Webcable to nectar feeders that maximize energy gain per unit foraging cost, Baker's predictions regarding optimal sugar concentrations stimulated the simultaneous and indepen-dent … WebOptimal concentrations in nectar feeding
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WebDec 7, 2015 · Nectar-intake movements consist of rapid protraction and retraction of glossa from a tube formed by the maxillae and labial palps. We establish a physical model to reveal the driving mechanism of hair erection. Results indicate that the glossa of honeybees is similar to a compression spring. Webof nectar trapping, as opposed to capillarity, while feeding (cf. 2, 5). Hence, the outputs of their model and conclusions with regard to optimal concentrations in nectar feeding may be broadly unrealistic. Alejandro Rico-Guevara1 and Margaret A. Rubega Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269 1.
WebDec 1, 2024 · Lehnert M S, Mulvane C P, Brothers A. Mouthpart separation does not impede butterfly feeding. Arthropod Structure & Development, 2014, 43, 97–102. Article Google Scholar Kim W, Gilet T, Bush J W M. Optimal concentrations in nectar feeding. Proceedings of the National Academy of Sciences, 2011, 108, 16618–16621. WebJan 22, 2024 · For bumblebees and honeybees, which feed on nectar by lapping, dipping their feathery glossa (tongue) into the nectar [ 9, 15, 16 ], models of drinking rates predict …
WebAug 5, 2003 · 1 . Specialised nectar-feeding birds tend to prefer sucrose over glucose-fructose mixtures or to be indifferent when tested at concentrations close to 584 mmol L −1 sucrose equivalents. The role of the potential interaction between sugar composition and concentration on the sugar preferences of these birds, however, has not been explored. WebJun 6, 2013 · Optimization of sugar flow and transport efficiency predicts optimal concentrations of 23.5 per cent (if the pressure differential driving the flow is independent of concentration) and 34.5 per cent (if the pressure is proportional to concentration).
WebNectar-feeding birds (e.g., hummingbirds* and sunbirds) employ capillary suction, in which capillary pressure drives flow along the ... Inset: Optimal concentrations for suction …
WebSummary. A model is developed to elucidate the determinants of sugar concentrations in flower nectars. This model analyses the efficiency of sugar intake, or energy flux, which … solvay specialty polymers japan k.khttp://oastats.mit.edu/handle/1721.1/72959 solvay torlon ai-10WebKim W, Gilet T, Bush JW (2011) Optimal concentrations in nectar feeding. Proc Natl Acad Sci USA 108:16618–16621. 2. Rico-Guevara A, Rubega MA (2012) Hummingbird feeding mechanics: Comments on the capillarity model. Proc Natl Acad Sci USA 109:E867. 3. Rico-Guevara A, Rubega MA (2011) The hummingbird tongue is a fluid trap, not solvay torlonWebMar 1, 2015 · From the formula of nectar intake mass listed above, we can speculate that if all of the hairs erect vertically, namely α ( x )=90°, the proboscis will ideally lift the largest amount of nectar, which can be calculated as . However, the average erection angle was 37.26°, which was not in accordance with the optimal erection angles. small bowel obstruction cystic fibrosisWebSep 24, 2024 · Optimal concentrations for nectar drinking are limited by the steep increase in the viscosity of sugar solutions with concentration. However, nectar viscosity is inversely related to temperature, which suggests there are advantages to foraging from flowers that are warmer than the surrounding air. solvay taiwan co. ltdWebAug 22, 2015 · In order to evaluate our model, we compared the model output against our empirical results from actual feeding birds, using the following model parameters: pa = 3. 3 kPa, E = 4 kPa, and four tube lengths from 10 to 13.4 … small bowel obstruction diameterWebOptimal concentrations in nectar feeding Kim, Wonjung; Gilet, Tristan ; Bush, John W.M. 2011 • In Proceedings of the National Academy of Sciences of the United States of … solvay tower