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The responses of individual species to environmental changes can be manifested at multiple levels that range from individual-level (i.e., behavioral responses) to population-level (i.e., demographic) impacts. Major environmental changes that ultimately result in population level impacts are often first detected as individual-level responses. For example, herbivores respond to limited forage availability during drought periods by increasing the duration of foraging periods and expanding home range areas to compensate for the reduction in forage. However, if the individual-level responses are not sufficient to compensate for reduced forage availability, reduced survival and reproductive rates may result. We studied...
Categories: Publication;
Types: Citation,
Report;
Tags: American pronghorn,
Drought,
Drought, Fire and Extreme Weather,
Mammals,
National CASC, All tags...
Rio Grande cutthroat trout,
Southwestern United States,
Wildlife and Plants,
desert bighorn sheep,
drought,
scaled quail, Fewer tags
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The responses of individual species to environmental changes can be manifested at multiple levels that range from individual-level (i.e., behavioral responses) to population-level (i.e., demographic) impacts. Major environmental changes that ultimately result in population level impacts are often first detected as individual-level responses. For example, herbivores respond to limited forage availability during drought periods by increasing the duration of foraging periods and expanding home range areas to compensate for the reduction in forage. However, if the individual-level responses are not sufficient to compensate for reduced forage availability, reduced survival and reproductive rates may result. We studied...
Categories: Publication;
Types: Citation,
Report;
Tags: American pronghorn,
Drought,
Drought, Fire and Extreme Weather,
Mammals,
National CASC, All tags...
Rio Grande cutthroat trout,
Southwestern United States,
Wildlife and Plants,
desert bighorn sheep,
drought,
scaled quail, Fewer tags
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Species that inhabit the arid Southwest are adapted to living in hot, dry environments. Yet the increasing frequency and severity of drought in the region may create conditions that even these hardy species can’t survive. This project examined the impacts of drought in the southwestern U.S. on four of the region’s iconic species: desert bighorn sheep, American pronghorn, scaled quail, and Rio Grande cutthroat trout. Grasping the impacts of drought on fish and wildlife is critical for management planning in the Southwest, as climate models project warmer, drier conditions for the region in the future. Species are known to respond to environmental changes such as drought in different ways. Often, before changes...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2013,
Birds,
Birds,
CASC,
Completed, All tags...
Drought,
Drought,
Drought, Fire and Extreme Weather,
Drought, Fire and Extreme Weather,
Fish,
Fish,
Mammals,
Mammals,
National CASC,
National CASC,
Projects by Region,
Wildlife and Plants,
Wildlife and Plants, Fewer tags
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Grassland birds are among the most imperiled bird guilds in North America. Scaled quail (Callipepla squamata) are a semi-arid grassland bird whose populations have declined over the past half century. We monitored scaled quail in New Mexico to study the effects of habitat, temperature and precipitation on survival of scaled quail adults, nests, and broods. Seasonal nest survival (39.4%) had a positive relationships with increasing average weekly maximum temperature and grass density, and negative relationships with increasing average minimum temperature and percent bare ground. Seasonal brood survival (49.0%) had a negative relationship with increasing average weekly minimum and maximum temperature, and with increasing...
Tags: Birds,
Drought,
Drought, Fire and Extreme Weather,
Ecology,
Land Use Change, All tags...
National CASC,
New Mexico,
USGS Science Data Catalog (SDC),
Wildlife Biology,
Wildlife and Plants,
scaled quail,
southwestern US,
southwestern United States, Fewer tags
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The responses of individual species to environmental changes can be manifested at multiple levels that range from individual-level (i.e., behavioral responses) to population-level (i.e., demographic) impacts. Major environmental changes that ultimately result in population level impacts are often first detected as individual-level responses. For example, herbivores respond to limited forage availability during drought periods by increasing the duration of foraging periods and expanding home range areas to compensate for the reduction in forage. However, if the individual-level responses are not sufficient to compensate for reduced forage availability, reduced survival and reproductive rates may result. We studied...
Categories: Publication;
Types: Citation,
Report;
Tags: American pronghorn,
Drought,
Drought, Fire and Extreme Weather,
Fish,
National CASC, All tags...
National CASC,
Rio Grande cutthroat trout,
Rivers, Streams and Lakes,
Southwestern United States,
Water, Coasts and Ice,
Wildlife and Plants,
desert bighorn sheep,
drought,
scaled quail, Fewer tags
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