Ecological plasticity of denning chronology by American black bears and brown bears

Shedding of foot pads by black bears during denning.

Denning Ecology of Florida Black Bears in North-Central Florida

We studied the denning chronology, den type, and den-site characteristics of Ursus americanus oridanus (Florida Black Bear) in Ocala National Forest (ONF) and the adjacent residential area of Lynne, FL. We monitored 35 radio-collared females for 62 den years from 1999 through 2003. Den entry dates did not differ between parturient females (females that gave birth to cubs during the winter) and ...

Characteristics of Nonsport Mortalities to Brown and Black Bears and Human Injuries from Bears in Alaska

We examined the reasons bears are reported killed in defense of life or property (DLP) in Alaska as an index to causes and frequency of conflicts between humans and bears, and compared the sex and age composition of DLP kills with that of sport-killed bears. Data came from standardized questionnaires filled out by persons shooting the bears. Numbers of sport-killed brown bears (Ursus arctos) an...

A Comparison of Genetic Diversity in North American Brown Bears

To determine if threatened brown bear (Ursus arctos) populations of Montana and Wyoming have lower levels of genetic variation than other North American populations, we examined mitochondrial DNA (mtDNA) and nuclear microsatellite DNA diversity in 220 brown bears from 5 areas: Kodiak Island, Alaska; Kluane National Park, Canada; Eastern Slope of the Rockies (East Slope), Canada; Yellowstone eco...

High capacity implantable data recorders: system design and experience in canines and Denning black bears.

BACKGROUND Implantable medical devices have increasingly large capacities for storing patient data as a diagnostic aid and to allow patient monitoring. Although these devices can store a significant amount of data, an increased ability for data storage was required for chronic monitoring in recent physiological studies. METHOD OF APPROACH Novel high capacity implantable data recorders were de...