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Archaeologists Find New Evidence of Animals Being Introduced to Prehistoric Caribbean

By Guest PostDecember 13, 2011Scienceagoutis, animal remains, armadillos, arrival of columbus, caribbean, caribbean islands, carriacou, charcoal, daily consumption, guinea pigs, michelle lefebvre, north carolina state university, opossum, pig like peccaries, pre columbian caribbean, prehistoric non native animal, prehistoric villages, rodents, scott fitzpatrick, south america, tiny island, university of florida, university of washington

An archaeological research team from North Carolina State University, the University of Washington and University of Florida has found one of the most diverse collections of prehistoric non-native animal remains in the Caribbean, on the tiny island of Carriacou. The find contributes to our understanding of culture in the region before the arrival of Columbus, and suggests Carriacou may have been more important than previously thought.

The researchers found evidence of five species that were introduced to Carriacou from South America between 1,000 and 1,400 years ago. Only one of these species, the opossum, can still be found on the island. The other species were pig-like peccaries, armadillos, guinea pigs and small rodents called agoutis. (more…)

UF-led study: Invasive Amphibians, Reptiles in Florida Outnumber World

By Guest PostSeptember 24, 2011Environment, Scienceamerican alligator, bishop museum in honolulu, brown anole, burmese pythons, cargo ships, cement walls, Cuba, everglades, florida, florida museum of natural history, fred kraus, greenhouse frog, iguanas, invasion of lizards, invasive amphibian and reptile, kenneth krysko, lizards, python, turtles, university of florida, west indies, zootaxa

GAINESVILLE, Fla. — Florida has the world’s worst invasive amphibian and reptile problem, and a new 20-year study led by a University of Florida researcher verifies the pet trade as the No. 1 cause of the species’ introductions.

From 1863 through 2010, 137 non-native amphibian and reptile species were introduced to Florida, with about 25 percent of those traced to one animal importer. The findings appear online today in Zootaxa. (more…)

UF Study Names New Ancient Crocodile Relative from The Land of Titanoboa

By Guest PostSeptember 17, 2011Scienceacherontisuchus guajiraensis, age of dinosaurs, alex hastings, ancient crocodile, ancient crocodyliform, asteroid impact, atlantic ocean, caribbean, carlos jaramillo, catastrophes, cerrejon mine of northern colombia, changes in climate, christopher brochu, colombian coal mine, crocodiles, diversity of animals, dyrosaurid, ecological changes, environmental changes, fossils, freshwater environments, greek mythology, jonathan bloch, largest snake, oldest known rainforest ecosystem, open pit coal mines, palaeontology, Paleocene, river acheron, species, the river of woe, titanoboa, university of florida, warmer climate

GAINESVILLE, Fla. — Did an ancient crocodile relative give the world’s largest snake a run for its money?

In a new study appearing Sept. 15 in the journal Palaeontology, University of Florida researchers describe a new 20-foot extinct species discovered in the same Colombian coal mine with Titanoboa, the world’s largest snake. The findings help scientists better understand the diversity of animals that occupied the oldest known rainforest ecosystem, which had higher temperatures than today, and could be useful for understanding the impacts of a warmer climate in the future. (more…)

UF Study Shows Tundra Fires Could Accelerate Climate Warming

By Guest PostJuly 31, 2011Environmentanaktuvuk river fire, arctic carbon cycle, arctic fires, arctic tundra, atmosphere, atmospheric carbon dioxide, canada, carbon, city of miami, ecologist, ecosystem ecology, global climate, global climate warming, greenhouse gases, michelle mack, Nature, north slope of alaska brooks range, organic matter, permafrost, radiocarbon dating, russia, smoke, soil bound carbon, ted schuur, terry chapin, tundra, university of alaska, university of florida, wildfires

GAINESVILLE, Fla. — After a 10,000-year absence, wildfires have returned to the Arctic tundra, and a University of Florida study shows that their impact could extend far beyond the areas blackened by flames.

