Roosting Ecology of Female Townsend's Big-Eared Bats (Corynorhinus townsendii) in South-Eastern British Columbia: Implications for Conservation Management

2010 ◽  
Vol 91 (2) ◽  
pp. 215-218 ◽  
Author(s):  
Aaron Reid ◽  
Thomas Hill ◽  
Ross Clarke ◽  
John Gwilliam ◽  
John Krebs
Keyword(s):  
British Columbia ◽  
Conservation Management ◽  
South Eastern ◽  
Corynorhinus Townsendii ◽  
Roosting Ecology

Roost-site selection and roosting ecology of forest-dwelling bats in southern British Columbia

1996 ◽  
Vol 74 (10) ◽  
pp. 1797-1805 ◽  
Author(s):  
Maarten J. Vonhof ◽  
Robert M. R. Barclay
Keyword(s):  
British Columbia ◽  
Ponderosa Pine ◽  
Tree Height ◽  
Canopy Closure ◽  
Ambient Conditions ◽  
White Pine ◽  
Roosting Ecology ◽  
Site Preferences ◽  
Roost Trees ◽  
Lasionycteris Noctivagans

We used radiotelemetry to examine the roost-site preferences of four species of tree-roosting bats (Eptesicus fuscus, Lasionycteris noctivagans, Myotis evotis, and M. volans) in southern British Columbia, Canada, by radio-tracking bats to their day roosts. We found a total of 21 roost trees: 14 roosts were beneath loose bark, 5 were in cavities excavated by woodpeckers, and 2 were in natural cavities. Entrance height increased with tree height, but roost entrances tended to be situated below the level of the canopy. Of the 22 tree and site variables examined, only 3 significantly discriminated between roost trees and available trees: tree height, distance to the nearest available tree, and percent canopy closure. Bats preferred tall trees associated with low percent canopy closure and a short distance to the nearest available tree. Bats roosted in western white pine, and to a lesser extent ponderosa pine and western larch, in intermediate stages of decay more often than would be expected at random. Bats switched roosts frequently. The distance between subsequent roost trees was short, suggesting a degree of fidelity to a particular group of trees or area of forest. The number of days of rain during the roosting period significantly influenced the number of days spent in a particular roost, and thus ambient conditions may restrict the frequency with which bats can switch roosts.

III.—Glaciation of High Points in the Southern Interior of British Columbia

1889 ◽  
Vol 6 (8) ◽  
pp. 350-352 ◽  
Author(s):  
George M. Dawson
Keyword(s):  
British Columbia ◽  
Field Work ◽  
The South ◽  
Plateau Region ◽  
Mountain Ranges ◽  
South Eastern ◽  
Northerly Direction ◽  
Geological Magazine

In an article published in the Geological Magazine for August, 1888, an outline was presented of some facts resulting from recent investigations on the glaciation of British Columbia and adjacent regions, bearing more particularly on the flow of ice in a northerly direction brought to light by explorations in the Yukon district, but touching also on the south-eastern extension of the great western glacier-mass of the continent, which I have proposed to name the Cordilleran glacier. Field-work carried out by me during the summer of 1888 has resulted in the accumulation of many new facts relating to the southern part of the area, which was at one time covered by the Cordilleran glacier, from which it would appear that it may ultimately be possible not only to trace the various stages in the recession of the main front of the great confluent glacier beneath which the interior or plateau region of British Columbia was buried, but even to follow the later stages of its decline as it became broken up into numerous local glaciers confined to the valleys of the several mountain ranges which limit the plateau.

scholarly journals Reviewer acknowledgements

2019 ◽  
Vol 2 (1) ◽  
pp. 106-107
Author(s):  
Editorial Team
Keyword(s):  
British Columbia ◽  
Human Rights ◽  
The Netherlands ◽  
Careful Attention ◽  
South Eastern ◽  
Norwegian School ◽  
University Of British Columbia ◽  
University College ◽  
University College London ◽  
Eastern Norway

