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Keywords: beetle
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Journal Articles
J Exp Biol (2022) 225 (9): jeb243966.
Published: 29 April 2022
... 2 consumption is calculated from electrolytic charge transfer. The effects of developmental stage, body mass and temperature on O 2 consumption of Tenebrio molitor beetles were easily measured by the apparatus. This straightforward design is a significant innovation in that it provides continuous...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (21): 4024–4034.
Published: 1 November 2017
... circadian cycles, each consisting of a less-responsive and more-responsive period, in a circabidian oscillation, and the circabidian rhythm is driven by the circadian clock. A mark–recapture study showed that beetles repeatedly appeared on the same tree approximately every 2 days. However, the periodicity...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2008) 211 (21): 3409–3420.
Published: 1 November 2008
... compressions are associated with excurrent gas exchange in the ground beetle Pterostichus stygicus , we used flow-through respirometry and synchrotron x-ray phase-contrast imaging to simultaneously record CO 2 emission and observe morphological changes in the major tracheae. Each observed tracheal compression...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2008) 211 (12): 1958–1963.
Published: 15 June 2008
...T. Eimüller; P. Guttmann; S. N. Gorb SUMMARY For the first time, the terminal elements (spatulae) of setal (hairy)attachment devices of the beetle Gastrophysa viridula (Coleoptera,Chrysomelidae) and the fly Lucilia caesar (Diptera, Calliphoridae)were studied using transmission X-ray microscopy...
Journal Articles
Journal Articles
J Exp Biol (2003) 206 (8): 1309–1318.
Published: 15 April 2003
...Marcus J. Byrne; Frances D. Duncan SUMMARY The role of the subelytral cavity in flightless beetle species as an adaptation to water saving in arid habitats is still in dispute. We found that relatively little CO 2 was released from the subelytral cavity of a large apterous beetle Circellium bacchus...
Journal Articles
Journal Articles
J Exp Biol (2000) 203 (17): 2667–2689.
Published: 1 September 2000
...Robert K. Josephson; Jean G. Malamud; Darrell R. Stokes ABSTRACT The basalar muscle of the beetle Cotinus mutabilis is a large, fibrillar flight muscle composed of approximately 90 fibers. The paired basalars together make up approximately one-third of the mass of the power muscles of flight...
Journal Articles
Journal Articles
J Exp Biol (1998) 201 (15): 2243–2251.
Published: 1 August 1998
.... In general, the magnitude of the thermal hysteresis depends upon the specific activity and concentration of the AFP. This study describes several low-molecular-mass solutes that enhance the thermal hysteresis activity of an AFP from overwintering larvae of the beetle Dendroides canadensis . The most active...
Journal Articles
Journal Articles
J Exp Biol (1998) 201 (9): 1307–1313.
Published: 1 May 1998
...Andrew R. Parker; David R. Mckenzie; Maryanne C. J. Large ABSTRACT The light reflectors in the beetles Calloodes grayanus and Anoplognathus parvulus are examined. Contrasting multilayer reflectors are revealed. Calloodes grayanus appears a weak green colour, matching its background leaves, while...
Journal Articles
J Exp Biol (1997) 200 (3): 601–606.
Published: 1 February 1997
...T. G. Forrest; M. P. Read; H. E. Farris; R. R. Hoy ABSTRACT We describe the paired hearing organ of the scarab beetle Euetheola humilis . The auditory structures of the beetle are typical of other insect ears in that they have a thinned tympanic membrane backed by a tracheal airsac with associated...
Journal Articles
J Exp Biol (1993) 182 (1): 283–289.
Published: 1 September 1993
...Karl Erik Zachariassen; Sigrun Einarson ABSTRACT Tenebrionid beetles are an important element of the fauna on the African dry savanna. In contrast to the majority of savanna insect groups, which spend the dry season as larvae, the tenebrionids pass the dry season as adults. The adult tenebrionids...