Warmer nights prompt birds to lay eggs earlier

phys.org | 4/23/2018 | Staff
iVchan (Posted by) Level 3
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As climate change continues to cause temperatures to rise, the breeding patterns of birds such as blue **** are being altered as evenings in spring get warmer, researchers say.

Previous research has shown that warmer springs have led birds to begin breeding earlier. However, until now, scientists had not identified the key factors that cause this behavior.

Spring - Warming - Chicks - Periods - Caterpillars—their

With increasing spring warming, chicks may begin hatching after periods when caterpillars—their main food source—are most plentiful, scientists say.

Warmer temperatures are causing the peak in caterpillar numbers to occur earlier in the year, and birds like blue **** are responding too, but often not fast enough, the team says.

Team - Biologists - University - Data - Sites

A team of biologists from the University analyzed data from 40 Scottish sites over a five-year period.

They found that birds decide when to reproduce based on night-time temperatures...
(Excerpt) Read more at: phys.org
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