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Squirrels in England, Wales and Scotland, 1955
Journal of Animal Ecology
Vol. 26, No. 2 (Nov., 1957), pp. 287-294
Published by: British Ecological Society
Stable URL: http://www.jstor.org/stable/1748
Page Count: 8
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1. Records of grey squirrels seen in new areas since 1952 have been collected, and in 1955 information on the presence or absence of both red and grey squirrels was gathered from 538 forest areas. 2. Of the forests 115 had neither species, 145 had grey squirrels only, 206 had red squirrels only, and 72 had both species. In England and Wales roughly 80% of forests lying within the 1945 range of the grey squirrel had no red squirrels in 1955; the remainder lay near the fringes of the 1945 range. Most forests reporting that both species were present had been colonized by greys since 1945. 3. In England the grey squirrel population in Yorkshire and that in Nottinghamshire and north Lincolnshire are now separated by less than ten miles, Cornwall has been entered, and Norfolk and west Suffolk seem about to be colonized. Advances of up to sixty miles have been made across Wales, and in Scotland the distribution has spread over twice the area known to have been covered in 1945. A reduction in the number of grey squirrels present was noticed in many areas in 1955.
Journal of Animal Ecology © 1957 British Ecological Society