The Auk

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Rising temperatures may have a profound physical impact on one of The World 's most popular songbirds.

researchers in Spain that had wide over a period of 20 years, nightingales smaller span.

The Scientists say that in the context of a changing climate in the region, which has seen the early beginning of spring, and more dryness.

are you worried that this will migrate to a deterioration of The Bird the ability to winter.

is Famous for singing, for its ability to The Nightingale , has a Very Rich repertoire to produce as it is able, over 1,000 different sounds, compared to only 340 larks.

Although common in many parts of Europe and Asia, and The Bird is mainly seen and heard in the South of England.

the numbers here, the students significantly below 90%, with several factors to blame including deer eat their preferred nesting sites, but also because of Climate Change have gone in the course of The Last half-century.

The Nightingale spends The Winter in Africa South of the Sahara, with the small, brown creature clocking the huge distances during migration.

the sash size is critical to this project.

Now, the researchers say, is to migrate that the ability can be hindered by Climate Change .

a scientist in Spain 20 years of data studied about the wing-shape in two populations of The Birds .

they found that the average wing length of nightingales has fallen in proportion to their body size.

Rising temperatures may favour the smaller breeds with smaller wings

do you think that this in connection with changes in the temperatures seen in The Mediterranean region.

"to show Our results, that spring means is delayed and the intensity of drought is higher in summer, which means that a shorter optimal hatching Dr. Carolina Remacha said time for The Birds ," from Madrid's Complutense University, who led the study.

"We find a unique opportunity, which preferably are shorter wing. "

The researchers believe that birds such as The Nightingale , which is usually the adaptation to the requirements of the migration by longer wings, a larger clutch size, but a shorter lifespan.

But, the changing temperatures with this and provoked a reaction from The Birds .

Faced with a shorter hatching time, the researchers believe that The Most successful birds have smaller families with smaller wings.

they argue that these adjustments are likely to come at a price.

"If these changes are the response to the new environment, then of course The Ones that were selected, The Ones with shorter wings, the optimal nightingales for the new situation," said co-author Prof Javier pérez-Tris of Complutense University.

"you're not The Best wings for the migration, but the shorter wings come in the same packaging. "

The researchers say that The Birds will continue to be reduced with the same migration patterns and goals and, thus, their survival is likely.

While The Scientists say that this "failure of adaptation" obviously, in The Birds you studied in Spain, where it is already a drought in the summer, it can also affect other members of the species in different regions.

"If the climate is changing in a similar manner, and the loads are similar, as one would expect answers similar," said Dr. Perez-Tris.

in The Auk : Ornithological advances.

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Source of news: bbc.com