David W. Sample

TL;DR: This paper reviewed the literature on North American grassland bird species that is relevant to the following questions: 1) What is the area sensitivity, whereby the pattern of a species' occurrence and density increases with patch area (Robbins et al. 1989), has been invoked as an important issue in grassland-bird conservation.

TL;DR: In this article, the authors investigated the impact of an August harvest of switchgrass for bioenergy on community composition and abundance of Wisconsin grassland bird species of management concern and found that switchgrass harvesting in August resulted in changes in vegetation structure and bird species composition the following nesting season.

TL;DR: In this paper, the authors suggest a regional approach to ensure that energy crop production will proceed in an ecologically and economically sustainable way, and suggest that three types of agricultural land be targeted for perennial biomass energy crops: (1) highly erodible land; (2) wetlands presently converted to agricultural uses; and (3) marginal agricultural land in selected regions.

TL;DR: The authors investigated the association of grassland birds with field-and landscape-level habitat variables in south-central Wisconsin during 1985-1987 and found that only landscape variables were associated with the density of bobolink (Dolichonyx oryzivorus), eastern meadowlark (Sturnella magna) and all birds that were grassland species of management concern.

TL;DR: Impacts of removing rows of trees and shrubs that intersected grasslands on potential nest predators and the three most abundant grassland bird species are measured at sites in Wisconsin, U.S.A.