干旱区生态环境知识资源中心(Arid): Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion

Arid

DOI	10.1242/jeb.242677
	Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion
	Woehrl, Toni; Richter, Adrian; Guo, Shihui; Reinhardt, Lars; Nowotny, Manuela; Blickhan, Reinhard
通讯作者	Wohrl, T (corresponding author), Friedrich Schiller Univ, Inst Zool & Evolutionary Res, D-07743 Jena, Germany. ; Wohrl, T (corresponding author), Friedrich Schiller Univ, Mot Sci, D-07749 Jena, Germany.
来源期刊	JOURNAL OF EXPERIMENTAL BIOLOGY
ISSN	0022-0949
EISSN	1477-9145
出版年	2021
卷号	224 期号:15
英文摘要	Animals are known to exhibit different walking behaviors in hilly habitats. For instance, cats, rats, squirrels, tree frogs, desert iguana, stick insects and desert ants were observed to lower their body height when traversing slopes, whereas mound-dwelling iguanas and wood ants tend to maintain constant walking kinematics regardless of the slope. This paper aims to understand and classify these distinct behaviors into two different strategies against toppling for climbing animals by looking into two factors: (i) the torque of the center of gravity (CoG) with respect to the critical tipping axis, and (ii) the torque of the legs, which has the potential to counterbalance the CoG torque. Our comparative locomotion analysis on level locomotion and inclined locomotion exhibited that primarily only one of the proposed two strategies was chosen for each of our sample species, despite the fact that a combined strategy could have reduced the animal's risk of toppling over even more. We found that Cataglyphis desert ants (species Cataglyphis fortis) maintained their upright posture primarily through the adjustment of their CoG torque (geometric strategy), and Formica wood ants (species Formica tufa), controlled their posture primarily by exerting leg torques (adhesive strategy). We further provide hints that the geometric strategy employed by Cataglyphis could increase the risk of slipping on slopes as the leg-impulse substrate angle of Cataglyphis hindlegs was lower than that of Formica hindlegs. In contrast, the adhesion strategy employed by Formica front legs not only decreased the risk of toppling but also explained the steeper leg-impulse substrate angle of Formica hindlegs which should relate to more bending of the tarsal structures and therefore to more microscopic contact points, potentially reducing the risk of hindleg slipping.
英文关键词	Formica Cataglyphis Stability margin Torque Tipping axis Slipping
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000685506400020
WOS关键词	HINDLIMB KINEMATICS ; QUADRUPEDAL LOCOMOTION ; ATTACHMENT PADS ; MOTOR PATTERNS ; ANTS ; WALKING ; POSTURE ; INSECT ; SPEED ; FORCE
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363864
作者单位	[Woehrl, Toni; Richter, Adrian; Nowotny, Manuela] Friedrich Schiller Univ, Inst Zool & Evolutionary Res, D-07743 Jena, Germany; [Woehrl, Toni; Reinhardt, Lars; Blickhan, Reinhard] Friedrich Schiller Univ, Mot Sci, D-07749 Jena, Germany; [Guo, Shihui] Xiamen Univ, Sch Informat, Xiamen 361005, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Woehrl, Toni,Richter, Adrian,Guo, Shihui,et al. Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion[J],2021,224(15).
APA	Woehrl, Toni,Richter, Adrian,Guo, Shihui,Reinhardt, Lars,Nowotny, Manuela,&Blickhan, Reinhard.(2021).Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion.JOURNAL OF EXPERIMENTAL BIOLOGY,224(15).
MLA	Woehrl, Toni,et al."Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion".JOURNAL OF EXPERIMENTAL BIOLOGY 224.15(2021).