Neo-Darwinism / R.J. Berry.

  • Berry, R. J. (Robert James)
Date:
1982
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Neo-Darwinism / R.J. Berry. Source: Wellcome Collection.

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    20 Miles Fig. 2-1 Most matings take place between close neighbours. These figures show the average distance apart of marriage partners in: (a) the Oxfordshire village of Charlton-on- Otmoor in the mid-nineteenth century, and (b) the whole of England and Wales between 1930 and 1960 (omitting large towns). Similar curves have been obtained from the foraging of bees; the flight of Drosophila over several days; cross-pollination by bees; and the wind dispersal of spores or pollen. (From berry, 1977.)