» Birds, bats, turtles shaken by freeze.
DALLAS — As many people in the southern U.S. hosted neighbors who had no heat or water during the vicious February storm and deep freeze, Kate Rugroden of Arlington provided a refuge for shell-shocked bats.
Starving and disoriented, the winged mammals tumbled to the snow-coated ground as temperatures plunged to levels rarely seen in the region.
“They burned through their energy reserves as they tried to wake up and get away from the cold and ice,“said Rugroden, one of numerous rehabilitation specialists nursing stranded bats plucked up by sympathetic people. “And there aren’t any insects out there for them to eat yet.“
Bats are among numerous wildlife believed to have taken a beating in the South, a region unaccustomed to such a severe and prolonged cold snap. Many species migrate there for winter precisely because of its normally mild weather.
It might take weeks or months to determine the extent of the harm, but anecdotal evidence already is turning up — including dead robins on yards and sidewalks.
Alligators in Oklahoma’s Red Slough Wildlife Management Area were photographed with snouts protruding from frozen waterways — a survival maneuver enabling them to breathe while their bodies go dormant to conserve energy.
Fish kills were feared in Arkansas and Louisiana. The Texas
Parks and Wildlife Department said it expected casualties among exotic deer and antelope. Across the Gulf of Mexico coast as far east as Florida, naturalists worried about monarch butterflies and the milkweed plants essential to their survival as they prepare to migrate north.
“Animals can respond to events like this by moving elsewhere, but if it’s beyond your flight range or your walking range you have to hunker down,” said Perry Barboza, a wildlife biologist at Texas A&M University. “Some animals like small birds can do it just a night or two. The duration becomes the killer.“
Sea turtles stunned by frigid Gulf coastal waters were still being cared for at facilities this week. More than 10,600 had been found, and officials were tabulating how many died, said Donna Shaver, Texas coordinator for the Sea Turtle Stranding and Salvage Network.
Sea Turtle Inc. took in so many that it used the South Padre Island Convention Center to accommodate the overflow, executive director Wendy Knight said.
“Our hospital is now completely filled to the gills,” Knight said.
Fish kills along the Texas coast were expected for recreational favorites such as spotted sea trout and red drum. In Louisiana, officials said it could take a week for dead fish to wash ashore.
While extreme weather is particularly dangerous for imperiled species, the whooping crane — listed by the federal government as endangered — appears to have weathered the storm, said Joe Saenz, manager of the Aransas National Wildlife Refuge in Texas.
About 500 of the majestic birds spend winters at the refuge before returning to Canadian nesting grounds. During the cold spell, some were spotted feasting on dead fish floating on the Gulf waters.
In South Texas, bur clover, a winter weed crucial for deer in spring, was showing freeze burn.
Long-term, the biggest concerns are for birds and bats, both of which had absorbed heavy blows even before the storm.
Breeding bird populations in the U.S. and Canada have plummeted nearly 30 percent in the past 50 years — primarily because of habitat loss. Spring population counts will offer the first indication of how many succumbed to the cold, Barboza said.
Migratory birds don’t bother fattening up for winter because food in the South is plentiful, he said. During the storm, many probably burned through their meager energy reserves and died of exhaustion. About 20 dead brown pelicans were found on Texas’ Chester Island.
“You worry about food sources covered in snow — seeds and berries — and a decrease in insect life,” said Ben Jones, executive director of the Texas Conservation Alliance, who found five dead birds in his yard last weekend. Robins, bluebirds, hermit thrushes and gray catbirds were among hard-hit types, he said.
Meanwhile, a well-known bat colony living under Houston’s Waugh Bridge appears to have taken big losses.
“We’re seeing a large population hit,” including migratory bats just arriving from Mexico, Rugroden said.