Lovari Sandro, Sforzi Andrea, Mori Emiliano
Università degli Studi di Siena, Dipartimento di Scienze della Vita, Via P.A. Mattioli, 4, 53100 Siena, Italy.
Behav Processes. 2013 Oct;99:42-6. doi: 10.1016/j.beproc.2013.06.005. Epub 2013 Jun 21.
In monogamous species, after pair formation, the main reason for ranging movements is not searching for a mate, but for other important resources e.g. food. We monitored a total of 20 radio-tagged adult, paired crested porcupines in four areas of different habitat richness. No sexual size dimorphism was assessed. Body mass and habitat richness showed collinearity. For both sexes, home range size was correlated to habitat richness, with a significant inverse exponential regression. Opposite to natural foragers, living in poor habitats, crop foragers had smaller home ranges, with their dens significantly closer to cultivations. Both availability of food resources and den sites are key variables to determine home range size.
在一夫一妻制物种中，配对形成后，大范围活动的主要原因不是寻找配偶，而是获取其他重要资源，例如食物。我们在四个栖息地丰富度不同的区域共监测了20只佩戴无线电标签的成年配对豪猪。未评估两性异形。体重与栖息地丰富度呈共线性。对于两性而言，家域大小与栖息地丰富度相关，呈显著的负指数回归。与生活在贫瘠栖息地的自然觅食者相反，农作物觅食者的家域较小，其巢穴离耕地显著更近。食物资源的可获得性和巢穴地点都是决定家域大小的关键变量。
