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Flower colour: Gloger's rule isn't just for the birds

A 180-year-old ‘law’ in zoology has found its best support so far in a study of floral colour, which not only documents darker plants growing closer to the equator, but also supports the idea that the colour stems from ultraviolet protection.

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Figure 1: Argentina anserine flowers showing enlarged UV bullseyes at lower latitudes.


  1. Gloger, C. L. Das Abändern der Vögel durch Einfluss der Klima's (A. Schulz, 1833).

  2. Koski, M. H. & Ashman, T-L. Nature Plants 1, 14007 (2015).

    CAS  Article  Google Scholar 

  3. Burtt, E. H. J. & Ichida, J. M. The Condor 106, 681–686 (2004).

    Article  Google Scholar 

  4. Kamiliar, J. M. & Bradley, B. J. J. Biogeog. 38, 2270–2277 (2011).

    Article  Google Scholar 

  5. Stoner, C. J., Caro, T. M. & Graham, C. M. Behav. Ecol. 14, 823–840 (2003).

    Article  Google Scholar 

  6. Allen, W. L., Baddeley, R., Cuthill, I. C. & Scott-Samuel, N. E. Am. Nat. 180, 762–776 (2012).

    Article  Google Scholar 

  7. Roberts, D. F. & Kahlon, D. P. S. Ann. Hum. Biol. 3, 11–22 (1976).

    CAS  Article  Google Scholar 

  8. Chaplin, G. Am. J. Phys. Anthropol. 125, 292–302 (2004).

    Article  Google Scholar 

  9. Jablonski, N. G. & Chaplin, G. Proc. Natl Acad. Sci. USA 107(suppl. 2), 8962–8968 (2010).

    CAS  Article  Google Scholar 

Download references

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Correspondence to Innes C. Cuthill.

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Cuthill, I. Flower colour: Gloger's rule isn't just for the birds. Nature Plants 1, 14013 (2015).

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