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Keyword: Tamiasciurus hudsonicus

Test of the prey-base hypothesis to explain use of red squirrel midden sites by American martens

Publications Posted on: December 15, 2015
We tested the prey-base hypothesis to determine whether selection of red squirrel (Tamiasciurus hudsonicus) midden sites (cone caches) by American martens (Martes americana) for resting and denning could be attributed to greater abundance of small-mammal prey.

Evidence of autumn breeding in red squirrels, Tamiasciurus hudsonicus, in western Montana

Publications Posted on: December 15, 2015
Red Squirrels (Tamiasciurus hudsonicus) routinely breed biannually in eastern North America, but normally breed once annually in western North America. However, a postpartum estrus resulting in two breeding seasons per year has been documented within the maritime region of British Columbia.

Activity patterns of American martens, fishers, snowshoe hares, and red squirrels in westcentral Montana

Publications Posted on: December 15, 2015
We investigated winter activity patterns of American Martens, Martes americana, Snowshoe Hares, Lepus americanus, and Red Squirrels, Tamiasciurus hudsonicus, in westcentral Montana between November 1994 and March 1995 using dual-sensor remote cameras.

Short-term responses of red squirrels to prescribed burning in the interior Pacific Northwest, USA

Publications Posted on: February 04, 2010
We quantified changes in density of red squirrels (Tamiasciurus hudsonicus) in response to prescribed fire in mixed coniferous forests of Idaho and Washington, USA, using a Before-After-Control-Impact design. We found no evidence that low-severity prescribed fires affected density of red squirrels; we estimated the change in red squirrel densities due to prescribed fire as 20.15 squirrels/ha (95% CI 5 20.4050.105).

Potential for nest site competition between native and exotic tree squirrels

Publications Posted on: November 16, 2009
In communities where strong interspecific competition between native species is lacking, exotic and native species often exhibit intense resource competition resulting in decline of native populations. We examined the potential for interspecific competition for nest sites between co-occurring native Mt.

Avian nestling predation by endangered Mount Graham red squirrel

Publications Posted on: November 16, 2009
Studies using artificial nests or remote cameras have documented avian predation by red squirrels (Tamiasciurus hudsonicus). Although several direct observations of avian predation events are known in the northern range of the red squirrel distribution, no accounts have been reported in the southern portion. We observed predation upon a hermit thrush (Catharus guttatus) nestling by the Mount Graham red squirrel (T. h.

Expanded home ranges in a peripheral population: Space use by endangered Mt. Graham red squirrels

Publications Posted on: November 16, 2009
Peripheral populations are often of increased conservation value; however, knowledge of the ecological and evolutionary consequences of a peripheral location is poor. Spatial dynamics are often interpreted as strategies to maximize access to fitness-limiting resources. Red squirrels Tamiasciurus hudsonicus are territorial in western portions of their range and exhibit overlapping home ranges in eastern forests. Endangered Mt.

Does repeated human intrusion alter use of wildland sites by red squirrels? Multiyear experimental evidence

Publications Posted on: February 05, 2009
Intrusion by humans into wildlife habitat during recreational activities has become a worldwide conservation concern. Low levels of intrusion, which occur frequently in many wildlands, could influence use of sites by red squirrels (Tamiasciurus hudsonicus) and have important ramifications for conservation.