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- JEFFERIES, D.J.
- Biological journal of the Linnean Society 1989 v.38 no.1 pp. 61-69
- Lutra lutra; age structure; fisheries; hounds; organochlorine insecticides; rivers; water quality; England; Scotland; Wales
- ... Otters Lutra lutra were persecuted increasingly in Britain for fishery protection and for sport throughout the 18th and 19th centuries. There are indications of a population recovery occurring during the 1914-1918 war with the temporary cessation of hunting and keepering. Intensive otter hunting with packs of hounds throughout the 1920s and 1930s appears to have stressed the population by altering ...
- KENWARD, R.E.; HOLM, J.L.
- Biological journal of the Linnean Society 1989 v.38 no.1 pp. 83-89
- Quercus; coniferous forests; conifers; crops; fruits; islands; squirrels; England; Scotland
- ... The geographic range of red squirrels contracted sharply in Britain during the 1940s arid 1950s, as increasingly large areas were colonized by the congeneric North American grey squirrel. Red squirrels remain common only on offshore islands, and in the large conifer forests of northern England and Scotland. The initial replacement of red squirrels was in arras dominated by oak woodland, probably b ...