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Diffusion of a New Habit among Greenfinches

Abstract

Daphne mezereum L. is a compact, pink, pre-vernal shrub, smothered with a profusion of fragrant blossom in March or earlier, and often planted near a living-room window to cheer one up at that season. It has a natural temperate distribution from the Atlantic to the Altai Mountains1. Chloris chloris L., the greenfinch, has a distribution which, apart from introductions, is somewhat similar2. Thus the two species have probably shared a large geographical area for some ten thousand years, apart from earlier Pleistocene migrations. On the borders of calcareous woods there is an overlap between their natural habitats, and they have been together in gardens for several centuries. During the past fifty years no distinctive association between the two species appears to have been reported2,3.

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References

  1. Clapham, A. R., Tutin, T. G., and Warburg, E. F., “Flora of the British Isles” (Cambridge, 1952).

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  2. Witherby, H. F., et al., “The Handbook of British Birds” (London, 1940).

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  3. Brit. Birds, 148 (1907–1955); J. Brit. Trust Orn., 12 (1954–1955).

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  6. Pettersson, M. L. R., J. Roy. Hort. Soc. (in the press).

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PETTERSSON, M. Diffusion of a New Habit among Greenfinches. Nature 177, 709–710 (1956). https://doi.org/10.1038/177709b0

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