Biodiversity and Conservation Flashcards
Intermediate disturbance hypothesis
the highest species richness will occur at an intermediate level of intensity or frequency of natural disturbance because disturbance creates many habitats but does not drive many species extinct
pioneer species
the species that first colonize new habitats created by disturbance- grow fast, short lived
Intermediate species
grow moderately fast, moderate lifespan, dispersal
Climax species
slow dispersal, long lived, tall/large
Succession
process by which the community of species and habitat in an area changes over time
Biodiversity
the variety and variability of life on earth
Species richness
the number of different species in a given area
Species evenness
the relative proportion of different species in a habitat
Exotic species
not native to a region but were introduced relatively recently by humans
Invasive species
introduced species that outcompete native species for space and other resources
coevolution
adaptations that result from interactions between species over time
Resilience
ability to recover from a disturbance
Functional groups
groups of species that have distinctive structures and/or perform distinctive functions in communities
coevolution
Adaptations that result from interactions between species over time, resulting in traits influenced by a history of competition, mutualism, feeding interactions, or disease.