Low metabolism in a tropical bat from lowland Panama measured using heart rate telemetry : an unexpected life in the slow lane

Dechmann, Dina K. N.; Ehret, Severin; Gaub, Aline; Kranstauber, Bart; Wikelski, Martin

Low metabolism in a tropical bat from lowland Panama measured using heart rate telemetry : an unexpected life in the slow lane

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2011

Autor:innen

Ehret, Severin

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Experimental Biology. 2011, 214(21), pp. 3605-3612. ISSN 0022-0949. eISSN 1477-9145. Available under: doi: 10.1242/jeb.056010

Zusammenfassung

Animals must optimize their daily energy budgets, particularly if energy expenditures are as high as they are in flying animals. However, energy budgets of free-ranging tropical animals are poorly known. Newly miniaturized heart rate transmitters allowed to address this in the small, energetically limited, Neotropical bat Molossus molossus. High-resolution 48-hour energy budgets showed that this species significantly lowers its metabolism on a daily basis, even though ambient temperatures remain high. Mean roosting heart rate was 144 beats/min^-1, much lower than expected for a 10g bat. Low roosting heart rates combined with short nightly foraging times (37 min night^–1) resulted in an estimated energy consumption of 4.08 kJ/day^-1, less than 1/4 of the predicted field metabolic rate. Our results indicate that future research may reveal this as a more common pattern than currently assumed in tropical animals, which may have implications in the context of the effect of even small temperature changes on tropical species.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

esting metabolic rate, energy expenditure, Molossus, foraging strategy, social foraging, torpor

Zitieren

ISO 690

DECHMANN, Dina K. N., Severin EHRET, Aline GAUB, Bart KRANSTAUBER, Martin WIKELSKI, 2011. Low metabolism in a tropical bat from lowland Panama measured using heart rate telemetry : an unexpected life in the slow lane. In: Journal of Experimental Biology. 2011, 214(21), pp. 3605-3612. ISSN 0022-0949. eISSN 1477-9145. Available under: doi: 10.1242/jeb.056010

BibTex

@article{Dechmann2011-11-01metab-17700,
  year={2011},
  doi={10.1242/jeb.056010},
  title={Low metabolism in a tropical bat from lowland Panama measured using heart rate telemetry : an unexpected life in the slow lane},
  number={21},
  volume={214},
  issn={0022-0949},
  journal={Journal of Experimental Biology},
  pages={3605--3612},
  author={Dechmann, Dina K. N. and Ehret, Severin and Gaub, Aline and Kranstauber, Bart and Wikelski, Martin}
}

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Universitätsbibliographie

Ja