HomeScience & InnovationGlobal warming forces birds to lay eggs earlier

Global warming forces birds to lay eggs earlier

Scientists have compared the laying dates of 72 bird species and found that rising temperatures are forcing them to lay their eggs a month earlier than they did a century ago.

Nesting 25 days earlier

The arrival of spring announces each year a traditional revival of nature with the song of birds. The latter take advantage of this period to build their nests and lay their eggs. But the Journal of Animal Ecology has published a latest study showing that many species of birds are nesting and laying eggs a month earlier than a century ago.

This change was found by comparing century-old egg collections kept in museums with recent observations, which made it possible to examine egg-laying trends over approximately 120 years.

With this data, the scientists in this study found that, of the 72 bird species in Chicago — for which historical and modern data were available — about one-third now lay eggs 25.1 days earlier than a hundred years ago.

global-warming-bird-egg2

Understanding the behavioral change of birds

John Bates, first author of the study, and his colleagues tried to understand this change in behavior and looked at the rises in temperature which are already the cause of several environmental and biological problems.

However, the team of researchers found themselves faced with a problem: there is no temperature data going back that far in this place. To fill this gap, they used the quantities of carbon dioxide (CO 2 ) in the atmosphere , which is a good temperature indicator. Indeed, by comparing the tendencies of the quantities of CO 2 and of the temperature, one realizes that their variations correspond .

After comparison, the researchers found that variations in CO 2 were correlated with changes in laying dates. It would therefore seem that warming is causing changes that have consequences on the biological behavior of birds: the flowering of plants occurs earlier and is therefore accompanied by the presence of insects .

Since the birds feed on insects, they are forced to come out earlier to be sure of finding available food and are eventually forced to build their nests and lay their eggs earlier.

Mehmet S. Kaya
Mehmet S. Kayahttps://teknonel.com
Mehmet is one of the administrator of Teknonel. As a software developer, he loves to share his knowledge in related topics. He is highly familiar with the editorial process from the inception of an article idea, through the iterative process, publishing, and performance analysis as well as product reviews.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Best Deals Today

Follow us on Social Media!

12FansLike
15,848FollowersFollow
13FollowersFollow
656SubscribersSubscribe

Related Articles

Explore More Articles

DayZ 2 Release Date Latest News and Leaks

DayZ 2: Release Date, Latest News and Leaks

0
DayZ paved the way for an entire genre, but then quickly lost popularity in recent years. Nowadays, we noticed more people are playing it...
Beats-Studio-3-Wireless-Headphones-android-connect-min

Beats Studio 4: Release date, News and Rumors

0
Since the takeover of Beats by Apple in 2014, the headphone manufacturer has gradually reduced the number of products marketed. Above all, with the...
Scientists discovered Tardigrades New extreme Survival Skill-min

Scientists discovered Tardigrades’ New extreme Survival Skill

0
The tardigrade or water bear, known as the strongest creature on Earth, has super survival ability and has a unlucky fate. It must constantly...
Bilgisayar korsanlarının yeni hedefi çevrimiçi oyuncular

The new target of hackers is online gamers

0
The increase in the number of online players since the beginning of the epidemic has also increased attempts to steal accounts, bank information and...