scholarly journals Fine-scale habitat use during the non-breeding season suggests that winter habitat does not limit breeding populations of a declining long-distance Palearctic migrant

2015 ◽  
Vol 46 (6) ◽  
pp. 622-633 ◽  
Author(s):  
Emma Blackburn ◽  
Will Cresswell
Keyword(s):  
Habitat Use ◽  
Breeding Season ◽  
Fine Scale ◽  
Long Distance ◽  
Winter Habitat ◽  
Breeding Populations

Seasonal differences in habitat use and fat reserves in an arctic muskrat population

1989 ◽  
Vol 67 (2) ◽  
pp. 305-313 ◽  
Author(s):  
Dennis E. Jelinski
Keyword(s):  
Habitat Use ◽  
Breeding Season ◽  
Discriminant Function ◽  
Function Analysis ◽  
Good Condition ◽  
Food Habit ◽  
Winter Habitat ◽  
Resource Defense ◽  
Fat Reserves ◽  
Access To Food

Differences in summer and winter habitat use by muskrats (Ondatra zibethicus) were studied in the Mackenzie River Delta, Northwest Territories, Canada. Quantitative data consisting of 11 habitat variables were obtained from 73 winter and 119 summer burrow sites. The single discriminant function derived from a discriminant function analysis of summer and winter burrow sites was strongly correlated with variables interpreted as describing food, cover, and overwinter survival of muskrats. During summer, muskrat burrows were closer to shallow water, on gentler slopes with greater cover, and occurred closer to stands of horsetail (Equisetum fluviatile) than in winter. Food habit analyses revealed that high-protein E. fluviatile was the most frequently consumed species in summer. Muskrats of both sexes were found to enter the breeding season in extremely good condition when judged on the basis of body fat; the costs of breeding, lactation, and resource defense are hypothesized to account for the low-fat condition noted at the onset of winter. Prior to winter, muskrats relocated to deep-water sites, possibly to maintain access to food and (or) forage on the energy-rich roots and rhizomes of submerged macrophytes. The change in habitat use, coupled with physiological adaptations to cold, is suggested to account for the winter recovery in fat reserves. These same reserves can be mobilized in spring at the onset of the metabolically demanding breeding season.

scholarly journals Late-winter habitat use by the Fisher, Pekania pennanti (Erxleben, 1777), in the Boreal Plains Ecozone of northwestern Saskatchewan, Canada

2014 ◽  
Vol 128 (3) ◽  
pp. 272 ◽  
Author(s):  
Gilbert Proulx
Keyword(s):  
Habitat Use ◽  
Deciduous Forest ◽  
Late Winter ◽  
Larix Laricina ◽  
Forest Stands ◽  
Habitat Types ◽  
Winter Habitat ◽  
Boreal Plains ◽  
Pekania Pennanti ◽  
Crown Closure

Late-winter habitat use by the Fisher, Pekania pennanti (Erxleben, 1777) in northwestern Saskatchewan was assessed in February 2009, 2011, and 2012. A total of 78 Fisher tracks were recorded over 60 300 m of snowshoe surveys. Fisher tracks were significantly less frequent than expected in Tamarack (Larix laricina [Du Roi] K. Koch) stands with > 40% crown closure and mainly 0–10 m trees (P < 0.05) and in open areas. Fishers used other habitat types equal to availability, including muskeg and coniferous, mixed, and deciduous forest stands. Maintaining mosaics of forest stands of different seral stages interspersed with muskeg would meet the late-winter habitat needs of Fishers in the Boreal Plains Ecozone of northwestern Saskatchewan.

Effects of commercial thinning on site occupancy and habitat use by spruce grouse in boreal Quebec

2011 ◽  
Vol 41 (3) ◽  
pp. 501-508 ◽  
Author(s):  
Ambroise Lycke ◽  
Louis Imbeau ◽  
Pierre Drapeau
Keyword(s):  
Habitat Use ◽  
Boreal Forest ◽  
Breeding Season ◽  
Vegetation Cover ◽  
Forest Cover ◽  
Site Occupancy ◽  
Lower Proportion ◽  
Large Mammals ◽  
Dense Vegetation ◽  
Commercial Thinning

Partial cuts are increasingly proposed to maintain habitats for species negatively affected by clearcutting, even if their benefits on nonpasserine birds and large mammals are still poorly documented. Our main objective was to evaluate effects of commercial thinning (CT) on spruce grouse ( Falcipennis canadensis L.), a game bird of the boreal forest. Because this species is known to be associated with a dense vegetation cover, we hypothesized that habitat use would be lower in treated sites. In spring 2006, we evaluated site occupancy in 94 forest stands (50 CT and 44 uncut stands) in Quebec by visiting each on three occasions during the breeding season (March–May). Additionally, during the molting period (May–July), we used radiotelemetry to monitor habitat use by 19 males. As compared with uncut stands, results show that a lower proportion of CTs were used in spring (39% versus 60%, after accounting for detection). During the molting period, CTs were also used less than expected according to their availability. The significant reduction of lateral and vertical forest cover in CT may explain these results. We conclude that even if CT is perceived beneficial for wildlife, it does not completely fulfill the needs of species associated with dense understory vegetation, such as spruce grouse.

Winter habitat use by red and roe deer in pine-dominated forest

2008 ◽  
Vol 255 (3-4) ◽  
pp. 468-475 ◽  
Author(s):  
J. Borkowski ◽  
J. Ukalska
Keyword(s):  
Habitat Use ◽  
Roe Deer ◽  
Winter Habitat

scholarly journals Fine-Scale Habitat Use of Reintroduced Black-Footed Ferrets on Prairie Dog Colonies in New Mexico

2012 ◽  
Vol 72 (2) ◽  
pp. 216-227 ◽  
Author(s):  
Jennifer G. Chipault ◽  
Dean E. Biggins ◽  
James K. Detling ◽  
Dustin H. Long ◽  
Robin M. Reich
Keyword(s):  
New Mexico ◽  
Habitat Use ◽  
Fine Scale ◽  
Prairie Dog
Sign in / Sign up

Export Citation Format

Share Document