Rare UK butterflies are later this year

In today’s BBC Nature news:

After a cold spell, British scientists are concerned about the late arrival of rare butterfly species.

Threatened pearl-bordered fritillaries finally emerged at the end of April.

Although my current research is focused primarily on marine plankton phenology, dramatic examples of year to year changes in terrestrial biology are interesting to mark. The recorded observations of flowering events, leaf-out, ice-out and annual migratory patterns comprise phenology across many different ecosystems. Shifting phenological timing due to climatic conditions is difficult to track unless long-term records of both climate and species occurrences are marked.

In contrast with previous year’s observations, the timing of this year’s insects was up to a month later. What role do rare species play in this complex ecosystem interplay of phenological timing and response to environmental conditions?

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About hawright

marine ecologist

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