High-speed video analysis of jumping in Locusta migratoria

10.7287/peerj.preprints.2877v2 ◽

2019 ◽

Author(s):

Xiaojuan Mo ◽

Wenjie Ge ◽

Donato Romano ◽

Elisa Donati ◽

Cesare Stefanini ◽

...

Keyword(s):

Video Analysis ◽

High Speed ◽

Locusta Migratoria ◽

Present Contribution ◽

Jumping Performance ◽

High Speed Video ◽

Takeoff Angle

Among insects, locusts are widely recognized for their excellent jumping performances. Indeed, jumping helps locusts to avoid predators as well as to initiate flight. In the present contribution, we employed high-speed videos to analyze the jumping performance of Locusta migratoria L. from ground with different toughness. Results outlined that L. migratoria can prolong their takeoff time to get bigger takeoff velocity to adapt to different terrains, and takeoff velocity has no connection with takeoff angle.

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Jumping performance of Locusta migratoria and relationship between jumping performance and ground roughness

10.7287/peerj.preprints.2877v1 ◽

2017 ◽

Author(s):

Xiaojuan Mo ◽

Wenjie Ge ◽

Donato Romano ◽

Elisa Donati ◽

Cesare Stefanini ◽

...

Keyword(s):

Theoretical Model ◽

High Speed ◽

Smooth Surface ◽

Locusta Migratoria ◽

Maximum Acceleration ◽

Jumping Performance ◽

Takeoff Angle

Locusts are famous for its excellent jumping performance. Jumping helps locusts avoid predators and initiate flight. In this paper, high-speed videos are recorded to analyze the jumping performance of Locusta migratoria Linnaeus from ground with different roughness. By the established simplified theoretical model, we calculated L.migratoria normally can get 1.8318 m/s takeoff velocity and maximum acceleration about 66.72 m/s2 with takeoff angle at about 36°. Locusts are prone to slip when jumping from smooth surface especially for locusts with only one leg. The analyzed results show that locusts can increase their takeoff acceleration to get bigger takeoff velocity to adapt to different terrains, and takeoff velocity has no connection with takeoff angle while bigger takeoff angle have the possibility to help locusts to jump successfully with only one leg left or from smooth surface.

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Quantitative High Speed Video Analysis of Biopolymer Encapsulated Cells while Capsule Formation

IFMBE Proceedings - 4th European Conference of the International Federation for Medical and Biological Engineering ◽

10.1007/978-3-540-89208-3_540 ◽

2009 ◽

pp. 2255-2258 ◽

Cited By ~ 3

Author(s):

I. Meiser ◽

S. C. Müller ◽

M. M. Gepp ◽

H. Zimmermann ◽

F. Ehrhart

Keyword(s):

Video Analysis ◽

High Speed ◽

Capsule Formation ◽

Encapsulated Cells ◽

High Speed Video

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Impact of Different Developmental Instars on Locusta migratoria Jumping Performance

Applied Bionics and Biomechanics ◽

10.1155/2020/2797486 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11 ◽

Cited By ~ 2

Author(s):

Xiaojuan Mo ◽

Donato Romano ◽

Mario Milazzo ◽

Giovanni Benelli ◽

Wenjie Ge ◽

...

Keyword(s):

High Speed ◽

Developmental Stages ◽

Locusta Migratoria ◽

Biomechanical Model ◽

Elastic Parameter ◽

Leg Length ◽

Jumping Performance ◽

Locomotion Behavior ◽

Geometrical Data ◽

Jumping Robot

Ontogenetic locomotion research focuses on the evolution of locomotion behavior in different developmental stages of a species. Unlike vertebrates, ontogenetic locomotion in invertebrates is poorly investigated. Locusts represent an outstanding biological model to study this issue. They are hemimetabolous insects and have similar aspects and behaviors in different instars. This research is aimed at studying the jumping performance of Locusta migratoria over different developmental instars. Jumps of third instar, fourth instar, and adult L. migratoria were recorded through a high-speed camera. Data were analyzed to develop a simplified biomechanical model of the insect: the elastic joint of locust hind legs was simplified as a torsional spring located at the femur-tibiae joint as a semilunar process and based on an energetic approach involving both locomotion and geometrical data. A simplified mathematical model evaluated the performances of each tested jump. Results showed that longer hind leg length, higher elastic parameter, and longer takeoff time synergistically contribute to a greater velocity and energy storing/releasing in adult locusts, if compared to young instars; at the same time, they compensate possible decreases of the acceleration due to the mass increase. This finding also gives insights for advanced bioinspired jumping robot design.

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