Filters: Tags: burrowing owl (X)
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Categories: Publication;
Types: Citation;
Tags: Athene cunicularia,
Black-tailed prairie dog,
Burrowing organisms,
Burrowing owl,
Cynomys ludovicianus,
Concern over the status of species associated with prairie dog colonies has increased with the recent proposed listing of black-tailed prairie dogs (Cynomys ludovicianus). We monitored burrowing owl (Athene cunicularia) populations and prairie dog densities in 17 black-tailed prairie dog colonies in the Nebraska panhandle between 1990 and 1996. All prairie dog colonies were controlled at least once during the study. We observed a 63% decline in nesting pairs of burrowing owls and significant declines in burrow densities. Results indicated a time lag in owl response to changes in active burrow densities. However, in the later years of the study when burrow densities were lowest, owl numbers were positively correlated...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Athene cunicularia,
Cynomys ludovicianus,
Great Plains,
Journal of Wildlife Management,
Nebraska,
Location of burrowing owl boxes at Shinohara property, Sweetwater Reservoir, San Diego National Wildlife Refuge, San Diego County, CA. Data provided by John Martin, Biologist, USFWS.
This dataset presents current and future change agent models and combined future potential for change (PFC) within grassland fauna assemblage potentially suitable habitat.The grassland fauna assemblage potentially suitable habitat extent was determined by combining the SWReGAP Vertebrate Habitat Distribution Models for the burrowing owl, mountain plover, Gunnison's prairie dog, and swift fox and clipping to the study area for the SLV-TP Landscape Assessment. This dataset presents current and future change agent models and combined future potential for change (PFC). Potential for change (PFC) was determined by calculating the maximum potential for change among all change agents within each 1 km reporting unit. Current...
This dataset presents current and future change agent models and combined future potential for change (PFC) within grassland fauna assemblage potentially suitable habitat.The grassland fauna assemblage potentially suitable habitat extent was determined by combining the SWReGAP Vertebrate Habitat Distribution Models for the burrowing owl, mountain plover, Gunnison's prairie dog, and swift fox and clipping to the study area for the SLV-TP Landscape Assessment. This dataset presents current and future change agent models and combined future potential for change (PFC). Potential for change (PFC) was determined by calculating the maximum potential for change among all change agents within each 1 km reporting unit. Current...
This dataset presents current and future change agent models and combined future potential for change (PFC) within grassland fauna assemblage potentially suitable habitat.The grassland fauna assemblage potentially suitable habitat extent was determined by combining the SWReGAP Vertebrate Habitat Distribution Models for the burrowing owl, mountain plover, Gunnison's prairie dog, and swift fox and clipping to the study area for the SLV-TP Landscape Assessment. This dataset presents current and future change agent models and combined future potential for change (PFC). Potential for change (PFC) was determined by calculating the maximum potential for change among all change agents within each 1 km reporting unit. Current...
Concern over the decline of grassland birds has spurred efforts to increase understanding of grassland bird-habitat relationships. Previous studies have suggested that black-tailed prairie dogs (Cynomys ludovicianus) provide important habitat for shortgrass prairie avifauna, such as mountain plover (Charadrius montanus) and western burrowing owl (Athene cunicularia hypugaea), although such studies are lacking in Colorado (USA). We used methods to estimate occupancy (psi) of mountain plover and burrowing owl on prairie dog colonies and other shortgrass prairie habitats in eastern Colorado. Mountain plover occupancy was higher on prairie dog colonies (psi = 0.50, 95% CI = 0.36-0.64) than on grassland (psi = 0.07,...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Athene cunicularia,
Charadrius montanus,
Colorado,
Cynomys ludovicianus,
Journal of Wildlife Management,
Some populations of western burrowing owls (Athene cunicularia hypugaea) have declined in recent decades. To design and implement effective recovery efforts, we need a better understanding of how distribution and demographic traits are influenced by habitat quality. To this end, we measured spatial patterns of burrowing owl breeding habitat selection within black-tailed prairie dog (Cynomys ludovicianus) colonies in northeastern Wyoming, USA. We compared burrow-, site-, colony-, and landscape-scale habitat parameters between burrowing owl nest burrows (n = 105) and unoccupied burrows (n = 85). We sampled 4 types of prairie dog colonies: 1) owl-occupied, active with prairie dogs (n = 16); 2) owl-occupied, inactive...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Athene cunicularia,
Cynomys ludovicianus,
Great Plains,
Journal of Wildlife Management,
Wyoming,
Obtaining reliable estimates of absolute and relative reproductive rates is challenging for avian species whose nests are difficult to observe, such as the burrowing owl (Athene cunicularia). We compared methods for estimating reproductive rates of burrowing owls, defined as the number of 21- to 28-day-old young per Successful nest. We compared observations using (1) the mean and (2) the maximum number of young observed during 5 30-min observation periods, and (3) the maximum number of voting videotaped during 2-hr video surveillance. We evaluated the reliability of these methods with the known number of young present in nest boxes. All 3 methods performed poorly as estimators of absolute reproductive rates (absolute...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Athene cunicularia,
California,
Journal of Wildlife Management,
brood size,
burrowing owl,
Potentially suitable target species habitat.
