Results 31 to 40 of about 1,274 (170)

Parasites of the Neotropic cormorant Nannopterum (Phalacrocorax) brasilianus (Aves, Phalacrocoracidae) in Chile

open access: yesRevista Brasileira de Parasitologia Veterinária, 2020
The Neotropic cormorant Nannopterum (Phalacrocorax) brasilianus (Suliformes: Phalacrocoracidae) is widely distributed in Central and South America. In Chile, information about parasites for this species is limited to helminths and nematodes, and little ...
Daniel González-Acuña   +7 more
doaj   +1 more source

Oxidative stress biomarkers are associated with visible clinical signs of a disease in frigatebird nestlings [PDF]

open access: yes, 2017
Infectious diseases are one of the most common threats for both domestic and wild animals, but little is known about the effects on the physiological condition and survival of wild animals.
Abd Elgawad, Hamada   +8 more
core   +4 more sources

Diversity of Coronaviruses in Wild Representatives of the Aves Class in Poland

open access: yesViruses, 2021
The revealed prevalence of coronaviruses in wild bird populations in Poland was 4.15% and the main reservoirs were birds from orders Anseriformes and Charadriiformes, with a prevalence of 3.51% and 5.59%, respectively.
Katarzyna Domańska-Blicharz   +2 more
doaj   +1 more source

A new species ofContracaecum(Nematoda: Anisakidae) found parasitizingNannopterum brasilianus(Suliformes: Phalacrocoracidae) andHoplias argentinensis(Characiformes: Erythrinidae) in South America: morphological and molecular characterization of larval and adult stages [PDF]

open access: yesJournal of Helminthology, 2020
AbstractNematode species of the genusContracaecumRailliet & Henry, 1912 have been reported around the world in many species of fish-eating birds and seals. Here,Contracaecum jorgein. sp. is morphologically described using light and scanning electron microscopy for adults and fourth-stage larvae (L4) found in the birdNannopterum brasilianusand third-
C.J. Sardella   +4 more
openaire   +2 more sources

First detailed survey of waterbirds in Tirunelveli and Tuticorin districts, Tamil Nadu, India [PDF]

open access: yes, 2013
The semi-arid districts of Tirunelveli and Tuticorin in the southern Indian state of Tamil Nadu consist of numerous wetlands in the form of irrigation tanks, interconnected by an ancient network of canals, and fed by the rivers originating from the ...
Abhisheka, K   +4 more
core   +2 more sources

Los Anhingidae (Aves: Suliformes) del Neógeno de América del Sur: sistemática, filogenia y paleobiología [PDF]

open access: yes, 2015
Los Anhingidae están integrados por aves acuáticas conocidas vulgarmente como anhingas o biguá-víboras (darters o snakebirds en inglés), incluidas en el orden Suliformes. Estas aves llegan a pesar de 1,05-1,81 kg y no tienen dimorfismo sexual en tamaño.
openaire   +4 more sources

First data on the trematode fauna of wetland birds in the Samara region (European Russia)

open access: yesActa Biologica Sibirica
We have conducted the first study of trematodes in wetland birds of the Samara region (European Russia). A total of 25 trematode species from 12 families were identified in 8 species of birds.
Nadezhda Yu. Kirillova   +1 more
doaj   +1 more source

Effect of the MC1R gene on sexual dimorphism in melanin-based colorations. [PDF]

open access: yes, 2015
Variants of the melanocortin-1 receptor (MC1R) gene result in abrupt, naturally selected colour morphs. These genetic variants may differentially affect sexual dimorphism if one morph is naturally selected in the two sexes but another morph is naturally ...
Béziers, P.   +6 more
core   +1 more source

Variación poblacional de tres especies de piqueros (Suliformes: Sulidae) en isla Gorgona, Pacífico colombiano, según la temperatura del mar

open access: yesRevista de Biología Tropical, 2020
Introducción: La alteración de la temperatura del ambiente pelágico puede repercutir en la variación poblacional de los consumidores tope como las aves marinas. Objetivo: Evaluar la respuesta poblacional de tres especies de piqueros en isla Gorgona (Pacífico colombiano) con respecto a la variabilidad local y regional de las condiciones de temperatura ...
Perlaza-Gamboa, Alejandro   +3 more
openaire   +3 more sources

Dieta invernal del cormorán imperial <i>Phalacrocorax atriceps</i> (Aves: Suliformes) en Bahía Caulín, Chiloé, sur de Chile [PDF]

open access: yesRevista de Biología Marina y Oceanografía, 2019
The imperial cormorant (Phalacrocorax atriceps) is one of the most abundant cormorant species in the Chilean channels and fjords. Although its reproductive and non-reproductive distributions have been studied, works on its diet are inexistent. This paper describes the diet and determines the dominance and diversity of the prey consumed during the ...
Claudio N. Tobar   +4 more
openaire   +1 more source

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