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Conservation Biology Exam 1 Review
Terms in this set (19)
The ability to maintain something over time without diminishing it
Completeness or wholeness of an ecosystem broader than bodiversity as it is inclusive of all ecosystem elements
WWS definition of Biodiversity
richness, abundance, variability of plat and animal species and communities and ecological processes that link them
UN definition of Biodiversity
variability among living organisms from all sources including terrestrial and marine ecosystems and ecological complexes; includes diversity in species, between species, and of ecosystems
group of populations whose individuals have the potential to interbreed and produce fertile offspring
What is the main isolating mechanisms of species?
How do we measure biodiversity?
species richness, species abundance, relative abundance, evenness, and rarefaction
The number of species per unit area
The number of individuals of a given species
The proportion of total abundance of individuals a given species occupies
A weighted measure of importance based on abundance
What is the problem with using evenness to measure biodiversity?
Evenness can't really be used to compare different species because as more individuals are sampled, species increase asymmetrically
Variation in the distribution of species over space; also called turnover
What suggests that protecting a species over its entire geographic range is important?
Assemblages of species have different emergent properties, associated with abiotic factors
Diversity of Phenomena
Migration events or seasonal changes that span multiple habitats, include numerous species, and/or cover vast spatial areas
What 3 things are important for assessing biodiversity?
the value of an organism independent of its value to humans
probability of extinction over a short time span (1-3 years)
Sets with similar terms
Species Richness (Ch. 18/19)
Ch. 15 Species Diversity
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