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Keywords: Manduca sexta
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Journal Articles
J Exp Biol (2018) 221 (22): jeb179259.
Published: 19 November 2018
... tracking dynamics. In the flower wake, the leading edge vortex does not burst and extends continuously across the wings and thorax. Manduca sexta Flight Flower tracking Leading edge vortex Unsteady flow System identification Flying animals rely on maneuverability to survive in unsteady...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (21): jeb186338.
Published: 29 October 2018
... by temperature. However, the effect of temperature on hemolymph viscosity is unknown. We used Manduca sexta larvae to measure hemolymph viscosity across a range of physiologically relevant temperatures. Measurements were taken from 0 to 45°C using a cone and plate viscometer in a sealed environmental...
Includes: Supplementary data
Journal Articles
In collection:
Neuroethology
J Exp Biol (2018) 221 (13): jeb173856.
Published: 01 July 2018
... Manduca sexta to study neuromechanical strategies of soft-bodied scansorial locomotion. Manduca locomotion critically depends on the timing of proleg grip release, which is mediated by the principal planta retractor muscle and its single motoneuron, PPR. During upright crawling, PPR firing frequency...
Journal Articles
J Exp Biol (2017) 220 (15): 2743–2747.
Published: 01 August 2017
... (EAAs) and one non-essential amino acid (NEAA) by the Carolina sphinx moth ( Manduca sexta ). On day one post-eclosion from the pupae, adult male moths oxidized greater amounts of larva-derived AAs than females, and more nectar-derived AAs after feeding. After 4 days of starvation, the opposite pattern...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (10): 1781–1786.
Published: 15 May 2017
...Dieter Wicher; Satoshi Morinaga; Lorena Halty-deLeon; Nico Funk; Bill Hansson; Kazushige Touhara; Monika Stengl ABSTRACT Manduca sexta females attract their mates with the release of a species-specific sex-pheromone blend, with bombykal ( E , Z )-10,12-hexadecadienal and ( E , E , Z )-10,12,14...
Journal Articles
J Exp Biol (2015) 218 (14): 2218–2225.
Published: 01 July 2015
...-dependent effects – effects of the order and duration of exposure to temperature – can also influence mean performance. We quantified the non-linear and time-dependent effects of diurnally fluctuating temperatures for larval growth rates in the tobacco hornworm, Manduca sexta L., with four main results...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (13): 2301–2308.
Published: 01 July 2014
... no aerodynamic role and are specific to two orders of insects (Diptera and Strepsiptera). Aside from the literature on halteres and recent work on the antennae of the hawkmoth Manduca sexta , it is unclear how other flying insects use mechanosensory information to control body dynamics. The...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (24): 4567–4579.
Published: 15 December 2013
... flying animals. In order to examine these interactions, we trained seven hawkmoths ( Manduca sexta ) (wingspan ~9 cm) to fly and feed in a wind tunnel under steady flow (controls) and in the von Kármán vortex street of vertically oriented cylinders (two different cylinders with diameters of 10 and 5 cm...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (24): 4703–4711.
Published: 15 December 2013
... that this assumption is incorrect. We found that the respiratory system increases substantially in both mass and volume within the last larval instar of Manduca sexta larvae, and that the growth of the respiratory system changes with diet quality, potentially as a consequence of shifting metabolic...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (9): 1523–1536.
Published: 01 May 2013
... investigated the visual–abdominal reflex displayed by the hawkmoth Manduca sexta to determine its role in flight control. We measured the open-loop stimulus–response characteristics (measured as a transfer function) between the visual stimulus and abdominal response in tethered moths. The transfer function...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (3): 379–387.
Published: 01 February 2013
...Linnea I. van Griethuijsen; Kelly M. Banks; Barry A. Trimmer SUMMARY Aimed movements require that an animal accurately locates the target and correctly reaches that location. One such behavior is the defensive strike seen in Manduca sexta larva. These caterpillars respond to noxious mechanical...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2012) 215 (20): 3631–3638.
Published: 15 October 2012
... expected to produce asymmetric flight forces and torques and thus destabilize the animal in addition to reducing its total wing size. We measured the kinematic and neuromuscular responses of hawkmoths ( Manduca sexta ) hovering in free flight with asymmetrically damaged wings via high-speed videography and...
Includes: Supplementary data
Journal Articles
J Exp Biol (2010) 213 (13): 2303–2309.
Published: 01 July 2010
..., and their powerful appendages provide grip independent of their dimensional changes. Here, we show that the anterograde wave of movement seen in the crawling tobacco hornworm, Manduca sexta , is mediated by co-activation of dorsal and ventral muscles within a body segment, rather than by antiphasic...
Journal Articles
J Exp Biol (2010) 213 (8): 1272–1280.
Published: 15 April 2010
...N. M. Kalberer; C. E. Reisenman; J. G. Hildebrand SUMMARY The primary olfactory centres of the sphinx moth Manduca sexta , the antennal lobes, contain a small number of sexually dimorphic glomeruli: the male-specific macroglomerular complex and the large female glomeruli. These glomeruli play...
Journal Articles
J Exp Biol (2010) 213 (7): 1133–1142.
Published: 01 April 2010
... multiple contact points during crawling by the tobacco hornworm ( Manduca sexta ). Most abdominal prolegs bear similar body weight during their stance phase. Interestingly, forward reaction forces did not come from pushing off the substrate. Instead, most positive reaction forces came from anterior...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (21): 3448–3454.
Published: 01 November 2009
... conditions on embryo development time and survival, and(3) tested embryonic metabolic rates over increasing temperatures. Our results show that Datura wrightii leaves buffer Manduca sexta eggs from fatally high ambient temperatures in the southwestern USA. Moreover, small differences in temperature profiles...
Journal Articles
J Exp Biol (2009) 212 (12): 1840–1848.
Published: 15 June 2009
... Manduca sexta using RNA interference (RNAi) to prevent expression of the precursor protein proPSP. We show that infection with the insect-specific bacterial pathogen Photorhabdus luminescens and non-pathogenic Escherichia coli induces proPSP mRNA transcription in the insect fat body but not in hemocytes...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (11): 1611–1619.
Published: 01 June 2009
... it appears to be established that the cation pump is a two-component system of a H + -transporting V-ATPase and a cation/nH + antiporter. After tracing the discovery of the V-ATPase as the energizer of K + /nH + antiport in the larval midgut of the tobacco hornworm Manduca sexta we show that research...
Journal Articles
J Exp Biol (2009) 212 (10): 1455–1462.
Published: 15 May 2009
...-bodied larval stage of Manduca sexta . We found that crawling and climbing are accomplished using the same movements,with both segment timing and proleg lift indistinguishable in horizontal and vertical locomotion. Minor differences were detected in stride length and in the delay between crawls, which...
Journal Articles
J Exp Biol (2009) 212 (7): 1021–1031.
Published: 01 April 2009
... animals can change their body shape from moment-to-moment, information about body configuration could be particularly important for coordination. This study uses larval stage Lepidoptera( Manduca sexta ) to examine how the longitudinal stretch receptor organ (SRO) responds to behaviorally appropriate...
Includes: Multimedia, Supplementary data