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1. Change in the sex ratio of the Finnish capercaillie Tetrao urogallus population

Author:
Helle, Pekka; Kurki, Sami; Lindén, Harto
Source:
Wildlife biology 1999 v.5 no.1 pp. 25-31
ISSN:
0909-6396
Subject:
grouse,   etc   ; Tetrao urogallus; adults; agricultural land; censuses; chicks; females; forests; geographical variation; landscapes; males; mammals; mortality; predation; predators; sex ratio; Finland; Russia; Scandinavia;     Show all 19 Subjects
Abstract:
... Earlier reports from Fennoscandia and Russia have shown that among adult capercaillies the proportion of females is 60–65%, mainly as a consequence of high mortality of male chicks during their first months of life. The Finnish August censuses of grouse (1964–1988) show that the percentage of female capercaillie has remained unchanged at about 60–65% in northern and eastern Finland. Over the same ...
DOI:
10.2981/wlb.1999.005

2. Forest expansion in Scotland and its potential effects on black grouse Tetrao tetrix conservation

Author:
White, Patrick J.C.; Warren, Philip; Baines, David
Source:
Forest ecology and management 2013 v.308 pp. 145-152
ISSN:
0378-1127
Subject:
grouse,   etc   ; Tetrao; agricultural land; forest habitats; forestry; forests; heathlands; issues and policy; planting; treeline; Scotland;     Show all 11 Subjects
Abstract:
... Increasing forest cover has been the policy of various countries in recent decades. The Scottish government aims to increase national forest cover from 18% to 25% by 2050. Mid-altitude upland areas above farmland and below the natural tree line will be targeted for planting, which could impact black grouse Tetrao tetrix, a species of conservation concern which is most abundant in this zone. We use ...
DOI:
10.1016/j.foreco.2013.07.038

3. Historic landscape change and habitat loss: the case of black grouse in Lower Saxony, Germany

Author:
Ludwig, Tobias; Storch, Ilse; Graf, Roland F.
Source:
Landscape ecology 2009 v.24 no.4 pp. 533-546
ISSN:
0921-2973
Subject:
grouse,   etc   ; agricultural land; habitat destruction; habitats; land cover; land use; landscapes; models; Central European region; Germany;     Show all 10 Subjects
Abstract:
... The declines of many specialist bird species in the agricultural landscapes of Central Europe have resulted in small and isolated populations. In the case of the black grouse, a ground-nesting bird species with large spatial requirements, empiric evidence about underlying landscape changes is scarce. In this study, we examined land cover and land cover changes in a farmland-forest mosaic in easter ...
DOI:
10.1007/s10980-009-9330-3

4. Landscape fragmentation and forest composition effects on grouse breeding success in boreal forests

Author:
Kurki, Sami; Nikula, Ari; Helle, Pekka; Lindén, Harto
Source:
Ecology 2000 v.81 no.7 pp. 1985-1997
ISSN:
0012-9658
Subject:
grouse,   etc   ; Lyrurus tetrix; Tetrao urogallus; agricultural land; boreal forests; breeding season; censuses; clearcutting; correlation; geographic information systems; habitat fragmentation; hens; landscapes; nesting; predation; predators; reproductive success; summer; wildlife; Finland; Scandinavia;     Show all 21 Subjects
Abstract:
... We examined the breeding success of forest grouse in relation to anthropogenic forest fragmentation in Finland. Employing Geographic Information Systems (GIS) and grouse data derived from Finnish wildlife triangle censuses conducted during 1989–1994, we combined the locations of 2267 Black Grouse (Tetrao tetrix) and 1060 Capercaillie (T. urogallus) females after the breeding season in mid‐August w ...
DOI:
10.1890/0012-9658(2000)081[1985:LFAFCE]2.0.CO;2

5. Numerical and functional responses of Common Buzzards Buteo buteo to prey abundance on a Scottish grouse moor

Author:
Francksen, Richard M.; Whittingham, Mark J.; Ludwig, Sonja C.; Roos, Staffan; Baines, David
Source:
Ibis 2017 v.159 no.3 pp. 541-553
ISSN:
0019-1019
Subject:
grouse,   etc   ; Buteo buteo; Lagopus lagopus scoticus; Microtus agrestis; agricultural land; breeding; diet; foraging; habitats; heathlands; ingestion; landscapes; predation; predators; prediction; reproductive success; voles; Scotland;     Show all 18 Subjects
Abstract:
... Predators will often respond to reductions in preferred prey by switching to alternative prey resources. However, this may not apply to all alternative prey groups in patchy landscapes. We investigated the demographic and aggregative numerical and functional responses of Common Buzzards Buteo buteo in relation to variations in prey abundance on a moor managed for Red Grouse Lagopus lagopus scotica ...
DOI:
10.1111/ibi.12471

6. Occurrence of hazel grouse Bonasa bonasia in a heavily human-impacted landscape near the Changbai Mountains, northeastern China

Author:
Sun, Yue-Hua; Piao, Zheng-Ji; Swenson, Jon E.
Source:
Wildlife biology 2003 v.9 no.4 pp. 371-375
ISSN:
0909-6396
Subject:
grouse,   etc   ; Tetrastes bonasia; agricultural land; autumn; flocks; forests; habitat fragmentation; habitats; landscapes; mountains; planting; probability; trees; winter; China; Europe;     Show all 16 Subjects
Abstract:
... The occurrence of hazel grouse Bonasa bonasia in forest patches in a heavily human-impacted landscape with a matrix dominated by agricultural fields in northeastern China was documented four times during autumn and spring 2000–2002. The occurrence of hazel grouse in fragmented landscapes in Europe is influenced by patch isolation, size and composition. In China, we found that patch composition and ...
DOI:
10.2981/wlb.2003.027