5 Written Questions
5 Matching Questions
- competitive exclusion
- symbiotic relationships
- a A mathematical measure of how the total number of individuals in an area are divided among the number of species in an area. In even communities, most species have about the same number of individuals present, where in uneven communities almost all individuals present belong to one species.
- b A symbiotic relationship in which both participants benefit
- c The concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently and have a reproductive advantage that will eventually lead to the elimination of the other population
- d A defense where one species is selected to look like another species which has an effective defense.
- e An ecological relationship between organisms of two different species that live together in direct contact
5 Multiple Choice Questions
- A symbiotic relationship in which the symbiont (parasite) benefits at the expense of the host by living either within the host (as an endoparasite) or outside the host (as an ectoparasite)
- Transition in the species composition of a biological community, often following ecological disturbance of the community; the establishment of a biological community in an area virtually barren of life
- A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact
- A symbiotic relationship in which the symbiont benefits but the host is neither helped nor harmed
- Predicts the relationship between species richess of a patch and that patch's area and distance to other patches
5 True/False Questions
pathogens → The simple count of number of species in an area.
herbivory → A defense where one species is selected to look like another species which has an effective defense.
richness → The "job" a species plays in a community, e.g. small seed consumer, top predator.
resource partitioning → The division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species
niche → The simple count of number of species in an area.