New record of Pelecitus sp. (Nematoda, Onchocercidae) as a parasite of Athene cunicularia (Strigiformes, Strigidae) in southeastern Brazil

Silva, Tarcísio Macedo; Okamoto, Adriano Sakai; Silva, Lidiane Aparecida Firmino da; Smaniotto, Bruna Domeneghetti; Silva, Reinaldo José da; Filho, Raphael Lúcio Andreatti

doi:10.1590/s1984-29612014031

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The following supporting information can be downloaded at: , Checklist of parasites reported from Athene cunicularia ; Iconography of ectoparasites found in burrowing owls from Bahia Blanca, Argentina. References [ 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 , 153 , 154 ] are cited in the supplementary materials.…”

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Drivers of the Ectoparasite Community and Co-Infection Patterns in Rural and Urban Burrowing Owls

Sáez-Ventura

López-Montoya

Luna

et al. 2022

Biology

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Urbanization creates new ecological conditions that can affect biodiversity at all levels, including the diversity and prevalence of parasites of species that may occupy these environments. However, few studies have compared bird–ectoparasite interactions between urban and rural individuals. Here, we analyze the ectoparasite community and co-infection patterns of urban and rural burrowing owls, Athene cunicularia, to assess the influence of host traits (i.e., sex, age, and weight), and environmental factors (i.e., number of conspecifics per nest, habitat type and aridity) on its composition. Ectoparasites of burrowing owls included two lice, one flea, and one mite. The overall prevalence for mites, lice and fleas was 1.75%, 8.76% and 3.50%, respectively. A clear pattern of co-infection was detected between mites and fleas and, to less extent, between mites and lice. Adult owls harbored fewer ectoparasites than nestlings, and adult females harbored more lice than males. Our results also show that mite and flea numbers were higher when more conspecifics cohabited the same burrow, while lice showed the opposite pattern. Rural individuals showed higher flea parasitism and lower mite parasitism than urban birds. Moreover, mite numbers were negatively correlated with aridity and host weight. Although the ectoparasitic load of burrowing owls appears to be influenced by individual age, sex, number of conspecifics per nest, and habitat characteristics, the pattern of co-infection found among ectoparasites could also be mediated by unexplored factors such as host immune response, which deserves further research.

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mentioning

confidence: 99%

Drivers of the Ectoparasite Community and Co-Infection Patterns in Rural and Urban Burrowing Owls

Sáez-Ventura

López-Montoya

Luna

et al. 2022

Biology

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The Owls of Brazil

2017

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Systemic Histomoniasis in a Leucistic Indian Peafowl (Pavo cristatus) from Southern Brazil

et al. 2017

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The pathological and molecular findings associated with Histomonas meleagridis are described in a leucistic Indian peafowl (Pavo cristatus) from Southern Brazil. The most significant gross findings were multifocal necrotizing hepatitis and diphtheric typhlitis. Histopathologic evaluation of the liver, ceca, kidney, spleen, and small intestine revealed systemic histomoniasis (SH) associated with intralesional and intravascular accumulations of histomonad organisms consistent with H. meleagridis. PCR was used to amplify the DNA of H. meleagridis from the liver, ceca, small intestine, spleen, lungs, and kidneys. Direct sequencing and phylogenetic analyses confirmed that the isolate of the flagellated trichomonad identified from this investigation is more phylogenetically related to H. meleagridis than Tetratrichomonas gallinarum, Tritrichomonas foetus, and Dientamoeba fragilis. These results confirmed the occurrence of SH in this peafowl and add to the diagnosis of this disease in birds from Brazil. This report might represent the first complete identification of spontaneous histomoniasis in a peafowl due to pathological and molecular characteristics and one of the few documented cases of SH in non-commercial birds.

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New record of Pelecitus sp. (Nematoda, Onchocercidae) as a parasite of Athene cunicularia (Strigiformes, Strigidae) in southeastern Brazil

Cited by 3 publications

References 11 publications

Drivers of the Ectoparasite Community and Co-Infection Patterns in Rural and Urban Burrowing Owls

Drivers of the Ectoparasite Community and Co-Infection Patterns in Rural and Urban Burrowing Owls

The Owls of Brazil

Systemic Histomoniasis in a Leucistic Indian Peafowl (Pavo cristatus) from Southern Brazil

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