation consists of a group of spatially separated populations of the
same species which interact at some level
biodiversity
diversity among and within plant and animal species in an environment
endemic species
Endemic types or species are especially likely to develop on islands, because of
their geographical isolation