Prevalence of avian haematozoa in wild birds in a high-altitude forest in Japan

Imura, Takayuki; Suzuki, Yuka; Ejiri, Hiroko; Sato, Yukita; Ishida, Ken; Sumiyama, Daisuke; Murata, Koichi; Yukawa, Masayoshi

doi:10.1016/j.vetpar.2011.07.027

Cited by 41 publications

(39 citation statements)

References 19 publications

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“…This variation may be due to difference in the geographical location, climate conditions of the study area, age, sex, seasons, treatment of captive and exotic birds, method of study, sample size. From this study, prevalence of parasitic infection it was observed that the prevalence of parasitic infection was highest in chicks (50.0%) followed by young (43.8%) and adult (41.7%) which was higher than Imura et al (2012) who recorded 46% of parrot (23.0%) of dove, 36.0% of cockatoo, 26.0% of teeter were in young birds than adult. According to Gauly et al (2005) the prevalence of parasitic infection was 50.0% at six months of age to 69.0% at one year of age and older which is almost similar to our study.…”

Section: Resultsmentioning

confidence: 56%

Prevalence of Parasitic Infections of Game Birds in Dhaka City Corporation, Bangladesh

Hasan¹,

Mazumder²,

Hossan³

et al. 2018

Bangl. J. Vet. Med.

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Game birds are silent controller of maintaining ecological balance. To study the prevalence of intestinal parasites in game birds, a total of 60 birds (budgerigar, parrot, cockatoo, dove, turkey and teeter) were collected from several places of Dhaka Municipality area, during the period of June 2017 to November, 2017. Alongside the effects of age, sex, season and treatment on the prevalence of parasitic infection in game birds were studied. Coprologic analysis revealed that the overall prevalence of intestinal parasitic infection was 45%, of which 21.67% of Ascaridia galli, 10% for Balantidium coli and 13.33% for Eimeria spp. The prevalence of Ascaridia galli was 28.7%, t 22.22% and 16.6% in teeter, budgerigar and parrot respectively. Eimeria spp. (16.67%) in budgerigar. The prevalence of Ascaridia galli was highest (25%) followed by Eimeria spp (16.67%) in parrot. The prevalence of Ascaridia galli in cockatoo was 16.67%. In dove prevalence of Balantidium coli (44.44%) was highest followed by Ascaridia galli (22.22%). The prevalence of Eimeria spp. and Balantidium coli were highest (25%) followed by Ascaridia galli (12.50%) in turkey. The prevalence of Ascaridia galli was highest (28.57%) followed by Eimeria spp (14.23%) in teeter. Age of this game birds had significant (p> 0.05) influence on the infections and odds ratio of Chick (<6 month) vs young (>6 month to 1 year), young vs adult (>1 year) and chick vs adult were 1.28, 1.08 and 1.4 respectively. The sex of the game birds had significant (p>0.05) influence on the infections with intestinal parasites and odds ratio of male vs female was 0.81. Game birds had significant (p>0.05) on the infection in the seasons of the year and odds ratio of summer vs winter was 2.12. Game birds had significant (p>0.05) on the infection in the treatment given and the odds ratio of treated vs non-treated was 0.89. It may be concluded that game birds, irrespective of age, sex, season, treatment, intestinal parasites are the serious threat to game birds in Dhaka Municipality area, Bangladesh.

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Section: Resultsmentioning

confidence: 56%

Prevalence of Parasitic Infections of Game Birds in Dhaka City Corporation, Bangladesh

Hasan¹,

Mazumder²,

Hossan³

et al. 2018

Bangl. J. Vet. Med.

