Results 1 to 10 of about 249 (141)

Genomic Surveillance Uncovers the Silent Spread of Avian Influenza Virus (H5N1 2.3.4.4b) Among Wild Birds and Mammals Along Brazil’s Southern Coast [PDF]

open access: yesViruses
Avian influenza viruses (AIVs) are widely distributed and have a wide range of hosts. Recently, the number of cases of infection associated with the circulation of highly pathogenic avian influenza H5N1 2.3.4.4b has raised concerns about its high ...
Yasmin Luisa Neves Lemes Garcia   +20 more
doaj   +2 more sources

Carotenoid-based skin ornaments reflect foraging propensity in a seabird, Sula leucogaster. [PDF]

open access: yesBiol Lett, 2018
Carotenoid-based ornaments are common signalling features in animals. It has long been proposed that such ornaments communicate information about foraging abilities to potential mates. However, evidence linking foraging with ornamentation is largely missing from unmanipulated, free-ranging populations.
Michael NP   +8 more
europepmc   +6 more sources

Toxoplasma gondii antibodies in tropical seabirds from the Rocas Atoll Biological Reserve, Brazil [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária
Toxoplasma gondii is a coccidian that infects almost all warm-blooded animals, including birds. Rocas Atoll Biological Reserve, located in the northeast of Brazil, is the only atoll in the South Atlantic, and home to the largest population of seabirds in
Daniela Bueno Mariani   +8 more
doaj   +2 more sources

Hematological and biochemical reference intervals for populations of seabird species from an Archipelago in Rio de Janeiro, Brazil [PDF]

open access: yesFrontiers in Veterinary Science
IntroductionEstablishing reliable hematological and biochemical reference intervals for seabirds is essential for health assessment, rehabilitation, and conservation programs. However, baseline physiological data for these animals remain scarce.
Joana Maçaira   +6 more
doaj   +2 more sources

A ‘fish finder’ for birds? Route-dependent foraging behavior of the brown booby (Sula leucogaster) following a passenger ferry in the Ogasawara Islands, Japan [PDF]

open access: yesPeerJ
While seabird associations with fishing vessels are well-documented, interactions with non-fishing vessels remain poorly understood. This study investigated the foraging behavior of the brown booby (Sula leucogaster) associated with a passenger ferry in ...
Ryota Hayashi
doaj   +3 more sources

Year-round at-sea distribution and trophic resources partitioning between two sympatric Sulids in the tropical Atlantic. [PDF]

open access: yesPLoS ONE, 2021
In the oligotrophic tropical marine environment resources are usually more patchily distributed and less abundant to top predators. Thus, spatial and trophic competition can emerge, especially between related seabird species belonging to the same ...
Nathalie Almeida   +9 more
doaj   +2 more sources

SURVIVAL OF BROWN BOOBIES (SULA LEUCOGASTER) AT JOHNSTON ATOLL: A LONG-TERM STUDY [PDF]

open access: yesAuk, 2003
AbstractSurvival of Brown Boobies (Sula leucogaster) at Johnston Atoll was examined over a 17-year period using capture-mark-recapture analysis. Annual adult survival was estimated to be 0.90 ± 0.01 (SE). Variation in survival did not correspond to either local environmental fluctuation or more widespread disturbances associated with El Niño-Southern ...
Paul F Doherty
exaly   +5 more sources

Ecología reproductiva del bobo café (Sula leucogaster) en Morros El Potosí, Guerrero, México

open access: yesRevista Mexicana de Biodiversidad, 2009
Entre enero y junio de 2006 se estudió la ecología reproductiva del bobo café (Sula leucogaster) en Morros El Potosí, Guerrero. Determinamos parámetros reproductivos, profundidad máxima de buceo, duración de viajes de forrajeo y porcentaje de atención ...
Juan Pablo Ceyca, Eric Mellink
doaj   +3 more sources

Molecular detection of Toxoplasma gondii and Neospora caninum in seabirds collected along the coast of Santa Catarina, Brazil [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária
Toxoplasma gondii and Neospora caninum are two closely related protozoans that infect a wide range of animals, including birds. However, the occurrence of N. caninum and T. gondii in seabirds is unknown.
Ana Paula Sato   +8 more
doaj   +2 more sources

OSTEOLOGY OF THE FEEDING APPARATUS OF MAGNIFICENT FRIGATEBIRD FREGATA MAGNIFICENS AND BROWN BOOBY SULA LEUCOGASTER (AVES: SULIFORMES)

open access: yesPapéis Avulsos de Zoologia, 2017
In this paper, we describe the skulls of Magnificent Frigatebird Fregata magnificens (Fregatidae) and Brown Booby (Sulidae) Sula leucogaster, with focus on the structures associated with the Musculi mandibulae.
CAIO JOSÉ CARLOS   +2 more
doaj   +4 more sources

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