Low occurrence of hemosporidian parasites in the Neotropic cormorant (Phalacrocorax brasilianus) in Chile

Rodrigues, Pedro; Navarrete, Claudio; Elena, Campos; Verdugo, Claudio

doi:10.1007/s00436-018-6146-6

Cited by 7 publications

(5 citation statements)

References 80 publications

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“…Sex and age did not explain variation in the probability of infection of each parasite genus. These findings are similar to many previous studies reporting that sex is not a significant factor to explain blood parasite infection ( Ágh et al, 2019 ; Granthon and Williams, 2017 ; Halvarsson, 2016 ; Pedro et al, 2019 ; Podmokła et al, 2014 ), but see ( Baillie et al, 2012 ; Jones, 2019 ). There were no age-related differences observed in this study, in accordance with some previous studies ( Granthon and Williams, 2017 ; Pedro et al, 2019 ).…”

Section: Discussionsupporting

confidence: 91%

“…These findings are similar to many previous studies reporting that sex is not a significant factor to explain blood parasite infection ( Ágh et al, 2019 ; Granthon and Williams, 2017 ; Halvarsson, 2016 ; Pedro et al, 2019 ; Podmokła et al, 2014 ), but see ( Baillie et al, 2012 ; Jones, 2019 ). There were no age-related differences observed in this study, in accordance with some previous studies ( Granthon and Williams, 2017 ; Pedro et al, 2019 ). However, other studies have revealed higher prevalence in adults, probably due to accumulation of infection in adults and higher mortality in younger birds ( Mendes et al, 2005 ; Podmokła et al, 2014 ; Sol et al, 2000 , 2003 ).…”

Section: Discussionsupporting

confidence: 91%

“…The main wintering range lies in Southeast Asia ( Leader and Carey, 2003 ; Morozov, 2004 ), although small populations have also been periodically recorded in northern Australia and other parts of Melanesia ( Frith et al, 1977 ; Hayman et al, 1986 ). Differences in parasite prevalence have been detected in populations or species that have different migratory routes ( Pedro et al, 2019 ; Valkiūnas and Iezhova, 2001 ). Additionally, the timing of migration also differs between snipe species.…”

Section: Discussionmentioning

confidence: 99%

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First records of prevalence and diversity of avian haemosporidia in snipe species (genus Gallinago) of Japan

Inumaru

Odaya

Sato

et al. 2021

International Journal for Parasitology: Parasites and Wildlife

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Migratory birds are important carriers of pathogens such as viruses, bacteria and protozoa. Avian haemosporidia have been detected from many wild birds of Japan, but the infection status of migratory birds and transmission area are still largely unknown. Gallinago snipes are long-distance migratory shorebirds, and five species migrate to or through Japan, including Latham's snipe which is near threatened. Haemosporidian parasites in four snipe species were investigated to understand the role of migratory birds in the transmission of avian haemosporidia. Namely, this study aimed: i) to investigate differences in parasite prevalence and related factors explaining infection likelihood among these migratory species, ii) to explore the diversity in haemosporidian lineages and possible transmission areas, and iii) to assess the possibility of morphological effects of infection. Blood samples were collected from snipes caught in central and southwest Japan during migration. Parasites cyt b gene DNA were detected via PCR-based testing, and detected lineages were phylogenetically analyzed. Additionally, factors related to prevalence and morphological effects of infection were statistically tested. 383 birds from four Gallinago snipe species were caught, showing higher overall prevalence of avian haemosporidia (17.8 %) than reported in other wader species in previous studies. This high infection rate is presumably due to increased contact with vector insects, resultant of environmental preferences. The prevalence of Plasmodium spp. Was higher in Swinhoe's snipes, while Haemoproteus spp. Was higher in Latham's snipes. These differences are thought to be related to ecological factors including habitat use, distribution and migratory route. Six lineages detected from juveniles indicate transmission between the breeding and sampling area. Contrary to expectations, a direct link between morphological features and haemosporidian parasite infection were not detected. These findings provide valuable information for conservation of this endangered migratory bird group. Further studies linking biological and parasitological research are anticipated to contribute to conservational actions.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

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First records of prevalence and diversity of avian haemosporidia in snipe species (genus Gallinago) of Japan

Inumaru

Odaya

Sato

et al. 2021

International Journal for Parasitology: Parasites and Wildlife

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“…Aquatic birds living in saline environments on sea islands typically have low blood parasite prevalence or lack blood parasites altogether (Figuerola, 1999). A recent study showed that Neotropic cormorant individuals ( Phalacrocorax brasilianus ) harboured a low occurrence of Plasmodium and Leucocytozoon parasites (Pedro et al, 2019). Therefore, it remains unclear whether C. caucoliberensis is a potential vector of haemosporidian parasites, despite its clear preference for birds.…”

Section: Resultsmentioning

confidence: 99%

First report of Culicoides caucoliberensis in Spain: Exploring molecular phylogeny, host‐feeding behaviour and avian haemosporidian parasites

