Resources

Herbivores can be major drivers of environmental change, altering plant community structure and changing biodiversity through the amount and species of plants consumed. If natural predators can reduce herbivore numbers and/or alter herbivore foraging behavior, then predators may reduce herbivory … read more

Growth of ungulate populations is typically most sensitive to survival of neonates, which in turn is influenced by maternal nutritional condition and trade-offs in resource selection and avoidance of predators. We assessed whether resource use, multi-predator risk, maternal nutritional effects, … read more

Background: Predation and hunter harvest constitute the main mortality factors affecting the size and dynamics of many exploited populations. The re-colonization by wolves (Canis lupus) of the Scandinavian Peninsula may therefore substantially reduce hunter harvest of moose (Alces alces), the … read more

Each year, we conduct an aerial survey in northeastern Minnesota in an effort to monitor moose numbers (DelGiudice, 2017). While the objectives of this annual survey are to estimate moose numbers and demographics; since 2010, wolf and deer observations have … read more

Minnesota moose are some tough critters but research is showing that complex factors are combining to make their survival more and more precarious. Just how tough are moose? And how complex can the situation become for the largest member of … read more

After spending millions of dollars and tracking hundreds of moose with GPS collars, scientists have pinpointed the primary culprit behind the animal’s ever-shrinking numbers in Minnesota. It’s the deer. Parasites they carry into Minnesota’s North Woods have emerged as the … read more