Ruffed grouse brood habitat selection at multiple scales in Pennsylvania: implications for survival

2008 ◽  
Vol 86 (4) ◽  
pp. 329-337 ◽  
Author(s):  
John M. Tirpak ◽  
William M. Giuliano ◽  
C. Allan Miller
Keyword(s):  
Habitat Selection ◽  
Habitat Management ◽  
Multiple Scales ◽  
Deciduous Forest ◽  
Management Strategies ◽  
Ground Cover ◽  
Ruffed Grouse ◽  
Bonasa Umbellus ◽  
Utilization Distributions ◽  
Adequate Ground

Declines in ruffed grouse ( Bonasa umbellus (L., 1766)) populations in the central and southern Appalachians may be linked to low brood survival. Therefore, managing for high-quality brood habitat could improve grouse numbers. Understanding how brood habitat selection affects survival and the spatial scale at which this occurs is therefore fundamental to developing effective habitat management strategies. From 1999–2002, we monitored 38 broods for 5 weeks post hatch and estimated utilization distributions (n = 28), site-scale habitat use (n = 21), and daily survival rate (mean = 0.966, range = 0.920–0.997, and n = 19). Relative to available habitat, broods selected sites with greater herbaceous ground cover and higher small (<2.5 cm diameter at breast height, DBH) stem densities and landscapes containing higher proportions of road and young deciduous forest. Herbaceous ground cover provided arthropod prey and concealment from predators and was a primary factor driving habitat selection. High stem densities and early successional habitats provided increased security, but were only used if adequate ground cover was present. Broods strongly selected roads and experienced higher survival near edges. However, higher road densities were associated with lower survival at the landscape scale. This pattern reflects the differential scale at which grouse and their predators respond to edge.

Habitat selection by helmeted honeyeaters

1994 ◽  
Vol 21 (1) ◽  
pp. 53 ◽  
Author(s):  
JL Pearce ◽  
MA Burgman ◽  
DC Franklin
Keyword(s):  
Surface Water ◽  
Habitat Selection ◽  
Habitat Management ◽  
Foraging Behaviour ◽  
Nature Reserve ◽  
Riparian Forest ◽  
Management Strategies ◽  
Habitat Models ◽  
State Nature Reserve ◽  
State Nature

The realised niche of the helmeted honeyeater, in terms of the floristic and structural attributes of the vegetation, was determined using logistic discrimination. The vegetation was divided into two communities, Eucalyptus camphora swampland and E. viminalis-dominated riparian forest, based on differences observed in other studies on foraging behaviour within these two communities. The variables describing the realised niche of the helmeted honeyeater in the E. camphora community were a high bark index, a large number of E. camphora stems and the presence of surface water. The results for the E. viminalis community were less conclusive, but suggest that a deep eucalypt canopy may be important. These variables relate to the feeding and breeding biology of the helmeted honeyeater. Habitat models of this form will allow appropriate habitat management strategies for Yellingbo State Nature Reserve to be developed, as well as allow the suitability of potential helmeted honeyeater release or relocation sites to be assessed.

scholarly journals Predicting the Effects of Cerulean Warbler, Dendroica cerulea Management on Eastern Ontario Bird Species

2004 ◽  
Vol 118 (2) ◽  
pp. 229 ◽  
Author(s):  
Jason Jones ◽  
William J. McLeish ◽  
Raleigh J. Robertson
Keyword(s):  
Habitat Management ◽  
Deciduous Forest ◽  
Management Strategies ◽  
Bird Species ◽  
Single Species ◽  
Biodiversity Indicator ◽  
Umbrella Species ◽  
Dendroica Cerulea ◽  
Cerulean Warbler ◽  
Eastern Ontario

