Tag Archives: social behavior

Migrants strangle France alive

It seems that migration policies of a leading country in Europe, France, are seriously changing. The country is no longer able to hold back the crowd of migrants, many of whom do not want to integrate into the social and economic life of their new home country. The upcoming radical changes for migrants were announced by French Interior Minister Manuel Valls.

After a meeting on the National Immigration and Integration, French Interior Minister Manuel Valls announced significant changes in the country’s migration policy. The government will reduce financial assistance to immigrants, and this reduction will be substantial. Starting March 1 of next year, French immigrant benefits will be reduced by 83 percent. The amount of compensation to immigrants who voluntarily want to return home will be also reduced. If earlier the government paid 300 euros for every adult and 100 euros for every minor, in March of 2013 these amounts will be reduced to 50 and 30 euros, respectively. (more…)

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The Original Twitter? Tiny Electronic Tags Monitor Birds’ Social Networks

If two birds meet deep in the forest, does anybody hear? Until now, nobody did, unless an intrepid biologist was hiding underneath a bush and watching their behavior, or the birds happened to meet near a research monitoring station. But an electronic tag designed at the University of Washington can for the first time see when birds meet in the wild.

A new study led by a biologist at Scotland’s University of St. Andrews used the UW tags to see whether crows might learn to use tools from one another. The findings, published last week in Current Biology, supported the theory by showing an unexpected amount of social mobility, with the crows often spending time near birds outside their immediate family. (more…)

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Thermal Imagery Sheds Light on Wolf Disease

Psychedelically colored wolves depicted by thermal imaging will shed light on how mange affects the survival, reproduction and social behavior of wolves in Yellowstone National Park. 

About a quarter of the wolf packs in the park are afflicted with sarcoptic mange, a highly contagious canine skin disease caused by mites that burrow into the skin causing infections, hair loss, severe irritation and an insatiable desire to scratch. 

The resulting hair loss and depressed vigor of the wolves leaves them vulnerable to hypothermia, malnutrition and dehydration, which can eventually lead to death, said Paul Cross, a U.S. Geological Survey disease ecologist, who leads the project along with Doug Smith of Yellowstone National Park.  (more…)

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‘Social Relationships in Animals Have a Genetic Basis’

The ability to tolerate aggression is partly genetic, UCLA life scientists report in the first study to demonstrate a genetic component to a social network trait in a non-human population. 

“The ability to tolerate aggression is passed on across generations; there is genetic variation in the ability to tolerate aggression,” said the study co-author Daniel T. Blumstein, professor and chair of ecology and evolutionary biology at UCLA. 

Blumstein, a leader in the field of applying social network statistics to animals, and his colleagues studied four groups of yellow-bellied marmots, which are related to squirrels, over six years in the Rocky Mountains of Colorado. Each group included 15 to 30 marmots.  (more…)

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