Temperature effects on the jumping performance of house crickets

SM Deban, CV Anderson - Journal of Experimental Zoology …, 2021 - Wiley Online Library
Journal of Experimental Zoology Part A: Ecological and Integrative …, 2021Wiley Online Library
Insect jumping and other explosive animal movements often make use of elastic‐recoil
mechanisms to enhance performance. These mechanisms circumvent the intrinsic rate
limitations on muscle shortening, allowing for greater power production as well as thermal
robustness of the associated movements. Here we examine the performance and
temperature effects on jumping in the house cricket, Acheta domesticus, using high‐speed
imaging and inverse dynamics analysis. We find that adult house crickets jumped with …
Abstract
Insect jumping and other explosive animal movements often make use of elastic‐recoil mechanisms to enhance performance. These mechanisms circumvent the intrinsic rate limitations on muscle shortening, allowing for greater power production as well as thermal robustness of the associated movements. Here we examine the performance and temperature effects on jumping in the house cricket, Acheta domesticus, using high‐speed imaging and inverse dynamics analysis. We find that adult house crickets jumped with greater performance than would be possible using direct muscle shortening, generating a peak power of over 2000 W/kg of muscle mass and maintaining high performance across the entire tested range of body temperatures (12–32°C). Performance declined at the lowest temperature (12°C), yet jump power still exceeds available muscle power. These results reveal that Acheta domesticus makes use of an elastic‐recoil mechanism that enhances both the performance and thermal robustness of jumping.
Wiley Online Library
以上显示的是最相近的搜索结果。 查看全部搜索结果