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Keywords: spiracle
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Journal Articles
J Exp Biol (2016) 219 (19): 3126–3136.
Published: 1 October 2016
... Spiracle Although insects typically are thought of as ‘terrestrial’ or ‘aquatic’, these labels do not capture the biology of some species. Aquatic species, for example, usually have one or more terrestrial stages, most frequently the adult. Other species are terrestrial but spend at least some time...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (18): 2840–2846.
Published: 1 September 2015
... to the gas-filled tracheal system through spiracles on the cuticle. Here, we measure P O 2 of the water and within the plastron gas with O 2 -sensing fibre optics to understand the effectiveness and limitations of the gas exchanger. The difference in P O 2 is highest in stagnant water and decreases...
Journal Articles
J Exp Biol (2013) 216 (23): 4473–4482.
Published: 1 December 2013
...Erica C. Heinrich; Matthew J. McHenry; Timothy J. Bradley SUMMARY Insects exchange respiratory gases via an extensive network of tracheal vessels that open to the surface of the body through spiracular valves. Although gas exchange is known to increase with the opening of these spiracles...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (21): 3596–3604.
Published: 1 November 2011
...Jennifer Hummel; Manfred Kössl; Manuela Nowotny SUMMARY In the auditory system of bushcrickets, sound can reach the receptors via two different paths: (i) by acting on the outside of the tympana situated on both sides of each foreleg or (ii) through the acoustic trachea that opens at a spiracle...
Includes: Supplementary data
Journal Articles
J Exp Biol (2005) 208 (24): 4671–4678.
Published: 15 December 2005
... to graded hyperoxia would be interesting. We know from studies of the DGC (see reviews mentioned in the Introduction) that in insects expressing the DGC,internal P CO 2 can rise to at least 4–5 kPa before the O phase is initiated, yielding an equivalent partial pressure gradient across the spiracles...
Journal Articles
J Exp Biol (2003) 206 (8): 1309–1318.
Published: 15 April 2003
... during simultaneous measurements of CO 2 emission from the anterior mesothoracic spiracles and posterior body, which included the subelytral spiracles. However, when we sampled air directly from inside the subelytral cavity, we discovered that this pattern was reversed. A discontinuous gas exchange cycle...
Journal Articles
J Exp Biol (2002) 205 (16): 2489–2497.
Published: 15 August 2002
... of respiratory gases is unidirectional from anterior to posterior and (ii) that the coordinated action of the spiracles directs this flow. We tested these assumptions by simultaneously measuring CO 2 and O 2 exchange at the anterior mesothorax,independently of gas exchange in the posterior body, which included...
Journal Articles
J Exp Biol (2002) 205 (7): 1019–1029.
Published: 1 April 2002
... and chelicerate species. Another scolopendromorph and a lithobiomorph species exhibit weak periodic patterns, and a scutigermorph species shows continuous gas exchange. A crucial component for DGCs in tracheated arthropods is the presence of occludible spiracles. However, on the basis of studies of temperate...
Journal Articles
J Exp Biol (2001) 204 (13): 2209–2220.
Published: 1 July 2001
...Lutz T. Wasserthal SUMMARY Intratracheal pressure during tethered flight was analyzed at the anterior spiracles and mesoscutellar air sacs in the hawkmoth Manduca sexta using electronic pressure sensors. CO 2 emission from the anterior spiracles and the posterior thoracic and abdominal spiracles...