Dataset includes 2011 habitat assessment polygons in Rancho Jamul Ecological Reserve, San Diego County, CA that meet biotic and abiotic requirements to support burrowing owl and thus, constitute existing or potential burrowing owl habitat.Detailed habitat assessments were conducted by CBI, TNC, and SDSU within the four designated South County grassland management planning units (Rancho Jamul Ecological Reserve, Sweetwater Reservoir, Sycamore Canyon, and Proctor Valley) to document existing habitat conditions and determine habitat suitability for target species and habitats. Habitat assessment data were also used to (1) identify suitable resource-specific restoration activities within each of the four planning...
Categories: Publication;
Types: Citation;
Tags: Animal Behavior Abstracts,
Athene cunicularia,
Burrowing owl,
Habitat preferences,
Nesting behavior,
The Commission on Environmental Cooperation, in concert with a trinational group of experts, has identified North American species of common conservation concern (SCCC). These terrestrial and marine species comprise a group of important migratory, transboundary and endemic species selected from among the continent’s great wealth of wild flora and fauna, which require regional cooperation for their effective conservation.
This dataset presents current and future change agent models and combined future potential for change (PFC) within grassland fauna assemblage potentially suitable habitat.The grassland fauna assemblage potentially suitable habitat extent was determined by combining the SWReGAP Vertebrate Habitat Distribution Models for the burrowing owl, mountain plover, Gunnison's prairie dog, and swift fox and clipping to the study area for the SLV-TP Landscape Assessment. This dataset presents current and future change agent models and combined future potential for change (PFC). Potential for change (PFC) was determined by calculating the maximum potential for change among all change agents within each 1 km reporting unit. Current...
This dataset presents current and future change agent models and combined future potential for change (PFC) within grassland fauna assemblage potentially suitable habitat.The grassland fauna assemblage potentially suitable habitat extent was determined by combining the SWReGAP Vertebrate Habitat Distribution Models for the burrowing owl, mountain plover, Gunnison's prairie dog, and swift fox and clipping to the study area for the SLV-TP Landscape Assessment. This dataset presents current and future change agent models and combined future potential for change (PFC). Potential for change (PFC) was determined by calculating the maximum potential for change among all change agents within each 1 km reporting unit. Current...
Dataset includes 2012 habitat assessment polygons in Proctor Valley, San Diego County, CA that meet biotic and abiotic requirements to support burrowing owl and thus, constitute existing or potential burrowing owl habitat.Detailed habitat assessments were conducted by CBI, TNC, and SDSU within the four designated South County grassland management planning units (Rancho Jamul Ecological Reserve, Sweetwater Reservoir, Sycamore Canyon, and Proctor Valley) to document existing habitat conditions and determine habitat suitability for target species and habitats. Habitat assessment data were also used to (1) identify suitable resource-specific restoration activities within each of the four planning areas and (2) develop...
Dataset includes 2011 habitat assessment polygons in Sycamore Canyon, San Diego County, CA that meet biotic and abiotic requirements to support burrowing owl and thus, constitute existing or potential burrowing owl habitat.Detailed habitat assessments were conducted by CBI, TNC, and SDSU within the four designated South County grassland management planning units (Rancho Jamul Ecological Reserve, Sweetwater Reservoir, Sycamore Canyon, and Proctor Valley) to document existing habitat conditions and determine habitat suitability for target species and habitats. Habitat assessment data were also used to (1) identify suitable resource-specific restoration activities within each of the four planning areas and (2) develop...
This map contains:Terrestrial Intactness results for the State of Utah and the Colorado Plateau Ecoregion, 1 km resolution.Terrestrial Species Intactness results clipped to 15 different species' distributions, showing the TI status/condition for each species of interest in the COP.These datasets provide an estimate of current terrestrial intactness (i.e. condition) based on the extent to which human impacts such as agriculture, urban development, natural resource extraction, and invasive species have disrupted the landscape across the State of Utah and the Colorado Plateau Ecoregion. Terrestrial intactness values will be high in areas where these impacts are low.Documentation of model structure and input data and...
The Washington Connected Landscapes Project will provide a framework to address the interacting impacts of habitat fragmentation and climate change on ecological systems and wildlife species within the Great Northern Landscape Conservation Cooperative (GNLCC) boundary.Managing for well-connected landscapes is a key strategy to enhance resilience and ensure the long-term viability of plant and animal populations. However, conservation planning efforts have rarely included connectivity for ecological processes such as dispersal, migration, and gene flow. Connectivity conservation is particularly important in the face of climate change, because many species will require highly permeable, well-connected landscapes not...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alberta,
Alberta,
Applications and Tools,
British Columbia,
British Columbia,
Locations of burrowing owl boxes within dethatch area, Sweetwater Reservoir, San Diego National Wildlife Refuge, San Diego County, CA. Data provided by John Martin, Biologist, USFWS.
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