Dead wood is important to small mammals and is hypothesized to be used as travel paths. We evaluated the likelihood of different a priori models regarding sex- and season-specific differences and if quantity of wood in the environment influenced path selection of 41 Townsend's chipmunks (Tamias townsendii) in coniferous forests of western Oregon with the spool-and-line method using an information-theoretic approach. On average, 50% (SD = 4%) of the surficial portion of a chipmunk's path was associated with downed wood and 79% (SD = 10%) was on top of logs. Chipmunks disproportionately selected paths with downed wood relative to its availability and the model indicating that quantity of wood in the environment influenced path selection was 22.6 times more likely than the null model. At average wood densities (paths with 26% wood), a chipmunk was 3.0 times more likely to select locations with downed wood than locations without downed wood (95% confidence interval [95% CI] = 2.5–3.5). Furthermore, chipmunks selected wood that averaged 1.2 times larger in diameter than randomly available wood (95% CI = 1.1–1.3). Our findings document that Townsend's chipmunks preferentially use downed wood and we hypothesize that downed wood may influence fitness or survival of individual chipmunks.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.