tag:blogger.com,1999:blog-6537965748256551796.post4679197570475798032..comments2023-09-24T10:19:01.383+01:00Comments on John's Green Issues: Species increasingJohnhttp://www.blogger.com/profile/14197399895034972279noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6537965748256551796.post-46472580781579281852006-02-20T12:45:00.000+00:002006-02-20T12:45:00.000+00:00Unfortunately, it is all too true that variousunwa...Unfortunately, it is all too true that variousunwanted mammals are increasing. However, I doubt that rat numbers are anything like the levels they have been in the past. Does anyone out there know when the last vole'plagues' occurred in Britain? I remember seeing them south of London in the 1950s. Do they still occur?Anonymousnoreply@blogger.com