Tag Archives | migration

caveman2is

Ancient diaspora was a manly affair

According to current theory, modern humans left Africa around 60,000 years ago in a migration that spread the human population around the world. But researchers from Harvard Medical School now believe that men and women weren’t equal partners in that exodus. By tracing variations in the X chromosome and in the non-sex chromosomes, the researchers […]

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cirl

Warming Britain Attracting New Bird Species




Birds such as the Cirl Bunting and Dartford Warbler are becoming more common across a wide range of habitats in Britain as temperatures rise, while numbers of some northern species, such as the Fieldfare and Redwing, are falling, say researchers at Durham University. The researchers looked at twenty-five year population trends of 42 bird species […]




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citysunset

Urban Areas Turn Migratory Birds Into Couch Potatoes




The latest issue of the journal Ecology carries a study showing that migratory birds in urban areas are choosing to stay-put rather than hit the road on their usual migratory journeys. Working with European blackbirds (Turdus merula), researchers Jesko Partecke and Eberhard Gwinner, conclude that the new adaptive traits could lead to the production of […]




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