Results 1 to 10 of about 1,466 (142)
野生动物学报, 1985 走禽（Cursores）包括有鸵形目（Struthioniformes）美洲鸵目（Rhei-formes）、鹤鸵目（Casuariiformes）、无翼目（Apterygiformes）和（共鸟）形目（Tinamiformes）,又称为平胸总目（Ratitae）或古颌总目（Palaeogna-thae）。走禽是现代鸟类中最大的种类。胸骨扁平不具龙骨突,锁骨退化或消失,骨盆多为封闭型,即左右趾骨在中线形成连合;
许维枢
doaj +2 more sources
Sexual dichromatism increases with altitude in birds with ultraviolet sensitive vision
Journal of Zoology, Volume 326, Issue 1, Page 77-88, May 2025.Previous work has shown a significant relationship between sexual dichromatism and altitude in birds, however, this work was focused on either a small subset of avian diversity or used human scoring to assess sexual dichromatism. In this study, we compared human scoring and spectrophotometry scoring to study this relationship and found no significant ...
D. A. Villar +2 more
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Journal of Anatomy, EarlyView.Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston +5 more
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Journal of Zoological and Botanical GardensBirds kept in zoological institutions are highly exposed to gastrointestinal (GI) parasitism caused by coccidia and nematodes. The current research aimed to characterize the avian GI parasitic fauna in several zoological collections in Portugal and Spain.
João Lozano +12 more
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Veterinary Record Case Reports, Volume 14, Issue 2, May 2026.SUMMARY A 17‐year‐old, 24‐kg, female greater rhea (Rhea americana) presented with an acute onset of left wing droop. Clinical examination and radiographs revealed an open, simple, displaced, short‐oblique diaphyseal fracture of the distal third of the left humerus.
Pierre Huberdeau +6 more
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Diversity and Distributions, Volume 32, Issue 5, May 2026.ABSTRACT Introduction and Aim Spatiotemporal and taxonomic sampling bias in biodiversity occurrence data poses critical challenges for robust ecological inference, species distribution models (SDMs), and conservation planning. Despite the exponential growth in global biodiversity records over recent decades, these biases persist.
Ahmed El‐Gabbas
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Wildlife Biology, Volume 2026, Issue 1, January 2026.During the 18th and 19th centuries, bird feathers (class: Aves) were harvested from wild populations and sold globally in enormous quantities to meet the rising demand of the fashion industry. Although many laws now prevent similar widescale harvest, there is a paucity of studies on the trade that has continued to occur since the 20th century.
Jasmin Broadbridge +2 more
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The Importance of Olfaction for Mixed Paternity in Birds
Ecology and Evolution, Volume 15, Issue 1, January 2025.Olfaction can help individuals finding genetically compatible mates in many animals, while high levels of mixed paternity may reflect a reduced ability to evaluate a mate's profile against their own before mating. We tested this hypothesis by matching estimates of olfactory ability with mixed paternity for a broad range of bird species.
Charlotta Kvarnemo +3 more
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The Lithornithiformes (Aves) from the early Eocene London Clay of Walton‐on‐the‐Naze (Essex, UK)
Papers in Palaeontology, Volume 11, Issue 1, January/February 2025.Abstract We describe multiple partial skeletons and isolated bones of the palaeognathous Lithornithiformes from the early Eocene London Clay of Walton‐on‐the‐Naze (Essex, UK). The well‐preserved specimens are assigned to at least four species of the taxa Lithornis and Pseudocrypturus. Two species of Lithornis are identified as L. nasi and L.
Gerald Mayr, Andrew C. Kitchener
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Vertebrate diversity and biomass along a recovery gradient in a lowland tropical forest
Biotropica, Volume 57, Issue 1, January 2025.Deforestation of tropical forests has resulted in large areas of secondary forests with the potential for biodiversity to re‐establish to levels usually found in old‐growth forests. This study shows that diversity and biomass of mammals and birds in regenerating forests can recover to old‐growth levels within a relatively short time.
Nina Grella +17 more
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