15
Hoary marmot
Mule deer /White-tailed deer / Black-tailed deer
Moose
Porcupine
Raccoon
Striped Skunk/ Spotted Skunk
Snowshoe hare and smaller mammals (squirrels, rodents, American pika)
Livestock (cow and sheep)
Human (non-volunteer) includes: domestic dog with human, horse and rider, bicycle and vehicles
Domestic dog (no human presence recorded)
RESULTS AND DISCUSSION
During the 2018 monitoring season, volunteers collected data year-round with the majority of the cameras
deployed from May through October. Over the course of the season, CWMP project volunteers established and
maintained 36 survey areas with 81 sites. The following results cover all of the mammal species detected on our
camera traps, including all events involving priority species for the project as outlined above. The impacts of
livestock and human presence on wildlife are of significant conservation interest, and records of their presence
are also included here. Though our program expands knowledge of wildlife presence in Washington, limitations to
the breadth of our data do exist. Our data cannot ascertain species diversity—a measure of evenness of
distribution of different species, population size—or species absence. Rather, our data focuses on species
richness, the number of different species counted within an ecosystem or area, which has invaluable applications
to the conservation and management of rare and sensitive species in Washington. In addition to assessing species
richness, we assess the number of observed events of identified priority-level species per study area. For the
purposes of this project, an event is defined as any visit of a single animal (or group of animals belonging to the
same species) to a camera installation with no gap greater than five minutes between images.
Results for this year are organized by target species. The number of discrete remote camera installations at each
survey area and the total number of trap nights, or 24-hour monitoring periods, is presented below as an index of
relative survey effort in each area. This year we have added an overview of our program effort and percent of the
total for the entire project (Table 1, Figure 2).
Table 1. Total Trap nights for all target species survey areas in 2018.
Total Trap Nights CWMP – 2018
Grizzly Bear
549
I-90 Wildlife
1531
Wolf
3632
Wolverine
4405
Canada Lynx
778
Total Trap Nights 10895
