Variation of foraging rate and wing loading, but not resting metabolic rate scaling, of insect pollinators.

Die Naturwissenschaften
John S Terblanche, Bruce Anderson

Abstract

Morphological, physiological and behavioural variation with body size (i.e. scaling) may affect costs of living in a particular environment for insects and, ultimately, pollination or foraging success. However, few studies have directly assessed the scaling of these traits at the species level. Using two similar-sized pollinator species (the hawkmoth Macroglossum trochilus and the fly Moegistorhynchus longirostrus), we compare intraspecific scaling relationships of resting metabolic rate (RMR), foraging rate (FR) and wing loading (WL) to address this paucity of data. Scaling of RMR was similar for both taxa although the intercepts for the relationships differed. However, these two species showed variation in WL scaling relationships and fundamentally different FR scaling. For M. longirostrus, FR scaling was positive but non-significantly related to body mass while for M. trochilus FR scaling was negative. This suggests that variation in FR and WL, but not RMR scaling, among these flies and hawkmoths may impose significant energetic costs which could affect animal-plant interactions in the wild.

References

Jul 6, 2004·Journal of Insect Physiology·John S TerblancheSteven L Chown
Sep 13, 2005·The Journal of Experimental Biology·Charles-A DarveauRaul K Suarez
Oct 14, 2005·Biological Reviews of the Cambridge Philosophical Society·Douglas S Glazier
Dec 27, 2005·Annals of Botany·Peter Goldblatt, John C Manning
Aug 25, 2006·Proceedings. Biological Sciences·Andrew Clarke, Kevin J Gaston
Dec 7, 2006·Biology Letters·Jeremy E Niven, Jörn P W Scharlemann
Apr 12, 2007·The American Naturalist·Brendan J Borrell
Jan 17, 2009·Evolution; International Journal of Organic Evolution·Anton PauwRichard J Waterman
Nov 7, 2009·Evolution; International Journal of Organic Evolution·Bruce AndersonSteven D Johnson

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Citations

Oct 1, 2012·Biological Journal of the Linnean Society·Florian KarolyiHarald W Krenn
Sep 20, 2015·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Sean Tomlinson, Myles H M Menz
May 28, 2014·Biological Reviews of the Cambridge Philosophical Society·Douglas S Glazier
Feb 14, 2012·Journal of Insect Physiology·Helmut KäferAnton Stabentheiner
Mar 29, 2019·The Journal of Animal Ecology·Gordon P SmithDaniel R Papaj

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