Effects of trapping effort and trap placement on estimating abundance of Humboldt's flying squirrels.

ABSTRACT: Live trapping is a common tool used to assess demography of small mammals. However, live-trapping is often expensive and stressful to captured individuals. Thus, assessing the relative tradeoffs among study goals, project expenses, and animal well-being is necessary. Here, we evaluated how apparent bias and precision of estimates for apparent annual survival, abundance, capture probability, and recapture probability of Humboldt's flying squirrels (Glaucomys oregonensis) varied with the number of secondary trapping occasions. We used data from forested sites trapped on 12 consecutive occasions annually in the HJ Andrews Experimental Forest (9 sites, 6 years) and the Siuslaw National Forest (seven sites, three years) in Oregon. We used Huggins robust design models to estimate paramete

SUBMITTER: Weldy MJ 

PROVIDER: S-EPMC6778666 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature