Skip to main content
Advanced Search

Filters: Contacts: Susan K. Skagen (X)

6 results (39ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
The influence of recent climate change on the world’s biota has manifested broadly, resulting in latitudinal range shifts, advancing dates of arrival of migrants and onset of breeding, and altered community relationships. Climate change elevates conservation concerns worldwide because it will likely exacerbate a broad range of identified threats to animal populations. In the past few decades, grassland birds have declined faster than other North American avifauna, largely due to habitat threats such as the intensification of agriculture. We examine the effects of local climatic variations on the breeding performance of a bird endemic to the shortgrass prairie, the Lark Bunting (Calamospiza melanocorys) and discuss...
thumbnail
Playa wetlands on the west-central Great Plains of North America are vulnerable to sediment infilling from upland agriculture, putting at risk several important ecosystem services as well as essential habitats and food resources of diverse wetland-dependent biota. Climate predictions for this semi-arid area indicate reduced precipitation which may alter rates of erosion, runoff, and sedimentation of playas. We forecasted erosion rates, sediment depths, and resultant playa wetland depths across the west-central Great Plains and examined the relative roles of land use context and projected changes in precipitation in the sedimentation process. We estimated erosion with the Revised Universal Soil Loss Equation (RUSLE)...
thumbnail
Summary of project, results, and discussion for the study completed by Susan K. Skagen, Amy A. Yackel Adams, Victoria J. Dreitz, Ressa Yale Conrey, Lucy Burris, Gene Albanese, Craig A. Davis and Bradley W. Compton. Summary written by the Great Plains Landscape Conservation Cooperative (GP LCC).
Abstract from Ecosphere: The Prairie Pothole Region, situated in the northern Great Plains, provides important stopover habitat for migratory shorebirds. During spring migration in the U.S. Prairie Potholes, 7.3 million shorebirds refuel in the region's myriad small, freshwater wetlands. Shorebirds use mudflats, shorelines, and ephemeral wetlands that are far more abundant in wet years than dry years. Generally, climate change is expected to bring warmer temperatures, seasonality shifts, more extreme events, and changes to precipitation. The impacts to wetland habitats are uncertain. In the Prairie Potholes, earlier spring onset and warmer temperatures may advance drying of wetlands or, alternately, increased spring...
thumbnail
Native grasslands have been altered to a greater extent than any other biome in North America. The habitats and resources needed to support breeding performance of grassland birds endemic to prairie ecosystems are currently threatened by land management practices and impending climate change. Climate models for the Great Plains prairie region predict a future of hotter and drier summers with strong multiyear droughts and more frequent and severe precipitation events. We examined how fluctuations in weather conditions in eastern Colorado influenced nest survival of an avian species that has experienced recent population declines, the Mountain Plover (Charadrius montanus). Nest survival averaged 27.2% over a 7-yr...


    map background search result map search result map Implications of climate change for avian conservation in Great Plains landscapes Drought and Cooler Temperatures Are Associated with Higher Nest Survival in Mountain Plovers Modeling sediment accumulation in North American playa wetlands in response to climate change, 1940–2100 Project Summary: Implications of climate change for avian conservation in Great Plains landscapes Weather effects on avian breeding performance and implications of climate change Implications of climate change for avian conservation in Great Plains landscapes Drought and Cooler Temperatures Are Associated with Higher Nest Survival in Mountain Plovers Modeling sediment accumulation in North American playa wetlands in response to climate change, 1940–2100 Project Summary: Implications of climate change for avian conservation in Great Plains landscapes Weather effects on avian breeding performance and implications of climate change