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Wolf Case Study
biology wolf thingy
28
Biology
9th Grade
04/24/2014

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Term
interspecific
Definition
existing or occurring between different species
Term
intraspecific
Definition
produced, occurring, or existing within species or between individuals of a single species
Term
10% rule
Definition
only 10% of energy is transferred to the next level of the food chain
Term
biomass
Definition
the total mass of organisms in a given area or volume
Term
trophic levels
Definition
each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy
Term
producer
Definition
A producer in ecology is an autotrophic organism typically a photosynthetic green plant that synthesizes organic matter from inorganic materials. This organism is usually in the early stage of a food chain.
Term
primary consumer
Definition
An animal that eats grass and other green plants in a food chain; an herbivore.
Term
secondary consumer
Definition
consumers that feed on the primary consumers. For example, in the food chain, a carnivore feeding on a plant eating animal is called a secondary consumer.
Term
tertiary consumer
Definition
a carnivore at the topmost level in a food chain that feeds on other carnivores; an animal that feeds only on secondary consumers.
Term
keystone species
Definition
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically
Term
density-dependent factors
Definition
factors that depend on how much of a population lives in a certain area
Term
density-independent factors
Definition
factors that affect the population, but are not affected by the population itself ex. weather
Term
predation
Definition
predator feeds on prey
Term
parasitism
Definition
relation between 2 different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)
Term
commensalism
Definition
association between 2 different organisms in which one benefits and the other derives neither benefit or harm
Term
mutualism
Definition
relationship between 2 species of organisms in which both benefit from the association
Term
competition
Definition
interaction between organisms or species, in which the fitness of one is lowered by the presence of the other
Term
symbiosis
Definition
the living together of 2 dissimilar organisms, as in mutualism, commensalism, parasitism, predation, or competition
Term
carrying capacity
Definition
the maximum, equilibrium number of organisms of a particular species that can be supported indefinitely in a given environment
Term
ecology
Definition
the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
Term
biotic
Definition
of or having to do with life or living organisms
Term
abiotic
Definition
nonliving
Term
population
Definition
all of the people inhabiting a specified area
Term
fecundity
Definition
The quality or power of producing abundantly; fruitfulness or fertility
Term
logistic growth
Definition
the kind of population growth where the growth rate constantly decreases with the increasing number of individuals. Eventually, when the population reaches to its maximum, the growth rate becomes zero.
Term
exponential growth
Definition
the population keeps growing and growing (limiting factors are out of the picture)...steady growth rate
Term
immigration
Definition
the movement of individuals into a specific area
Term
emigration
Definition
the movement of individuals out of an area
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