Results 51 to 60 of about 59,240 (208)

Meadow birds in Sweden – population trends, effects of restoration and management [PDF]

open access: yes, 2010
The area of Swedish wet meadows has decreased drastically during the last century due to cultivation and abandonment. During the same time the meadow bird fauna have changed considerably.
Berg, Åke, Gustafson, Tomas
core  

Demography and site fidelity of a grassland bird, the Henslow's Sparrow, in powerline right-of-way habitat

open access: yesJournal of Field Ornithology, 2022
Grassland birds are among the fastest declining avian species in North America, primarily due to habitat loss. In the southeastern United States, much grassland and open savanna habitat has been converted to timber production or agriculture, neither of ...
Elizabeth A. Hunter   +2 more
doaj  

Additionality in Grassland Easements to Provide Migratory Bird Habitat in the Northern Plains

open access: yesJournal of Agricultural and Resource Economics, 2017
Native grassland in the Prairie Pothole Region (PPR) is important habitat for migratory birds, particularly ducks. Much of this grassland is at risk for conversion to cropland. Permanent easements, managed by the U.S.
Roger Claassen   +6 more
doaj   +1 more source

Effects of urbanisation and landscape heterogeneity mediated by feeding guild and body size in a community of coprophilous beetles [PDF]

open access: yes, 2020
Although the impacts of urbanisation on biodiversity are well studied, the precise response of some invertebrate groups remains poorly known. Dung-associated beetles are little studied in an urban context, especially in temperate regions.
Foster, Christopher W.   +3 more
core   +1 more source

Bird Population Changes Following the Establishment of a Diverse Stand of Woody Plants in a Former Crop Field in North Dakota, 1975– 2015 [PDF]

open access: yes, 2018
Changes in the coverage of trees and shrubs on the North Dakota landscape since Euro- American settlement have likely had a pronounced impact on bird species that favor woody vegetation.
Igl, Lawrence D.   +2 more
core   +1 more source

Narrowness of habitat selection in woodland and grassland birds

open access: yesAvian Conservation and Ecology, 2019
Conservationists have long been concerned about population declines among both woodland and grassland birds, especially those that require extensive areas of a preferred habitat type and avoid mixed habitats.
Mary Ann Cunningham, Douglas H. Johnson
doaj  

Conservation of grassland birds in North America: understanding ecological processes in different regions [PDF]

open access: yes, 2007
Many species of birds that depend on grassland or savanna habitats have shown substantial overall population declines in North America. To understand the causes of these declines, we examined the habitat requirements of birds in six types of grassland in
Askins, Robert A.   +6 more
core   +1 more source

Home ranges and hatching success of threatened Eurasian curlew in north-eastern Europe relates to habitat type: Natural vs. agricultural landscapes

open access: yesGlobal Ecology and Conservation
Farmland birds are among the most threatened species in Europe, largely as a result of the intensification of agriculture leading to widespread biodiversity losses.
Pierrick Bocher   +13 more
doaj   +1 more source

Bird community patterns in sub–Mediterranean pastures: the effects of shrub cover and grazing intensity

open access: yesAnimal Biodiversity and Conservation, 2011
Shrubs are widely considered a threat to grassland biodiversity. We investigated the effects of shrub cover and grazing intensity on bird communities in sub–Mediterranean pastures in Bulgaria.
S. C. Nikolov   +3 more
doaj   +1 more source

Elm Farm Research Centre Bulletin with Technical Updates from the Organic Advisory Service 80 [PDF]

open access: yes, 2005
A collection of technical, policy and research articles on organic food and food ...
Deane, Tim   +7 more
core  

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