Climate change is affecting the breeding cycles of toads and salamanders, researchers reported on Tuesday, in the first published evidence of such changes on amphibians.

They documented that two species were breeding later in the autumn than in years past, and two others were breeding earlier in the winter.

Their study, published in the Proceedings of the Royal Society B, adds to a growing body of evidence that climate change is affecting animals.

Other studies have shown some birds in North America and Europe are moving northwards as temperatures rise.