EDUCATION:
B.S. in Natural
Science from the University of Puget Sound, 1999
PROJECT:
A comparative analysis of the affects
of road densities, hunting pressure, and management strategies
on the movement and behavior of black bears
in Northern Idaho
Objectives:
Over the course of two years, we will aim to deploy GPS collars on up to 25
individual bears throughout the study area. Data from these collars will
be retrieved from denned bears, and then analyzed in a GIS framework. By
combining our data from the Coeur d’Alenes with data previously collected
in the Purcells (Lewis et al. in press), we will look at the affects of varying
road density, volume of use, and hunting practices on black bears. To supplement
the four years of GPS data that our study combined with the Purcell study
will provide, we will deploy traffic counters throughout both studies during
spring and fall hunting seasons, as well as the summer pursuit season. In
addition, we will conduct phone and/or mail surveys of licensed bear hunters
in both areas, in an effort to determine amount of hunting pressure in each
area, as well as method of hunting used. In the Coeur d’Alenes, we
will also look to get an estimate of number of bears both harvested and pursued
with the use of hounds. This coalescence of information will enable us to
more effectively asses the impacts of roads, hunting pressure, and hunting
techniques on black bears within these areas.
Progress:
From June 1 through August 8, 2007, we had between 15 and 29 trap sites open
at any given time throughout the study area, resulting in a total of 32 black
bear captures (18 males and 14 females). Among these, 27 individual black
bears were captured, consisting of 13 females and 14 males. For the purpose
of collaring bears, we had a minimum weight requirement of 70 pounds. For
males, we collared only animals that weighed at least 130 pounds, and were
estimated to be at least five years old. Given these requirements, a total
18 collars were placed on black bears (15 GPS and three VHF) this summer.
Eight GPS and two VHF collars were placed on females, while seven GPS collars
and one VHF collar placed on males. VHF collars were used on one smaller
male, and on females after all GPS collars had been deployed. |