Service Description: Aquatic Rare Amphibian Richness, Areas of Conservation Emphasis (ACE), version 3.0.
Aquatic rare species richness is a measure of species biodiversity, and is one measurement used to describe the distribution of overall species biodiversity in California for the California Department of Fish and Wildlife (CDFW) Areas of Conservation Emphasis Project (ACE). Other measures of aquatic species biodiversity included in the ACE aquatic biodiversity summary are aquatic native species richness and aquatic irreplaceability. Here, rare species richness represents a count of the total number of rare aquatic species potentially present in each watershed based on documented species occurrence information. This dataset depicts the distribution of richness of all aquatic species in the state, both common and rare. The data can be used to view patterns of species rarity, and to identify areas of highest rarity richness across the state. Users can view a list of species that contribute to the richness counts for each watershed.
The aquatic rare species richness summary depicts relative diversity within watersheds across the state. To correct for differences in the number of taxa per taxonomic group, the data was normalized by taxonomic group (see Data Sources and Models Used, below). The aquatic native species richness by taxonomic group layers give a statewide overview of richness for each individual taxonomic group, showing counts of species per watershed for aquatic amphibians, fish, and aquatic reptiles.
Service ItemId: 6c402f63a5844a9391642bf0411be186
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: False
All Layers and Tables
Layers:
Description: For more information, see the Aquatic Rare Species Richness Factsheet at https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=150853.
The California Department of Fish and Wildlife’s (CDFW) Areas of Conservation Emphasis (ACE) is a compilation and analysis of the best-available statewide spatial information in California on biodiversity, rarity and endemism, harvested species, significant habitats, connectivity and wildlife movement, climate vulnerability, climate refugia, and other relevant data (e.g., other conservation priorities such as those identified in the State Wildlife Action Plan (SWAP), stressors, land ownership). ACE addresses both terrestrial and aquatic data. The ACE model combines and analyzes terrestrial information in a 2.5 square mile hexagon grid and aquatic information at the HUC12 watershed level across the state to produce a series of maps for use in non-regulatory evaluation of conservation priorities in California. The model addresses as many of CDFWs statewide conservation and recreational mandates as feasible using high quality data sources. High value areas statewide and in each USDA Ecoregion were identified. The ACE maps and data can be viewed in the ACE online map viewer, or downloaded for use in ArcGIS. For more detailed information see https://www.wildlife.ca.gov/Data/Analysis/ACE and https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=24326.
ACE Areas of Conservation Emphasis; Program Lead; California Department of Fish and Wildlife (CDFW); Biogeographic Data Branch; ; ; ; ACE@wildlife.ca.gov;
Spatial Reference: 102100 (3857)
Initial Extent:
XMin: -13906444.80721
YMin: 3687591.86901669
XMax: -12647769.24819
YMax: 5308461.8257833
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -13849232.2818
YMin: 3833650.4457
XMax: -12704981.7736
YMax: 5162403.2491
Spatial Reference: 102100 (3857)
Units: esriMeters
Child Resources:
Info
Supported Operations:
Query
ConvertFormat
Get Estimates