Scientists studying genetic variation and gene flow in a population of tortoises (Gopherus agassizii) in California’s Mojave Desert, were surprised recently to discover that two roads built in the desert in the 1970s had a noticeable impact on the population’s genetic structure. [...more]
Scientists studying genetic variation and gene flow in a population of tortoises (Gopherus agassizii) in California’s Mojave Desert, were surprised recently to discover that two roads built in the desert in the 1970s had a noticeable impact on the population’s genetic structure. [...more]
Reptiles that live near and feed upon amphibians in the tropics may be spreading the deadly amphibian disease Chytridiomycosis (caused by the chytrid fungus Batrachochytrium dedrobatidis), holding and transporting reservoirs of the fungus on their skin. [...more]
Researchers from the Smithsonian Conservation Biology Institute, Hawaii Institute of Marine Biology and other partnering organizations spent two weeks at the end of November collecting sperm and embryonic cells during spawning from two species of coral and have built the first frozen repository for the Great Barrier Reef. [...more]
For three years—2001, 2002 and 2008—on Teopa Beach in Jalisco, Mexico, researchers examined the shell, neck and flippers of female turtles that had come out onto the beach to nest, collecting and carefully documenting all the organisms—known as epibionts—they found. [...more]
It is one of the rarest shrubs in the southeastern United States but for scientists trying to save it, the critically endangered Michaux’s sumac (Rhus michauxii) is not cooperating. [...more]
A new study on the dodo’s island home of Mauritius in the Indian Ocean, paints a picture of this unusual bird as an intrepid survivor on par with the giant tortoise for its resiliency. [...more]
Depending on where the fish disperse from, the use of ‘stepping stones', flotsam or simply being an adult can help in the journey to find a new home. [...more]
Scientists from the Smithsonian Migratory Bird Center have found that fledgling catbirds living in the suburbs are extremely vulnerable. Almost 80 percent are killed by predators before they reach adulthood. Nearly half of the deaths are connected to domestic cats. The team studied catbird nests in 3 suburban neighborhoods in Maryland: Spring Park, Opal Daniels Park, and Bethesda. Learn more about this 2011 study by clicking here. (Catbird photo by Gerhard Hofmann)
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