‘Extinct’ Bird Found in Peru
نویسندگان
چکیده
منابع مشابه
Pleistocene range dynamics and episodic rarity in an extinct bird.
In an influential report in the field of conservation biology, Rabinowitz et al. (1) described seven ways in which species may show rarity, based on different combinations of range size, ecological amplitude, and local abundance; this paper has guided many avenues of thought in the field of conservation biology. To a conservation biologist in the 17th century, however, the passenger pigeon (Ect...
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Since the dramatic announcement by Owen (1842), after examining the shaft of a moa femur, that "there had existed and perhaps still exists in New Zealand a race of struthious birds of larger and more colossal size than the ostrich or any known species", our knowledge of the moa has advanced considerably. Investigations can be classified broadly into three groups. First was the indiscriminate co...
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The South American phorusrhacid bird radiation comprised at least 18 species of small to gigantic terrestrial predators for which there are no close modern analogs. Here we perform functional analyses of the skull of the medium-sized (approximately 40 kg) patagornithine phorusrhacid Andalgalornis steulleti (upper Miocene-lower Pliocene, Andalgalá Formation, Catamarca, Argentina) to assess its m...
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Non-pathological densification (osteosclerosis) and swelling (pachyostosis) of bones are the main modifications affecting the skeleton of land vertebrates (tetrapods) that returned to water. However, a precise temporal calibration of the acquisition of such adaptations is still wanting. Here, we assess the timing of such acquisition using the aquatic sloth Thalassocnus, from the Neogene of the ...
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Pleistocene diversity was much higher than today, for example there were three distinct wolf morphotypes (dire, gray, Beringian) in North America versus one today (gray). Previous fossil evidence suggested that these three groups overlapped ecologically, but split the landscape geographically. The Natural Trap Cave (NTC) fossil site in Wyoming, USA is an ideally placed late Pleistocene site to ...
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ژورنال
عنوان ژورنال: Oryx
سال: 1979
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300016355