Joint effects of weather and interspecific competition on foraging behavior and survival o

Joint effects of weather and interspecific competition on foraging behavior and survival of a

mountain herbivore

Francesco FERRETTI;Sandro LOVARI;Philip A.STEPHENS

【期刊名称】《动物学报（英文版）》 【年(卷),期】2019(065)002

【摘要】Weather variations have the potential to influence species interactions,although effects on competitive interactions between species are poorly known.Both weather and competition can influence foraging behavior and survival of herbivores during nursing/weaning,a critical period in the herbivore life cycle.We evaluated the joint effects of weather and competition with red deer Cervus elaphus on the foraging behavior of adult female Apennine chamois Rupicapra pyrenaica ornata in summer,and on winter survival of chamois kids.High temperature and low rainfall during the growing season of vegetation had negative effects on bite rate.Effects of weather were greater in forb patches,including cold-adapted,nutritious plants of key importance to chamois,than in graminoid ones.Our results confirm previous indications of a negative effect of competition on bite rate of female chamois and on kid survival.Furthermore,harsh weather conditions and competition with deer had additive,negative roles on foraging behavior and survival of chamois.Growing temperatures are expected to

influence distribution,growth,and/or nutritional quality of

plants;competition would reduce pasture quality and food availability through resource depletion.Both factors would limit food/energy intake rates during summer,reducing survival of the youngest cohorts in winter.We suggest that interspecific competition can be an important additive factor to the effects of weather changes on behavior and demography.

【总页数】11页(165-175) 【关键词】

【作者】Francesco FERRETTI;Sandro LOVARI;Philip A.STEPHENS

【作者单位】Research Unit of Behavioural Ecology, Ethology and Wildlife Management, Department of Life Sciences,University of Siena, Via P.A.Mattioli 4, 53100 Siena, Italy;Research Unit of Behavioural Ecology, Ethology

and

Wildlife

Management,

Department

of

Life

Sciences,University of Siena, Via P.A.Mattioli 4, 53100 Siena, Italy;Maremma Natural History Museum, Strada Corsini 5, 58100 Grosseto, Italy;Conservation Ecology Group, Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK 【正文语种】英文 【中图分类】 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_current-

zoology_thesis/0201270252795.html 【相关文献】

1.Cyclic behavior of stiffened joints between concrete-filled steel tubular column and steel beam with narrow outer diaphragm and partial joint penetration welds [J], Chunyan QUAN; Wei WANG; Jian ZHOU; Rong WANG

2.Cyclic behavior of stiffened joints between concrete-filled steel tubular column and steel beam with narrow outer diaphragm and partial joint penetration welds [J], Chunyan QUAN[1,2]; Wei WANG[1,2]; Jian ZHOU[3]; Rong WANG[3]

3.Effects of mountain pine beetle-killed forests on source water contributions to streamflow in headwater streams of the Colorado Rocky Mountains [J], Christine E. WEHNER; John D. STEDNICK

4.Effects of mountain pine beetle-killed forests on source water contributions to streamflow in headwater streams of the Colorado Rocky Mountains [J], Christine E.WEHNER; John D.STEDNICK

5.Simultaneous effects of joint spacing and joint orientation on the penetration rate of a single disc cutter [J], Bejari Hadi; Kakaie Reza; Ataei Mohammad; Khademi-Hamidi Javad

以上内容为文献基本信息，获取文献全文请下载