Add to ORKGGrassland and shrub/scrub breeding birds have experienced severe population declines since the beginning of the Breeding Bird Survey in 1966 (Sauer et al. 2007). Habitat loss and degradation are likely the primary causes of decline (Herkert 1994, Warner 1994, Johnson and Igl 2001). Partners in Flight (PIF) continental population objectives call for managers to increase populations by up to 100% for several of the species found in the Big Barrens, north-central Tennessee and south-central Kentucky, such as Dickcissel (Spiza americana), Henslow’s Sparrow (Ammodramus henslowii), and Prairie Warbler (Dendroica discolor; Rich et al. 2004). The quantity and quality of breeding season habitat are important in determining the future population tren...
were summarized from information in more than 4,000 published and unpublished papers. A range map is...
We investigated the impacts of rangeland management practices on the diversity, density, and nest su...
We investigated the impacts of rangeland management practices on the diversity, density, and nest su...
Over the last 40 years North American grassland bird populations have declined more than any other ...
Grassland birds have declined more than any other guild of birds in North America, largely due to lo...
Grassland bird populations have declined more than any other group of birds over the last 37 years, ...
As a group, grassland birds have been declining significantly since European settlement of the prair...
As a group, grassland birds have been declining significantly since European settlement of the prair...
Grassland bird populations have been declining due to increased habitat fragmentation, urbanization,...
Grassland bird populations have been declining due to increased habitat fragmentation, urbanization,...
INTRODUCTION The decline in numbers of Henslow’s Sparrows in North America (Sauer et al. 2001) is ge...
Master of ScienceDepartment of BiologyAlice BoyleMany North American bird populations are declining,...
INTRODUCTION The decline in numbers of Henslow’s Sparrows in North America (Sauer et al. 2001) is ge...
The North American Breeding Bird Survey (BBS) and other avian monitoring projects have been used as ...
INTRODUCTION The decline in numbers of Henslow’s Sparrows in North America (Sauer et al. 2001) is ge...
were summarized from information in more than 4,000 published and unpublished papers. A range map is...
We investigated the impacts of rangeland management practices on the diversity, density, and nest su...
We investigated the impacts of rangeland management practices on the diversity, density, and nest su...
Over the last 40 years North American grassland bird populations have declined more than any other ...
Grassland birds have declined more than any other guild of birds in North America, largely due to lo...
Grassland bird populations have declined more than any other group of birds over the last 37 years, ...
As a group, grassland birds have been declining significantly since European settlement of the prair...
As a group, grassland birds have been declining significantly since European settlement of the prair...
Grassland bird populations have been declining due to increased habitat fragmentation, urbanization,...
Grassland bird populations have been declining due to increased habitat fragmentation, urbanization,...
INTRODUCTION The decline in numbers of Henslow’s Sparrows in North America (Sauer et al. 2001) is ge...
Master of ScienceDepartment of BiologyAlice BoyleMany North American bird populations are declining,...
INTRODUCTION The decline in numbers of Henslow’s Sparrows in North America (Sauer et al. 2001) is ge...
The North American Breeding Bird Survey (BBS) and other avian monitoring projects have been used as ...
INTRODUCTION The decline in numbers of Henslow’s Sparrows in North America (Sauer et al. 2001) is ge...
were summarized from information in more than 4,000 published and unpublished papers. A range map is...
We investigated the impacts of rangeland management practices on the diversity, density, and nest su...
We investigated the impacts of rangeland management practices on the diversity, density, and nest su...