Avian Haemosporidian Parasites Infection in Wild Birds Inhabiting Minami-Daito Island of the Northwest Pacific, Japan

Murata, Koichi; Nii, Ryosuke; Yui, Saori; Sasaki, Emi; Ishikawa, Satoshi; Sato, Yukita; Matsui, Shin; Horie, Sayaka; Akatani, Kana; Takagi, Masaoki; Sawabe, Kyoko; Tsuda, Yuichi

doi:10.1292/jvms.70.501

Cited by 14 publications

(10 citation statements)

References 21 publications

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“…Hawaiian avian Plasmodium has been regarded as genetically one species from the result of the past introduction of both pathogen and vector. Murata et al (2008) reported that the infection of several protozoan species from the birds inhabiting this island [26]. Our present lineage detection of multiple avian Plasmodium from mosquitoes also supported it.…”

Section: Discussionsupporting

confidence: 83%

“…Murata et al (2008) reported Plasmodium infection of wild birds such as bullheaded shrike, tree sparrow and Borodino islands white-eye by light microscopy in Minami Daito Island, and predicted further detection of different avian malaria there [26]. More evidences such as these mosquitoes harbor infective sporozoites of Plasmodium are required to prove these mosquitoes being as vectors of avian malaria, however, it was considered that L. fuscanus and A. albopictus could play as vectors for avian malaria in the island.…”

Section: Discussionmentioning

confidence: 99%

“…As mentioned above, the native birds infected with avian malaria in Minami Daito Island of Japan have been reported with relatively high prevalence [26]. Furthermore, several mosquito species were identified in this isolated oceanic island [22], suggesting that they could be potential vectors of avian malaria there.…”

mentioning

confidence: 81%

“…More recently, Murata et al (2008) also showed that avian malaria distributed even in a particularly isolated environment of an oceanic island, Minami Daito Island, Japan [26]. This island remains isolated from the main islands of Japan and has some endemic bird species and/or subspecies such as Borodino bush warbler (Cettia diphone restrictus), Varied tit (Parus varius orii), Borodino islands white-eye (Zosterops japonicus daitoensis), Daito scops owl (Otus elegans interpositus), Borodino islands bulbul (Hypsipetes amaurotis borodinonis) and bull-headed shrike (Lanius bucephalus) [1].…”

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confidence: 99%

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Detection of Avian Plasmodium spp. DNA Sequences from Mosquitoes Captured in Minami Daito Island of Japan

Ejiri

Sato

Sasaki

et al. 2008

The Journal of Veterinary Medical Science

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ABSTRACT. Several species of birds in Minami Daito Island, an oceanic island located in the far south from the main islands of Japan, were found to be infected with avian Plasmodium. However, no vector species of the avian malaria in this island have been revealed yet. To speculate potential vectors, we collected mosquitoes there and investigated using a PCR procedure whether the mosquitoes harbor avian malaria or not. Totally 1,264 mosquitoes including 9 species were collected during March 2006 to February 2007. The mosquitoes collected were stored every species, sampled date and location for DNA extraction. Fifteen out of 399 DNA samples showed positive for the partial mtDNA cytb gene of avian Plasmodium. Estimated minimum infection rate among collected mosquitoes was 1.2% in this study. Four species of mosquitoes; Aedes albopictus, Culex quinquefasciatus, Lutzia fuscanus and Mansonia sp. had avian Plasmodium gene sequences. Detected DNA sequences from A. albopictus and L. fuscanus were identical to an avian Plasmodium lineage detected in bull-headed shrike (Lanius bucephalus) captured in the island. Different sequences were detected from C. quinquefasciatus, which were corresponding to an avian Plasmodium from a sparrow (Passer montanus) and Plasmodium gallinaceum. Our results suggest that A. albopictus, Lutzia fuscanus, C. quinquefasciatus, and Mansonia sp. could be potential vectors of avian malaria in Minami Daito Island. This study was the first report of molecular detection of avian Plasmodium from mosquitoes in Japan.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 81%

mentioning

confidence: 99%

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Detection of Avian Plasmodium spp. DNA Sequences from Mosquitoes Captured in Minami Daito Island of Japan

