Genetic relatedness in Monk Parakeet breeding trios

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• 作者：Enrique H. Bucher ; Juan J. Martínez ; M. C. de Aranzamendi
• 关键词：Argentina ; Communal breeding ; Helpers at the nest ; Inbreeding ; Invasive species ; Extra pair paternity
• 刊名：Journal of Ornithology
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：157
• 期：4
• 页码：1119-1122
• 全文大小：627 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Zoology
  Animal Ecology
  Evolutionary Biology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：2193-7206
• 卷排序：157

文摘

Monk Parakeets (Myiopsitta monachus) are cooperative breeders, which means that one adult helps the breeding pair (trios). We found a breeding trio composed of two males and one female in a single breeding chamber of a two-chamber compound nest. Males were full siblings. The female was the half sibling of both males. The female and one male were genetic parents of all nestlings. The sampled parakeet population showed a higher than expected level of inbreeding. The Monk Parakeet provides an interesting model for understanding of the role and benefits of helping and extra parental behavior in cooperative breeding birds.