Rising temperatures in a Southcentral Alaska river have led to a hungrier population of invasive northern pike, a trend that could imperil native salmon and other fish species. A University of Alaska Fairbanks-led research team analyzed the stomach contents of northern pike caught by the U.S. Fish and Wildlife Service in the Deshka River […]
Legend had it that ravens followed wolves to fresh kills. A tracking study reveals a much more interesting scavenging strategy. When a wolf pack runs down its prey, the first on the scene is often the raven. Even before the predators have had time to dig in, the ravens are already in line, waiting […]
New study finds that the nutritional value of prey within a single species can widely vary, offering key insights for food web dynamics and ecosystem change The hunt is on and a predator finally zeroes in on its prey. The animal consumes the nutritious meal and moves on to forage for its next target. But […]
Scientists hope the new tool will help identify data gaps and the combination of factors that may be impacting the endangered whale population’s recovery. A key challenge for recovering endangered Cook Inlet beluga whales is understanding how the interplay between prey availability and human activities affect the health of individual animals and the overall population. […]