Ejiri

Sato

Sasaki

et al. 2008

The Journal of Veterinary Medical Science

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“…are blood protozoa that cause the vector-borne disease of bird malaria on a worldwide scale and are transmitted mainly by mosquitoes of the genera Aedes, Anopheles, Culex and Culiseta [20]. Previous studies in Japan reported that several species of wild and captive birds were infected with various strains of avian Plasmodium [10][11][12], and some mosquito species were reported as their vectors [2][3][4][5][6][7]. Elucidating the prevalence and transmission pathways of avian Plasmodium may provide important information for evaluating the risk of parasite infections in the study areas [3,4].…”

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confidence: 99%

First Record of Avian Plasmodium DNA from Mosquitoes Collected in the Yaeyama Archipelago, Southwestern Border of Japan

Ejiri

Sato

Kim

et al. 2011

The Journal of Veterinary Medical Science

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ABSTRACT. We studied the prevalence of avian Plasmodium in 509 mosquitoes of 9 species collected from the Ishigaki and Iriomote islands in the Yaeyama Archipelago, located southwest from the mainland of Japan. Two identical avian Plasmodium lineages were detected from Culex (Culiciomyia) nigropunctatus. Detected lineages were phylogenetically classified into different clade to avian Plasmodium lineages from birds and mosquitoes in the mainland of Japan but identical to a lineage detected from a resident bird, Whitebreasted Waterken (Amaurornis phoenicurus). This is the first detection of avian Plasmodium DNA from mosquitoes in the Yaeyama Archipelago and suggested that resident birds might have been infected with an avian Plasmodium lineage specific to the studied area and C. nigropunctatus could be the candidate vector mosquito species.

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Prevalence and Transmission Cycle of Avian Pathogens in the Isolated Oceanic Islands of Japan

Inumaru,

Kimura,

Suzuki

et al. 2024

Ecology and Evolution

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Avian haemosporidian parasites and avian pox virus (APV) are well‐known pathogens for their impact on avian populations, especially in oceanic islands where introduced pathogens show strong virulence for endemic and naïve birds. The Bonin Islands are a group of oceanic islands 1000 km south of Tokyo. Like the Hawaiian Islands, there are many endemic and endangered species as well as introduced species, which have greatly affected the native avian fauna. However, pathogens in wild birds of this archipelago had not been investigated. In this study, we investigated the prevalence of avian haemosporidian parasites and APV among birds and mosquitoes in this unique ecosystem of the Bonin Islands. From 2014 to 2020, 524 birds of 39 species either rescued, deceased, or caught by mist‐netting were sampled. APV‐like lesions were sampled from nine birds. 262 mosquitoes were collected by sweeping nets or CDC traps. All samples were tested via PCR for haemosporidian infection, and lesions were tested for APV.209 birds (39.9%) of 11 species were positive for haemosporidian parasite DNA, and all three parasite genera were detected. Prevalence was particularly high for Plasmodium elongatum (pGRW06) and Prelictum relictum (pGRW04). The former was detected from both resident birds and mosquitoes, suggesting local transmission. An introduced species, the warbling white‐eye (Zosterops japonicus), had a particularly high prevalence of pGRW06 (68.3%) and may be a reservoir of this lineage. Both APV and Plasmodium spp. were detected from all APV‐tested birds, suggesting that these two pathogens may be transmitted simultaneously via mosquitoes. The presence of avian haemosporidian parasites and APV was confirmed in the Bonin Islands for the first time. However, the virulence and origin of these pathogens remain unknown, and many bird species are still understudied. Further investigations are required to contribute to the conservation of this unique avifauna.

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Avian Haemosporidian Parasites Infection in Wild Birds Inhabiting Minami-Daito Island of the Northwest Pacific, Japan

Cited by 14 publications

References 21 publications

Detection of Avian Plasmodium spp. DNA Sequences from Mosquitoes Captured in Minami Daito Island of Japan

Detection of Avian Plasmodium spp. DNA Sequences from Mosquitoes Captured in Minami Daito Island of Japan

First Record of Avian Plasmodium DNA from Mosquitoes Collected in the Yaeyama Archipelago, Southwestern Border of Japan

Prevalence and Transmission Cycle of Avian Pathogens in the Isolated Oceanic Islands of Japan

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