Results 1 to 10 of about 388,635 (273)
A physiological adaptation to undernutrition
Annals of Human Biology, 1994 A total of 432 children under the age of 10 years were measured for height and weight, and the morbidity and mortality indices were studied in six counties of the maize region of the state of Yucatán, Mexico. Undernutrition, because of its relationship to morbidity and mortality, was considered an important selection factor operating between the ages ...
G. Balam, Francisco D. Gurri
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Physiological adaptations in Coleoptera on Spitsbergen [PDF]
Polar Research, 1986 Metabolic rates and Qlo values were determined for three species of Spitsbergen Coleoptera, Amara quenseli, Simplocaria metallica and Rhynchaenw flagellum. The beetles had metabolic rates which were elevated compared to values of Coleoptera from other regions.
Karl Erik Zachariassen +2 more
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Physiological Adaptation in Desert Birds [PDF]
BioScience, 2005 We call into question the idea that birds have not evolved unique physiological adaptations to desert environments. The rate at which desert larks metabolize energy is lower than in mesic species within the same family, and this lower rate of living translates into a lower overall energy requirement in the wild.
Williams, JB +2 more
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Editorial: Physiological Adaptations to Swimming in Fish [PDF]
Frontiers in Physiology, 2017 Fil: Palstra, Arjan P..
Planas, Josep V. +2 more
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Unpacking and validating the “physiological adaptation” core concept of physiology
Advances in Physiology Education, 2023 An Australian Task Force of physiology educators identified physiological adaptation as a core concept of physiology. It was subsequently unpacked into four themes and nine subthemes. These were rated, by the Task Force, Essential or Important and Moderately Difficult for students to learn.
Estaphan, Suzanne +23 more
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Physiological adaptation in savanna ungulates [PDF]
Proceedings of the Nutrition Society, 1997 Savannas lie between the equatorial rain forests and the semi-deserts of the southern continents. From the herbivore’s viewpoint, the savanna environment is characterized by a mixture of herbaceous and woody vegetation, varying in quantity and growth stage according to the seasonal cycle of rainfall. C4 grasses (i.e.
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Heat stress: physiology of acclimation and adaptation [PDF]
Animal Frontiers, 2018 Climate is the most important ecological factor determining the growth, development, and productivity of domestic animals (Adams et al., 1998). Climate changes impact the economic viability of livestock production systems worldwide (Klinedinst et al., 1993) through a variety of routes.
R.B. Zimbelman +3 more
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Physiological Adaptations to Swimming in Fish
, 2017 Swimming is an integral part of the life history of many fish species as is intimately linked with their ability to express feeding and predator avoidance behaviors, habitat selection and environmental preferences, social and reproductive behaviors as well as migratory behaviors.
Leonardo J. Magnoni +2 more
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Retinal physiology: Adapting to the changing scene [PDF]
Current Biology, 1997 The retina needs to process visual information under a wide range of conditions, a feat facilitated by gain controls. Recent results have provided new insights into one such gain control, which enables the retina to adapt to wide variations in the level of contrast in the visual scene.
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Physiological Adaptions to Acute Hypoxia
, 2022 When tissues are insufficiently supplied with oxygen, the environment is said to be hypoxic. Acute (exposures to) hypoxia can occur occupationally, within the scope of training and competitions or under pathological conditions. The increasing interest in acute exposure to altitude for training and research purposes makes it more important than ever to ...
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