3.2 Biodiversity Flashcards
Ecological Succession
Transition of a species over time.
Primary Succession
When a community is created from nothing.
Secondary Succession
When a community is rebuilt.
Pioneer Species
The first species to inhabit a community.
Seral Stages
The middle stages of building a community.
Climax Community
The completed new community.
Species Richness
How many different types of species there are in a community.
Species Evenness
How proportionate the species populations are.
Genetic Diversity
Diversity in the genes of species throughout a community.
Ecological Diversity
Difference in the types of ecosystems.
Keystone Species
The most important species to an ecosystem.
Invasive Species
A species that takes over a community.
How do you find the Shannon-Wiener Index value?
Add each of the products of P and ln[P].
If site 1 has a H value of 0.98 and site 2 has a H value of 0.62, which is more diverse?
Site 1
If site 1 has a R value of 4 and site 2 has a R value of 7, which is more diverse?
Site 2
If site 1 has an E value of 0.94 and site 2 has an E value of 0.84, which is more diverse?
Site 1
If a community that was once covered by a glacier starts to grow, what type of succession is that?
Primary Succession
If a forest is recovering from loggers, what king of succession is that?
Secondary Succession