González

Bravo‐Barriga

López‐Mercadal

et al. 2023

Medical Vet Entomology

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Culicoides biting midges (Diptera: Ceratopogonidae) are vectors of pathogens that affect wildlife and livestock. Understanding the composition and distribution of vector species is crucial for implementing control strategies and preventing the spread of infectious diseases. This study provides a morphological and molecular characterisation of Culicoides caucoliberensis, which represents the first record for Spain, increasing the number of Culicoides species in the country to 85. A total of 213 specimens were collected using Onderstepoort‐ultraviolet down‐draught light traps on a rocky coastline in the Balearic Islands during two sampling periods in 2022. Phylogenetic analysis showed that C. caucoliberensis forms a monophyletic cluster within the Maritimus group. Host preferences were determined for the first time and showed propensity to feed on the European shag (Phalacrocorax aristotelis). The vector role of C. caucoliberensis for haemosporidian transmission remains unclear since molecular detection of Haemosporidians (Haemoproteus and Plasmodium) was negative for all the pools of parous and engorged females analysed. This study emphasises the importance of conducting entomofauna studies in lesser‐known Mediterranean islet landscapes and highlights the need for research on vectors within the One Health framework.

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“…Lineage pZEMAC01 was detected in Aquila chrysaetos (2) kept in the Southwest Zoo in Arizona, USA [100]. It was also found in the mourning dove Zenaida macroura (3) [72,101] and the great roadrunner Geococcyx californianus (2) [100] in the USA, the Neotropic cormorant Phalacrocorax brasilianus (4) in Chile [102], and passeriform birds in Argentina (1) [62], Mexico (1) [103], the USA (1) [104], and Australia (1) [105]. The lineage differs by nine bp from P. matutinum pLINN1, which was also found in one individual of Accipiter gentilis in Austria.…”

Section: Other Plasmodium Lineages In Accipitriform Raptorsmentioning

confidence: 99%

Avian haemosporidian parasites of accipitriform raptors

Harl

Himmel

Valkiūnas

et al. 2022

Malar J

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Background The order Accipitriformes comprises the largest group of birds of prey with 260 species in four families. So far, 21 haemosporidian parasite species have been described from or reported to occur in accipitriform birds. Only five of these parasite species have been characterized molecular genetically. The first part of this study involved molecular genetic screening of accipitriform raptors from Austria and Bosnia-Herzegovina and the first chromogenic in situ hybridization approach targeting parasites in this host group. The aim of the second part of this study was to summarize the CytB sequence data of haemosporidian parasites from accipitriform raptors and to visualize the geographic and host distribution of the lineages. Methods Blood and tissue samples of 183 accipitriform raptors from Austria and Bosnia-Herzegovina were screened for Plasmodium, Haemoproteus and Leucocytozoon parasites by nested PCR, and tissue samples of 23 PCR-positive birds were subjected to chromogenic in situ hybridization using genus-specific probes targeting the parasites’ 18S rRNAs. All published CytB sequence data from accipitriform raptors were analysed, phylogenetic trees were calculated, and DNA haplotype network analyses were performed with sequences from clades featuring multiple lineages detected in this host group. Results Of the 183 raptors from Austria and Bosnia-Herzegovina screened by PCR and sequencing, 80 individuals (44%) were infected with haemosporidian parasites. Among the 39 CytB lineages detected, 18 were found for the first time in the present study. The chromogenic in situ hybridization revealed exo-erythrocytic tissue stages of Leucocytozoon parasites belonging to the Leucocytozoon toddi species group in the kidneys of 14 infected birds. The total number of CytB lineages recorded in accipitriform birds worldwide was 57 for Leucocytozoon, 25 for Plasmodium, and 21 for Haemoproteus. Conclusion The analysis of the DNA haplotype networks allowed identifying numerous distinct groups of lineages, which have not yet been linked to morphospecies, and many of them likely belong to yet undescribed parasite species. Tissue stages of Leucocytozoon parasites developing in accipitriform raptors were discovered and described. The majority of Leucocytozoon and Haemoproteus lineages are specific to this host group, but most Plasmodium lineages were found in birds of other orders. This might indicate local transmission from birds kept at the same facilities (raptor rescue centres and zoos), likely resulting in abortive infections. To clarify the taxonomic and systematic problems, combined morphological and molecular genetic analyses on a wider range of accipitriform host species are needed.

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Low occurrence of hemosporidian parasites in the Neotropic cormorant (Phalacrocorax brasilianus) in Chile

Cited by 7 publications

References 80 publications

First records of prevalence and diversity of avian haemosporidia in snipe species (genus Gallinago) of Japan

First records of prevalence and diversity of avian haemosporidia in snipe species (genus Gallinago) of Japan

First report of Culicoides caucoliberensis in Spain: Exploring molecular phylogeny, host‐feeding behaviour and avian haemosporidian parasites

Avian haemosporidian parasites of accipitriform raptors

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