Wildlife

URBANA, Ill. – Deep in an Indiana forest, a team of scientists skulked atop hillsides after dark. Carrying radios and antennas, they fanned out, positioning themselves on opposite ridges to wait and listen. Their quarry? Endangered Indiana bats and threatened northern long-eared bats.

URBANA, Ill. – Once aquatic invasive species establish, they typically refuse to budge. That’s why it’s critical to prevent invasive quagga mussels, Eurasian watermilfoil, and other bad actors from getting established in the first place.

CHAMPAIGN, Ill. — In a study of crayfish in the Current River in southeastern Missouri, researchers discovered – almost by chance – that the virile crayfish, Faxonius virilis, was interbreeding with a native crayfish, potentially altering the native’s genetics, life history and ecology. Reported in the journal Aquatic Invasions, the study highlights the difficulty of detecting some of the consequences of biological invasions, the researchers say.

Read more from the Illinois News Bureau.

URBANA, Ill. – In many North American lakes, a tiny clawed creature has become a big bully. The invasive rusty crayfish roams lakebeds, snapping up snails, bivalves, and water plants, cutting off food supplies for native crayfish and other animals. And when they’re feeling saucy, some mount daring raids on fish eggs, reducing sport-fish populations.

URBANA, Ill. -- Dozens of online videos document an unusual behavior among tufted titmice and their closest bird kin. A bird will land on an unsuspecting mammal and, cautiously and stealthily, pluck out some of its hair.

An hour before the sun goes down, my colleagues and I arrive at our site: a human-made pond in the middle of the forest. The high-pitched croaking of Cope's gray treefrogs greets us as we get out of our truck. Surrounded by trees and full of salamanders, these ponds are an essential water resource for our forest-dependent bats. We do a brief survey of the site, then set up our mist nets around the pond’s perimeter. We’re hoping to catch our target species – the Indiana bat, Myotis sodalis.

URBANA, Ill. -- Today, the Sumatran rhinoceros (Dicerorhinus sumatrensis) is critically endangered, with fewer than 100 individuals surviving in Indonesia on the islands of Sumatra and Borneo. To ensure survival of the threatened species, accurate censusing is necessary to determine the genetic diversity of remaining populations for conservation and management plans. 

URBANA, Ill. – Ever thought about buying or building a bat box to help bats? Think carefully about the design and where you put it, University of Illinois researchers say.

Here’s why: Bats and their pups can overheat and die in poorly designed or placed bat boxes, and in a warming climate, it could happen more often.

CHAMPAIGN, Ill. — In 1533, the Bom Jesus – a Portuguese trading vessel carrying 40 tons of cargo including gold, silver, copper and more than 100 elephant tusks – sank off the coast of Africa near present-day Namibia. The wreck was found in 2008, and Department of Animal Sciences researchers say they now have determined the source of much of the ivory recovered from the ship.

Read more from the Illinois News Bureau.

URBANA, Ill. – Ashli Trudeau wrapped her hand around the little bird ever so gently, carefully following instructions to keep the American Goldfinch safe. She could feel the bird’s tiny feathery heart racing against her fingers, and her own skipped a beat.

“Its feathers were one of the softest things I have ever felt,” she recalls. “I only held the bird for 10 or 15 seconds, but that memory will stay with me forever.”