Geology topics
P.A. Jordan
Publications and source records attributed to P.A. Jordan.
An overview of a habitat suitability index model for moose: Lake Superior region
A three-day workshop was held to develop a model for evaluation of moose habitat in the Lake Superior region. The ultimate goal of the workshop was to provide planning tools to enhance habitat management for moose and maximize the integration of those management objectives with silvicultural goals. An abstract of the models resulting from the workshop is presented and model validation concepts are discussed.
Relating wolf scat content to prey consumed
In 9 trials, captive wolves ( Canis lupus ) were fed prey varying in size from snowshoe hares ( Lepus americanus ) to adult deer ( Odocoileus virginianus ), and the resulting scats were counted. Field-collectible scats were distinguished from liquid, non-collectible stools. I n collectible scats, the remains of small prey occurred in greater proportion relative to the prey's weight, and in lesser proportion relative to the prey's numbers, than did the remains of larger prey. A regression equation with an excellent, fit to the data (r2 = 0.97) was derived to estimate the weight of prey eaten per collectible scat for any prey. With this information and average prey weights, the relative numbers of different prey eaten also can be calculated.