Blood parasite prevalence and abundance in the bird communities of several forested locations in Southeast Asia

Paperna, I.; Soh, Malcolm C. K.; Yap, Charlotte A.‐M.; Sodhi, Navjot S.; Lim, Susan L.‐H.; Prawiradilaga, Dewi M.; Nagata, Hisashi

doi:10.2326/osj.4.129

Cited by 7 publications

(10 citation statements)

References 5 publications

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“…McClure et al (1978) performed surveys on avian blood parasites at various sites in Southeast Asia in [1963][1964][1965][1966][1967][1968][1969][1970][1971]. A comprehensive check-list, prevalence and distribution data of avian hematozoa in Malaysia and Indonesia were presented by Paperna et al (2005), and descriptions of the species were published by Paperna et al (2008). All these early studies have been based on morphological identification of species, often at the generic level only, which is no longer sufficient in the light of recent progress in the field (Bensch et al, , 2009Pérez-Tris and Bensch, 2005;Dimitrov et al, 2014;Valki unas et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of avian haemosporidians in Malaysia: Cytochrome b lineages of the genera Plasmodium and Haemoproteus (Haemosporida) from Selangor

Ivanova

Zehtindjiev

Mariaux

et al. 2015

Infection, Genetics and Evolution

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Section: Introductionmentioning

confidence: 99%

Genetic diversity of avian haemosporidians in Malaysia: Cytochrome b lineages of the genera Plasmodium and Haemoproteus (Haemosporida) from Selangor

Ivanova

Zehtindjiev

Mariaux

et al. 2015

Infection, Genetics and Evolution

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“…We also found evidence in these environments that terrestrial bird species are more susceptible than aquatic species, and that larger bodied species have higher prevalence than smaller bodied species. The prevalence of filarioids in birds from Malaysia and Western Africa is higher in lowland moist forests than other environments (Paperna et al 2005;Sehgal et al 2005). These studies point to a clear altitudinal relationship for filarioid prevalence with birds from highland forests (e.g.…”

Section: Discussionmentioning

confidence: 62%

“…montane forests) of both regions having the lowest prevalences (Paperna et al . 2005; Sehgal et al . 2005).…”

Section: Discussionmentioning

confidence: 99%

Bird habitat preferences drive hemoparasite infection in the Neotropical region

Torre

Campião

2021

Integr. Zool.

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The role that the environment plays in vector‐borne parasite infection is one of the central factors for understanding disease dynamics. We assessed how Neotropical bird foraging strata and habitat preferences determine infection by parasites of the genera Haemoproteus, Plasmodium, Leucocytozoon, and Trypanosoma and filarioids, and tested for phylogenetic signal in these host–parasite associations. We performed extensive searches of the scientific literature and created a database of hemoparasite surveys. We collected data on host body mass, foraging strata, habitat preference, and migratory status, and tested if host ecological traits predict each hemoparasite occurrence and prevalence using a phylogenetic Bayesian framework. Species of Plasmodium tend to infect birds from tropical forests while birds from altitudinal environments are likely to be infected by species of Leucocytozoon. The probability of a bird being infected by filarioid or Trypanosoma is higher in lowland forests. Bird species that occur in anthropic environments and dry habitats of tropical latitudes are more susceptible to infection by species of Haemoproteus. Host foraging strata is also influential and bird species that forage in the mid‐high and canopy strata are more prone to infection by species of Haemoproteus and filarioids. We also identified phylogenetic signal for host–parasite associations with the probability of infection of Neotropical birds by any hemoparasite being more similar among more closely related species. We provided a useful framework to identify environments that correlate with hemoparasite infection, which is also helpful for detecting areas with potential suitability for hemoparasite infection due to land conversion and climate change.

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“…From our findings, it is possible that the intensive infection could be consistent with free-range farm system showing the higher statistically significant infection than other systems. Likewise, the climate condition, such as rainfall, are often involved with the occurrence of L. sabrazesi infection due to the longer survival of the parasite vectors (black flies and biting midges) 27 . Moreover, western and southern regions of Thailand have a long rainy season (about 3–4 months); this tropical area is a significant influence on the risk of L. sabrazesi infection and also seems to be a predisposing factor for the development of the parasite vectors which can survive in humid environment 9 , 26 , 28 – 30 .…”

Section: Discussionmentioning

confidence: 99%

Molecular detection and genetic diversity of Leucocytozoon sabrazesi in chickens in Thailand

Chawengkirttikul

Junsiri

Watthanadirek

et al. 2021

Sci Rep

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Leucocytozoon sabrazesi is the intracellular protozoa of leucocytozoonosis, which is transmitted by the insect vectors and affects chickens in most subtropical and tropical regions of the globe, except South America, and causing enormous economic losses due to decreasing meat yield and egg production. In this study, L. sabrazesi gametocytes have been observed in the blood smears, and molecular methods have been used to analyse the occurrence and genetic diversity of L. sabrazesi in blood samples from 313 chickens raised in northern, western and southern parts of Thailand. The nested polymerase chain reaction (nested PCR) assay based on the cytb gene revealed that 80.51% (252/313) chickens were positive of L. sabrazesi. The phylogenetic analysis indicated that L. sabrazesi cytb gene is conserved in Thailand, showed 2 clades and 2 subclades with similarity ranged from 89.5 to 100%. The diversity analysis showed 13 and 18 haplotypes of the sequences from Thailand and from other countries, respectively. The entropy analyses of nucleic acid sequences showed 26 high entropy peaks with values ranging from 0.24493 to 1.21056, while those of amino acid sequences exhibited 5 high entropy peaks with values ranging from 0.39267 to 0.97012. The results; therefore, indicate a high molecular occurrence of L. sabrazesi in chicken blood samples with the associated factors that is statistically significant (p < 0.05). Hence, our results could be used to improve the immunodiagnostic methods and to find appropriate preventive control strategies or vaccination programs against leucocytozoonosis in order to mitigate or eliminate the harmful impact of this infection on chicken industry.

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Blood parasite prevalence and abundance in the bird communities of several forested locations in Southeast Asia

Cited by 7 publications

References 5 publications

Genetic diversity of avian haemosporidians in Malaysia: Cytochrome b lineages of the genera Plasmodium and Haemoproteus (Haemosporida) from Selangor

Genetic diversity of avian haemosporidians in Malaysia: Cytochrome b lineages of the genera Plasmodium and Haemoproteus (Haemosporida) from Selangor

Bird habitat preferences drive hemoparasite infection in the Neotropical region

Molecular detection and genetic diversity of Leucocytozoon sabrazesi in chickens in Thailand

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