Arid
DOI10.1242/jeb.134445
Increased muscular volume and cuticular specialisations enhance jump velocity in solitarious compared with gregarious desert locusts, Schistocerca gregaria
Rogers, Stephen M.1,2; Riley, Joanna1,3; Brighton, Caroline1,4; Sutton, Gregory P.1,3; Cullen, Darron A.1,5; Burrows, Malcolm1
通讯作者Rogers, Stephen M.
来源期刊JOURNAL OF EXPERIMENTAL BIOLOGY
ISSN0022-0949
EISSN1477-9145
出版年2016
卷号219期号:5页码:635-648
英文摘要

The desert locust, Schistocerca gregaria, shows a strong phenotypic plasticity. It can develop, depending upon population density, into either a solitarious or gregarious phase that differs in many aspects of behaviour, physiology and morphology. Prominent amongst these differences is that solitarious locusts have proportionately longer hind femora than gregarious locusts. The hind femora contain the muscles and energy-storing cuticular structures that propel powerful jumps using a catapult-like mechanism. We show that solitarious locusts jump on average 23% faster and 27% further than gregarious locusts, and attribute this improved performance to three sources: first, a 17.5% increase in the relative volume of their hind femur, and hence muscle volume; second, a 24.3% decrease in the stiffness of the energy-storing semi-lunar processes of the distal femur; and third, a 4.5% decrease in the stiffness of the tendon of the extensor tibiae muscle. These differences mean that solitarious locusts can generate more power and store more energy in preparation for a jump than can gregarious locusts. This improved performance comes at a cost: solitarious locusts expend nearly twice the energy of gregarious locusts during a single jump and the muscular co-contraction that energises the cuticular springs takes twice as long. There is thus a trade-off between achieving maximum jump velocity in the solitarious phase against the ability to engage jumping rapidly and repeatedly in the gregarious phase.


英文关键词Phase change Phenotypic plasticity Jumping Biomechanics Energy storage Muscle force
类型Article
语种英语
国家England ; USA ; Belgium
收录类别SCI-E
WOS记录号WOS:000371134700012
WOS关键词BEHAVIORAL PHASE-CHANGE ; PHENOTYPIC PLASTICITY ; KICKING MOVEMENTS ; AMERICAN LOCUST ; SELFISH HERD ; INSECTS ; NYMPHS ; PERFORMANCE ; MECHANISM ; COLORATION
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
来源机构Arizona State University ; University of Oxford
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/194387
作者单位1.Univ Cambridge, Dept Zool, Downing St, Cambridge CB2 3EJ, England;
2.Arizona State Univ, Sch Life Sci, POB 874601, Tempe, AZ 85287 USA;
3.Univ Bristol, Sch Biol Sci, 24 Tyndall Ave, Bristol BS8 1TH, Avon, England;
4.Univ Oxford, Dept Zool, Tinbergen Bldg,South Parks Rd, Oxford OX1 3PS, England;
5.Katholieke Univ Leuven, Inst Zool, Naamsestr 59,Box 2465, BE-3000 Leuven, Belgium
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GB/T 7714
Rogers, Stephen M.,Riley, Joanna,Brighton, Caroline,et al. Increased muscular volume and cuticular specialisations enhance jump velocity in solitarious compared with gregarious desert locusts, Schistocerca gregaria[J]. Arizona State University, University of Oxford,2016,219(5):635-648.
APA Rogers, Stephen M.,Riley, Joanna,Brighton, Caroline,Sutton, Gregory P.,Cullen, Darron A.,&Burrows, Malcolm.(2016).Increased muscular volume and cuticular specialisations enhance jump velocity in solitarious compared with gregarious desert locusts, Schistocerca gregaria.JOURNAL OF EXPERIMENTAL BIOLOGY,219(5),635-648.
MLA Rogers, Stephen M.,et al."Increased muscular volume and cuticular specialisations enhance jump velocity in solitarious compared with gregarious desert locusts, Schistocerca gregaria".JOURNAL OF EXPERIMENTAL BIOLOGY 219.5(2016):635-648.
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