Ecology Exam 3

Ch. 16-22

33 cards   |   Total Attempts: 188
  

Cards In This Set

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species richness
The count of the number of spp occurring within the community
Species abundance
Represents the percentage each spp contributes to the total number of individuals of all spp
Keystone species
Has a disproportionate impact on the community relative to its abundance-the removal of a keystone spp initiates changes in the comm structure and often results in significant loss of diversity
Basal species
Feed on no other spp but are fed upon by others
Top predators
Prey on intermediate and basal spp
Foundation species
?
Succession
Gradual and (seemingly) directional change in comm structure through time from field to forest
Edge species
Those restricted exclusively to the edge enviornment
Interior species
Require conditions characteristic of interior habitats and stay away from the abrupt changes associated with border environments
Corridor
Connect patches of similar habitat
Connectivity
The extent to which a species (or pop) can move among patches within the matrix
GPP
Gross Primary Productivity-the total rate of photosynthesis, or the energy assimilated by autotrophs
NPP
Net Primary Productivity-the rate of energy storage as organic matter after respiration
Wetfall
Those nutrients supplied by precipitation
Dryfall
The nutrients brought in by airborne particles and aerosols