Gastrointestinal and external parasites of the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in Chile

Abstract Buteogallus schistaceus (Sundevall) is an endemic bird of prey from the Amazon region, with a declining population according to international conservation agencies. The objective of this study was to report the occurrence of a parasitic nematodes in an individual treated at the Ambulatório de Animais Silvestres of Universidade Federal Rural da Amazônia, Belém campus. The animal was captured on campus and showed no resistance to capture. Fluid therapy and deworming were made, later the bird regurgited ten nematodes identified as belonging to the genus Procyrnea Chabaud (1958). Reviewing the scientific literature, it was found that so far there are no records on the helminth fauna of this bird species, which is therefore the first report of a nematode in B. schistaceus.

“…In a recent publication, Procyrnea sp. has been reported in Geranoaetus polyosoma (Quoy & Gaimard) (Aves: Accipitridae) in Chile (Grandón-Ojeda et al, 2019).…”

Section: Discussionmentioning

confidence: 98%

First record of Procyrnea sp. (Nematoda: Habronematidae) in Buteogallus schistaceus (Sundevall) (Accipitriformes: Accipitridae) in Brazilian Amazon

Mangas

Cruz

Ribeiro

et al. 2020

“…In Chile, this species has been recorded from the same host by González-Acuña et al (2008). Furthermore, other species of Degeeriella, such Degeeriella carruthi (Emerson, 1955), D. elani Tendeiro, 1955, D. epustulata (Carriker, 1903, D. fulva (Giebel, 1874), D. leucopleura (Nitzsch, 1874), and D. rufa (Burmeister, 1838) have been reported infesting other raptors distributed across the country (Moreno & González-Acuña, 2015;Grandón-Ojeda et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Craspedorrhynchus Kéler, 1938 andDegeeriella Neumann, 1906 are lice restricted to accipitrid (Accipitriformes) and falconid (Falconiformes) birds of prey (Price et al, 2003). In Chile, these genera have been recorded in the red-backed hawk [Geranoaetus polyosoma (Quoy & Gaimard, 1824)] (Accipitriformes) (Grandón-Ojeda et al, 2019). For the Harris's hawk, there are previous records of Craspedorrhynchus sp.…”

Section: Discussionmentioning

confidence: 99%

Helminth and ectoparasitic faunas of the Harris’s hawk, Parabuteo unicinctus (Accipitriformes: Accipitridae), in Chile: new data on host-parasite associations for Neotropical raptors

Oyarzún‐Ruiz

Cifuentes-Castro

Varas

et al. 2022

Self Cite

Birds of prey harbor a wide spectrum of various parasites, mostly with a heteroxenous life cycle. However, most reports on their parasites come from Europe. Although the Harris’s hawk (Parabuteo unicinctus) is a widespread species in America, parasitological surveys on this hawk are mostly focused on coprological findings and ectoparasites, with poor attention paid to helminths. The aim of this study was to gather new and additional data on host-parasite associations for the Harris’s hawk. Twenty-nine birds from central and southern Chile were necropsied. Further, nine birds from a rehabilitation center and 22 museum specimens were inspected for ectoparasites. Sixty-eight percent of birds hosted at least one parasite species. Four lice species, one mite species and eight helminth species (five nematodes, two platyhelminthes and one acanthocephalan) were recorded. Parasitic lice Colpocephalum nanum and Nosopon chanabense, and a nematode Cyathostoma (Hovorkonema) americana were recorded for the first time in raptors from the Neotropics. A feather mite, Pseudalloptinus sp., nematodes, Physaloptera alata and Microtetrameres sp., and a trematode Neodiplostomim travassosi, were recorded for the first time in Chile. The presence of diverse heteroxenous helminths reported here in the Harris’s hawk could be explained by the generalist diet of this raptor.

“…References: Machado (1940) , Thatcher & Nickol (1972) , Müller (2005) in Ruas et al (2008) , Ruas et al (2008) , Gomes et al (2012) , Drago et al (2015) , Silveira & Calegaro-Marques (2016) , Grandón-Ojeda et al (2019) and Oyarzún-Ruiz et al (2022) …”

Section: Checklist Of Bird and Mammal Hosts Of Centrorhynch...mentioning

confidence: 99%

Centrorhynchus spp. (Acanthocephala) in South America: new anuran record and checklist of vertebrate hosts

Oliveira,

Mascarenhas,

Müller

2024

The aim of this study was to record Centrorhynchus sp. associated with the exotic species Aquarana catesbeiana (bullfrog) in southern Brazil and to present a checklist of vertebrate hosts in South America. Twenty-nine adults and juveniles of A. catesbeiana were collected in Capão do Leão, state of Rio Grande do Sul, Brazil, between October 2019 and December 2020. We found 275 specimens of Centrorhynchus sp. cystacanths in the stomach musculature and coelomic cavity of 55.1% of hosts (16). There was no significant differences in the prevalence and mean intensity of infection with cystacanths when compared males and females of A. catesbeiana. The prevalence was significantly higher in adults than in juveniles. The checklist presents 106 species of vertebrate hosts and 14 taxa of Centrorhynchus recorded in nine South American countries. Avian were the main definitive hosts of Centrorhynchus spp. and snakes Dipsadidae, anurans Hylidae and Leptodactylidae the main paratenic hosts in South America. This is the first record of Centrorhynchus cystacanths in A. catesbeiana in the South America. The study provides tools to help understand the parasitic relationships between species of Centrorhynchus and A. catesbeiana and other hosts in areas where bullfrog have been introduced.