hyperthermia
- Neural dysfunction correlates with heat coma and CTmax in Drosophila but does not set the boundaries for heat stress survival
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.
- Avian thermoregulation in the heat: evaporative cooling capacity and thermal tolerance in two Australian parrots
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.
- Avian thermoregulation in the heat: evaporative cooling capacity of arid-zone Caprimulgiformes from two continents
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.
- Avian thermoregulation in the heat: evaporative cooling in five Australian passerines reveals within-order biogeographic variation in heat tolerance
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.
- Avian thermoregulation in the heat: evaporative cooling capacity in an archetypal desert specialist, Burchell's sandgrouse (Pterocles burchelli)
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.
- Avian thermoregulation in the heat: efficient evaporative cooling allows for extreme heat tolerance in four southern hemisphere columbids
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.
- Seasonal and geographical variation in heat tolerance and evaporative cooling capacity in a passerine bird
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.
- Avian thermoregulation in the heat: scaling of heat tolerance and evaporative cooling capacity in three southern African arid-zone passerines
Highlighted Article: Heat tolerance varies with body size in African weavers in the Kalahari Desert.