Selection of summer feeding sites and food resources by female migratory caribou (Rangifer tarandus) determined using camera collars

Female migratory caribou (Rangifer tarandus) depend on the availability of summer habitat resources to meet the needs associated with lactation and the accumulation of fat reserves to survive when resources are less abundant. Because of the large scales at which habitat and resource data are usually available, information on how female migratory caribou select habitat and resources at fine scales in the wild is lacking. To document selection of summer feeding sites, we equipped 52 female caribou with camera collars from 2016 to 2018. We collected a total of 65,150 10-sec videos between June 1st and September 1st for three years with contrasted spring phenology. We determined the selection at the feeding site scale (3rd scale of Johnson) and food item scale (4th scale of Johnson) using resource selection probability functions. This data base contains the data of the behaviors observed, habitat used as feeding site, habitat unused has habitat, consumed and unconsumed resources, insect presence and other variables.雌性迁徙驯鹿（Rangifer tarandus）依赖夏季栖息地资源的可获得性，以满足泌乳需求并积累脂肪储备，从而在资源匮乏时段维持生存。由于栖息地与资源数据通常以大尺度采集，当前学界关于野生雌性迁徙驯鹿如何在精细尺度上选择栖息地与资源的相关研究仍较为匮乏。为探明夏季觅食位点的选择规律，我们于2016至2018年间为52头雌性驯鹿佩戴了摄像项圈。在三年春季物候存在差异的背景下，我们于每年6月1日至9月1日期间共收集了65150段时长为10秒的视频。我们采用资源选择概率函数，分别在觅食位点尺度（约翰逊第三尺度）与食物项目尺度（约翰逊第四尺度）上量化了其选择偏好。本数据集包含观测得到的行为数据、作为觅食位点的生境数据、未被利用的生境数据、已消耗与未消耗的资源数据、昆虫存在情况及其他相关变量。