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“…With the exception of Leucocytozoon (Akiba) culleryi , which is transmitted by biting midges, all Leucocytozoon parasites are vectored by black flies (Diptera: Simuliidae) [1]. Imura et al [48] reported high prevalence of Leucocytozoon parasites in willow tits ( Parus montanus ) and coal tits ( Parus ater ) at high altitudes in Japan (64.3% and 81.8% respectively), linking infection to black fly bites. The high prevalence of Leucocytozoon parasites observed at high altitude in this study could be due to the capacity of these parasites to successfully complete sporogony at relatively low temperatures [1], potentially as an adaptation to developing in high latitudes of the Holarctic (see [49] as an example of L. simondi in emperor geese, Chen canagica , in Alaska).…”

Section: Discussionmentioning

confidence: 99%

Altitudinal variation in haemosporidian parasite distribution in great tit populations

et al. 2013

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BackgroundOne of the major issues concerning disease ecology and conservation is knowledge of the factors that influence the distribution of parasites and consequently disease outbreaks. This study aimed to investigate avian haemosporidian composition and the distribution of these parasites in three altitudinally separated great tit (Parus major) populations in western Switzerland over a three-year period. The objectives were to determine the lineage diversity of parasites occuring across the study populations and to investigate whether altitudinal gradients govern the distribution of haemosporidian parasites by lineage.MethodsIn this study molecular approaches (PCR and sequencing) were used to detect avian blood parasites (Plasmodium sp., Haemoproteus sp. and Leucocytozoon sp.) in populations of adult great tits caught on their nests during three consecutive breeding seasons.ResultsHigh levels of parasite prevalence (88-96%) were found across all of the study populations with no significant altitude effect. Altitude did, however, govern the distribution of parasites belonging to different genera, with Plasmodium parasites being more prevalent at lower altitudes, Leucocytozoon parasites more at high altitude and Haemoproteus parasite prevalence increasing with altitude. A total of 27 haemosporidian parasite lineages were recorded across all study sites, with diversity showing a positive correlation to altitude. Parasites belonging to lineage SGS1 (P. relictum) and PARUS4 and PARUS19 (Leucocytozoon sp.) dominated lower altitudes. SW2 (P. polare) was the second most prevalent lineage of parasite detected overall and these parasites were responsible for 68% of infections at intermediate altitude, but were only documented at this one study site.ConclusionsAvian haemosporidian parasites are not homogeneously distributed across host populations, but differ by altitude. This difference is most probably brought about by environmental factors influencing vector prevalence and distribution. The high occurrence of co-infection by different genera of parasites might have pronounced effects on host fitness and should consequently be investigated more rigorously.

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“…In the Chichibu mountains, blood parasite protozoa including Leucocytozoon spp. were found in 6/58 bush warblers (Imura et al 2012 ). We are processing the plasma samples of Bush warblers to examine their stress levels and behavior (Wingfi eld et al 1995 ).…”

Section: Effects Of Radioactivity On Bush Warbler and Boarmentioning

confidence: 99%

Contamination of Wild Animals: Effects on Wildlife in High Radioactivity Areas of the Agricultural and Forest Landscape

Ishida

2013

Agricultural Implications of the Fukushima Nuclear Accident

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This study presents new fi ndings related to radioactivity measurements in birds and other wild animals. High levels of radioactive contamination were found in the feathers of birds after the accident and most of this radioactivity was not washed out. However, there was little contamination in the new feathers produced by the same species after approximately 1 year. We discuss the possible effects of radioactivity, particularly cascade effects among wildlife in the Satoyama ecosystem. Satoyama consists of well-managed agricultural fi elds, grasslands, and several types of forests at a small-scale topography level. We describe our long-term monitoring approach.

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Prevalence of avian haematozoa in wild birds in a high-altitude forest in Japan

Cited by 41 publications

References 19 publications

Prevalence of Parasitic Infections of Game Birds in Dhaka City Corporation, Bangladesh

Prevalence of Parasitic Infections of Game Birds in Dhaka City Corporation, Bangladesh

Altitudinal variation in haemosporidian parasite distribution in great tit populations

Contamination of Wild Animals: Effects on Wildlife in High Radioactivity Areas of the Agricultural and Forest Landscape

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