Department of Zoology, Tel Aviv University, Israel.
Ambio. 2011 Feb;40(1):43-51. doi: 10.1007/s13280-010-0070-z.
We studied the effect of various factors on body size variation of the Eurasian lynx in Norway, using data from 374 lynx collected between 1960 and 1976 and whose locality of capture, year of birth, sex, and age were known. Body size of lynx in Norway was mainly affected by sex and age. Female skull size (and by implication body size) was also positively affected by the availability of its main prey (roe deer) and by latitude, and negatively by the North Atlantic Oscillation (NAO). Male size was not affected by any of the environmental factors examined. We interpret the effects of NAO and latitude on body size through their effect on the local climate and particularly snow conditions. We suggest that females are more sensitive to environmental factors than males.
我们研究了挪威欧亚猞猁体型变化的各种因素的影响，使用了 1960 年至 1976 年间收集的 374 只猞猁的数据，这些猞猁的捕获地点、出生年份、性别和年龄均已知。挪威猞猁的体型主要受性别和年龄的影响。雌性头骨大小（因此也影响体型）还受到其主要猎物（狍）的丰度和纬度的正向影响，以及北大西洋涛动（NAO）的负向影响。雄性大小不受任何研究环境因素的影响。我们通过当地气候，特别是雪况，来解释 NAO 和纬度对体型的影响。我们认为雌性比雄性对环境因素更敏感。
