干旱区生态环境知识资源中心(Arid): How to Stick the Landing: Kangaroo Rats Use Their Tails to Reorient during Evasive Jumps Away from Predators

Arid

DOI	10.1093/icb/icab043
	How to Stick the Landing: Kangaroo Rats Use Their Tails to Reorient during Evasive Jumps Away from Predators
	Schwaner, M. Janneke; Freymiller, Grace A.; Clark, Rulon W.; McGowan, Craig P.
通讯作者	Schwaner, MJ (corresponding author)，Univ Idaho, Dept Biol, 875 Perimeter Dr, Moscow, ID 83844 USA.
会议名称	Symposium on An Evolutionary Tail - Evo-Devo, Structure and Function of Post-Anal Appendages / Annual Meeting of the Society-for-Integrative-and-Comparative-Biology (SICB)
会议日期	JAN 03-FEB 28, 2021
会议地点	ELECTR NETWORK
英文摘要	Synopsis Tails are widespread in the animal world and play important roles in locomotor tasks, such as propulsion, maneuvering, stability, and manipulation of objects. Kangaroo rats, bipedal hopping rodents, use their tail for balancing during hopping, but the role of their tail during the vertical evasive escape jumps they perform when attacked by predators is yet to be determined. Because we observed kangaroo rats swinging their tails around their bodies while airborne following escape jumps, we hypothesized that kangaroo rats use their tails to not only stabilize their bodies while airborne, but also to perform aerial re-orientations. We collected video data from free-ranging desert kangaroo rats (Dipodomys deserti) performing escape jumps in response to a simulated predator attack and analyzed the rotation of their bodies and tails in the yaw plane (about the vertical-axis). Kangaroo rat escape responses were highly variable. The magnitude of body re-orientation in yaw was independent of jump height, jump distance, and aerial time. Kangaroo rats exhibited a stepwise re-orientation while airborne, in which slower turning periods corresponded with the tail center of mass being aligned close to the vertical rotation axis of the body. To examine the effect of tail motion on body re-orientation during a jump, we compared average rate of change in angular momentum. Rate of change in tail angular momentum was nearly proportional to that of the body, indicating that the tail reorients the body in the yaw plane during aerial escape leaps by kangaroo rats. Although kangaroo rats make dynamic 3D movements during their escape leaps, our data suggest that kangaroo rats use their tails to control orientation in the yaw plane. Additionally, we show that kangaroo rats rarely use their tail length at full potential in yaw, suggesting the importance of tail movement through multiple planes simultaneously.
来源出版物	INTEGRATIVE AND COMPARATIVE BIOLOGY
ISSN	1540-7063
EISSN	1557-7023
出版年	2021
卷号	61
期号	2
出版者	OXFORD UNIV PRESS INC
类型	Article; Proceedings Paper
语种	英语
开放获取类型	Bronze
收录类别	SCI-E ; CPCI-S
WOS记录号	WOS:000700055200008
WOS关键词	AERIAL MOVEMENT ; SIMULATION ; INERTIA ; BALANCE
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/379060
作者单位	[Schwaner, M. Janneke; McGowan, Craig P.] Univ Idaho, Dept Biol, 875 Perimeter Dr, Moscow, ID 83844 USA; [Freymiller, Grace A.; Clark, Rulon W.] San Diego State Univ, Dept Biol, 5500 Campanile Dr, San Diego, CA 92182 USA; [Freymiller, Grace A.] Univ Calif Riverside, Dept Evolut Ecol & Organismal Biol, 900 Univ Ave, Riverside, CA 92521 USA; [McGowan, Craig P.] WWAMI Med Educ Program, 875 Perimeter Dr, Moscow, ID 83844 USA
推荐引用方式 GB/T 7714	Schwaner, M. Janneke,Freymiller, Grace A.,Clark, Rulon W.,et al. How to Stick the Landing: Kangaroo Rats Use Their Tails to Reorient during Evasive Jumps Away from Predators[C]:OXFORD UNIV PRESS INC,2021.