Results 81 to 90 of about 728 (153)

Conservation Genetics of the Reintroduced Giant Tortoises (Aldabrachelys gigantea) in Madagascar

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
The Aldabra giant tortoise is the only surviving lineage of Malagasy megafauna, eradicated by human activities over the last millennium. In 2018, the first rewilding project was launched in the Anjajavy Reserve (NW Madagascar), using 12 founder individuals of unknown origin.
Guillaume Besnard   +9 more
wiley   +1 more source

Ratites, game birds and minor poultry species

open access: yes, 2009
There is considerable emphasis on understanding the breeding biology of domestic fowl, turkeys and duck but not of the other commercially significant species, such as ratites, gamebirds, guinea fowl and pigeons.
Charles Deeming (17156617)
core   +5 more sources

Bone Mineral Density of Willow Ptarmigan (Lagopus lagopus) as a Potential Taphonomic Factor in Skeletal Part Attrition

open access: yesInternational Journal of Osteoarchaeology, Volume 35, Issue 5, Page 284-294, September/October 2025.
ABSTRACT Agents of taphonomy can bias skeletal parts and the frequency of bones in archaeological sites. An important factor to consider is the possible effect of bone density‐mediated attrition on archaeornithological assemblages. We scanned willow ptarmigan (Lagopus lagopus) specimens using a Lunar iDXA and an enCcore small animal body add‐on to ...
Frank J. Dirrigl Jr.   +1 more
wiley   +1 more source

A new, major C27 biliary bile acid in the Red-winged tinamou (Rhynchotus rufescens):(25R)-1β,3α,7α-trihydroxy-5β-cholestan-27-oic acid*

open access: yesJournal of Lipid Research, 2009
The chemical structures of the three major bile acids present in the gallbladder bile of the Red-winged tinamou (Rhynchotus rufescens), an early evolving, ground-living bird related to ratites, were determined.
Lee R. Hagey   +9 more
doaj   +1 more source

Farmed ratites in Europe

open access: yesAnimal Welfare, 1997
In April this year the Standing Committee of the European Convention for the Protection of Animals kept for Farming Purposes adopted a Recommendation (a 15 page document) on the management of farmed ratites (ostriches, emus and rheas). In accordance with Article 9 of the Convention, the Recommendation will enter into force on 22 October 1997.
openaire   +1 more source

Applications of thermal imaging in avian science [PDF]

open access: yes, 2013
Thermal imaging, or infrared thermography, has been used in avian science since the 1960s. More than 30 species of birds, ranging in size from passerines to ratites, have been studied using this technology.
Dominic J. McCafferty, McCafferty, D.J.
core   +1 more source

Data from: Genomic support for a moa-tinamou clade and adaptive morphological convergence in flightless ratites

open access: yes, 2014
One of the most startling discoveries in avian molecular phylogenetics is that the volant tinamous are embedded in the flightless ratites, but this topology remains controversial because recent morphological phylogenies place tinamous as the closest ...
McPherson, John D.   +3 more
core   +1 more source

Serosurvey of selected avian pathogens in brazilian commercial Rheas (Rhea americana) and Ostriches (Struthio camelus)

open access: yesBrazilian Journal of Poultry Science, 2009
Ratite farming of has expanded worldwide. Due to the intensive farming methods used by ratite producers, preventive medicine practices should be established.
OC de Freitas Neto   +5 more
doaj   +1 more source

Comparative morphology of the species of Libyostrongylus and Codiostomum, parasites from ostriches, Struthio camelus, with a identification key to the species

open access: yesRevista Brasileira de Parasitologia Veterinária
One of the most common problems in breeding of ostriches in captivity is the control of parasitic diseases. This work presents keys for the identification of adult nematodes and infective larvae by morphologic and morphometric characteristics. These keys
Nicole Brand Ederli   +1 more
doaj   +1 more source

Symmetry breaking in the embryonic skin triggers directional and sequential plumage patterning.

open access: yesPLoS Biology, 2019
The development of an organism involves the formation of patterns from initially homogeneous surfaces in a reproducible manner. Simulations of various theoretical models recapitulate final states of natural patterns, yet drawing testable hypotheses from ...
Richard Bailleul   +5 more
doaj   +1 more source

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