Cost of digging is determined by intrinsic factors rather than by substrate quality in two subterranean rodent species.

作者: Jitka Zelová , Radim Šumbera , Jan Okrouhlík , Hynek Burda

DOI: 10.1016/J.PHYSBEH.2009.10.007

关键词:

摘要: Searching for food by extensive digging is one of the most important aspects life subterranean rodents. We studied effect extrinsic (substrate quality) and intrinsic factors (sex body mass) upon cost burrowing, expressed as metabolic rate (DMR) in two African mole-rat species (Bathyergidae, Rodentia) with distinct social structures. The sexually dimorphic giant (Fukomys mechowii) a highly species, whereas almost monomorphic silvery (Heliophobius argenteocinereus) solitary bathyergid. Burrowing F. mechowii was more costly (DMR greater) than H. argenteocinereus, but there no difference burrowing speed between both species. DMR within particular dependent mass, independent sex. Different substrate quality had either yet it affected speed. conclude that less effective can be compensated joint workforce other family members. Alternatively, being digger, afford way life.

参考文章(26)
Mathias Kawalika, Hynek Burda, Giant Mole-rats, Fukomys mechowii, 13 Years on the Stage Springer, Berlin, Heidelberg. pp. 205- 219 ,(2007) , 10.1007/978-3-540-69276-8_15
Sabine Begall, Hynek Burda, Cristian E. Schleich, Subterranean Rodents: News from Underground Springer Berlin Heidelberg. pp. 3- 9 ,(2007) , 10.1007/978-3-540-69276-8_1
Chris G. Faulkes, Nigel C. Bennett, African Mole-Rats: Ecology and Eusociality ,(2000)
Facundo Luna, C. Daniel Antinuchi, Cost of foraging in the subterranean rodent Ctenomys talarum: effect of soil hardness Canadian Journal of Zoology. ,vol. 84, pp. 661- 667 ,(2006) , 10.1139/Z06-040
W.J. van Aardt, G. Bronner, Rochelle Buffenstein, Hemoglobin-oxygen-affinity and acid-base properties of blood from the fossorial mole-rat, Cryptomys hottentotus pretoriae. Comparative Biochemistry and Physiology A-molecular & Integrative Physiology. ,vol. 147, pp. 50- 56 ,(2007) , 10.1016/J.CBPA.2006.11.016
Caroline Ross, Catherine Key, Sex differences in energy expenditure in non–human primates Proceedings of The Royal Society B: Biological Sciences. ,vol. 266, pp. 2479- 2485 ,(1999) , 10.1098/RSPB.1999.0949
Jitka Zelová, Radim Šumbera, František Sedláček, Hynek Burda, Energetics in a solitary subterranean rodent, the silvery mole-rat, Heliophobius argenteocinereus, and allometry of RMR in African mole-rats (Bathyergidae). Comparative Biochemistry and Physiology A-molecular & Integrative Physiology. ,vol. 147, pp. 412- 419 ,(2007) , 10.1016/J.CBPA.2007.01.002
Francisco Bozinovic, Mauricio J. Carter, Luis A. Ebensperger, A test of the thermal-stress and the cost-of-burrowing hypotheses among populations of the subterranean rodent Spalacopus cyanus. Comparative Biochemistry and Physiology A-molecular & Integrative Physiology. ,vol. 140, pp. 329- 336 ,(2005) , 10.1016/J.CBPB.2005.01.015