Banca de DEFESA: TALYS HENRIQUE ASSUMPÇÃO JARDIM

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : TALYS HENRIQUE ASSUMPÇÃO JARDIM
DATE: 28/12/2022
TIME: 09:00
LOCAL: Plataforma Google Meet
TITLE:

New parasite species of Plasmodium and Haemoproteus genus in wild birds from in montane environments of the Atlantic Forest of southeastern Brazil.

KEY WORDS:

Haemosporida; endemism; morphometry; cyt-b; wild birds.

PAGES: 102
BIG AREA: Ciências Biológicas
AREA: Parasitologia
SUBÁREA: Protozoologia de Parasitos
SPECIALTY: Protozoologia Parasitária Animal
SUMMARY:

The Atlantic Forest is one of the great “hotspots” of biodiversity and species endemism in the world. One of the factors responsible for generating so much diversity is the relief. The mountains offer distinct environmental conditions in relation to the surrounding areas, in addition to strong geographic isolation, resulting in high rates of endemism. Studies on biodiversity in mountains of the Atlantic Forest have already revealed the presence of several species, but the diversity of avian hemosporidia in these places is still unknown. Thus, the objective of the present study was to investigate the diversity of avian hemosporidia in montane environments of the Atlantic Forest using morphological, molecular, and phylogenetic techniques. 621 birds were sampled at altitudes from 700 to 2500 meters above sea level. In the analysis of blood smears, the prevalence of parasites of the genus Plasmodium recorded was 4.25% (26/521) and Haemoproteus, 4.35% (27/621). In a bird of the species Rhopias gularis sampled in the Itatiaia National Park, it was possible to characterize and describe a new species of avian malaria parasite, Plasmodium (Novyella) erikdaemoni. In Columbiform hosts of the species Geotrygon montana in the Serra dos Órgãos National Park, Haemoproteus (Haemoproteus) massardi was described. The morphological characteristics of the new species were consistent and unprecedented, as well as the genetic characteristics of the parasites recovered through phylogenetic analyses. Through the results obtained, we enriched our knowledge about the global diversity of hemosporidia and the species of the Atlantic Forest, a highly threatened biome that has the potential to harbor many species of avian malaria parasites not yet known to science, given its great biodiversity and the little sampling already carried out. The data presented here suggest a considerable effect of relief on the diversity and endemism of parasites of the genera Plasmodium and Haemoproteus in the Atlantic Forest, since the new species described occur in mountainous environments of this biome.

COMMITTEE MEMBERS:
Presidente - 3701492 - HUARRISSON AZEVEDO SANTOS
Interna - 3103528 - CLAUDIA BEZERRA DA SILVA
Interna - 3103478 - MARISTELA PECKLE PEIXOTO
Externa ao Programa - 3299153 - PATRICIA GONZAGA PAULINO - UFRRJExterno à Instituição - FRANCIANE CEDROLA VALE - UNICAMP
Externo à Instituição - GLAUBER THIAGO MARTINS BARINO
Externa à Instituição - MARTA TAVARES D'AGOSTO - UFJF