Interdisciplinary problem solving workshops for grizzly bear conservation in Banff National Park, Canada

2009 ◽  
Vol 42 (2) ◽  
pp. 163-187 ◽  
Author(s):  
Murray B. Rutherford ◽  
Michael L. Gibeau ◽  
Susan G. Clark ◽  
Emily C. Chamberlain
Keyword(s):  
Problem Solving ◽  
National Park ◽  
Grizzly Bear ◽  
Banff National Park ◽  
Interdisciplinary Problem Solving

GRIZZLY BEAR DEMOGRAPHICS IN AND AROUND BANFF NATIONAL PARK AND KANANASKIS COUNTRY, ALBERTA

2005 ◽  
Vol 69 (1) ◽  
pp. 277-297 ◽  
Author(s):  
DAVID L. GARSHELIS ◽  
MICHAEL L. GIBEAU ◽  
STEPHEN HERRERO
Keyword(s):  
National Park ◽  
Grizzly Bear ◽  
Banff National Park

Courtship and use of mating areas by grizzly bears in the Front Ranges of Banff National Park, Alberta

1990 ◽  
Vol 68 (12) ◽  
pp. 2695-2697 ◽  
Author(s):  
David Hamer ◽  
Stephen Herrero
Keyword(s):  
Food Intake ◽  
National Park ◽  
Ursus Arctos ◽  
Mating Behaviour ◽  
Grizzly Bears ◽  
Grizzly Bear ◽  
Single Observation ◽  
Banff National Park ◽  
Feeding Habitat ◽  
Male Vigour

In five of six observations of courting grizzly (brown) bears (Ursus arctos), pairs were isolated on a summit or upper-elevation ridge where the male repeatedly blocked the female's descent. These observations substantiate an earlier single observation of this mating behaviour. Similar isolation of mating grizzly bears on summits or ridges has not been reported elsewhere in North America. The habitat of the mating areas is described. The areas were not grizzly bear feeding habitat. Food intake evidently was reduced during the period of isolation. These observations are interpreted as male sequestering of an oestrus female and female testing of male vigour.

scholarly journals Excavation of Red Squirrel (Tamiasciurus hudsonicus) Middens by Bears (Ursus spp.) in Limber Pine (Pinus flexilis) Habitat in Banff National Park, Alberta

2017 ◽  
Vol 130 (4) ◽  
pp. 281 ◽  
Author(s):  
David Hamer
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Habitat Characteristics ◽  
Tamiasciurus Hudsonicus ◽  
Red Squirrel ◽  
Limber Pine ◽  
Banff National Park ◽  
Pine Stands ◽  
Study Sites ◽  
Pinus Spp

Bears (Ursus spp.) in North America eat the seeds of several pines (Pinus spp.), including Limber Pine (P. flexilis E. James). Information on use of Limber Pine in Canada is limited to a report of three bear scats containing pine seeds found in Limber Pine stands of southwestern Alberta. After my preliminary fieldwork in Banff National Park revealed that bears were eating seeds of Limber Pine there, I conducted a field study in 2014–2015 to assess this use. Because bears typically obtain pine seeds from cone caches (middens) made by Red Squirrels (Tamiasciurus hudsonicus), I described the abundance, habitat characteristics, and use by bears of Red Squirrel middens in and adjacent to Limber Pine stands at six study sites. On Bow River escarpments, I found abundant Limber Pines (basal area 1–9 m2/ha) and middens (0.8 middens/ha, standard deviation [SD] 0.2). Of 24 middens, 13 (54%) had been excavated by bears, and three bear scats composed of pine seeds were found beside middens. Although Limber Pines occurred on steep, xeric, windswept slopes (mean 28°, SD 3), middens occurred on moderate slopes (mean 12°, SD 3) in escarpment gullies and at the toe of slopes in forests of other species, particularly Douglas-fir (Pseudotsuga menziesii). At the five other study sites, I found little or no use of Limber Pine seeds by bears, suggesting that Limber Pine habitat may be little used by bears unless the pines are interspersed with (non-Limber Pine) habitat with greater forest cover and less-steep slopes where squirrels establish middens. These observations provide managers with an additional piece of information regarding potential drivers of bear activity in the human-dominated landscape of Banff National Park’s lower Bow Valley.

scholarly journals A Comparison of Fire Regimes and Stand Dynamics in Whitebark Pine (Pinus albicaulis) Communities in the Greater Yellowstone Ecosystem

2003 ◽  
Vol 27 ◽  
pp. 123-128
Author(s):  
William Romme ◽  
James Walsh
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Fire Regime ◽  
Fire Regimes ◽  
Greater Yellowstone Ecosystem ◽  
Past Century ◽  
Grizzly Bear ◽  
Pinus Albicaulis ◽  
Whitebark Pine ◽  
Greater Yellowstone

Whitebark pine (Pinus albicaulis) is a keystone species of upper subalpine ecosystems (Tomback et al. 2001), and is especially important in the high-elevation ecosystems of the northern Rocky Mountains (Arno and Hoff 1989). Its seeds are an essential food source for the endangered grizzly bear (Ursus arctos horribilis), particularly in the autumn, prior to winter denning (Mattson and Jonkel 1990, Mattson and Reinhart 1990, Mattson et al. 1992). In the Greater Yellowstone Ecosystem (GYE), biologists have concluded that the fate of grizzlies is intrinsically linked to the health of the whitebark pine communities found in and around Yellowstone National Park (YNP) (Mattson and Merrill 2002). Over the past century, however, whitebark pine has severely declined throughout much of its range as a result of an introduced fungus, white pine blister rust (Cronartium ribicola) (Hoff and Hagle 1990, Smith and Hoffman 2000, McDonald and Hoff 2001), native pine beetle (Dendroctonus ponderosae) infestations (Bartos and Gibson 1990, Kendall and Keane 2001), and, perhaps in some locations, successional replacement related to fire exclusion and fire suppression (Amo 2001). The most common historical whitebark pine ftre regimes are "stand-replacement", and "mixed­ severity" regimes (Morgan et al. 1994, Arno 2000, Arno and Allison-Bunnell2002). In the GYE, mixed-severity ftre regimes have been documented in whitebark pine forests in the Shoshone National forest NW of Cody, WY (Morgan and Bunting 1990), and in NE Yellowstone National Park (Barrett 1994). In Western Montana and Idaho, mixed fire regimes have been documented in whitebark pine communities in the Bob Marshall Wilderness (Keane et al. 1994), Selway-Bitterroot Wilderness (Brown et al. 1994), and the West Bighole Range (Murray et al.1998). Mattson and Reinhart (1990) found a stand­replacing fire regime on the Mount Washburn Massif, within Yellowstone National Park.

Elements that promote highway crossing structure use by small mammals in Banff National Park

2004 ◽  
Vol 41 (1) ◽  
pp. 82-93 ◽  
Author(s):  
Wayne McDonald ◽  
Colleen Cassady St Clair
Keyword(s):  
Small Mammals ◽  
National Park ◽  
Banff National Park
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