Single-species habitat management strategies are often undertaken without explicit consideration of their effects on the larger community. Here we explore the potential effects of managing eastern Ontario deciduous forests for the Cerulean Warbler (Dendroica cerulea) by examining its potential as a biodiversity indicator species and as an umbrella species. Our results indicate that the Cerulean Warbler would not be an effective biodiversity indicator, as its distribution across the studied landscape did not coincide with areas of high avian species richness. However, the Cerulean Warbler may be effective as an umbrella species for the maintenance of populations of other canopy-nesting species that require mature deciduous forest habitats. It is hoped that the conclusions reached in Ontario, while perhaps not directly transferable to all parts of the breeding range, encourage other Cerulean Warbler researchers to ask similar questions in their study areas.

scholarly journals Fire, land cover, and temperature drivers of bat activity in winter

Fire Ecology ◽  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Marcelo H. Jorge ◽  
Sara E. Sweeten ◽  
Michael C. True ◽  
Samuel R. Freeze ◽  
Michael J. Cherry ◽  
...  
Keyword(s):  
Land Cover ◽  
Habitat Management ◽  
Deciduous Forest ◽  
Pinus Palustris ◽  
Growing Season ◽  
Early Spring ◽  
Bat Activity ◽  
White Nose Syndrome ◽  
Dormant Season ◽  
Wind Energy Development

Abstract Background Understanding the effects of disturbance events, land cover, and weather on wildlife activity is fundamental to wildlife management. Currently, in North America, bats are of high conservation concern due to white-nose syndrome and wind-energy development impact, but the role of fire as a potential additional stressor has received less focus. Although limited, the vast majority of research on bats and fire in the southeastern United States has been conducted during the growing season, thereby creating data gaps for bats in the region relative to overwintering conditions, particularly for non-hibernating species. The longleaf pine (Pinus palustris Mill.) ecosystem is an archetypal fire-mediated ecosystem that has been the focus of landscape-level restoration in the Southeast. Although historically fires predominately occurred during the growing season in these systems, dormant-season fire is more widely utilized for easier application and control as a means of habitat management in the region. To assess the impacts of fire and environmental factors on bat activity on Camp Blanding Joint Training Center (CB) in northern Florida, USA, we deployed 34 acoustic detectors across CB and recorded data from 26 February to 3 April 2019, and from 10 December 2019 to 14 January 2020. Results We identified eight bat species native to the region as present at CB. Bat activity was related to the proximity of mesic habitats as well as the presence of pine or deciduous forest types, depending on species morphology (i.e., body size, wing-loading, and echolocation call frequency). Activity for all bat species was influenced positively by either time since fire or mean fire return interval. Conclusion Overall, our results suggested that fire use provides a diverse landscape pattern at CB that maintains mesic, deciduous habitat within the larger pine forest matrix, thereby supporting the diverse bat community at CB during the dormant season and early spring.

Trypanosoma ontarioensis n.sp. and T. paddae from Corvus brachyrhynchos brachyrhynchos in Ontario, Canada, with notes on the biology of T. ontarioensis n.sp.

1982 ◽  
Vol 60 (9) ◽  
pp. 2107-2115 ◽  
Author(s):  
Patrick T. K. Woo ◽  
Cheryl M. Bartlett
Keyword(s):  
Agar Medium ◽  
Gallus Domesticus ◽  
Blood Agar ◽  
Melopsittacus Undulatus ◽  
Ruffed Grouse ◽  
Bonasa Umbellus ◽  
Southern Ontario ◽  
Corvus Brachyrhynchos ◽  
Domestic Chicks ◽  
Serinus Canarius

Two morphologically distinct trypanosomes (Trypanosoma ontarioensis n.sp. and Trypanosoma paddae) were found by the haematocrit centrifuge technique in the blood of 53% (64 of 121) of Corvus brachyrhynchos brachyrhynchos wintering in southern Ontario. Trypanosoma ontarioensis n.sp. is a small trypanosome with subterminal kinetoplast. It is monomorphic and not host specific. It was readily cultured in diphasic blood-agar medium. Two-week cultures were infective and contained dividing sphaeromastigotes, epimastigotes, and trypomastigotes. Blood trypomastigotes were detected in low numbers in the blood of inoculated birds (Corvus brachyrhynchos brachyrhynchos, Bonasa umbellus, Gallus domesticus, Melopsittacus undulatus, and Serinus canarius) at 28 and 48 days postinfection. The crows, ruffed grouse, and domestic chicks were laboratory raised while the budgerigars and canaries were from pet stores. One canary that was further examined at 180, 360, 540, 730, and 910 days postinfection still had detectable numbers of trypanosomes in its blood.

