Seventy-five years of masting and rodent population peaks in Norway: Why do wood mice not follow the rules?

作     者：Vidar SELÅS 

作者机构：Department of Ecology and Natural Resource ManagementNorwegian University of Life SciencesÅsNorway 

出 版 物：《Integrative Zoology》 (整合动物学（英文版）)

年 卷 期：2016年第11卷第5期

页      面：388-402页

核心收录：

学科分类：1001[医学-基础医学(可授医学、理学学位)] 100104[医学-病理学与病理生理学] 10[医学] 

主　　题：acorns masting seed production winter temperature wood mouse 

摘      要：Wood mouse(Apodemus sylvaticus)populations are expected to show a peak in autumn in the year after a mast year of sessile oak(Quercus petraea),because stored acorns increase winter *** Aust-Agder,South Norway,only 16 of 34 mast years from 1939-2014 were followed by a year with a peak in the wood mouse *** many of the remaining instances,there rather was a minor peak 2 or 3 years after the *** multiple logistic regression models,the probability of a wood mouse population peak after a mast year of ses­sile oak was positively related to a snow-corrected temperature index of the previous winter and negatively to a small rodent population index of the previous *** present study thus supports the hypothesis that lon­ger periods with snow-free ground and subzero temperatures negatively affect wood mouse winter ***­cause it may be difficult for wood mice to survive on a diet consisting of acorns alone,the negative relationship with the rodent population index of the previous year is most likely caused by an over-exploitation of necessary alternative food resources,such as other plant seeds and *** acorns not utilized during one win­ter are assumed to benefit wood mice in a succeeding winter,giving a delayed population peak relative to the mast year.