Can the intake of antiparasitic secondary metabolites explain the low prevalence of hemoparasites among wild Psittaciformes? [PDF]
Parasites & Vectors, 2018 Background Parasites can exert selection pressure on their hosts through effects on survival, on reproductive success, on sexually selected ornament, with important ecological and evolutionary consequences, such as changes in population viability ...
Juan F. Masello +25 more
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Molecular Detection and Genotyping of Chlamydia psittaci in Birds in Buenos Aires City, Argentina [PDF]
AnimalsChlamydia psittaci is a bacterium that infects several species of birds and mammals. It is the causal agent of avian chlamydiosis and psittacosis in humans and it is globally distributed.
María Julia Madariaga +4 more
doaj +2 more sources
Lost companions: a new quill mite species and its possible coextinction with the Carolina parakeet [PDF]
ParasitologyInvestigations of the parasites associated with extinct avian species provide unique insights into the ecology and evolution of both hosts and their parasitic counterparts. In the present paper, a new quill mite species, Peristerophila conuropsis sp. n.,
Maciej Skoracki +3 more
doaj +2 more sources
Animals, 2022 Xanthogranulomatosis is a common dermatological disease in birds. This form of inflammation, possibly associated with lipometabolic disorders, can also be seen in visceral organs, which as yet has only rarely been described in avian medicine. In general,
Cornelia Konicek +4 more
doaj +1 more source
Parrot Free-Flight as a Conservation Tool
Diversity, 2021 The release of captive-raised parrots to create or supplement wild populations has been critiqued due to variable survival rates and unreliable flocking behavior.
Constance Woodman +2 more
doaj +1 more source
Lipidose hepática em papagaio-verdadeiro (Amazona aestiva) adultos: Revisão
Pubvet, 2022 O presente trabalho traz uma revisão de literatura relacionada aos principais aspectos da lipidose hepática em aves adultas da espécie Amazona aestiva, conhecida como papagaio-verdadeiro ou papagaio-de-fronte-azul, cada vez mais popular como animal de ...
Vitória Naomi Yabiku Toyama +3 more
doaj +1 more source
Frequency dispersion reveals chromophore diversity and colour-tuning mechanism in parrot feathers [PDF]
Royal Society Open Science, 2018 Variation in animal coloration is often viewed as the result of chemically distinct pigments conferring different hues. The role of molecular environment on hue tends to be overlooked as analyses are mostly performed on free pigments extracted from the ...
Jonathan E. Barnsley +3 more
doaj +1 more source
The evolution, distribution and diversity of endogenous circoviral elements in vertebrate genomes [PDF]
, 2018 Circoviruses (family Circoviridae) are small, non-enveloped viruses that have short, single-stranded DNA genomes. Circovirus sequences are frequently recovered in metagenomic investigations, indicating that these viruses are widespread, yet they remain ...
Dennis, Tristan P.W. +5 more
core +1 more source
Halcyornis toliapicus (aves: Lower Eocene, England) indicates advanced neuromorphology in Mesozoic Neornithes [PDF]
, 2011 Our recent X-ray micro computer-tomographic (μCT) investigations of Prophaethon shrubsolei and Odontopteryx toliapica from the Lower Eocene London Clay Formation of England revealed the avian brain to have been essentially modern in form by 55 Ma, but ...
Allison P. A. +11 more
core +1 more source
Granulomatous ventriculitis caused by Pythium insidiosum in a rosella (Platycercus eximius) [PDF]
Pesquisa Veterinária Brasileira: Pythiosis is an infectious disease caused by the oomycete Pythium insidiosum and can affect various systems/tissues, including cutaneous, digestive and respiratory tracts.
Aline R. Baron +7 more
doaj +1 more source