... that animals seek hypoxic microhabitats that accentuate metabolic depression during dormancy. We first measured the partial pressure of oxygen ( P O 2 ) within artificial cavities excavated in wet clay soil, which simulated C. alboguttata underground aestivation chambers, and recorded hypoxic conditions ( P O...

...K. Hidalgo; C. Montazeau; D. Siaussat; V. Braman; M. Trabalon; F. Simard; D. Renault; R. K. Dabiré; K. Mouline ABSTRACT Aestivation and dispersive migration are the two strategies evoked in the literature to explain the way in which malaria vectors Anopheles coluzzii and A. gambiae survive...

... of disuse and reduced mechanical loading, such as hibernating mammals and aestivating frogs, consistently exhibit limited or no change in musculoskeletal performance. What factors modulate skeletal muscle and bone mass, and what physiological and molecular mechanisms protect against losses of muscle...

... with aestivation. Mosquito Aestivation Anopheles gambiae Desiccation resistance Water balance Dry season The importance of Anopheles gambiae and Anopheles   coluzzii (previously the S and M forms of A. gambiae , respectively) in the transmission of malaria is widely recognized ( WHO, 2014...

... . Temperature-induced increases in oxygen consumption rate occur in some muscles of ectotherms undergoing prolonged muscular disuse during aestivation. In the green-striped burrowing frog, Cyclorana alboguttata , both large jumping and small non-jumping muscles undergo atrophy seemingly commensurate...

... the mechanisms of population persistence during the dry season are not yet known, targeting dry season mosquitoes could provide opportunities for vector control. In the Sahel, it appears likely that M-form A. gambiae survive by aestivation (entering a dormant state). To assess the role of eco-physiological...

...Karen M. Young; Rebecca L. Cramp; Craig R. White; Craig E. Franklin SUMMARY Reactive oxygen species (ROS), produced commensurate with aerobic metabolic rate, contribute to muscle disuse atrophy (MDA) in immobilised animals by damaging myoskeletal protein and lipids. Aestivating frogs appear...

... mechanism for mosquitoes to reduce their metabolic rate, and provide insight into the possible strategies employed by aestivating individuals during the dry season. We hypothesize that female mosquitoes switch to sugar feeding while in dormancy because of elevated metabolism associated with blood digestion...

...Zeev Arad; Tal Mizrahi; Shoshana Goldenberg; Joseph Heller SUMMARY Land snails are subject to daily and seasonal variations in temperature and in water availability, and have evolved annual cycles of activity and aestivation as part of their survival strategy. We tested in the field whether...

...Beth L. Mantle; Nicholas J. Hudson; Gregory S. Harper; Rebecca L. Cramp; Craig E. Franklin SUMMARY We investigated the effect of prolonged immobilisation of six and nine months duration on the morphology and antioxidant biochemistry of skeletal muscles in the amphibian aestivator Cyclorana...

...Rebecca L. Cramp; Sara M. Kayes; Edward A. Meyer; Craig E. Franklin SUMMARY Although green striped burrowing frogs ( Cyclorana alboguttata )experience large reductions in the mass and absorptive surface area of the small intestine (SI) during aestivation, little is known about how this may affect...

.... In this study we measured state 3 and state 4 mitochondrial respiration in the muscle of the burrowing frog, Cyclorana alboguttata and calculated the respiratory control ratio as a measure of coupling efficiency. After 7 months in aestivation, C. alboguttata significantly reduced oxygen consumption of isolated...

..., such as hibernators and aestivators, provide an interesting model for investigating atrophy associated with disuse. Previous research on the amphibian aestivator Cyclorana alboguttata (Günther 1867)demonstrated an absence of muscle disuse atrophy after 3 months of aestivation, as measured by gastrocnemius muscle...

...Shit F. Chew; Noelle K. Y. Chan; Ai M. Loong; Kum C. Hiong; Wai L. Tam; Yuen K. Ip SUMMARY This study aimed to elucidate the strategies adopted by the African slender lungfish, Protopterus dolloi , to ameliorate the toxicity of ammonia during short (6 days) or long (40 days) periods of aestivation...

...Nicholas J. Hudson; Michael B. Bennett; Craig E. Franklin SUMMARY The green-striped burrowing frog, Cyclorana alboguttata , survives extended drought periods by burrowing underground and aestivating. These frogs remain immobile within cocoons of shed skin and mucus during aestivation and emerge...

... of the atrophic response during extended periods of inactivity, both artificially imposed (e.g. limb immobilisation) and naturally occurring, such as the quiescence associated with dormancy (e.g. hibernation and aestivation). The severity of muscle atrophy is positively correlated with mass-specific metabolic...

...T. Bishop; M. D. Brand ABSTRACT Cells isolated from the hepatopancreas of the land snail Helix aspersa strongly depress respiration both immediately in response to lowered (oxygen conformation) and, in the longer term, during aestivation. These phenomena were analysed by dividing cellular...

...James E. Flanigan; Philip C. Withers; Michael Guppy ABSTRACT The desert frog Neobatrachus pelobatoides reduced its resting metabolism in vivo by 60–70% during 5–7 weeks of aestivation (summer dormancy). The rate of oxygen consumption ( V ˙ O 2 ) of isolated and intact skeletal muscle, measured...