The editors would like to thank the following colleagues for the time and careful attention given to manuscripts they reviewed for Volume 1 of HRER. Rebecca ADAMIUniversity of Stockholm, Sweden Paul BRACEYUniversity of Northampton, UK Kjersti BRATHAGENUniversity of South-Eastern Norway, Norway Cecilia DECARADanish Institute for Human Rights, Denmark Judith DUNKERLY-BEANOld Dominion University, USA Viola B. GEORGIUniversity of Hildesheim, Germany Carole HAHNEmory University, USA Brynja HALLDÓRSDÓTTIRUniversity of Iceland, Iceland Lisa HARTLEY Curtin University, Australia Lee JEROME Middlesex University, UK Claudia LENZ Norwegian School of Theology, Norway Hadi Strømmon LILE Østfold University College, Norway Anja MIHR Center on Governance though Human Rights, Germany Virginia MORROWUniversity of Oxford, UK Thomas NYGREN Uppsala University, Sweden Barbara OOMEN Roosevelt University College, The Netherlands Anatoli RAPOPORT Purdue University, USA Farzana SHAIN Keele University, UK Hugh STARKEY University College London, UK Sharon STEIN University of British Columbia, Canada

A NEW SPECIES OF BRACHYCYRTUS FROM BRITISH COLUMBIA (HYMEN.; ICHNEUMONIDAE)

1940 ◽  
Vol 72 (4) ◽  
pp. 85-86 ◽  
Author(s):  
G. Stuart Walley
Keyword(s):  
British Columbia ◽  
New Species ◽  
Forest Service ◽  
Adult Parasite ◽  
Forest Insect ◽  
South Eastern ◽  
Engelmann Spruce ◽  
Insect Survey ◽  
A New Species

It was with some surprise that the writer encountered a representative of this rare and, until recently, little known genus, from a locality in south-eastern British Columbia. The specimen in question is a female reared at Ottawa, by officers of the Forest Insect Survey of the Division of Entomology, Irom the cocoon of a Chrysopid beaten from Engelmann spruce, Aug. 26, 1938, by Mr. D. N. Ross of the British Columbia Forest Service, in the vicinity of Bayne's Lake, B. C. The adult parasite emerged in the laboratory, Feb. 20, 1939.

A 4000-Mile Flight Through North-Western Canada

Polar Record ◽  
1936 ◽  
Vol 2 (11) ◽  
pp. 53-55
Author(s):  
Charles Camsell
Keyword(s):  
British Columbia ◽  
Western Canada ◽  
South Eastern ◽  
Northern Regions ◽  
North Western ◽  
Mackenzie River

The aerial flight of some 4000 miles which commenced at Prince Rupert, B.C., and took me through northern British Columbia, south-eastern Yukon and the Mackenzie River district and ended at Edmonton, Alberta, was undertaken during the month of August, 1935, for the purpose of inspecting the work of several geological parties working in these northern regions.

Monthly adaptations of the Drought Code reveal nuanced fire–drought associations in montane forests with a mixed-severity fire regime

2019 ◽  
Vol 28 (6) ◽  
pp. 445 ◽  
Author(s):  
Raphaël D. Chavardès ◽  
Lori D. Daniels ◽  
Bianca N. I. Eskelson ◽  
Paul D. Pickell
Keyword(s):  
British Columbia ◽  
Fire Regime ◽  
Fire Severity ◽  
Fire Season ◽  
Fire Weather ◽  
Montane Forests ◽  
Fire Weather Index ◽  
Fire Scar ◽  
South Eastern ◽  
Drought Conditions

We compared three monthly adaptations of the daily Drought Code (DC) of Canada’s Fire Weather Index System and applied them to interpret drought conditions associated with historical fires in montane forests of south-eastern British Columbia. The three adaptations were compared with the monthly mean DC calculated from daily values for the Palliser fire-weather station. Two adaptations improved on the existing Monthly DC calculated from monthly climate data by (1) accounting for overwinter drying and an early start to the fire season, and (2) improving estimates of effective precipitation. Using a cross-dated fire-scar record from 20 sites in montane forests surrounding the Palliser station, we found significant fire–drought associations from June to August with all adaptations, and significant associations in April and May with the two new adaptations. Of the 17 fire years from 1901 to 2013, 6years had low initial drought conditions that increased late in the fire season, and 5 years had high drought conditions throughout the fire season. We conclude that variable drought within and among fire seasons influenced fire severity. Our findings provide a connection between modern drought indices used to rank fire danger and drought effects on the historical mixed-severity fire regime in montane forests of south-eastern British Columbia.

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