Drew M L, Samuel W M
J Wildl Dis. 1985 Jul;21(3):274-82. doi: 10.7589/0090-3558-21.3.274.
The larval stage of the winter tick, Dermacentor albipictus, was studied under field conditions in central Alberta, Canada. Larvae ascended vegetation in autumn, possibly in response to photoperiod. Numbers found by flagging increased from early September to early October and decreased gradually to zero by December. Larvae clumped on the tips of vegetation approximately 1-1.5 m off the ground, and did not exhibit a diurnal, vertical migration. Activity was temperature dependent and no obvious preference of vegetation species for ascension was detected. Transmission of larvae to moose was probably facilitated by synchrony of the larval activity period with the moose breeding season in autumn.
对加拿大艾伯塔省中部草原革蜱（Dermacentor albipictus）的幼虫阶段进行了野外研究。幼虫在秋季爬上植被，可能是对光周期的反应。通过挥旗法发现的幼虫数量从9月初到10月初增加，到12月逐渐减少至零。幼虫聚集在离地面约1 - 1.5米的植被顶端，没有表现出昼夜垂直迁移。活动取决于温度，未检测到幼虫对攀爬植被种类有明显偏好。幼虫活动期与秋季驼鹿繁殖季节的同步性可能促进了幼虫向驼鹿的传播。
