Conservation Northwest

2015-CWMP-Remote-Camera-Field-Season-Report

Conservation Northwest protects and connects old-growth forests and other wild areas from the Washington Coast to the British Columbia Rockies, vital to a healthy future for us, our children, and wildlife. Since 1989, Conservation Northwest has worke

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35 Populations of less than 100 individuals are thought to inhabit northern-Washington state (Stinson 2001). Adult male lynx will travel long distances to seek appropriate habitat as a response to low prey abundance (Montgomery R. 2014). They will often range over an area that also includes areas used for human recreation opportunities if it provides suitable habitat for the snowshoe hare. Human activity in these areas is typically diurnal, the time of day when lynx are least active. The emigration of lynx, primarily adult males from southern Alberta and British Columbia populations into northern Washington, is important for the long-term regeneration of the region's population (Burdett C. 2007). Identifying connectivity of south-central BC Lynx populations with that of northern-central Washington populations will provide important information to provide clarity as to how to more effectively manage the populations (with regards to hunting and trapping, forest management practices, and the recreation industry) in a trans-boundary manner. Documenting the occurrence of lynx across wilderness areas and broad landscapes is important for their conservation and development of responsible land management practices (Squires et al. 2012). Lynx are cryptic in nature, live in remote areas, exhibit crepuscular activity, and appear in low density over large expanses of land. Studying their movements is very challenging as a result of these characteristics despite efforts with radio telemetry (Burdett et al. 2007). Snow-track surveys are a relatively economical, less disruptive way to document the presence of carnivores on the winter landscape. A recent study done by Squires et al. (2012) discovered that the presence of a lynx population can be determined within broad landscapes through 2 subsequent snow track surveys with 95-99% confidence. BC Resource Inventory Standards Committee (RISC) guidelines state that lynx snow tracking must be done 3 times in a winter, for 3 consecutive winters, or until positive ID is made (RISC 1999). The disadvantages of snow tracking to document the presence of lynx are the potential for misidentification and requirement of suitable snow- tracking conditions. RISC guidelines indicate 2 to 3 days following a minimum 2 cm snowfall for best results. Positive DNA identification by species is an important accompaniment to this type of survey because of the implications associated with lynx conservation on land management practices. Identification of individuals by DNA analysis will also provide information about the genetic connectivity of populations and identify isolated populations that may require specific management. Wildlife cameras and hair

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