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Titolo:
Respiration of Abax ater (Coleoptera, Carabidae): a complex parameter of the energy budget
Autore:
Chaabane, K; Josens, G; Loreau, M;
Indirizzi:
Free Univ Brussels, Dept Anim Biol, B-1050 Brussels, Belgium Free Univ Brussels Brussels Belgium B-1050 iol, B-1050 Brussels, Belgium Ecole Normale Super, Ecol Lab, UMR 7625, F-75230 Paris 05, France Ecole Normale Super Paris France 05 , UMR 7625, F-75230 Paris 05, France
Titolo Testata:
PEDOBIOLOGIA
fascicolo: 4, volume: 43, anno: 1999,
pagine: 305 - 318
SICI:
0031-4056(199910)43:4<305:ROAA(C>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
BEETLE;
Keywords:
carabid beetles; Abax ater; respiration; standard metabolic rate; basal metabolic rate; activity metabolic rate; digestion; mobility; stage; body mass; temperature; acclimation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Chaabane, K Univ Mohammed 1er, Dept Biol, Route Sidi Maafa,BP 524, Oujda 60000, Morocco Univ Mohammed 1er Route Sidi Maafa,BP 524 Oujda Morocco 60000
Citazione:
K. Chaabane et al., "Respiration of Abax ater (Coleoptera, Carabidae): a complex parameter of the energy budget", PEDOBIOLOG, 43(4), 1999, pp. 305-318

Abstract

Respiration is quantitatively the most important element in the energy budget of the ground beetle Abax ater. It was measured in a Gilson respirometer for all developmental stages (except for the eggs), taking as many parameters as possible into account. The standard metabolic rate (SMR) increased exponentially with temperaturein the range 5-15 degrees C but no metabolic acclimation to temperature was observed. A single relationship was found between body mass and respiration for all the active stages. Adult males regularly had a SMR slightly higher than didfemales, but the difference was seldom significant and may be explained bydifferences in body mass. At constant temperature SMR exhibited a daily cycle with two peaks occurring in the first half of the night and in the morning. It also exhibited an annual cycle with a maximum in the summer. SMR was up to twice higher than the basal metabolic rate (BMR), and the activity metabolic rate (AMR) of running individuals was two to three times higher than SMR. Respiration increased to twice SMR the day after a full meal owing to digestion, and then decreased for three days. The respiratory quotient (RQ) of 0.72 suggested that mainly lipid molecules were oxidised in A. ater respiration. Measurements of respiration by gravimetry gave results that were close to BMR. Besides the classical relationships of respiration with temperature and body mass, this work showed the significant influences of digestion and mobility on respiration : taking them into account realistically required multiplying SMR by a factor 2.3 during the active part of the annual cycle of A. ater. This correction allowed balanced energy budgets to be obtained.

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Documento generato il 05/07/20 alle ore 22:39:19