Epizootic hemorrhagic disease virus (EHDV) and bluetongue virus (BTV) are vector-borne orbiviruses affecting ranched and wild white-tailed deer (Odocoileus virginianus) in North America. Currently, limited data exist on EHDV and BTV transmission dynamics in ranched and wild herds. To identify long-term site-specific EHDV and BTV intervention strategies (e.g., integrated pest or animal husbandry management), it is important to understand inter-annual home range fidelity (site fidelity). This study examined inter-annual site fidelity of ranched and wild deer in FL, USA. We estimated and compared inter-annual site fidelity of individual ranched and wild deer during the EHDV and BTV transmission season (May 1–October 31) for two consecutive years. GPS collars were attached to 11 wild and 4 ranched animals. Inter-annual site fidelity was calculated using the overlap function in the continuous-time movement modeling (ctmm) package in R, which estimates a Bhattacharyya coefficient (BC) between years. BC values range from 0 to 1, with values closer to 1 representing high degrees of overlap (site fidelity) between annual home ranges. The mean BC overlap was 0.876 (± 0.056 SE) and 0.831 (± 0.108 SE) for wild and ranched animals, respectively. We observed high levels of inter-annual site fidelity for 10 of 11 wild deer and 3 of 4 ranched deer. High inter-annual home range fidelity suggests EHDV and BTV intervention strategies, such as food plot (wild, ranches) or feeder (ranches) movements, or exclusion fencing to reduce deer time in vector habitat, may have multi-year impacts.

流行性出血性疾病病毒（EHDV）和蓝舌病病毒（BTV）是媒介传播的带菌病毒，会影响牧场和野生白尾鹿（Odocoileus virginianus）。目前，关于牧场和野生畜群中EHDV和BTV传播动态的数据有限。为了确定针对特定场所的长期EHDV和BTV干预策略（例如，病虫害或畜牧业综合管理），重要的是要了解年度间的家庭保真度（场所保真度）。这项研究检查了美国佛罗里达州牧场和野鹿的年际保真度。我们估计并比较了连续两年EHDV和BTV传播季节（5月1日至10月31日）个体牧场和野鹿的年际保真度。GPS项圈连接到11只野生和4只牧场动物。使用R中的连续时间运动建模（ctmm）包中的重叠函数来计算年际站点保真度，该函数可估计Bhattacharyya系数（BC）年之间。BC值的范围从0到1，更接近1的值表示年度家庭范围之间的高度重叠（站点保真度）。野生和牧场动物的平均BC重叠分别为0.876（±0.056 SE）和0.831（±0.108 SE）。我们观察到11头野鹿中的10头和4头野鹿中的3头的年际地点保真度很高。较高的年际范围保真度表明，EHDV和BTV干预策略（例如食物田（野生，牧场）或饲养者（牧场）移动），或为减少媒介栖息地中的鹿时间而设置的围栏可能会产生多年影响。