Results 41 to 50 of about 2,177 (154)
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
wiley +1 more source
An atypical case of proventricular dilatation in a Red-and-green Macaw (Ara Chloropterus) [PDF]
, 2019 A Red-and-green Macaw (Ara chloropterus) was presented with regurgitation and passage of undigested seeds in the feces. Radiographic examination revealed dilatation of the proventriculus.
Geerinckx, Lise +4 more
core
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
wiley +1 more source
Parsimony and Model-Based Analyses of Indels in Avian Nuclear Genes Reveal Congruent and Incongruent Phylogenetic Signals [PDF]
, 2013 Insertion/deletion (indel) mutations, which are represented by gaps in multiple sequence alignments, have been used to examine phylogenetic hypotheses for some time.
Bowie, Rauri CK +4 more
core
A multiplex PCR for detection of poxvirus and papillomavirus in cutaneous warts from live birds and museum skins [PDF]
, 2012 Viral cutaneous lesions are frequent in some bird populations, though we are generally ignorant of the causal agent. In some instances, they represent a threat to livestock and wildlife health.
Figuerola, Jordi
core +2 more sources
Kiwi forego vison in the guidance of their nocturnal activities [PDF]
, 2007 We propose that the Kiwi visual system has undergone adaptive regression evolution driven by the trade-off between the relatively low rate of gain of visual information that is possible at low light levels, and the metabolic costs of extracting that ...
Corfield, Jeremy +5 more
core
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
wiley +1 more source
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
Multi-modal locomotion:from animal to application [PDF]
, 2013 The majority of robotic vehicles that can be found today are bound to operations within a single media (i.e. land, air or water). This is very rarely the case when considering locomotive capabilities in natural systems.
Burgess, S. C. +2 more
core +1 more source
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
wiley +1 more source