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The Role of Sirenians in Aquatic Ecosystems
2012The role of sirenians in aquatic ecosystems is largely a function of their feeding ecology. Sirenians are large herbivorous aquatic mammals that often congregate and, being mammals, have high energetic requirements relative to other marine herbivores.
Aragones, Lemnuel V. +4 more
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Sirenians between myth and science
Nymphaea. Folia Naturae BiharieSirenians (also known as sea-cows), as we know them today, represent an order of fully aquatic herbivorous mammals, with a rich fossil record that spans from the Paleogene to the Holocene. In fact, sirenians are the only marine full herbivorous mammals, the others having different diets.
László Veress, Vlad Aurel Codrea
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Utility and Design of Aerial Surveys for Sirenians
2012[Extract] Aerial surveys have been used as a tool to assess aspects of sirenian biology for three decades. Although aerial surveys can be a useful method of assessing sirenian population distribution and abundance, they can be logistically difficult and expensive and may not always be the appropriate method.
Reynolds, John E. +3 more
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Ascaridoid nematodes of Sirenians—the Heterocheilinae redefined
Journal of Helminthology, 1980AbstractThe two ascaridoids of sirenians, Heterocheilus tunicatus Diesing, 1839, and Paradujardinia halicoris (Owen, 1833), are redescribed. A basic affinity between the two species is indicated in the bilateral structure of the excretory system, the globular ventriculus, long intestinal caecum, and the form of the male tail.
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Sirenians in southern Australia—first fossil record
Alcheringa: An Australasian Journal of Palaeontology, 2006The anterior half of the right mandible of a dugong is described from the early Pliocene Loxton Sands of the Murray Basin in South Australia. This is the oldest dugong fossil known in Australia, and, although not identifiable, is possibly antecedent to or the oldest representative of the genus Dugong.
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The readaptation of Eocene sirenians to life in water
Historical Biology, 2000Eocene sirenians and cetaceans simultaneously and independently evolved similar morphological adaptations to aquatic life. These included increased flexibility in the sacral region, reduction and loss of hind limbs, shortening of the neck, increased skeletal mass, and other modifications.
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What Can We Infer About the Behavior of Extinct Sirenians?
Ethology and Behavioral Ecology of Marine Mammals, 2022Daryl P Domning
exaly