Wildlife

How do wildlife researchers know when an endangered population is sick? They can detect infectious microbes in animal waste, but the presence of a microbe doesn’t always equate to impactful symptomatic infections. In a new study, University of Illinois Urbana-Champaign researchers used advanced molecular tools to survey the health status of endangered Indiana bats, identifying microbiome changes resulting from parasitic infections.

Each spring, roughly 3.5 billion wild birds migrate from their warm winter havens to their breeding grounds across North America, eating insects, distributing plant seeds and providing a variety of other ecosystem services to stopping sites along the way. Some also carry diseases like avian influenza, a worry for agricultural, environmental and public health authorities. University of Illinois Urbana-Champaign professor of natural resources and environmental sciences Michael P.

The night sky teems with migrating songbirds, aloft in their millions following routes etched in evolutionary time. But those flight paths may not be entirely innate, according to new research led by the University of Illinois Urbana-Champaign. Evidence from over 18,300 hours of recorded flight calls suggests songbirds may “talk” to other species as they migrate, forming social connections and — just maybe — exchanging information about the journey.

Devin Edmonds isn’t like most amphibian hobbyists. For one thing, he’s now a trained herpetologist, studying frogs and turtles as a doctoral student at the University of Illinois Urbana-Champaign. But as an amateur back in 2006, he did something bold for the love of frogs that changed the trajectory of his life, not to mention the frogs’. 

If you’re a crayfish, location is everything. Here in North America, times are tough for the mini crustaceans. Habitat destruction, damming, and pollution have decimated local populations, such that many species are in dire need of help. But when some of the same species were exported to Europe, they found a much more favorable environment and are thriving. A little too much — American expats bully European crayfish and spread disease, driving many local species to the brink.

Jordyn Chace is a huge fan of classic murder mysteries. As a geneticist and wildlife biologist, she considers herself an investigator.

But instead of solving human crimes, she uncovers clues that may help contribute to the recovery of a once-common North American mammal: the little brown bat, Myotis lucifugus, a species now on the brink of extinction.

Invasive silver carp have been spreading throughout the Mississippi River Basin since their introduction a half-century ago. Yet, try as they might, the fish have not advanced beyond a particular stretch of the Illinois River north of Kankakee. Research from the University of Illinois Urbana-Champaign shows the fish are likely avoiding contaminants from the Chicago Area Waterway, which flows south before petering out around Kankakee. 

Changing precipitation patterns in the Neotropics, one of Earth’s most biodiverse regions, could threaten two-thirds of the area’s bird species by the year 2100 if climate change goes unchecked, according to new research led by the University of Illinois Urbana-Champaign and George Mason University. This would represent a dramatic loss, as the region is home to 30% of all bird species globally. 

Elephant conservation is a major priority in southern Africa, but habitat loss and urbanization mean the far-ranging pachyderms are increasingly restricted to protected areas like game reserves. The risk? Contained populations could become genetically isolated over time, making elephants more vulnerable to disease and environmental change. 

Domesticated animals play a prominent role in our society, with two-thirds of American families enjoying the companionship of pets and many others relying on animal products for their nutritional needs. But the process of domestication remains a bit of a mystery. Convincing wild animals they are safe enough to coexist and mate in enclosures and in close proximity to humans and other animals is no small feat. What does it take behaviorally and genetically for that to happen?