Monitoring nests of Brazilian Mergansers in Serra da Canastra PDF Imprimir E-mail


Conhecer mais sobre aspectos da biologia e do comportamento do pato-mergulhão. Estes são alguns dos objetivos da nova campanha de captura e marcação da espécie realizada entre os dias 7 e 10 de outubro na região da Serra da Canastra pelos pesquisadores do Instituto Terra Brasilis.
Durante a campanha, foram capturados e anilhados dez indivíduos, dos quais dois foram marcados com rádios transmissores para posteriormente serem monitorados. Além disso, foram coletadas amostras de sangue para análise genética e realizados os procedimentos padrão, como pesagem, sexagem e avaliação das condições dos indivíduos.
“A campanha de captura e marcação é realizada anualmente, desde 2008, pelo Terra Brasilis, o que tem possibilitado o acúmulo de dados sobre a biologia do pato-mergulhão, contribuindo também com os estudos de genética que são essenciais para traçar estratégias para a conservação da espécie”, explica Lívia Lins, coordenadora do Programa Pato-mergulhão.

In the reproductive season of 2015, the Terra Brasilis Institute accompanied the birth of 11 ducklings

Researchers of the Terra Brasilis Institute monitored and accompanied the birth of 11 Brazilian Merganser ducklings. As a part of the biological studies of the species, during the entire reproductive period, which extends between the months of May through to September, the biologists monitor the region's nests. 

Overall, the researchers’ team monitored three nests in activity: one since the egg-laying phase and the other two during the incubation. One of the nests was built in an unstable location on a ravine, which ended up collapsing, resulting in a loss of all the eggs. 

In this reproductive season, the biologists measured and weighed the eggs in the nests and for the first time monitored the air humidity and temperature throughout the incubation of the eggs. "The unprecedented data collected during this monitoring, besides contributing to the increase of biological knowledge of the species, will subsidize the actions for the captivity program of the Brazilian Merganser", explains Flávia Ribeiro, biologist of the Pato Aqui, Água Acolá project.

 mosaico ninho

 

      


INSTITUTO TERRA BRASILIS
Rua Bueno Brandão, 405 - Bairro Santa Tereza - 31010-060
Belo Horizonte - MG TELEFAX: (55 31) 3225-0414 - contato@terrabrasilis.org.br

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