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Posts tagged: National Wildlife Research Center

Rabies and Vampire Bats

A vampire bat in Mexico

A vampire bat in Mexico. Photo by Luis Lecuna, USDA APHIS, International Services, Mexico.

All this month we will be taking a look at what a changing climate means to Agriculture. For APHIS, changes in environmental conditions will increase the likelihood of shifts in the distribution and nature of current domestic diseases, invasive species and agricultural pests.  These changes will likely influence the dynamics of invasion and establishment of these diseases and pests, and therefore much of APHIS’ work. Understanding and adapting to these changes is therefore critical to meeting our mission.

Vampire bats rank high on the list of animals that scare us the most. Spooky Halloween tales of their blood-sucking, nocturnal, and secretive habits have likely led to their bad reputation. The fact that some also carry and spread the deadly rabies virus doesn’t help.

The common vampire bat feeds on the blood of Central and South American wildlife and livestock. They also sometimes bite and feed on the blood of people. Recently, vampire bats have been documented within 35 miles of the Texas border. This has caused concern and speculation about the potential movement of vampire bats to areas within the United States as a result of rising global temperatures. To gain a better understanding of the likelihood of such movement, USDA-APHIS geneticist Dr. Toni Piaggio with the Wildlife Services National Wildlife Research Center partnered with U.S. Geological Survey scientist Dr. Mark Hayes to analyze and map the potential distribution of vampire bats under various climate scenarios. Read more »

The Little-Known Threat to Wild Turkeys

Turkeys in Texas engaging in courting

Turkeys in Texas engaging in courting before laying eggs, which are increasingly at risk from feral swine. Image: U.S. Fish and Wildlife Service.

Spring brings new life to the fields and forests and wild turkeys are one of the most interesting spectacles this time of year. Male turkeys gobble and strut to attract the attention of hen turkeys. Hens, in turn, go off and lay their eggs- one egg each day until the clutch is complete and the hens then begin incubation.

Unfortunately, this spring more than ever, wild turkeys across the U.S. are facing an increasing threat from a new and rapidly expanding population of nest predators…feral swine. Feral swine, also known as wild pigs, feral hogs, and wild boars, are not native to North America and are the descendants of domestic swine which either escaped or were liberated. In some cases, feral swine are intentionally released to create new hunting opportunities. But these opportunities come at the expense of other wildlife, including ground nesting birds such as the wild turkey. Feral swine are highly adaptable and can learn to seek out turkey nests even before the hen starts incubation, consuming the eggs when left unprotected. When a partially completed clutch is depredated, the hen is forced to start over, depleting vital reserves within herself as well as risking lower nest success and chick survival. Read more »

Brown Tree Snake Research Wins DoD’s 2015 Resource Conservation Project of the Year

Brown tree snake in grass

USDA Wildlife Services research has led to the development of an aerial bait to control invasive brown tree snakes on Guam. The effort was awarded the Department of Defense’s 2015 Project of the Year Award for Resource Conservation and Climate Change.

This month USDA highlights some of the important partnerships that work with us to care for our land, air and water.  The work stretches into areas and takes USDA employees to places you wouldn’t suspect.

For example, the damage wreaked by invasive brown tree snakes on Guam is hard to imagine.

Infestations of the snake have led to the loss of all but two of the twelve native forest birds on the island, millions of dollars in damages to the island’s electrical power grid, and physical injuries to residents from snake bites. Read more »

Bison are back and here to stay at the Midewin National Tallgrass Prairie

Bison on the Midewin National Tallgrass Prairie

Bison on the Midewin National Tallgrass Prairie. Photo credit: Gary Chancey, US Forest Service.

Guest Post by Hannah Ettema of the National Forest Foundation.

It was like stepping back through time on the Midewin National Tallgrass Prairie. Some 200 years ago, when bison prominently roamed the Illinois landscape, kicking up dust as they ran in the herd before settling against a back-drop of tall prairie grasses.

That scene from the past is actually part of the Midewin’s future as four bulls and 23 cows were introduced to their new 1,200 acre enclosure. The first to arrive were the bulls, one 2-year-old and three 3-year-olds, from the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service at the National Wildlife Research Center in Fort Collins, Colo. Read more »

USDA Helps Bring Bison Back to Colorado’s Prairies

A surrogate mother bison standing guard over her new baby

A surrogate mother bison stands guard over her new baby. The young bison is part of the Laramie Foothills Bison Conservation Herd – a group of genetically-pure and disease-free bison established by Colorado State University, APHIS-Veterinary Services, the City of Fort Collins and Larimer County, Colorado. Photo by John Eisele, Colorado State University.

New greeters welcome visitors to the USDA-APHIS National Wildlife Research Center (NWRC) in Fort Collins, Colorado. They are big, hairy, and far from shy.

Twelve bison are housed on Colorado State University (CSU) land adjacent to NWRC’s front gate.  These bison are part of a collaborative reproductive study among APHIS-Veterinary Services (VS), CSU, the City of Fort Collins, and Larimer County, Colorado. Read more »

Events Highlight the Impact of Rabies on People, Pets and Wildlife

Rabies in the Americas Logo

USDA is honored to host the 26th Rabies in the Americas conference in Fort Collin, Colorado, beginning Sunday, Oct. 4.

What do raccoons, vampire bats, and mongooses have in common? All are wildlife species that are commonly associated with rabies and can potentially expose people, pets and livestock to the deadly virus.  

The significant impact of rabies on public and animal health will be the focus of the 26th Rabies in the Americas conference in Fort Collin, Colorado, on October 4-8.  This is the first time this important international conference will be held in Colorado and be hosted by APHIS, according to Richard Chipman, coordinator for APHIS-Wildlife Services’ (WS) National Rabies Management Program. Read more »