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seasonality

  • RESEARCH ARTICLE
    Gonads or body? Differences in gonadal and somatic photoperiodic growth response in two vole species
    Laura van Rosmalen, Jayme van Dalum, David G. Hazlerigg, Roelof A. Hut
    Journal of Experimental Biology 2020 223: jeb230987 doi: 10.1242/jeb.230987 Published 21 October 2020

    Summary: Development of the neuroendocrine system driving photoperiodic responses in gonadal and somatic growth differs between the common and the tundra vole, indicating that they use a different breeding strategy.

  • RESEARCH ARTICLE
    Ecologically relevant thermal fluctuations enhance offspring fitness: biological and methodological implications for studies of thermal developmental plasticity
    Joshua M. Hall, Daniel A. Warner
    Journal of Experimental Biology 2020 223: jeb231902 doi: 10.1242/jeb.231902 Published 8 October 2020

    Editor's choice: Natural incubation temperatures enhance offspring survival in a lizard.

  • RESEARCH ARTICLE
    Body temperature maintenance acclimates in a winter-tenacious songbird
    Maria Stager, Nathan R. Senner, Bret W. Tobalske, Zachary A. Cheviron
    Journal of Experimental Biology 2020 223: jeb221853 doi: 10.1242/jeb.221853 Published 23 June 2020

    Summary: Dark-eyed juncos maintain normothermia in the cold by modifying separate physiological traits at different time points in response to external temperature cues.

  • RESEARCH ARTICLE
    Shift in worker physiology and gene expression pattern from reproductive to diapause-like with colony age in the bumble bee Bombus impatiens
    Erin D. Treanore, Jacklyn M. Kiner, Mackenzie E. Kerner, Etya Amsalem
    Journal of Experimental Biology 2020 223: jeb218768 doi: 10.1242/jeb.218768 Published 4 May 2020

    Summary: Bumblebee workers exhibit a physiological signature (innate to workers, queen or the colony) corresponding to colony age with a shift towards a diapause-like profile in late-eclosing workers.

  • RESEARCH ARTICLE
    Consequences of being phenotypically mismatched with the environment: no evidence of oxidative stress in cold- and warm-acclimated birds facing a cold spell
    Ana Gabriela Jimenez, Emily Cornelius Ruhs, Kailey J. Tobin, Katie N. Anderson, Audrey Le Pogam, Lyette Regimbald, François Vézina
    Journal of Experimental Biology 2020 223: jeb218826 doi: 10.1242/jeb.218826 Published 14 April 2020

    Summary: Oxidative stress appears to be closely matched to whole-animal physiology in cold-acclimated birds compared with transition birds, implying that changes to the oxidative stress system happen slowly.

  • RESEARCH ARTICLE
    Acclimatization in the physiological performance of an introduced ectotherm
    Lauren K. Neel, John D. Curlis, Chase T. Kinsey, Christian L. Cox, Lance D. McBrayer
    Journal of Experimental Biology 2020 223: jeb201517 doi: 10.1242/jeb.201517 Published 25 March 2020

    Summary: Introduced species use acclimatization to maintain high performance year round; therefore, phenotypic flexibility likely shapes the fundamental niche of both introduced and native species.

  • RESEARCH ARTICLE
    Photoperiod modulates the gut microbiome and aggressive behavior in Siberian hamsters
    Clarissa C. Ren, Kristyn E. Sylvia, Kathleen M. Munley, Jessica E. Deyoe, Sarah G. Henderson, Michael P. Vu, Gregory E. Demas
    Journal of Experimental Biology 2020 223: jeb212548 doi: 10.1242/jeb.212548 Published 31 January 2020

    Summary: Sex-specific changes in the gut microbiome are associated with aggression during the non-breeding season in Siberian hamsters, suggesting a potential role for the microbiome in regulating seasonal aggression.

  • RESEARCH ARTICLE
    Seasonal muscle ultrastructure plasticity and resistance of muscle structural changes during temperature increases in resident black-capped chickadees and rock pigeons
    Ana Gabriela Jimenez, Erin S. O'Connor, Karl J. Brown, Christopher W. Briggs
    Journal of Experimental Biology 2019 222: jeb201855 doi: 10.1242/jeb.201855 Published 24 June 2019

    Summary: Two temperate resident birds of differing body mass show phenotypic flexibility of their pectoralis muscle through differing mechanisms of muscle growth.

  • RESEARCH ARTICLES
    Thermoregulatory strategy may shape immune investment in Drosophila melanogaster
    Ian C. Kutch, Hasan Sevgili, Tyler Wittman, Kenneth M. Fedorka
    Journal of Experimental Biology 2014 217: 3664-3669; doi: 10.1242/jeb.106294
  • RESEARCH ARTICLES
    Seasonality influences cuticle melanization and immune defense in a cricket: support for a temperature-dependent immune investment hypothesis in insects
    Kenneth M. Fedorka, Emily K. Copeland, Wade E. Winterhalter
    Journal of Experimental Biology 2013 216: 4005-4010; doi: 10.1242/jeb.091538

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