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J Exp Biol (2019) 222 (10): jeb195503.
Published: 13 May 2019
... is a secondary plant metabolite found in some nectars that affects foraging in pollinators. In honeybees, caffeine increases foraging and recruitment to mediocre food sources, which might benefit the plant, but potentially harms the colonies. For the largest group of social bees, the stingless bees, the effect...
In collection:Comparative biomechanics of movement
David Deslauriers, Jon C. Svendsen, Janet Genz, Alex J. Wall, Henrik Baktoft, Eva C. Enders, W. Gary Anderson
J Exp Biol (2018) 221 (7): jeb164533.
Published: 29 March 2018
...David Deslauriers; Jon C. Svendsen; Janet Genz; Alex J. Wall; Henrik Baktoft; Eva C. Enders; W. Gary Anderson ABSTRACT In many animal species, performance in the early life stages strongly affects recruitment to the adult population; however, factors that influence early life history stages...
Elizabeth L. Franklin, Elva J. H. Robinson, James A. R. Marshall, Ana B. Sendova-Franks, Nigel R. Franks
J Exp Biol (2012) 215 (8): 1287–1292.
Published: 15 April 2012
...Elizabeth L. Franklin; Elva J. H. Robinson; James A. R. Marshall; Ana B. Sendova-Franks; Nigel R. Franks SUMMARY Learning is widespread in invertebrates. However, whether social insects improve their recruitment skills with experience is only beginning to be investigated. Tandem running is a one...
Includes: Supplementary data
J Exp Biol (2011) 214 (3): 469–475.
Published: 1 February 2011
... ) tuned to the caloric benefits of floral resources. Using infrared thermography, we tested the hypothesis that forager motivation to recruit nestmates for a food source is positively correlated with T th . We trained bees to a sucrose feeder located 5–100 m from the nest. Recruiting foragers had...
J Exp Biol (2010) 213 (16): 2770–2780.
Published: 15 August 2010
... in muscle length trajectory and the pattern of activation), at the level of the muscle ( via changes in the number of motor units recruited), and at the level of the whole animal (through the use of intermittent flight). Pectoralis muscle length trajectory and activity patterns were measured in vivo...
Includes: Supplementary data
J Exp Biol (2009) 212 (15): 2337–2348.
Published: 1 August 2009
..., both of which recruit nestmates. Our experiments suggest that during exploration the ants deposit a long-lasting pheromone that elicits a weak recruitment of nestmates, while when exploiting food the ants deposit a shorter lasting pheromone eliciting a much stronger recruitment. We further investigate...
J Exp Biol (2009) 212 (7): 1036–1052.
Published: 1 April 2009
...Nadja Schilling; Timna Fischbein; Evelyn P. Yang; David R. Carrier SUMMARY The extrinsic appendicular muscles of mammals have been suggested to impose parasagittal torques on the trunk that require recruitment of the oblique hypaxial muscles for stabilization. To determine if the recruitment...
J Exp Biol (2008) 211 (1): 150–162.
Published: 1 January 2008
... functions as an inverted strut at the shoulder during constant-speed running and to characterize the locomotor function of extrinsic muscles of the forelimb, we monitored changes in the recruitment of six muscles that span the shoulder (the m. pectoralis superficialis descendens, m. pectoralis profundus,m...
J Exp Biol (2007) 210 (21): 3789–3797.
Published: 1 November 2007
... muscles in these species contain a single muscle fibre type. Therefore, the power output is entirely determined by muscle activity and strain trajectory, rather than recruitment of motor units with different contractile properties as in many other vertebrate muscle systems. Relative EMG intensity...
J Exp Biol (2006) 209 (11): 2224–2237.
Published: 1 June 2006
... on analyses of shoulder anatomy and on a handful of descriptive electromyographic studies. To improve our understanding, we manipulated the locomotor forces of trotting dogs and monitored the resulting change in recruitment of five extrinsic muscles of the forelimb: m. serratus ventralis thoracis, m. serratus...
J Exp Biol (2005) 208 (20): 3933–3943.
Published: 15 October 2005
...James C. Nieh; Daniel Sánchez SUMMARY Stingless bees (Apidae, Meliponini) can recruit nestmates to good food sources. We present the first data showing that recruiting meliponine foragers at feeders and inside nests regulate their thoracic temperature according to net food profitability. Using...
J Exp Biol (2005) 208 (10): 1963–1970.
Published: 15 May 2005
...-mail: Thomas_Roberts@Brown.edu ) † Present address: Children's Hospital Boston, Department of Neurology, 300 Longwood Avenue, Boston, MA 02115, USA 23 2 2005 © The Company of Biologists Limited 2005 2005 locomotion biomechanics muscle power mechanical advantage recruitment human...
J Exp Biol (2001) 204 (21): 3737–3746.
Published: 1 November 2001
... of remote dance-followers are recruited coincides with the location of this phase-reversal phenomenon relative to the signal source. We propose that effective signal amplification by the phase-reversal phenomenon occurs when bees straddle a cell across which the phase reversal is expressed. Such a bee would...
J Exp Biol (1985) 115 (1): 125–136.
Published: 1 March 1985
... of the firing rates of motor units, and appears to provide a simple schema for controlling motor units; and (2) the firing rate/recruitment interaction which appears to en-hance the smoothness of the force output of a muscle. The evolution of these concepts has been expedited by the development of recent...