WLDM Test 2 Section 3
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WLDM Test 2 Section 3
a close relationship between two or more unrelated organisms:
symbiosis (symbiotic relationship)
when two organisms benefit from each other:
when each species can only live in the presence of the other:
when each species benefits from the presence of the other, but can still survive without the other:
when one species lives in close association with another, and benefits; while the other does not gain benefit but is not harmed:
when one species spends a significant portion of its life cycle in close association with another organism (host) and the host is negatively affected:
when a female lays an egg into the nest of another individual:
avian brood parasitism
the resource and conditions present in an area that produce occupancy:
the way an animal uses the physical and biological resources in a habitat:
a series of innate and learned behavioral decisions made by an animal about what habitat it would use:
What can affect habitat selection:
angle of sun
species of vegetation
height, spacing, and density of vegetation
availability of lookouts
a consequence of habitat selection, resulting in the disproportional use of some resources over others:
accessibility and attainability of physical and biological components of a habitat by animals:
the ability of the environment to provide conditions appropriate for individual and population persistence:
the unique combinations of vegetation existing in a specific area:
What determines plant communities?
critters supported by the various combinations of plant communities:
area where two communities or successional stages overlap, creating a distinct community:
the mixing of communities or successional stages:
the progressive replacement of one dominant species or community by another in an ecosystem until a stable climax community is established:
the entire sequence of ecological communities successively occupying an area from the initial stage to the climax community
What are the seral stages?
What is a first order selection?
physical or geographical range of a species
What is a second order selection?
home range of an individual or social group within that geographical range
What is a third order selection?
related to species of how the components of the habitat within the home range are used
(foraging, bedding, breeding, parturition)
What grasslands grow where?
shortgrass prairies grow to the west
mixed prairie grow in the middle
tallgrass prairies grow to the east