misc.
The distinct role that a species plays in its ecosystem
What is an ecological niche?
this species has broad niches
What is the Generalist Species?
This species occupies a narrow nice
what is a specialist species?
What is a Native Species?
This species migrates into, or accidentally introduced into an ecosystem.
What is a nonnative Species?
This species provides an early warning of damage to an ecosystem
What is an indicator species?
This species has a large affect of the types and abundance of other species in an ecosystem
What is a Keystone Species?
When species competing for similar scarce resources evolve specialized traits that allow them to use shared resources at different times, in different ways, or in different places.
What is recourse partitioning?
This is when a member of one species feeds directly on all or part of an organism of another plant or animal species as part of a food web.
What is Predation?
This is the relationship between a predatory animal and its prey in the food web.
What is a predator-prey relationship?
when one species feeds on another organism usually by living on or in the host
What is parasitism?
When two species behave in ways that benefit both by providing each with food, shelter, or some other recourse.
What is mutualism?
an interaction that benefits one species but has little, if any, effect on the other.
what is Commensalism?
the normally gradual change in species composition in a given area
What is ecological succession?
involves the gradual establishment of biotic communities in lifeless areas where there is no soil in a terrestrial ecosystem or no bottom sediment in an aquatic ecosystem.
What is Primary ecological succession
A series of communities or ecosystems with different species develop in places containing soil or bottom sediment
What is secondary ecological succession?
capacity for population growth under ideal conditions
What is biotic potential?
ther rate at which the population of a species would grow if it had unlimited resources
What is intrinsic rate of increase?
physical or chemical environmental factors can half to determine the number of organisms in a population
What are limiting factors?
the combination of limiting factors that act to limit the growth of a population
What is environmental resistance?
the maximum population of a given species that a particular ecosystem can sustain indefinitely
What is carrying capacity?
subtracting the number of people leaving a population by the number entering it
What is population change?
also known as a die back. A population suffers this
What is population crash?
the number of children born to a woman during her lifetime
What is fertility rate?
the number of live births per 1,000 people in a population in a given year
What is crude birth rate?