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hyperthermia

  • RESEARCH ARTICLE
    Neural dysfunction correlates with heat coma and CTmax in Drosophila but does not set the boundaries for heat stress survival
    Lisa B. Jørgensen, R. Meldrum Robertson, Johannes Overgaard
    Journal of Experimental Biology 2020 223: jeb218750 doi: 10.1242/jeb.218750 Published 10 July 2020

    Summary: Hyperthermic failure of the Drosophila central nervous system causes heat coma, a trait varying in temperature between drosophilids, but neural failure is not the primary cause of heat mortality.

  • RESEARCH ARTICLE
    Avian thermoregulation in the heat: evaporative cooling capacity and thermal tolerance in two Australian parrots
    Todd J. McWhorter, Alexander R. Gerson, William A. Talbot, Eric Krabbe Smith, Andrew E. McKechnie, Blair O. Wolf
    Journal of Experimental Biology 2018 221: jeb168930 doi: 10.1242/jeb.168930 Published 23 March 2018

    Highlighted Article: Australian parrots from arid environments have a high capacity to utilize evaporative heat dissipation to defend body temperature in hot conditions. Thermal tolerance is similar to that seen in songbirds.

  • RESEARCH ARTICLE
    Avian thermoregulation in the heat: evaporative cooling capacity of arid-zone Caprimulgiformes from two continents
    William A. Talbot, Todd J. McWhorter, Alexander R. Gerson, Andrew E. McKechnie, Blair O. Wolf
    Journal of Experimental Biology 2017 220: 3488-3498; doi: 10.1242/jeb.161653

    Summary: Caprimulgiformes demonstrate high heat tolerance that is mediated by low rates of resting metabolism and a very efficient evaporative process that uses a gular flutter mechanism.

  • RESEARCH ARTICLE
    Avian thermoregulation in the heat: evaporative cooling in five Australian passerines reveals within-order biogeographic variation in heat tolerance
    Andrew E. McKechnie, Alexander R. Gerson, Todd J. McWhorter, Eric Krabbe Smith, William A. Talbot, Blair O. Wolf
    Journal of Experimental Biology 2017 220: 2436-2444; doi: 10.1242/jeb.155507

    Summary: Five Australian passerines show evaporative cooling mechanisms qualitatively similar to those of other members of the Passeriformes, but have reduced heat tolerance compared with southern African species.

  • RESEARCH ARTICLE
    Avian thermoregulation in the heat: evaporative cooling capacity in an archetypal desert specialist, Burchell's sandgrouse (Pterocles burchelli)
    Andrew E. McKechnie, Ben Smit, Maxine C. Whitfield, Matthew J. Noakes, William A. Talbot, Mateo Garcia, Alexander R. Gerson, Blair O. Wolf
    Journal of Experimental Biology 2016 219: 2137-2144; doi: 10.1242/jeb.139733

    Summary: Evaporative cooling in Burchell's sandgrouse, an archetypal arid-adapted bird, is surprisingly inefficient, and suggestive of heavy reliance on respiratory rather than cutaneous heat dissipation.

  • RESEARCH ARTICLE
    Avian thermoregulation in the heat: efficient evaporative cooling allows for extreme heat tolerance in four southern hemisphere columbids
    Andrew E. McKechnie, Maxine C. Whitfield, Ben Smit, Alexander R. Gerson, Eric Krabbe Smith, William A. Talbot, Todd J. McWhorter, Blair O. Wolf
    Journal of Experimental Biology 2016 219: 2145-2155; doi: 10.1242/jeb.138776

    Summary: Arid-zone pigeons and doves dissipate heat primarily through cutaneous evaporative pathways, which has minimal metabolic costs, is highly efficient and allows for the defense of a relatively low body temperature under extreme heat conditions.

  • RESEARCH ARTICLE
    Seasonal and geographical variation in heat tolerance and evaporative cooling capacity in a passerine bird
    Matthew J. Noakes, Blair O. Wolf, Andrew E. McKechnie
    Journal of Experimental Biology 2016 219: 859-869; doi: 10.1242/jeb.132001

    Summary: Heat tolerance and evaporative cooling capacity in a passerine bird varies among populations, with individuals at a hot arid site showing significant seasonal acclimatisation.

  • RESEARCH ARTICLE
    Avian thermoregulation in the heat: scaling of heat tolerance and evaporative cooling capacity in three southern African arid-zone passerines
    Maxine C. Whitfield, Ben Smit, Andrew E. McKechnie, Blair O. Wolf
    Journal of Experimental Biology 2015 218: 1705-1714; doi: 10.1242/jeb.121749

    Highlighted Article: Heat tolerance varies with body size in African weavers in the Kalahari Desert.

  • RESEARCH ARTICLES
    Protective effect of hypothermia on brain potassium homeostasis during repetitive anoxia in Drosophila melanogaster
    Esteban C. Rodríguez, R. Meldrum Robertson
    Journal of Experimental Biology 2012 215: 4157-4165; doi: 10.1242/jeb.074468

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