The intake responses of three species of leaf-nosed Neotropical bats

Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
Jorge Ayala-BerdonCarlos Martínez Del Rio

Abstract

Flower-visiting bats encounter nectars that vary in both sugar composition and concentration. Because in the new world, the nectars of bat-pollinated flowers tend to be dominated by hexoses, we predicted that at equicaloric concentrations, bats would ingest higher volumes of hexoses than sucrose-containing nectars. We investigated the intake response of three species of Neotropical bats, Leptonycteris curasoae, Glossophaga soricina and Artibeus jamaicensis, to sugar solutions of varying concentrations (292, 438, 584, 730, 876, and 1,022 mmol L(-1)) consisting of either sucrose or 1:1 mixtures of glucose and fructose solutions. Bats did not show differences in their intake response to sucrose and 1:1 glucose-fructose solutions, indicating that digestion and absorption in bat intestines are designed under the principle of symmorphosis, in which no step is more limiting than the other. Our results also suggest that, on the basis of energy intake, bats should not prefer hexoses over sucrose. We used a mathematical model that uses the rate of sucrose hydrolysis measured in vitro and the small intestinal volume of bats to predict the rate of nectar intake as a function of sugar concentration. The model was a good predictor of the int...Continue Reading

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Citations

Jan 20, 2009·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Jorge Ayala-BerdonKathryn E Stoner
Feb 2, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Jorge Ayala-BerdonJorge E Schondube
Oct 23, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Jorge Ayala-BerdonJorge E Schondube
May 12, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·J C Coleman, C T Downs
Dec 20, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Colleen T DownsPreshnee Singh
Sep 8, 2011·Physiological and Biochemical Zoology : PBZ·Jorge Ayala-Berdon, Jorge E Schondube
Sep 23, 2008·Reproduction in Domestic Animals = Zuchthygiene·T Muiño-BlancoJ A Cebrián-Pérez
Apr 5, 2013·The Journal of Animal Ecology·Nelly Rodríguez-PeñaJorge E Schondube
Apr 29, 2015·The Journal of Animal Ecology·Romeo A Saldaña-VázquezJorge E Schondube
Jun 15, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Jorge Ayala-BerdonJorge E Schondube
Feb 8, 2018·Physiology·Kenneth C WelchMorag F Dick
Mar 3, 2017·The Journal of Experimental Biology·Jorge Ayala-BerdonJorge E Schondube
Jul 1, 2020·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Stephanie Ortega-GarcíaJorge E Schondube
Feb 12, 2021·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Iván Cabrera-CamposJorge Ayala-Berdon
Jan 29, 2011·The Journal of Experimental Biology·Amy-Leigh Wilson, Colleen T Downs
Oct 28, 2011·The Journal of Experimental Biology·L Gerardo HerreraCarlos A Mancina

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