The changing patterns in the distribution of red and grey squirrels in the North of England and Scotland between 1991 and 2010 based on volunteer surveys

[摘要] In the UK, alien grey squirrels have been replacing the native red squirrel for >100 years and by the turn of the century the distribution of grey squirrels had extended to most of central and southern England and Wales (apart from some islands), and l

[学科分类] 动物科学

[关键词] Sciurus vulgaris;S. carolinensis;Distribution;citizen science