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Evaluation of Cetacean and Sirenian Cytologic Samples
Veterinary Clinics of North America: Exotic Animal Practice, 2007Cytology is a fundamental part of marine mammal veterinary medicine that is involved in preventive medicine programs in captive animals and in the health assessment of wild populations. Marine mammals often exhibit few clinical signs of disease; thus, the cost-effective and widely accessible nature of cytologic sampling renders it one of the most ...
René A, Varela +3 more
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Sirenian (manatees and dugongs) reproductive endocrinology
General and Comparative EndocrinologyReproductive hormones are essential to mating systems, behavior, fertility, gestation, parturition, and lactation in mammals and understanding the role of hormones in these processes is essential for species conservation. Sirenia is a unique order of marine mammals that include manatees, dugongs, and the extinct Steller's sea cow.
Elizabeth, Brammer-Robbins +5 more
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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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The earliest known fully quadrupedal sirenian
Nature, 2001Modern seacows (manatees and dugongs; Mammalia, Sirenia) are completely aquatic, with flipperlike forelimbs and no hindlimbs. Here I describe Eocene fossils from Jamaica that represent nearly the entire skeleton of a new genus and species of sirenian--the most primitive for which extensive postcranial remains are known. This animal was fully capable of
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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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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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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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