Results 21 to 30 of about 4,023 (251)
Richness and abundance of diurnal raptors from Fernandez Canyon, Lerdo, Durango
Huitzil, 2020 Biological monitoring is essential to understand population dynamics, ecological processes and emerging problems. In this study we determine the richness and abundance of diurnal raptors in the Fernandez Canyon State Park in Durango, Mexico.
Jesús Favela-Mesta +1 more
doaj +1 more source
Multidirectional chromosome painting substantiates the occurrence of extensive genomic reshuffling within Accipitriformes. [PDF]
, 2015 BACKGROUND: Previous cross-species painting studies with probes from chicken (Gallus gallus) chromosomes 1-10 and a paint pool of nineteen microchromosomes have revealed that the drastic karyotypic reorganization in Accipitridae is due to extensive ...
Beiyuan Fu +10 more
core +3 more sources
, 2021 Cathartes aura jota (Molina, 1782) Turkey vulture—Jote de cabeza colorada Colpocephalum kelloggi Osborn, 1902 Falcolipeurus marginalis (Osborn, 1902) Laemobothrion (Laemobothrion) glutinans Nitzsch [in Giebel ...
Gonza ́ Lez-Acun, Daniel A. +1 more
openaire +3 more sources
Embryonic exposure of chicken chicks (Gallus gallus domesticus) leads to heightened sensitivities towards the exposed scent [PDF]
, 2017 In chickens, food consumption can be altered by exposing the chicks to scents as embryos. We exposed eggs to an orange-scented food additive in the final days of incubation. Following hatching, we tested these exposed chicks’ ability to detect this scent
Cunningham, Gregory B., Hughes, Ryan
core +2 more sources
Frontiers in Earth Science, 2021 In 1976 John Ostrom published an enlightening paper about the anatomical transformations in the shoulder girdle and forelimb elements along the origin of birds.
Fernando E. Novas +6 more
doaj +1 more source
Development of microsatellite loci for two New World vultures (Cathartidae)
BMC Research Notes, 2019 Objective Use next-generation sequencing to develop microsatellite loci that will provide the variability necessary for studies of genetic diversity and population connectivity of two New World vulture species.
Darren J. Wostenberg +4 more
doaj +1 more source
First nesting record of Turkey Vulture (Cathartes aura) in El Salvador
Huitzil, 2019 Despite the Turkey Vulture (Cathartes aura) being one of the most abundant scavengers on the American continent, details of their reproductive biology remain unknown in some countries.
Diego Arévalo-Ayala, Guillermo Funes
doaj +1 more source
A phylogeny of birds based on over 1,500 loci collected by target enrichment and high-throughput sequencing [PDF]
, 2012 Evolutionary relationships among birds in Neoaves, the clade comprising the vast majority of avian diversity, have vexed systematists due to the ancient, rapid radiation of numerous lineages.
Brumfield, Robb T. +5 more
core +5 more sources
Proceedings of the Young Researchers Workshop on Positivity in Lie Groups [PDF]
arXiv, 2022 These notes transcribe a workshop about the notion of total positivity and $\Theta$-positivity and its relation to Higher Teichm\"uller Theory. $\Theta$-positivity is a notion of positivity in semisimple Lie groups and was recently introduced by Guichard and Wienhard as a generalization of Lusztig's total positivity.
arxiv
Windsurfing in Mute Swans (Cygnus olor) [PDF]
, 2016 Mute Swans (Cygnus olor) were observed using tailwind as a support for high-speed water transportation on three different occasions in three different locations in Sweden. With the wings arched over the back, they traveled similar to 100 m in an inlet of
Terenius, Olle
core +1 more source