Diversity

• Local and regional diversity

• 

  • Local diversity: The number of species in a relatively small area of homogeneous habitat, such as a stream. Also known as alpha diversity.

  • Regional diversity: The number of species in all the habitats that comprise a large geographic area. Also known as gamma diversity.

  • Beta diversity: The number of species that differ in occurrence between two habitats.

  • Regional species pool: The collection of species that occurs within a region.

Biodiversity

• Alpha

  • local diversity. the number of species in a relatively small area of homogeneous habitat, such as a stream

• Beta

  • species turnover. the number of species that differ in occurrence between two habitats

• Gamma

  • regional diversity. the number of species in all the habitats that comprise a large geographic area

Landscape ecology: Diversity

• Local and regional diversity

• Measuring biodiversity

  • What do we measure?

Taxonomic Diversity

• Taxonomic diversity: the richness and abundance of species. Quantification of the number of species.

Functional Diversity

• Functional diversity: the variety of growth forms or resource use strategies present in the community.

Phylogenetic Diversity

• Phylogenetic Diversity: a biodiversity index that measures the length of evolutionary pathways that connect a given set of taxa

Parrot diversity