Breathe softly, beetle: Continuous gas exchange, water loss …
2008年1月1日 — The subelytral cavity may, in a sense, add a second level of control to the spiracles of beetles so equipped, perhaps allowing the spiracles to exchange gases without losing excessive water. The subelytral cavity is an air-filled …
This paper is a review of research and thought concerning an adaptation characteristic of desert tenebrionids, an air space between fused elytra and the dorsum of the abdomen called the subelytral cavity.
The role of the subelytral cavity in respiration in a tenebrionid ...
Thus the subelytral cavity plays a different role in respiration other than the elimination of CO(2) build-up. It is expected that other arid dwelling flightless beetles will also be shown to use the mesothoracic spiracle as the major route for CO(2) emission.
The role of the subelytral cavity in respiration in a tenebrionid ...
2003年4月1日 — Onymacris multistriata has a subelytral cavity yet uses the mesothoracic spiracles for gas exchange during quiescent and alert periods. This lends support to the theory that the subelytral cavity does not act as a respiratory water saving device in the manner previously thought.
Respiratory Strategies in Relation to Ecology and Behaviour in …
2021年11月17日 — The respiratory physiology of three diurnal ultraxerophilous tenebrionid beetles inhabiting either the dune slipface or gravel plain in the Namib Desert was investigated. The role of the mesothoracic spiracles and subelytral cavity in gas exchange was determined by flow-through respirometry.
Breathe softly, beetle: continuous gas exchange, water loss and the ...
Flightless, diurnal tenebrionid beetles are commonly found in deserts. They possess a curious morphological adaptation, the subelytral cavity (an air space beneath the fused elytra) the function of which is not completely understood. In the tenebrionid beetle Eleodes obscura, we measured abdominal m ….
The role of the subelytral cavity in respiration in a tenebrionid ...
2003年4月1日 — Their study raises the question as to whether all beetles which possess a subelytral cavity use the mesothoracic spiracles only for gas exchange, or the subelytral cavity is used by some beetles to reduce respiratory water loss in …
The role of the subelytral cavity in respiration in a tenebrionid ...
2003年5月1日 — This study measured the respiratory patterns in the tenebrionid beetle, Onymacris multistriata, using flow-through respirometry to measure carbon dioxide emission from the mesothoracic spiracles ...
The role of the subelytral cavity in respiration in a tenebrionid ...
Investigation of routes of evaporative water loss in the tenebrionid beetle Phrynocolus petrosus Gerstaecker from dry savanna in East Africa indicated that the average air humidity inside the subelytral cavity of normal intact beetles is close to saturation, and the water loss over the pronotal spiracles amounts to about 70%, and is thus the ...
Respiratory airflow in a wingless dung beetle
2002年8月15日 — The sealed subelytral cavity of many flightless beetle species is widely acknowledged to be an adaptation to water saving in arid-habitat species. However, this hypothesis relies on the acceptance of two largely untested assumptions: (i) that the movement of respiratory gases is unidirectional from anterior to posterior and (ii) that the ...