Biodiversity Metrics
EPA 600 F-11.006
May 2011
www.epa.gov

i) musgsi
k	science for a changing world
CASE
Center for Applied
Spatial Ecology
Project Study Areas
Focus on Clients
Include Decision Makers
Indicators to Inform
Tradeoffs
Scaled to Inform Decisions
Relevant to People

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Ecosystem services, i.e., "services provided to humans
from natural systems," have become a key focus of
this century in resource management, conservation
planning, human well-being, and environmental
decision analysis. Mapping and quantifying
ecosystem sendees have become strategic national
interests for integrating ecology with economics in
order to help explain the effects of human policies
and the subsequent impacts on both ecosystem
function and human welfare. Some characteristics of
biodiversity are valued by humans in many ways, and
thus are important to include in any assessment that
seeks to identify and quantify the value of ecosystems
to humans. Some biodiversity metrics clearly reflect
ecosystem services (e.g., abundance and diversity
of game species), whereas others reflect indirect and
difficult to quantify relationships to services (e.g., relevance of species
diversity to ecosystem resilience, cultural value of native species).
Wildlife habitat has been modeled at broad spatial scales and can be
used to map a number of biodiversity metrics. In this approach, we map
metrics reflecting ecosystem services or biodiversity features using U.S.
Geological Survey Gap Analysis Program data, including land cover,
land stewardship, and deductive habitat models for terrestrial vertebrate
species. Example metrics include species-of-greatest-conservation-need,
threatened and endangered species, harvestable species (i.e., upland
game, waterfowl, fur bearers, and big game), total species, and specific
taxa. The project is being conducted at multiple scales in a phased
approach, startmg with community-based studies (San Pedro, Albemarle-
Pamlico, and Tampa Bay), then multi-state regional areas (Southwest and
Southeast), finally culminating in a national-level Atlas of Sustainable
Ecosystem Services under development by the U.S. Environmental
Protection Agency and its partners.
Climate Vulnerable Species
Common Species in Decline
Culturally Important Species
Grassland Obligate Species
Harvestable Species
Land Cover Richness
Listing Candidate or Sensitive
Species
Migratory Bird Species
Riparian Obligate Species
Species of Economic and
Recreational Importance
Species of Greatest
Conservation Need
Threatened & Endangered
Species
Total Species & Taxa Richness
http://fws-case-12.nmsu.edu/CASE/ES/

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Biodiversity and Ecosystem Services

Mapped Index Value is spec es
richness of pixel/pixel with highest
species richness in southwest region
Reptiles
.and Cover Richness (10km
Neighborhood) A
Amphibians
Bats -SGCN
Harvestable-Furbearer
Mammals
larvestable-Waterfowl
SGCN -All
Harvestable - Big Game
SGCN -Reptiles
'Harvestable- Upland
SGCN -Amphibians
Average index
Value
Harvestable - All
SGCN -Birds
SGCN -Mammals"x
~Southwest

ARio Grande
Biodiversity Metrics for Southwest Region portrayed as a Radar Graph
Environmental Protection Agency
Office of Research and Development, National Exposure Research
Laboratory, Landscape Ecology Branch, RO. Box 93478, Las Vegas,
Nevada 89193-3478 USA (or 944 E. Harmon Ave., Las Vegas,
Nevada 89119 USA)
•	William G. Kepner, Research Ecologist, Tel: 702-798-2193;
FAX: 702-798-2208; kepner.william@epa.gov
•	David F. Bradford, Research Ecologist, Tel: 702-798-2681;
FAX: 702-798-2208; bradford.david@epa.gov
Research Triangle Park, NC 27711
•	Anne C. Neale, Physical Scientist, Tel: 919-541-3832;
FAX: 919-541-4329: neale.anne@epa.gov
New Mexico State University
Center for Applied Spatial Ecology, New Mexico Cooperative
Fish and Wildlife Research Unit Department of Fish, Wildlife, and
Conservation Ecology, Box 30003, MSC 4901, Las Graces, NM
88003
•	Kenneth G. Boykin, Research Associate Professor, Tel: 575-646-6303;
FAX: 575-646-1281; kboykin@misu.edu
U.S. Geological Survey, Gap Analysis Program,
National GAP Operations Office, 530 S Asbury St. , Suite 1,
Moscow, ID 83843
•	Kevin Gergely, Tel: 208-885-3565; FAX: 208-885-3618;
gergely @uidaho. edu

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