lecture 9 - species area relationship Flashcards
1
Q
what does species richness mean?
A
the number of different species found in a site
2
Q
what is alpha diversity?
A
the biodiversity WITHIN sites
3
Q
what is gamma diversity?
A
the total biodiversity in a REGION
4
Q
what is beta diversity?
A
measures how different the samples are across sites/ turnover of species
5
Q
what is the Jaccard coefficient?
A
equation that compares the community composition of 2 sites
a/ (a+b+c)
a = no. species found in both sites
b = no. species found in site 1 but not 2
c = no. species found in site 2 but not 1
6
Q
what are the 3 indices of species richness?
A
- alpha diversity
- gamma diversity
- beta diversity
