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| http://dx.doi.org/10.1177/15357597231176235 | DOI Listing |
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Emergence of highly pathogenic avian influenza viruses H5N1 and H5N5 in white-tailed eagles, 2021-2023.
J Gen Virol
November 2024
Norwegian Veterinary Institute, P.O. Box 64, NO-1432 Ås, Norway.
Article Synopsis
- * Post-mortem examinations of WTEs showed no major visible issues, but microscopic analyses revealed organ damage and virus presence, indicating a widespread infection.
- * Phylogenetic studies indicate the HPAIV H5N1 genotype was likely introduced to Norway by migratory birds and was linked to outbreaks in seabirds, suggesting WTEs may act as indicators for these viruses, though not all strains seem to affect them similarly.
Implications of human-wildlife conflict on the diet of an endangered avian top predator in the northern Andes.
Sci Rep
June 2024
Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, USA.
Conflicts between rural people and the Endangered Black-and-chestnut Eagle (Spizaetus isidori) are a prominent conservation concern in the northern Andes, as at least 60 eagles were poached between 2000 and 2022 in response to poultry predation. Here, we conducted direct observations to analyze the Black-and-chestnut Eagle diet and evaluated how forest cover affects the feeding habits of the species during nestling-rearing periods in 16 nests located in different human-transformed Andean landscapes of Ecuador and Colombia. We analyzed 853 prey items (46 species) delivered to nestlings.
View Article and Find Full Text PDFBeak and feather disease virus detected in the endangered Red Goshawk (Erythrotriorchis radiatus).
Sci Rep
May 2024
School of Agriculture, Environmental and Veterinary Sciences, Faculty of Science, Charles Sturt University, Wagga Wagga, NSW, Australia.
We report the first detection and prevalence of Beak and feather disease virus (BFDV) in Australia's Red Goshawk (Erythrotriorchis radiatus). This is a new host for this pervasive pathogen amongst a growing list of non-psittacine species including birds of prey from the orders Accipitriformes (hawks, eagles, kites), Falconiformes (falcons and caracas), and Strigiformes (owls). The Red Goshawk is the first non-psittacine species listed as Endangered to be diagnosed with BFDV.
View Article and Find Full Text PDFFirst species record of Strigea falconis Szidat, 1928 (Trematoda, Strigeidae) from gyrfalcon Falco rusticolus in Iceland-pros and cons of a complex life cycle.
Parasitol Res
March 2024
Laboratory of Parasitology, Institute for Experimental Pathology, Keldur, University of Iceland, IS-112, Reykjavík, Iceland.
Article Synopsis
- Strigea falconis is a parasite affecting birds of prey and owls, with recent research identifying its first occurrence in Iceland, marking the northernmost range for this species.
- The study involved collecting adult parasites from gyrfalcons in Iceland and using both morphological and genetic methods to analyze them.
- The findings suggest these gyrfalcons likely contracted the parasite by feeding on migratory birds, as Iceland lacks suitable intermediate hosts for S. falconis to complete its life cycle.
While the impact of introduced predators is a widely acknowledged issue and key component of conservation considerations for endemic waterbird populations in the Hawaiian Islands, the impact of native predators on endemic, endangered waterbirds is not as frequently discussed or factored into recovery models. The Pueo (Hawaiian Short-eared Owl; ) is a subspecies of Short-eared Owl endemic to the Hawaiian Islands and is State-listed as Endangered on the island of O'ahu. The Ae'o (Hawaiian Stilt; ) is a subspecies of the Black-necked Stilt endemic to Hawai'i and is federally listed as Endangered throughout its range.
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