Results 281 to 290 of about 132,568 (324)
Some of the next articles are maybe not open access.
Passive electroreception in aquatic mammals
Journal of Comparative Physiology A, 2012Passive electroreception is a sensory modality in many aquatic vertebrates, predominantly fishes. Using passive electroreception, the animal can detect and analyze electric fields in its environment. Most electric fields in the environment are of biogenic origin, often produced by prey items.
Nicole U, Czech-Damal +3 more
openaire +2 more sources
Conservation of Amazonian aquatic mammals
Aquatic Conservation: Marine and Freshwater Ecosystems, 2021Abstract Aquatic mammals worldwide are highly threatened in freshwater ecosystems where they are affected by direct human activities (e.g. hunting) as well as indirect human alteration of freshwater ecosystems (e.g. dams, mining activity). Although aquatic mammals of the Amazon Basin are experiencing many growing threats, little is known about the ...
Sannie Brum +5 more
openaire +1 more source
Effects of endocrine disruptors in aquatic mammals
Pure and Applied Chemistry, 2003In the last few decades, various studies have shown that aquatic mammals are sensitive to the toxicological effects of certain xenobiotic compounds, including the large class of endocrine-disrupting chemicals (EDCs). Since some EDCs, particularly organochlorines, tend to bioaccumulate and biomagnify in the aquatic food chain, various aquatic mammals ...
FOSSI, MARIA CRISTINA, MARSILI, LETIZIA
openaire +3 more sources
Morbillivirus infections in aquatic mammals
Journal of Comparative Pathology, 1998Morbillivirus infections which were not documented in aquatic mammals until 1988, have caused at least five epizootics in these species during the last 10 years. Affected populations include European harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus) in 1998, Baikal seals (Phoca siberica) in Siberia from 1987-1988, striped dolphins ...
openaire +2 more sources
Cone visual pigments of aquatic mammals
Visual Neuroscience, 2005It has long been hypothesized that the visual systems of animals are evolutionarily adapted to their visual environment. The entrance many millions of years ago of mammals into the sea gave these new aquatic mammals completely novel visual surroundings with respect to light availability and predominant wavelengths.
Lucy A, Newman, Phyllis R, Robinson
openaire +2 more sources
Surfactant from diving aquatic mammals
Journal of Applied Physiology, 2004Diving mammals that descend to depths of 50-70 m or greater fully collapse the gas exchanging portions of their lungs and then reexpand these areas with ascent. To investigate whether these animals may have evolved a uniquely developed surfactant system to facilitate repetitive alveolar collapse and expansion, we have analyzed surfactant in ...
Roger G, Spragg +4 more
openaire +2 more sources
2001
The visual system of aquatic mammals is of special interest because of its mostly amphibious mode of action. Although truely aquatic mammals (cetaceans, sirenians) spend their entire lives in water, their aerial mode of breathing confines them to the superficial water layer. Semiaquatic mammals (pinnipeds) spend a significant proportion of time on land.
Alexander Ya. Supin +2 more
openaire +1 more source
The visual system of aquatic mammals is of special interest because of its mostly amphibious mode of action. Although truely aquatic mammals (cetaceans, sirenians) spend their entire lives in water, their aerial mode of breathing confines them to the superficial water layer. Semiaquatic mammals (pinnipeds) spend a significant proportion of time on land.
Alexander Ya. Supin +2 more
openaire +1 more source
Morbillivirus Infections in Aquatic Mammals: A Brief Overview
Journal of Veterinary Medicine Series A, 2005SummarySince 1987, at least eight morbillivirus infection (MI) epidemics have caused mass mortality of several free‐living pinniped and cetacean populations around the world. The responsible agents, all belonging to the genus Morbillivirus (family Paramyxoviridae), have been characterized as either ‘canine distemper virus’ strains, infecting pinnipeds,
DI GUARDO, Giovanni +3 more
openaire +3 more sources
1989
Cold water has been described as the harshest thermal environment encountered by mammals anywhere on earth (Irving 1973). This is a perception undoubtedly reinforced by our own limited thermoregulatory competence in the aquatic medium. In 0°C water, the rectal body temperature (Tb) of an adult human may drop at a rate of 0.07–0.08°C min-1, resulting in
openaire +1 more source
Cold water has been described as the harshest thermal environment encountered by mammals anywhere on earth (Irving 1973). This is a perception undoubtedly reinforced by our own limited thermoregulatory competence in the aquatic medium. In 0°C water, the rectal body temperature (Tb) of an adult human may drop at a rate of 0.07–0.08°C min-1, resulting in
openaire +1 more source
2017
Virtually all mammals can swim at least sufficiently well to cross bodies of water, but the extent of specific adaptation for aquatic life varies amongst different mammals from no more than modified behaviour like the Japanese macaque monkeys spending their days sitting in hot springs, through different degrees of amphibiousness to the permanently ...
openaire +1 more source
Virtually all mammals can swim at least sufficiently well to cross bodies of water, but the extent of specific adaptation for aquatic life varies amongst different mammals from no more than modified behaviour like the Japanese macaque monkeys spending their days sitting in hot springs, through different degrees of amphibiousness to the permanently ...
openaire +1 more source