In a study published in the July 28 issue of the journal Nature, UF ecologist Michelle Mack and a team of scientists including fellow UF ecologist Ted Schuur quantified the amount of soil-bound carbon released into the atmosphere in the 2007 Anaktuvuk River fire, which covered more than 400 square miles on the North Slope of Alaska’s Brooks Range. The 2.1 million metric tons of carbon released in the fire — roughly twice the amount of greenhouse gases put out by the city of Miami in a year — is significant enough to suggest that Arctic fires could impact the global climate, said Mack, an associate professor of ecosystem ecology in UF’s department of biology. (more…)

‘Combining Therapies Appears Safe, May Benefit Patients with Advanced Liver Cancer’

By Guest PostJuly 9, 2011Healthadvanced primary liver cancer, bayer healthcare, cancer, chronic hepatitis c infection, cirrhosis, diarrhea, drugs, epidemics of obesity and diabetes, fatigue, hcc, hepatocellular carcinoma, hepatologists, inflammation, james caridi, liver cancer, metabolic syndrome, nonalcoholic fatty liver disease, onyx pharmaceuticals, paul martin, roniel cabrera, side effects, skin reactions, sorafenib, transarterial chemoembolization, tumor feeding blood vessels, tumors, type of liver cancer, unexpected toxic effects, united states, university of florida, university of miami, viable treatment options, world health organization

GAINESVILLE, Fla. — Few treatments exist for patients with advanced primary liver cancer, but University of Florida researchers have found a new way to broaden the range of options and potentially improve health outcomes by combining two treatments.

In the first study of its kind, the researchers combined sorafenib, the only Food and Drug Administration-approved pill for treating advanced liver cancer, with another routinely used therapy known as transarterial chemoembolization, which works by cutting off the blood supply to tumors. No unexpected toxic effects were seen, and the combo appears to have the potential to improve survival for certain groups of patients. (more…)

Rare Deep-Water Giant Squid from South Florida Brought to UF for Research

By Guest PostJune 29, 2011Nature, Sciencearchiteuthis dux, biogeography, chromatophores, color bearing cells, ecology, florida fish and wildlife conservation commission, florida museum of natural history, gainesville campus, genetic data, genetic work, giant squid, invertebrates, japanese film crew, jensen beach, joey asaro, john slapcinsky, paleontologist, paul peroulakis, pigment cells, recreational fishermen, reproduction, robert benz, roger portell, sea monsters, smithsonian institution, specimen, sperm whales, squid, university of florida

GAINESVILLE, Fla. — University of Florida researchers received a rare 25-foot-long, deep-water giant squid Monday, the only one of its kind in the collections of the Florida Museum of Natural History.

Recovered by recreational fishermen who found the creature floating on the surface about 12 miles offshore from Jensen Beach Sunday, museum scientists collected the specimen from the Florida Fish and Wildlife Conservation Commission Tequesta Field Laboratory in Palm Beach County and returned to the Gainesville campus late Monday. (more…)

UF: Florida Population Soars in Century’s First Decade, But Rate is Slowing

By Guest PostJune 15, 2011Economyannual population increases, economic growth, flagler and sumter counties, florida, growth rates, hillsborough county, metropolitan city, miami dade county, monroe, orange county, palm coast, pinellas, population growth, projections, stan smith, university of florida, warrington college of business administration

GAINESVILLE, Fla. — Florida was again one of the country’s leaders in population growth in the last decade, but the growth rates over the past few years have been among the lowest in the state’s history, according to a new study by the University of Florida.

Florida’s permanent resident population increased by more than 2.8 million between 2000 and 2010 — an increase of 17.6 percent to 18,801,310. That mark was the third-largest numeric increase and the eighth-largest percentage increase in the country. However, the growth rate lagged behind previous periods for the state, and projections are the growth rate will steadily decline through 2040. (more…)

Scientists Discover a New Tiger Shark Hunting Technique

By Guest PostJune 8, 2011Natureacceleration, carl meyer, cosmopolitan predators, depth, digital still cameras, hawaii institute of marine biology, high resolution accelerometers, himb, hunting behavior of tiger sharks, japanese national institute of polar research, prey, reef and pelagic fishes, swimming dynamics, swimming speed, temperature, three dimensional spaces, tiger sharks, unicornfish, university of florida, university of hawaii at manoa, university of tokyo, west coast of hawaii island, yo yo swimming patterns

In a joint research effort between the University of Hawaiʻi at Mānoa’s Hawai‘i Institute of Marine Biology (HIMB), University of Tokyo, the Japanese National Institute of Polar Research, and the University of Florida, scientists have shed new light on the hunting behavior of tiger sharks by studying their swimming dynamics off the west coast of Hawai‘i Island. (more…)

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