Filters: Types: OGC WMS Layer (X) > Tags: {"type":"theme"} (X)
8 results (220ms)|
Filters
Date Range
Extensions Types Contacts
Categories Tag Schemes Tags (with Type=theme )
|
The northern bobwhite (Colinus virginianus) has experienced range wide declines over the last several decades, primarily because of reduction to habitat through loss and fragmentation. For studies on population decline and habitat, spatial scale is very important: the effects of habitat structure at local spatial scales may depend on the larger landscape scale, and patterns may be more evident at different scales. As northern bobwhite populations continue to decline, there is a need for studies that address habitat changes and their impact on northern bobwhite population trends and persistence at three spatial scales (regional, county, and home range). Our goal was to assess changes in habitat and land use and their...
Executive Summary: We provide an analysis of Sonoran Desert water network connectivity to inform managers of current conditions for target wildlife and how the connectivity will change as the landscape becomes more water limited.Climate change is expected to lead to fragmentation of the network, increasing coalescence distance by 8% and reducing the persistence and overall number of waters on the landscape. Identification of key water sites, ranked by network connectivity metrics, are presented in Appendix B. Wetland number under our scenario of water limitation will decline by 43% reducing network resilience.Anurans and Caudates, although varying in ability to disperse, generally experienced reduced connectivity...
Categories: Data,
Publication;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: 2013,
AZ-01,
AZ-02,
AZ-03,
AZ-04,
Texas Tech University will conduct quantitative and predictive analysis of the connectivity of isolated desert “wetlands”, that include tinajas, the name for eroded pools in bedrock, for 20 wildlife species over the Sonoran desert ecoregion. Potential loss of wetlands due to climate change will also be studied to identify high value areas that can be prioritized for future restoration efforts and targeted for better management practices.Target species for landscape connectivity analysis include:Colorado River toad ( Incilius alverius )American bullfrog ( Lithobates catesbeianus )Chiricahua leopard frog ( Lithobates chiricahuensis )Lowland leopard frog ( Lithobates yavapaiensis )Couch’s spadefoot ( Scaphiopus couchii...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2013,
AZ-01,
AZ-02,
AZ-03,
AZ-04,
The northern bobwhite Colinus virginianus has experienced range-wide declines over the past several decades, primarily due to habitat loss and habitat fragmentation. As northern bobwhite populations continue to decline, there is a need for studies that address the impact of habitat changes on population persistence at multiple spatial scales. Our goal was to assess changes in habitat and land use related to northern bobwhite declines across multiple spatial scales in Texas, Oklahoma, and Louisiana. We determined northern bobwhite trends for 1972–2012 using Breeding Bird Survey data. At the regional scale, we compared northern bobwhite population trends with road density (2000, 2012), human population (1970–2010),...
About This ProjectOpen woodlands dominated by southern yellow pine were historically a large component of the landscape across the southeastern United States. These woodlands have an open canopy of longleaf, slash, shortleaf, and/or loblolly pines, with scattered shrubs and a grassy understory. These southern open pine ecosystems support many species of wildlife, many of which have declined in recent years as the amount and condition of their habitat has declined. This troubling decline in wildlife species has led to a focus on regional conservation efforts by America’s Longleaf, the National Fish and Wildlife Foundation, Landscape Conservation Cooperatives, state wildlife agencies, the U.S. Forest Service, National...
About This ProjectOpen woodlands dominated by southern yellow pine were historically a large component of the landscape across the southeastern United States. These woodlands have an open canopy of longleaf, slash, shortleaf, and/or loblolly pines, with scattered shrubs and a grassy understory. These southern open pine ecosystems support many species of wildlife, many of which have declined in recent years as the amount and condition of their habitat has declined. This troubling decline in wildlife species has led to a focus on regional conservation efforts by America’s Longleaf, the National Fish and Wildlife Foundation, Landscape Conservation Cooperatives, state wildlife agencies, the U.S. Forest Service, National...
About This Project Open woodlands dominated by southern yellow pine were historically a large component of the landscape across the southeastern United States. These woodlands have an open canopy of longleaf, slash, shortleaf, and/or loblolly pines, with scattered shrubs and a grassy understory. These southern open pine ecosystems support many species of wildlife, many of which have declined in recent years as the amount and condition of their habitat has declined. This troubling decline in wildlife species has led to a focus on regional conservation efforts by America’s Longleaf, the National Fish and Wildlife Foundation, Landscape Conservation Cooperatives, state wildlife agencies, the U.S. Forest Service, National...
About This Project Open woodlands dominated by southern yellow pine were historically a large component of the landscape across the southeastern United States. These woodlands have an open canopy of longleaf, slash, shortleaf, and/or loblolly pines, with scattered shrubs and a grassy understory. These southern open pine ecosystems support many species of wildlife, many of which have declined in recent years as the amount and condition of their habitat has declined. This troubling decline in wildlife species has led to a focus on regional conservation efforts by America’s Longleaf, the National Fish and Wildlife Foundation, Landscape Conservation Cooperatives, state wildlife agencies, the U.S. Forest Service, National...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Conservation NGOs,
Data,
Data.gov South Atlantic Landscape Conservation Cooperative,
EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS,
|
|
