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Keywords: dehydration
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Journal Articles
J Exp Biol (2021) 224 (6): jeb242199.
Published: 22 March 2021
... food consumption and not by hydration state. Additionally, thermoregulation mediated by food consumption does not conflict with the lizards’ locomotor activity. Energy balance Dehydration Heat Water balance Tropiduridae Water and food availability vary widely in space and time...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (5): jeb241414.
Published: 05 March 2021
... freshwater amphibious species. All three species have relatively small and similar thresholds of dehydration (TH, approximately −4% loss of body mass) that elicit thirst and drinking of fresh water. These species have higher thirst sensitivity than several species of hydrophiine and laticaudine sea snakes...
Journal Articles
J Exp Biol (2021) 224 (Suppl_1): jeb238113.
Published: 24 February 2021
... varying body size. Dehydration Homeostasis Osmoregulation Starvation Thermoregulation Drylands, which comprise about 45% of the Earth's land surface ( Fig. 1 ) and support substantial biodiversity ( Mirzabaev et al., 2019 ), have warmed and dried more strongly than other ecoregions over...
Journal Articles
J Exp Biol (2020) 223 (18): jeb231985.
Published: 25 September 2020
...Daniel E. Zajic; Jonathon P. Nicholson; Jason E. Podrabsky ABSTRACT Annual killifish survive in temporary ponds by producing drought-tolerant embryos that can enter metabolic dormancy (diapause). Survival of dehydration stress is achieved through severe reduction of evaporative water loss. We...
Journal Articles
J Exp Biol (2019) 222 (9): jeb204065.
Published: 07 May 2019
... tolerate greater dehydration before drinking than will mainland snakes. (3) Insular snakes will avoid drinking seawater more strongly than will those from the mainland. Between 2001 and 2018, we quantitatively estimated the hydration status of 337 individual cottonmouth snakes from insular populations and...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (9): jeb167445.
Published: 11 May 2018
... during sloughing in L . caerulea . During active periods across all species, water loss rates were on average 232% higher in Bd infected frogs than in uninfected frogs. This indicates that dehydration stress may be a significant factor contributing to the morbidity of severely Bd infected anurans, a...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (19): 3565–3570.
Published: 01 October 2017
...Harvey B. Lillywhite ABSTRACT An important question related to the survival of dehydrating animals is whether feeding provides a net gain of water – contributing postprandial free water and metabolic water – or, alternatively, whether digestion and assimilation of ingested food incur a net loss of...
Journal Articles
J Exp Biol (2017) 220 (12): 2166–2174.
Published: 15 June 2017
...Karla T. Moeller; Guillaume Demare; Scott Davies; Dale F. DeNardo ABSTRACT The physiological challenges associated with dehydration can induce an increase in plasma glucocorticoid concentrations, a response thought to provide the mechanism for dehydration suppressing immune function. However, a...
Journal Articles
J Exp Biol (2017) 220 (10): 1792–1796.
Published: 15 May 2017
... ( Vipera aspis ), a species naturally exposed to periods of water and food deprivation. We predicted a cumulative effect of pregnancy and dehydration on oxidative stress levels. Our results support the occurrence of an oxidative cost of reproduction as we found higher oxidative damage levels in pregnant...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (5): 658–667.
Published: 01 March 2016
... maternal osmolality and baseline CORT levels. Together, our results suggest that dehydration increases maternal CORT levels, which may subsequently influence offspring development. Further long-term field studies are therefore required to assess whether there is an adaptive significance of this response...
Journal Articles
J Exp Biol (2015) 218 (13): 1986–1989.
Published: 01 July 2015
... physiological interactions between pathogen and host. Pseudogymnoascus destructans severely damages wings and tail membranes, by causing dryness that leads to whole sections crumbling off. Four possible mechanisms have been proposed by which infection could lead to dehydration; in this study, we tested one: P...
Journal Articles
J Exp Biol (2014) 217 (24): 4406–4413.
Published: 15 December 2014
... K.A.D. Competing interests The authors declare no competing financial interests. 30 6 2014 2 11 2014 © 2014. Published by The Company of Biologists Ltd 2014 Marine reptile [ 2 H]deuterium Dehydration Osmoregulation Homeostasis Overwinter Water flux Salt...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (1): 84–93.
Published: 01 January 2014
... supercooling below −30°C. Also, some of these microarthropods are capable of cryoprotective dehydration to extend their supercooling capacity and reduce the risk of freezing. In contrast, the two best-studied Antarctic insects, the midges Belgica antarctica and Eretmoptera murphyi , are freeze-tolerant year...
Journal Articles
J Exp Biol (2013) 216 (9): 1650–1657.
Published: 01 May 2013
... summary, despite being ureogenic and ureotelic in water, P. sinensis adopted a reduction in ammonia production, instead of increased urea synthesis, as the major strategy to ameliorate ammonia toxicity and problems associated with dehydration during terrestrial exposure. In the past, the rates of...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (8): 1439–1447.
Published: 15 April 2013
... levels of dehydration. Gila monsters could not maintain water balance over long time scales through meal consumption alone. Animals fed a single meal took no longer to dehydrate than controls when both groups were deprived of free water. Additionally, meal consumption imparts an acute short-term hydric...
Journal Articles
J Exp Biol (2012) 215 (5): 766–773.
Published: 01 March 2012
... correspondence ( bfanson@gmail.com ) 22 11 2011 © 2012. 2012 dietary restriction dehydration Euclidean metric fruit fly geometric framework macronutrient Nutritional regulation entails a complex interplay between physiological and behavioural processes. Physiological needs are...
Journal Articles
J Exp Biol (2009) 212 (17): 2864–2871.
Published: 01 September 2009
... exposure, and examined the effect of seawater acclimation on their subsequent tolerance of freezing, dehydration and heat shock. Midge larvae tolerated extended exposure to hyperosmotic seawater; nearly 50% of larvae survived a 10-day exposure to 1000 mOsm kg –1 seawater and ∼25% of larvae survived 6 days...
Journal Articles
J Exp Biol (2008) 211 (12): 1903–1910.
Published: 15 June 2008
... slowly desiccated D . octaedra cocoons to simulate ecologically realistic drought conditions and the results clearly demonstrate that gradually dehydrated cocoons show an increased tolerance of extreme drought compared with acutely dehydrated cocoons. NMR spectroscopic analysis of compatible osmolytes...
Journal Articles
J Exp Biol (2007) 210 (8): 1472–1480.
Published: 15 April 2007
... season characteristic of the deserts that Gila monsters inhabit. * Author for correspondence (e-mail: j.davis@asu.edu ) 14 2 2007 © The Company of Biologists Limited 2007 2007 water economy hydrostasis dehydration osmoregulation reptile Water is a scarce, but critical...
Journal Articles
J Exp Biol (2006) 209 (17): 3309–3321.
Published: 01 September 2006
... arid cocoon dehydration desert frog water balance water potential A number of studies have addressed the ability of arid-adapted frogs to maintain water balance in the laboratory, but very little is known of the water balance status of frogs aestivating in the field. This reflects the...