Results 11 to 20 of about 2,126 (153)

A histological survey of avian post-natal skeletal ontogeny [PDF]

open access: yesPeerJ, 2021
Bone histology of crown-group birds is a research topic of great interest, permitting insight into the evolution of remarkably high growth rates in this clade and variation across the altricial-precocial spectrum.
Jessie Atterholt, Holly N. Woodward
doaj   +2 more sources

Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae) [PDF]

open access: yes, 2014
Emus (Dromaius novaehollandiae) are exclusively terrestrial, bipedal and cursorial ratites with some similar biomechanical characteristics to humans. Their growth rates are impressive, as their body mass increases eighty-fold from hatching to adulthood ...
Abourachid   +69 more
core   +9 more sources

Evolution of posture in amniotes–Diving into the trabecular architecture of the femoral head

open access: yesJournal of Evolutionary Biology, Volume 36, Issue 8, Page 1150-1165, August 2023., 2023
We use 3D microanatomical parameters measured at the femoral head to study femoral posture in amniotes. We show that these parameters are not good indicators of femoral posture. Methods of ancestral state reconstruction hold great promise for improving our understanding of the evolution of posture in amniotes.
Jordan Gônet   +2 more
wiley   +1 more source

Spatial and species-level predictions of road mortality risk using trait data [PDF]

open access: yes, 2018
Aim: Wildlife-vehicle collisions are recognized as one of the major causes of mortality for many species. Empirical estimates of road mortality show that some species are more likely to be killed than others but to what extend this variation can be ...
Alamgir   +51 more
core   +1 more source

Global patterns and predictors of avian population density

open access: yesGlobal Ecology and Biogeography, Volume 32, Issue 7, Page 1189-1204, July 2023., 2023
Abstract Aim How population density varies across animal species in the context of environmental gradients, and associated migratory strategies, remains poorly understood. The recent influx of avian trait data and population density estimates allows these patterns to be described and explored in unprecedented detail.
Luca Santini   +4 more
wiley   +1 more source

Aspectos nutricionales y sociales del consumo de la carne de avestruz: el caso de España

open access: yesRevista Española de Nutrición Humana y Dietética, 2013
El consumo de carne de avestruz se introdujo en Europa hace relativamente poco tiempo y aun hoy es considerada como una carne exótica. No obstante, se ha valorado repetidamente su inclusión entre las fuentes habituales de proteínas de origen animal en ...
Alicia Aguilar, Xavier Medina
doaj   +1 more source

Bird genetic databases need improved curation and error reporting to NCBI

open access: yesIbis, Volume 165, Issue 2, Page 472-481, April 2023., 2023
The ongoing biodiversity crisis is causing rapid species losses faster than taxonomists' capacity to describe new species. Integrative taxonomic approaches need robust taxonomic baseline data to correctly describe and conserve global species diversity, in which genetic data are one of the pillars.
Matthijs P. van den Burg   +1 more
wiley   +1 more source

Allometry of the pectoral flight muscles in birds: Flight style is related to variability in the mass of the supracoracoideus muscle

open access: yesJournal of Zoology, Volume 319, Issue 4, Page 264-273, April 2023., 2023
Allometry of the pectoralis and supracoracoideus flight muscles with body mass was explored in birds. Pectoralis muscle exhibited isometry but the supracoracoideus exhibited significant negative allometry. Both muscles were significantly affected by order. Flight style in birds reflects differing proportions of the flight muscles. Abstract Avian flight
D. C. Deeming
wiley   +1 more source

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