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The length of gestation is the number of days between fertilization and parturition, and the length of lactation is the number of days between parturition and weaning. Determination of these lengths is difficult for ground-dwelling squirrels such as prairie dogs, marmots, and ground squirrels that usually copulate, give birth, and nurse offspring underground. For Gunnison's prairie dogs (Cynomys gunnisoni), the mean +1 SD length of gestation is 29.3 ? 0.53 days (n = 124). The approximate length of lactation, estimated from the mean +1 SD duration between parturition and the first emergence of juveniles from the natal burrow, is 38.6 ? 2.08 days (n = 112). Published in Journal of Mammalogy, volume 78, issue 1, on...
Areas occupied by white-tailed prairie dogs (WTPD; Cynomys leucurus) and Gunnison's prairie dogs (GPD; C. gunnisoni) are not well-known in Colorado (USA) and elsewhere. Suitable methodology for monitoring changes in populations of WTPD and GPD over broad areas also has not been well established. We evaluated occupancy modeling methodology to establish baseline occupancy rates for WTPD and GPD in Colorado. We estimated that WTPD occupied 24.1% (SE = 12.8) of 47,710 0.25-km2 plots and GPD occupied 7.5% (SE = 1.3) of 158,225 0.25-km2 plots in Colorado during 2004 and 2005. Areas reported as colonies in the Colorado Division of Wildlife's database were not good predictors of WTPD and GPD occupancy. Occupancy rates were...
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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...
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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...
Because most animals copulate surreptitiously, estimates of male and female copulatory success are elusive. Here I describe six distinctive behaviors that coincide with underground copulations of Gunnison's prairie dogs (Cynomys gunnisoni): the underground consortship itself, inordinate male attention toward the estrous female, self-licking of genitals, dustbathing, the mating call, and late final submergence of the estrous female. These diagnostic behaviors allowed me to identify sexual partners for 308 females that came into estrus during a 7-year study. Published in Journal of Mammalogy, volume 79, issue 3, on pages 887 - 897, in 1998.
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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...
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The influence of landscape spatial structure on ecological processes has recently received much attention. Comparisons are made here between the spatial structure of grasslands, and active and extirpated Gunnison's prairie dog (Cynomys gunnisoni Hollister) towns at the Petrified Forest National Park, Arizona, U.S.A. The spatial structure of bare ground was quatified using a box-counting technique to extract landscape fractal dimensions, D, and bare-ground patch size. These landscapes are fractal, and active prairie dog towns had higher fractal dimensions, i.e. a more homogeneous spatial structure as D approaches 2, than inactive towns, which had higher fractal dimensions than unmodified grasslands. Morisita's index...
Feasibility of assigning parentage using variable microsatellite loci was assessed for 2 species of prairie dogs. Parentage was determined from 7 microsatellite loci for 46% of juveniles born during 1994 in a colony of Gunnison's prairie dogs (Cynomys gunnisoni), and for 53% and for 45% of juveniles born during 1996 and 1997, respectively, in a colony of Utah prairie dogs (C. parvidens). Frequency of multiple paternity estimated for Gunnison's (77%) and Utah (71% and 90%) prairie dogs was greater than that detected previously for black-tailed prairie dogs (5%-10%) but within the range reported for other ground-dwelling squirrels. Of the 84 adult females and 33 adult males present during 1994 in the colony of Gunnison's...
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This map shows the potential current distribution of Gunnisons Prairie Dog, in the context of current and near-term terrestrial intactness and long-term potential for climate change and energy development. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of...
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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...
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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...
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There is growing recognition among ecologists that ecosystem engineers play important roles in creating habitat for other species, but the comparative and combined effects of co-existing engineers are not well known. Here, we evaluated the separate and interactive effects of two burrowing rodents, Gunnison's prairie dogs (Cynomys gunnisoni) and banner-tailed kangaroo rats (Dipodomys spectabilis), on lizards in the Chihuahuan Desert grassland (USA). We found that the mounds and burrow systems of both rodent species provided important habitat for lizards, with lizard abundance being 2 to 4-fold higher on mounds than in adjacent areas without mounds. Kangaroo rat mounds supported greater numbers of lizards than prairie...
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This dataset portrays an area which encompasses all known seasonal activity areas within the range of a population of Gunnison prairie dog. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The authoritative data source is available on ArcGIS.com (http://www.arcgis.com/home/item.html?id=cab1b9d43e6a4915a01134c60d38dfd8)...
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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...
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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...


map background search result map search result map Engineering rodents create key habitat for lizards The Gunnison's prairie dog structures a high desert grassland landscape as a keystone engineer Gunnison's prairie dog overall range, Colorado BLM REA SLV 2013 Grassland PFC 1km Poly Landscape Intactness BLM REA SLV 2013 Grassland PFC 1km Poly Fire BLM REA SLV 2013 Grassland PFC 1km Poly Human Development BLM REA SLV 2013 Grassland PFC 1km Poly Near Term Landscape Intactness BLM REA SLV 2013 Grassland PFC 1km Poly Climate BLM REA SLV 2013 Grassland PFC 1km Poly Near Term Climate BLM REA SLV 2013 Grassland PFC 1km Poly Vegetation Departure BLM REA COP 2010 Colorado Plateau (COP) Distribution of the Gunnison Prairie Dog Colonies The Gunnison's prairie dog structures a high desert grassland landscape as a keystone engineer Engineering rodents create key habitat for lizards BLM REA SLV 2013 Grassland PFC 1km Poly Landscape Intactness BLM REA SLV 2013 Grassland PFC 1km Poly Fire BLM REA SLV 2013 Grassland PFC 1km Poly Human Development BLM REA SLV 2013 Grassland PFC 1km Poly Near Term Landscape Intactness BLM REA SLV 2013 Grassland PFC 1km Poly Climate BLM REA SLV 2013 Grassland PFC 1km Poly Near Term Climate BLM REA SLV 2013 Grassland PFC 1km Poly Vegetation Departure Gunnison's prairie dog overall range, Colorado BLM REA COP 2010 Colorado Plateau (COP) Distribution of the Gunnison Prairie Dog Colonies