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Keywords: Stress
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Journal Articles
J Exp Biol (2021) 224 (9): jeb242293.
Published: 04 May 2021
.... However, in freshly collected outbred snails, the same heat stressor blocks LTM formation in ‘smart’ cognitive phenotype but not in average cognitive phenotype strains. Here, we hypothesize that (1) preventing the stress associated with the heat stressor before training allows LTM to form in the smart...
Journal Articles
J Exp Biol (2020) 223 (24): jeb234914.
Published: 24 December 2020
...Ulalume Hernández-Arciga; L. Gerardo Herrera M.; Mina Königsberg; Ricardo A. Valdez; José Juan Flores-Martínez; Marta C. Romano ABSTRACT One of the most common tools in conservation physiology is the assessment of environmental stress via glucocorticoid measurement. However, little is known of its...
Journal Articles
J Exp Biol (2020) 223 (22): jeb224964.
Published: 30 November 2020
...William A. Haney; Bushra Moussaoui; James A. Strother ABSTRACT Environmental stressors induce rapid physiological and behavioral shifts in vertebrate animals. However, the neurobiological mechanisms responsible for stress-induced changes in behavior are complex and not well understood. Similar...
Journal Articles
J Exp Biol (2020) 223 (21): jeb229047.
Published: 02 November 2020
... of thermoregulation can also be immense, yet our understanding of whether a stress response is sufficient to induce changes in thermoregulatory investment is limited. Using the black-capped chickadee as a model species, we tested a hypothesis that stress-induced changes in surface temperature ( T s ), a well...
Journal Articles
J Exp Biol (2020) 223 (16): jeb223743.
Published: 17 August 2020
... velocity and pennation angle change were greater during aquatic takeoffs than during terrestrial takeoffs because of the differences in knee motion. Nevertheless, we observed no significant differences in LG stress or work, but did see an increase in muscle power output during aquatic takeoffs. Because...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb224527.
Published: 22 July 2020
... of acute stress preceding a painful event can have an analgesic effect whereas the presence of chronic stress can result in hyperalgesia. While considerable research has been conducted on the ability of stress to modulate mammalian responses to pain, relatively little is known about fish...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (8): jeb216135.
Published: 16 April 2020
.... In principle, we can reduce stress-induced declines in colony health by either removing the stressor or increasing the bees' tolerance to the stressor. This latter option requires a better understanding than we currently have of how honey bees respond to stress. Here, we investigated how octopamine, a stress...
Journal Articles
J Exp Biol (2020) 223 (4): jeb213611.
Published: 18 February 2020
...Jerker Vinterstare; Kaj Hulthén; P. Anders Nilsson; Helen Nilsson Sköld; Christer Brönmark ABSTRACT Most animals constitute potential prey and must respond appropriately to predator-mediated stress in order to survive. Numerous prey also adaptively tailor their response to the prevailing level...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (3): jeb203448.
Published: 12 February 2020
... of ectotherms, including crustaceans, terrestrial arthropods, amphibians, reptiles, and fish. In addition to its well-defined role in enhancing survival to extreme cold, RCH also protects against nonlethal cold injury by preserving essential functions following cold stress, such as locomotion, reproduction...
Journal Articles
J Exp Biol (2020) 223 (3): jeb216424.
Published: 03 February 2020
...) on captive house sparrows in order to investigate the consequences of short-term dehydration on baseline and stress-induced corticosterone levels. As expected, water-deprived birds displayed higher plasma osmolality and haematocrit. Additionally, water-deprived birds had lower defecation rates, suggesting...
Journal Articles
J Exp Biol (2020) 223 (2): jeb203885.
Published: 21 January 2020
...Lorin A. Neuman-Lee; Spencer B. Hudson; Alison C. Webb; Susannah S. French ABSTRACT The glucocorticoid hormone corticosterone (CORT) has classically been used in ecophysiological studies as a proxy for stress and energy mobilization, but rarely are CORT and the energy metabolites themselves...
Journal Articles
J Exp Biol (2020) 223 (1): jeb209346.
Published: 02 January 2020
... stress response via the use of pharmacological antagonists. Additionally, we mapped 11β-HSD gene expression. We found 11β-HSD1 primarily in liver, kidney and adrenal glands, although it was detectable across all tissue types. 11β-HSD2 was predominately expressed in the adrenal glands and kidney...
Journal Articles
J Exp Biol (2019) 222 (15): jeb206011.
Published: 07 August 2019
... were exposed to control (2°C), direct freezing (−9°C for 24 h) or RCH (−5°C for 2 h followed by −9°C for 24 h). All larvae survived both freezing treatments, but RCH larvae recovered more quickly from freezing stress and had a significantly higher metabolic rate during recovery. RCH larvae also...
Journal Articles
J Exp Biol (2019) 222 (14): jeb205112.
Published: 16 July 2019
... the smart memory phenotype and increased stress resilience were observed in the second generation of transformed B-strain animals at both juvenile and adult stages. This suggests that a change in rearing environment can contribute to the memory-forming ability of lab-bred L. stagnalis . * Author...
Journal Articles
J Exp Biol (2019) 222 (10): jeb200659.
Published: 17 May 2019
...Vallo Tilgar ABSTRACT Prolonged stress can have long-lasting effects on an individual's physiology and growth. However, the impact of chronically elevated glucocorticoids on the expression of early antipredator responses is still poorly documented. In this study, I simulated the effect of repeated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (2): jeb186999.
Published: 21 January 2019
...Julien Bacqué-Cazenave; Marion Berthomieu; Daniel Cattaert; Pascal Fossat; Jean Paul Delbecque ABSTRACT The molting process of arthropods, chiefly controlled by ecdysteroids, is generally considered very stressful. Our previous investigations have shown that crayfish, after having experienced...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (23): jeb186254.
Published: 05 December 2018
... lines to test for non-genetic inheritance that could be selected revealed a weak response to selection in the inbred and outbred lines, with variability across lines. Environmental effects Selection Stress Phenotypic variation Inheritance Phenotypic variance observed in quantitative...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (23): jeb179820.
Published: 04 December 2018
.... , Dennison , S. , Falke , K. J. , et al. ( 2012 ). Deadly diving? Physiological and behavioural management of decompression stress in diving mammals . Proc. Roy. Soc. B   279 , 1041 - 1050 . 10.1098/rspb.2011.2088 Hopkins , S. R. , Wang , T. , Hicks , J. W. ( 1996...
Journal Articles
J Exp Biol (2018) 221 (22): jeb182600.
Published: 14 November 2018
...Amanda W. Carter; Rachel M. Bowden; Ryan T. Paitz ABSTRACT In recent years, the potential for maternal stress effects to adaptively alter offspring phenotype has received considerable attention. This research has identified offspring traits that are labile in response to maternal stress; however...
Journal Articles
J Exp Biol (2018) 221 (19): jeb182758.
Published: 10 October 2018
... phenotypes that persisted even across years: heart rate consistently differed among individuals during periods of stress and non-stress and these differences were driven by parasympathetic activity, thus identifying the parasympathetic rest-and-digest system as a central mechanism that can drive broad...