Edge Avoidance by Nesting Grassland Birds: A Futile Strategy in a Fragmented Landscape
نویسندگان
چکیده
منابع مشابه
A Landscape Analysis of Grassland Birds in a Valley Grassland-Oak Woodland Mosaic
While little research has been done on California grassland birds, their populations are thought to be declining due to habitat loss, fragmentation, and degradation. We investigated the association between California grassland birds and their landscape-scale habitat matrix. The habitat is a mosaic of valley grassland with blue oak and coast live oak woodlands. In this study, we used logistic re...
متن کاملUse of a Reclaimed Stripmine by Grassland Nesting Birds in East-Central Ohio
During the 1997-1998 breeding seasons the author examined the nesting success of grassland birds on plots that were mowed prior to the onset of nesting and on unmowed plots on a 3,700 ha reclaimed stripmine in east-central Ohio. Grasshopper sparrows (Ammodramus savannarum), eastern meadowlarks (Sturnella magnci), red-winged blackbirds (Agelaius pboeniceus^), Henslow's sparrows (A. henslowiO, an...
متن کاملPatterns of Area Sensitivity in Grassland-Nesting Birds
Between 1995 and 1997, we studied breeding birds in fragments of native tallgrass prairie in southwestern Missouri to determine the effect of habitat fragmentation on grassland bird populations. Data on density and nesting success collected in 13 prairie fragments of various sizes revealed three levels of area sensitivity. The most area-sensitive species, Greater Prairie-Chicken ( Tympanuchus c...
متن کاملHabitat Use by Nesting Grassland Birds and Their Snake Predators in the Tallgrass Prairie
Grassland bird populations have seen greater declines than any other group of birds in North America. Although snake predation is considered the primary reason for nest failure, little is known about how management practices in the Flint Hills region of Kansas impact movement and habitat use of snakes, and the predator-prey interaction between snakes and nests of grassland birds. Radio telemetr...
متن کاملHabitat acquisition strategies for grassland birds in an urbanizing landscape.
Habitat protection for grassland birds is an important component of open space land acquisition in suburban Chicago. We use optimization decision models to develop recommendations for land protection and analyze tradeoffs between alternative goals. One goal is to acquire (and restore if necessary) as much grassland habitat as possible for a given budget. Because a viable habitat for grassland b...
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ژورنال
عنوان ژورنال: The Auk
سال: 2005
ISSN: 1938-4254,0004-8038
DOI: 10.1093/auk/122.2.618