A new survey shows how earlier springs pose problems for animals, birds and fish that rely on springtime flowering of plants to supply food for their young.

The study compiled 25,000 records of springtime trends for 726 species of plants, animals, plankton, insects, amphibians, birds and fish across land, sea and freshwater habitats. It analysed them for changes in the timing of lifecycle events, such as egg laying, first flights and flowering, a science known as phenology. They conclude that global warming could be changing seasonal timing with profound consequences.

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