Results 41 to 50 of about 55,641 (232)
Richness and abundance of diurnal raptors from Fernandez Canyon, Lerdo, Durango
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
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
Vulture Exclusion Halves Large Carcass Decomposition Rates and Doubles Fly Abundance. [PDF]
We experimentally excluded vultures from pig carcasses (Sus scrofa) in Costa Rica, under different habitats and across seasons with the aim to assess the impact of vulture population decline on carrion decomposition and insect abundance. Vulture exclusion halved carcass decomposition rates and doubled fly abundance, while dung beetle abundance remained
Grootaers J+11 more
europepmc +2 more sources
The Corneal Structure of the Yellow-Legged Gull, Larus michahellis (Naumann, 1840). [PDF]
This study examines the cornea of Larus michahellis using light and electron microscopy, revealing essential structural details. The corneal epithelium is a nonkeratinized, stratified layer with microridges and microvilli that improve optical properties.
Cobo R+4 more
europepmc +2 more sources
Multidirectional chromosome painting substantiates the occurrence of extensive genomic reshuffling within Accipitriformes. [PDF]
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
Development of microsatellite loci for two New World vultures (Cathartidae)
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
Cathartes aura: BirdLife International
openalex +2 more sources
Windsurfing in Mute Swans (Cygnus olor) [PDF]
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
Responses of turkey vultures to unmanned aircraft systems vary by platform
A challenge that conservation practitioners face is manipulating behavior of nuisance species. The turkey vulture (Cathartes aura) can cause substantial damage to aircraft if struck.
Morgan B. Pfeiffer+7 more
doaj +1 more source
Non-leucistic aberrations in the plumage of birds from Nayarit, Mexico
Abnormalities in the plumage are caused by multiple environmental and genetic factors. Plumage aberrations have been reported in Mexico, but all have been classified as leucistic (white color due to a recessive gene).
David Molina+6 more
doaj +1 more source