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Keywords: grasshopper
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Journal Articles
J Exp Biol (2019) 222 (23): jeb208751.
Published: 5 December 2019
... is achieved in the face of conflicting directional cues in non-human animals, although this is relevant for many species in which sound localization in noisy conditions mediates mate finding or predator avoidance. We studied the effects of conflicting directional cues in male grasshoppers, Chorthippus...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (1): 64–72.
Published: 1 January 2016
... artificial diets containing near-optimal content of other nutrients for the grasshopper Schistocerca americana . Over much of the ecologically relevant range, when consuming single diets over a lifetime, higher P stimulated growth rates and increased survival, with an optimal dietary %P of 0.25–0.50% when...
Journal Articles
J Exp Biol (2013) 216 (4): 641–655.
Published: 15 February 2013
... aerodynamic characteristics of wing flapping flight. * Author for correspondence ( gabbiani@bcm.edu ) 13 7 2012 22 10 2012 © 2013. 2013 escape behavior insect flight grasshopper predator escape The American grasshopper ( Schistocerca americana ) has as its natural...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (15): 3003–3012.
Published: 1 August 2005
... create problems for oxygen delivery in older animals? We forced developing American locust grasshoppers ( Schistocerca americana ) to jump repeatedly and examined the effect of development on power output, endurance, lactate concentration, oxygen consumption and the oxygen sensitivity of jump performance...
Journal Articles
J Exp Biol (2004) 207 (3): 497–508.
Published: 22 January 2004
...Kendra J. Greenlee; Jon F. Harrison SUMMARY We tested the hypothesis that oxygen delivery from the atmosphere to the tissues becomes more difficult as grasshoppers increase in body size throughout development due to increases in tracheal length. If this is true,then older, larger grasshoppers...
Journal Articles
J Exp Biol (2003) 206 (22): 3991–4002.
Published: 15 November 2003
... exteroception proprioception solitary solitarious gregarious grasshopper Schistocerca gregaria Locusts have the remarkable ability to change between two morphologically,physiologically and behaviourally distinct forms depending on their population density ( Uvarov, 1966 ). This density-dependent...
Journal Articles
J Exp Biol (1991) 158 (1): 391–410.
Published: 1 July 1991
...Andreas Stumpner; Bernhard Ronacher ABSTRACT Auditory interneurones originating in the metathoracic ganglion of females of the grasshopper Chorthippus biguttulus can be classified as local (SN), bisegmental (BSN), T-shaped (TN) and ascending neurones (AN). A comparison of branching patterns...
Journal Articles
J Exp Biol (1991) 158 (1): 411–430.
Published: 1 July 1991
...Andreas Stumpner; Bernhard Ronacher; Otto von Helversen ABSTRACT Auditory interneurones originating in the metathoracic ganglion of females of the grasshopper Chorthippus biguttulus were investigated with respect to their processing of models of the male’s song. In these models two temporal...
Journal Articles
J Exp Biol (1991) 157 (1): 565–571.
Published: 1 May 1991
... DUM neurones, with bilaterally symmetrical peripheral axons, have been most extensively studied in grasshoppers and locusts. DUM cells in the metathoracic ganglion modulate tension of skeletal muscle, potentiate synaptic transmission at neuromuscular junctions and slow a myogenic rhythm ( Evans...
Journal Articles
J Exp Biol (1988) 140 (1): 421–435.
Published: 1 November 1988
...Jon M. Harrison ABSTRACT In this study, I examine the effect of temperature on haemolymph acid-base status in vivo and in vitro in the two-striped grasshopper Melanoplus bivittatus. Melanoplus bivittatus experience wide (up to 40 °C) diurnal body temperature fluctuations in the field, but maintain...
Journal Articles
J Exp Biol (1986) 122 (1): 387–411.
Published: 1 May 1986
...Karen J. Thompson ABSTRACT The ovipositor appendages of acridid insects (grasshoppers and locusts) consist of two pairs of shovel-shaped valves that are used to dig a deep chamber in the ground for egg burial, to manipulate the eggs, and to assist in capping the egg-pod with froth. During...
Journal Articles
J Exp Biol (1986) 122 (1): 413–425.
Published: 1 May 1986
...Karen J. Thompson ABSTRACT Transection of the ventral nerve cord of female grasshoppers activates the rhythmical motor programme for oviposition digging. Electrical stimulation of the cut nerve cord had the following effects on elicited oviposition motor activity: (i) short- and long-lasting...
Journal Articles
J Exp Biol (1985) 116 (1): 121–139.
Published: 1 May 1985
...Carol I. Miles ABSTRACT Grasshopper mechanosensory hair neurones respond to displacement of their associated hairs in a temperature sensitive manner: comparable increases in the number of spikes per stimulus result from increases in temperature with constant stimulus strengths and from increasing...
Journal Articles
J Exp Biol (1983) 107 (1): 509–513.
Published: 1 November 1983
...Edmund A. Arbas ABSTRACT Aerial locomotion of many insects involves jumping or dropping from elevated positions. Flight and aerobatic manoeuvring often follow locust jumps, while jumps from elevated positions can carry flightless grasshoppers several metres through the air. Leg postures...