Ruffed Grouse (Bonasa umbellus)

2000 ◽  
Author(s):  
Donald H. Rusch ◽  
Stephen Destefano ◽  
Michael C. Reynolds ◽  
David Lauten
Keyword(s):  
Ruffed Grouse ◽  
Bonasa Umbellus

ENDOGENOUS DEVELOPMENT AND PATHOGENICITY OF EIMERIA ANGUSTA IN THE RUFFED GROUSE, BONASA UMBELLUS

1984 ◽  
Vol 20 (2) ◽  
pp. 100-107
Author(s):  
Ian K. Barker ◽  
Allan Garbutt ◽  
Alex L. Middleton
Keyword(s):  
Endogenous Development ◽  
Ruffed Grouse ◽  
Bonasa Umbellus

scholarly journals Microhabitat of small mammals at ground and understorey levels in a deciduous, southern Atlantic Forest

2013 ◽  
Vol 85 (2) ◽  
pp. 727-736 ◽  
Author(s):  
GERUZA L. MELO ◽  
BARBARA MIOTTO ◽  
BRISA PERES ◽  
NILTON C. CACERES
Keyword(s):  
Habitat Selection ◽  
Small Mammals ◽  
Strong Evidence ◽  
Animal Species ◽  
Deciduous Forest ◽  
Distribution Patterns ◽  
Microhabitat Use ◽  
Southern Brazil ◽  
Different Types ◽  
Didelphis Albiventris

Each animal species selects specific microhabitats for protection, foraging, or micro-climate. To understand the distribution patterns of small mammals on the ground and in the understorey, we investigated the use of microhabitats by small mammals in a deciduous forest of southern Brazil. Ten trap stations with seven capture points were used to sample the following microhabitats: liana, fallen log, ground litter, terrestrial ferns, simple-trunk tree, forked tree, and Piper sp. shrubs. Seven field phases were conducted, each for eight consecutive days, from September 2006 through January 2008. Four species of rodents (Akodon montensis, Sooretamys angouya, Oligoryzomys nigripes and Mus musculus) and two species of marsupials (Didelphis albiventris and Gracilinanus microtarsus) were captured. Captured species presented significant differences on their microhabitat use (ANOVA, p = 0.003), particularly between ground and understorey sites. Akodon montensis selected positively terrestrial ferns and trunks, S. angouya selected lianas, D. albiventris selected fallen trunks and Piper sp., and G. microtarsus choose tree trunks and lianas. We demonstrated that the local small-mammal assemblage does select microhabitats, with different types of associations between species and habitats. Besides, there is a strong evidence of habitat selection in order to diminish predation.

Avian Haemoproteidae. 12. The haemoproteids of the grouse family Tetraonidae

1979 ◽  
Vol 57 (7) ◽  
pp. 1465-1472 ◽  
Author(s):  
Ellen M. White ◽  
Gordon F. Bennett
Keyword(s):  
Ruffed Grouse ◽  
Bonasa Umbellus

The haemoproteids of the grouse family Tetraonidae are reviewed. Haemoproteus stableri n.sp. is described from the ruffed grouse, Bonasa umbellus, from Montana. Haemoproteus rotundus Oliger, 1956 and H. canachites Fallis and Bennett, 1960, are declared synonyms of Haemoproteus mansoni Castellani and Chalmers, 1910.

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