... movements and intraoral space reveals how they transfer nectar from the tongue to the throat – the eco-evolutionary implications of these findings are discussed. Biomechanics Drinking Feeding mechanisms Flow visualization Fluid transport Nectarivory University of Washington http...

... =0.028) relative to that of snakes sampled in the field at Paynes Prairie ( n =14, 309.1±18.2 mosmol kg −1 ). Of the 26 individuals captured in the field, 12 snakes (Paynes Prairie n =5, Snake Key n =7) were brought back to the laboratory and a drinking trial was conducted. Six of the seven...

...David Cuban; Amanda E. Hewes; Alyssa J. Sargent; Derrick J. E. Groom; Alejandro Rico-Guevara ABSTRACT Nectar-feeding birds employ unique mechanisms to collect minute liquid rewards hidden within floral structures. In recent years, techniques developed to study drinking mechanisms in hummingbirds...

..., and declined by 50% during hypoxia with post-exposure overshoot to 188%. A similar pattern with smaller changes occurred in freshwater. Drinking rate (also measured with [ 14 C] PEG-4000) was 8-fold higher in seawater fish, but declined by ∼90% during hypoxia in both groups, with post-exposure overshoots...

... hypotheses related to water relations of insular populations of cottonmouth snakes compared with those on the mainland. (1) Voluntary drinking of fresh water in free-ranging insular snakes should reflect a relationship to recency of rainfall more strongly than in mainland snakes. (2) Insular snakes...

...Mayumi Aoki; Toyoji Kaneko; Fumi Katoh; Sanae Hasegawa; Naoaki Tsutsui; Katsumi Aida SUMMARY To elucidate the mechanisms associated with water absorption in the intestine, we compared drinking and intestinal water absorption in freshwater-and seawater-adapted Japanese eels, and investigated...

... to those in sea water. This could afford them the capacity to drink sea water and not lose fresh water. However, with few exceptions, drinking is not a common behavior in pinnipeds and cetaceans. Water balance is maintained in these animals via metabolic and dietary water, while incidental ingestion...

...Rudy M. Ortiz; Graham A. J. Worthy; Floyd M. Byers ABSTRACT The ability of West Indian manatees ( Trichechus manatus ) to move between fresh and salt water raises the question of whether manatees drink salt water. Water turnover rates were estimated in captive West Indian manatees using...

... the increase by approximately 44%. Stimulation of the endogenous renin–angiotensin system using a vasodilator, sodium nitroprusside, significantly increased drinking rate in rainbow trout fry, a response inhibited by saralasin, indicating a role for AngII-induced hypotension in drinking. For the first time...

...P. Tytler; J. H. S. Blaxter ABSTRACT Drinking responses to salinity change in the larvae of herring (Clupea harengus L.), plaice (Pleuronectesplatessa L.) and cod (Gadus morhua L.) were measured from the time course of uptake of dextran labelled with tritium, following immersion in solutions of 32...

.... The adaptational advantages of the observed changes are discussed. 13 09 1983 © 1984 by Company of Biologists 1984 Urea influx water uptake I sc amiloride drinking Urea appears to play a critical role in adaptation of amphibians to a terrestrial environment ( Bentley, 1966...