Madrid, June 7 (EFE) .- The great tit ('Parus major'), a small bird and common in parks and gardens, distinguished by a characteristic black color tie, contrasting with the yellow belly modifies its song as the noise of cities as Madrid.
This was revealed in a study in the capital of Spain and Diego Gil Salaberria Concepción, Department of Evolutionary Ecology, National Museum of Natural Sciences-CSIC.
Research has determined how it affects the background noise in the city of Madrid in the frequency of song of the great tit, a species listed 'special interest' in the National Catalogue of Threatened Species.
The work, published in the journal 'Ardeola' SEO / BirdLife, shows that the charcoal in locations more sing louder and lower minimum frequency bandwidth of singing in quieter places, a strategy that allows them to be better perceived by their peers in situations of high levels of urban noise.
"This plasticity in the song may be one of the factors that contribute to successful colonization by species of the cities," the authors conclude.
The results obtained in Madrid, according to Spanish scientists corroborate previous studies developed in other European cities for the great tit and other species. EFE
Thanks to ABC.ES
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