+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Sugar gustatory thresholds and sugar selection in two species of Neotropical nectar-eating bats

, : Sugar gustatory thresholds and sugar selection in two species of Neotropical nectar-eating bats. Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology 164(2): 307-313

Nectar-feeding bats play an important role in natural communities acting as pollinators; however, the characteristics that affect their food selection are unclear. Here we explore the role that sugar gustatory thresholds and sugar concentration play on sugar selection of Glossophaga soricina and Leptonycteris yerbabuenae. We offered bats paired feeders containing sugar solutions of sucrose (S), glucose (G) or fructose (F) vs. pure water, and sucrose vs. 1:1 equicaloric solutions of glucose-fructose at 5, 15 and 35% (wt./vol.). To see the effect of sweetness on sugar selection, we habituated bats with a diet containing either sucrose or hexoses and subsequently evaluated sugar preferences. Sugar thresholds were S<G,F for G. soricina and G<S<F for L. yerbabuenae. These thresholds did not match with sugar preferences when bats fed on dilute nectars. Leptonycteris yerbabuenae changed its sugar preferences with concentration while G. soricina did not. Finally, bats consistently preferred the sugar they were habituated to. Our results suggest that bats become accustomed to the sugar found in the most abundant plants they use, and thus prefer the most common sugars included in their diet. This could confer an advantage by allowing them shifting sugar preferences on the most common food present in their environment.


PMID: 23085289

DOI: 10.1016/j.cbpa.2012.10.019

Other references

Bhatavdekar, J.M.; Patel, D.D.; Shah, N.G.; Vora, H.H.; Suthar, T.P.; Ghosh, N.; Chikhlikar, P.R.; Trivedi, T.I., 2000: Prolactin as a local growth promoter in patients with breast cancer: GCRI experience. The aim of this study was to evaluate the prognostic value of pre-operative prolactin (PRL) in conjunction with established prognosticators, and the risk of disease relapse in patients with early and advanced breast cancer. To confirm the hypothes...

Suh, M.R.e; Jung,; Kim, S.B.e; Park, J.S.k; Yang, W.S.ok, 2002: Effects of regular exercise on anxiety, depression, and quality of life in maintenance hemodialysis patients. Background: Psychological problems such as depression and anxiety are common in hemodialysis patients. In several studies, exercise programs were effective in relieving depression or anxiety in these patients, although not all agree. Purpose: In t...

Anonymous., 1977: Norfolk Island boobook owl, Ninox novaeseelandiae toyana. Australian endangered Spec. (Birds), 12: 1-2,Must.

Mazuka, R.; Cao, Y.; Dupoux, E.; Christophe, A., 2011: The development of a phonological illusion: a cross-linguistic study with Japanese and French infants. In adults, native language phonology has strong perceptual effects. Previous work has shown that Japanese speakers, unlike French speakers, break up illegal sequences of consonants with illusory vowels: they report hearing abna as abuna. To study...

Von Hohnel, F., 1926: Uber Micropera erumpens Ellis Everhart. The species is considered synonymous with M. abietina (Gelatinosporium abietinum Pk.) (p. 32).

Gardziel Zbigniew, 1979: Dune formation of northern foreland of the Lublin Upland. Annales Universitatis Mariae Curie Skllodowskao B: Geographia, Geologia, Mineralogia et Petrographia. 34; Pages 123-142. 1979.

Maxey-Conwill, T.; Englert, J.; Bertolet, B., 2007: CME: what's in it for patients? Alignment with outcomes. North Mississippi Medical Center's (NMMC) Continuing Medical Education (CME) Program in collaboration with the NMMC Outcomes Managers / quality staff have been able successfully to bridge the gap between identifying topic needs and intended r...

Kouskolekas, C.A.; Decker, G.C., 1966: The effect of temperature on the rate of development of the potato leafhopper, Empoasca fabae (Homoptera: Cicadellidae). The following is virtually the authors' abstract. Empoasca fabae (Harris) was reared over a three-year period both in temperature-controlled cabinets and under known field conditions in Illinois. In the laboratory, the relation between temper...

Buchanan, T.A.; Xiang, A.H.; Kjos, S.L.; Trigo, E.; Lee, W.P.; Peters, R.K., 1999: Antepartum predictors of the development of type 2 diabetes in Latino women 11-26 months after pregnancies complicated by gestational diabetes. In this study, we sought to identify antepartum characteristics that predict the de novo development of diabetes 11-26 months after the index pregnancy in a carefully characterized cohort of women with gestational diabetes mellitus (GDM). Oral and...

Labram, C., 1963: Photosensitizing drugs. Concours Medical 85: 4247-4248