Sunday, 1 April 2018

Blackbirds in the city: Bad health, longer life


Date:  March 22, 2018
Source:  University of Groningen

Summary:
Blackbirds live longer in cities than in forests. But their telomeres, the repetitive stretches of DNA at the ends of the chromosomes, show that these city birds have a much poorer health status than their rural cousins. These findings from a study in five European cities led by University of Groningen biologists were published in Biology Letters on 21 March.

Blackbirds are a common sight in many city gardens. The species has adapted well to this environment. 'But they also live in their original forest areas, which makes them ideal candidates for a study of the effect of city life on health', says University of Groningen postdoc Juan Diego Ibáñez-Álamo. He travelled to Granada, Seville, Madrid, Dijon and Turku to obtain blood samples from blackbirds in these cities and the adjacent rural areas.


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