Haemoproteus paraortalidum n. sp. in captive Black-fronted Piping-guans Aburria jacutinga (Galliformes, Cracidae): High prevalence in a population reintroduced into the wild

• Published in: Acta tropica Vol. 188; pp. 93 - 100
• Main Authors: Ferreira-Junior, Francisco C., de Angeli Dutra, Daniela, Martins, Nelson R.S., Valkiūnas, Gediminas, Braga, Érika M.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.12.2018
• Subjects: Animal reintroduction; Avian haemosporidians; Brazil; Molecular characterization; New species; Parasite description; Brazil; New species; Animal reintroduction; Molecular characterization; Avian haemosporidians; Parasite description
• ISSN: 0001-706X; 1873-6254
• DOI: 10.1016/j.actatropica.2018.08.035

[Display omitted] •A new avian parasite, Haemoproteus (Parahaemoproteus) paraortalidum is described.•The new species was characterized by molecular and morphological analyses.•This haemosporidian infects the endangered Aburria jacutinga born in capitivity.•Infected birds were reintroduced into the wild. Haemosporidian parasites of the genus Haemoproteus are widespread and can cause disease and even mortality in birds under natural and captive conditions. The Black-fronted Piping-guan (Aburria jacutinga) is an endangered Neotropical bird of the Cracidae (Galliformes) going through a reintroduction program to avoid extinction. We used microscopic examination and partial cytochrome b DNA sequencing to describe a new Haemoproteus species infecting Black-fronted Piping-guans bred and raised in captivity that were reintroduced into the Atlantic rainforest. Haemoproteus (Parahaemoproteus) paraortalidum n. sp. was detected in the blood of 19 out of 29 examined birds. The new species is distinguished from other haemoproteids due to the shape of gametocytes, which have pointed ends in young stages, and due to the presence of vacuole-like unstained spaces in macrogametocytes and numerous volutin granules both in macro- and microgametocytes. Illustrations of the new species are provided. Phylogenetic inference positioned this parasite in the Parahaemoproteus subgenus clade together with the other two Haemoproteus genetic lineages detected in cracids up to date. We discuss possible implications of the reintroduction of birds infected with haemosporidian parasites into the wild. Treatment of Haemoproteus infections remains insufficiently studied, but should be considered for infected birds before reintroduction to improve host reproductive and survival rates after release.