|
Conservation
Issues
Endangered Species
Sustainable Forestry
Smart Growth
Invasive Species
Biodiversity Insights
Sustainable Development in Latin America
|
|
Biodiversity Insights > The Biodiversity of California
The extraordinary biological diversity of California is vividly
depicted in Atlas of the Biodiversity of California, a new book from
the California Department of Fish and Game (DFG).
The 112-page atlas draws extensively on data and analysis from the California Natural Diversity Database, a NatureServe member program, as well as many other sources. The atlas details the Golden State's biological resources, covering a wide array of terrestrial and aquatic animals, plants, and habitats.
It explains
the state's remarkable geography, shows how biodiversity is measured, and provides
examples of the complexity and uniqueness of many of California's treasured
wildlife habitats. The book's visually stunning maps, photographs, and illustrations
depict the state's rich diversity of plant and animal species.
California is a remarkable state biologically, ranking at
or near the top among the 50 states in nearly every category of biodiversity
(see table below). Often referred to as an ecological island, separated by high
mountains from the rest of the continent, California's biological diversity
is the product of the variability of its landforms, climate, and soil types.
From this physical complexity, an array of specialized habitat types has developed,
leading to the evolution of a highly distinctive flora and fauna.
|
Biodiversity Measure
|
Number in California
|
Rank Among the States
|
|
Diversity (total number of species)
|
6,717 species
|
1st
|
|
Endemism (number of endemic species)
|
1,295 species
|
1st
|
|
Risk (percent of species at risk)
|
28.5%
|
2nd
|
|
Extinction (number of extinct species)
|
53 species
|
3rd
|
|
|
|
|
|
Plant Diversity (number of vascular plants)
|
5,418 species
|
1st
|
|
Plant Risk (percent of species at risk)
|
30.7%
|
2nd
|
|
Mammal Diversity (number of mammals)
|
195 species
|
1st
|
|
Mammal Risk (percent of species at risk)
|
16.4%
|
3rd
|
|
Bird Diversity (number of birds)
|
415 species
|
4th
|
|
Bird Risk (percent of species at risk)
|
4.8%
|
3rd
|
|
Reptile Diversity (number of reptiles)
|
86 species
|
5th
|
|
Reptile Risk (percent of species at risk)
|
16.3%
|
5th
|
|
Amphibian Diversity (number of amphibians)
|
57 species
|
9th
|
|
Amphibian Risk (percent of species at risk)
|
49.1%
|
1st
|
|
Freshwater Fish Diversity (number of freshwater
fish)
|
62 species
|
34th
|
|
Freshwater Fish Risk (percent of species at risk)
|
50.0%
|
5th
|
Text adapted from material provided by the DFG and from
the NatureServe report States of the Union: Ranking America's Biodiversity
(2002). Table adapted from States of the Union.
Map graphics provided courtesy of the California Department of Fish and Game (DFG).
|
|