Variety of species in an ecological community, landscape or region
Global mammal richness (2015)Global amphibian richness (2015)
Species richness is the number of different species represented in an ecological community, landscape or region.[1] Species richness is simply a count of species, and it does not take into account the abundances of the species or their relative abundance distributions. Species richness is sometimes considered synonymous with species diversity, but the formal metric species diversity takes into account both species richness and species evenness.
^Colwell, Robert K. (2009). "Biodiversity: Concepts, Patterns and Measurement". In Simon A. Levin (ed.). The Princeton Guide to Ecology. Princeton: Princeton University Press. pp. 257–263.
Speciesrichness is the number of different species represented in an ecological community, landscape or region. Speciesrichness is simply a count of...
Speciesrichness, or biodiversity, increases from the poles to the tropics for a wide variety of terrestrial and marine organisms, often referred to as...
Meanings of species diversity may include speciesrichness, taxonomic or phylogenetic diversity, and/or species evenness. Speciesrichness is a simple...
types of data available for download: Speciesrichness map (amphibians) Speciesrichness map (birds) Speciesrichness map (mammals) Geographic range limit...
the speciesrichness and diversification of isolated natural communities. The theory was originally developed to explain the pattern of the species–area...
estimating abundance. Species evenness is combined with speciesrichness, (the number of species in the community), in order to determine species diversity, which...
Relative species abundance and speciesrichness describe key elements of biodiversity. Relative species abundance refers to how common or rare a species is...
Flecker, A. S. (2002). "An ecosystem engineer, the beaver, increases speciesrichness at the landscape scale". Oecologia. 132 (1): 96–101. Bibcode:2002Oecol...
contains. For example, speciesrichness (usually noted S) is simply the number of species, e.g. at a particular site. Richness is a simple measure, so...
disturbance and species diversity. IDH is based on the following premises: First, ecological disturbances have major effects on speciesrichness within the...
body size-speciesrichness distribution is a pattern observed in the way taxa are distributed over large spatial scales. The number of species that exhibit...
geographically with each other regarding endemism and speciesrichness. Especially using mammals as flagship species proved to be a poor system of identifying and...
A generalist species is able to thrive in a wide variety of environmental conditions and can make use of a variety of different resources (for example...
Zielinkski and Hartwell H. Walsh, Jr. 2006. "Evaluating reserves for speciesrichness and representation in northern California." Diversity and Distributions...
An invasive species is an introduced species to an environment that becomes overpopulated and harms its new environment. Invasive species adversely affect...
some phytoplankton models predict an increase in speciesrichness, or the number of different species within a given area. This increase in plankton diversity...
In ecology, species homogeneity is a lack of biodiversity. Speciesrichness is the fundamental unit in which to assess the homogeneity of an environment...
diversity of microorganisms in soda lakes is very high, with speciesrichness (number of species present) of individual lakes often rivaling that of freshwater...
adequately represent other forms of speciesrichness (e.g. total speciesrichness or threatened speciesrichness). Do not adequately represent taxa other...
flora and decreases speciesrichness, food and shelter to many other species at higher trophic levels. In this way, one species can influence the populations...
mineral-rich water into a fen changes the water chemistry, which can alter speciesrichness and dry out the peat. Drier peat is more easily decomposed and can...
In conservation biology, a flagship species is a species chosen to raise support for biodiversity conservation in a given place or social context. Definitions...
replace the more clearly-defined and long-established terms, species diversity and speciesrichness. Other definitions include (in chronological order): An...
is any species that creates, significantly modifies, maintains or destroys a habitat. These organisms can have a large impact on speciesrichness and landscape-level...
(Scarini) of the wrasses (Labridae). With roughly 95 species, this group's largest speciesrichness is in the Indo-Pacific. They are found in coral reefs...
between the topology of food web predator-prey linkages and levels of speciesrichness. Food webs are the road-maps through Darwin's famous 'entangled bank'...
Global Information
