10.2 Flashcards
Process of how the community changes over time
Ecological Succession
Succession starting with barren rock
Primary Succession
Starting after an enviroment is destroyed leaving a layer of soil.
Secondary Succession
The first colonizers: lichens, mossess, ferns, and bacteria
Pioneer Community
As soil improves, the life forms, and goes under many changes known as…
Seral Stages
A mature forest
Climax Ecosystem
The number of species
Species Richness
How similar the abundance of different species are
Species Eveness
Amount of genetic variation between individuals in the population
Gentetic Diveristy
How to find Shannon-Wiener Index
Determined by both the number of speiceis and the even distribution of indiciduals amoung these species. H= - SUM of (n1/N times the log of n1/n)
n1= indivudals in one species
N= total number accross all species.