Abundance Flashcards
What is abundance important for?
Fully describing a community
What is an important property of communites?
Species-rank abundance distributions
What is a good way of assessing community structure?
Rank abundance distributions
What is the relationship between abundance and range size?
Positive
BUT has many scatter points
What could cause a negative relationship between abundance and range size?
Low abundance
Means individuals are easy to miss
So range size may be underestimated
So there may be an artifical link between abundance and range size
How does range position affect range size?
Range is small and contains the lowest density populations
What factors class a species as rare?
Small geographical range size
Small population size
Habitat specialist