作者: Pernilla Christensen , Frauke Ecke , Per Sandström , Mats Nilsson , Birger Hörnfeldt
DOI: 10.1007/S10144-008-0077-5
关键词:
摘要: There has been a long-term decline in spring and fall numbers of Clethrionomys rufocanus boreal Sweden 1971-2005. Previous studies on permanent sampling plots the centre 2.5 x km la ...