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Showing 1 to 20 of 46 for “"grassland birds"”.
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Nesting Ecology of Grassland Birds in an Agricultural Landscape
… is an appropriate landscape context for grassland reserves. I found agricultural edges do not influence nest predation, reserves in agricultural settings support successful nesting throughout breeding seasons, and cropland is an important foraging habitat for birds provisioning nestlings …
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Resource selection, movement patterns, and survival of post-fledging grassland birds in Missouri
Current grassland management paradigms focus on addressing nesting requirements for grassland birds, but ignore post-fledging requirements. I described resource selection, movement patterns, and survival of dickcissels (Spiza americana) and eastern meadowlarks (Sturnella magna) in southwestern …
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Nesting Success of Grassland Birds in Fragmented and Unfragmented Landscapes of North Central South Dakota
Decline of grassland bird species has frequently been linked to habitat loss and fragmentation. A large amount of remaining native prairie is in the form of grazed pastureland; however, few studies have focused on assessing pastureland as habitat. While studies have found that species occurrence, …
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Conservation of Grassland Birds in an Agricultural Landscape: The Importance of Habitat Availability and Demography
… this study suggest that the creation of small grassland complexes within an agricultural matrix is an effective conservation strategy. Furthermore, the results underscore the importance of understanding how life history traits influence population demography and emphasize the importance of …
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Habitat selection and breeding ecology of grassland birds in areas managed with fire and grazing
Conversions of grasslands to row crop agriculture over recent decades have contributed to steep declines in grassland bird populations in the Midwest. On top of habitat loss, the cessation of historic disturbance regimes on remaining grasslands has served to homogenize vegetation structure. Because …
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Investigating impacts of environmental biotic and abiotic factors on the breeding habitat and diet of declining grassland birds
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Going through the motions : the impacts of frequent fires and grazing pressure on reproduction of Montane grassland birds
… implicated as a cause for the decline of many grassland-nesting birds across the globe. While this effect has motivated extensive research and conservation in the developed northern hemisphere, it remains poorly addressed in southern hemisphere. Between 1998 and 2001 I examined the effect of …
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Habitat use, nest success, and management recommendations for grassland birds of the Canaan Valley National Wildlife Refuge, West Virginia
Grassland bird populations have been declining due to increased habitat fragmentation, urbanization, and conversion of farmlands to other uses throughout the United States. However, idle hayfields and pastures in the eastern United States may provide adequate nesting habitat for grassland species …
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Landscape Fragmentation and Grassland Patch Size Effects on Non-game Grassland Birds in Xeric Mixed-grass Prairies of Western South Dakota
Grassland bird populations have been declining throughout North America since the 1960’s. These declines have been attributed to landscape fragmentation, loss of grassland habitats, and the size and isolation of remaining grasslands. The purpose of this study was to inventory non-game birds on …
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A Comparison of Land Use and Land Cover in Public Lands of the Northwestern Great Plains and High Plains Ecoregions and the Implications For Grassland Birds
<p>Loss and degradation of grassland habitat are driving forces that contribute to widespread declines of grassland birds in the United States. Many studies have evaluated habitat needs for the conservation of grassland birds, but the relative contribution of public lands in representing and …
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Effects of Seasonal Burns on Avian Foraging in a Central Texas Ashe Juniper-Live Oak Savanna
North American grassland birds have been declining for the past three decades. Loss of habitat from urbanization, agricultural land use, and encroachment of woody species may account for this decline. Prescribed burning is one method for restoring remnants of grassland habitat, typically performed …
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Grassland and breeding bird use of moist-soil wetlands managed for waterfowl
Many species of breeding birds are declining in the United States, and grassland birds are among those experiencing the steepest declines. One of the most widely accepted reasons for decreasing populations is habitat loss. For grassland birds in the midwestern United States during the spring and …
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Influence Of Landscape Spatial Patterns And Land Use Planning On Grassland Bird Habitat Occupancy In Chester County, Pennsylvania
Throughout their range, North American grassland birds as a group have shown steeper and more widespread population declines than any other avian guild. Grassland bird decline corresponds to habitat loss, landscape fragmentation, agricultural intensification, and changes in land management. In …
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Influence of Habitat Disturbances on Endemic Grassland Bird Distributions in Loamy Ecological Range Sites at Canadian Forces Base Suffield, Alberta
Many grassland birds are at risk and habitat disturbance may have an important influence on the persistence of these species. Military bases provide an opportunity to examine the influence of habitat disturbance on grassland birds, whose distributions are influenced by vegetation structure. Spatial …
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Measuring the exposure of Songbird Nestlings to Neonicotinoids in Natural and Agricultural Nest Sites
… However, recent literature suggests that grassland birds are experiencing population declines concurrently with increased IMI use. Field research was conducted to test the presence of IMI in Savannah Sparrow (SAVS) nestlings and their insect food supply at agricultural and non-agricultural …
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