The key to breeding disease-resistant honeybees could lie in a group of genes -- known for controlling hygienic behaviour -- that enable colonies to limit the spread of harmful mites and bacteria, according to genomics research conducted at York University. The researchers narrowed in on the 'clean' genes known to improve the colony's chance of survival. The finding was published today in the journal Genome Biology and Evolution.
A new study on the measles epidemic in China has far-reaching implications for eliminating the infection globally. Using a new model-inference system developed at the Columbia Mailman School, the researchers were able to estimate population susceptibility and demographical characteristics in three key locations in China, in a period that spans the pre-vaccine and modern mass-vaccination eras.
Researchers at the University of Washington wanted to know how Magellanic penguin parents in South America balance the dietary demands of multiple chicks. As they report in a paper published Jan. 23 in the journal Animal Behaviour, when a Magellanic penguin parent returns to its nest with fish, the parent tries to feed each of its two chicks equal portions of food, regardless of the youngsters' differences in age or size.
Researchers found that if a squirrel inherits territory from a male rather than a female, it will have about 1,300 more cones in its midden. This stored energy will keep the squirrel alive an extra 17 days. For females it means she will enough food to breed earlier, resulting in her offspring leaving the nest earlier. This shows how the behavior of a complete stranger can impact the genetic contribution of another.
Does a drier and hotter climate present a threat to the meerkats in the Kalahari Desert? Researchers from UZH and Cambridge show that climate change is likely to impact meerkats, and seasonal rainfall and temperature will be the key factors.
White-tailed deer feeding habits shape the acoustic properties of their forest habitat, potentially affecting the vocal communication of understory-dwelling songbirds and other species, according to a study published Feb. 13, 2019 in the open-access journal PLOS ONE by Timothy J. Boycott from Vassar College, USA, and colleagues.
A new species in the family of Softshell Turtles is described from Northern Vietnam and China by a Hungarian-Vietnamese-German team of researchers. The newly discovered reptile has a distinctly blotched shell and is so critically endangered that it is close to extinction. The study is published in the scientific journal ZooKeys.
A new to science species of tarantula with a peculiar horn-like protuberance sticking out of its back was recently identified in central Angola, a largely underexplored country located at the intersection of several Afrotropical ecoregions. Collected as part of the National Geographic Okavango Wilderness Project, the new arachnid is described in the open-access journal African Invertebrates.
A new species of puddle frog (order: Anura, family: Phynobatrachidae, genus: Phrynobatrachus), has just been discovered by NYU Abu Dhabi researchers at the unexplored and isolated Bibita Mountain in southwestern Ethiopia. The research team named the new species Phrynobatrachus bibita sp. nov., or Bibita Mountain dwarf puddle frog, inspired by its home.
For some of us, they carry the bright blue of our grandfather's eyes. For others they result in the characteristic cleft chin or the familial tendency toward color blindness. But in some families, the genetic mutations handed down from generation to generation aren't as benign. And for one family in particular, the mutation results in early-onset Alzheimer's disease.