A HYBRID SWARM OF DINOPIUM WOODPECKERS IN SRI LANKA

作者:Freed Leonard A*; Warakagoda Deepal; Cann Rebecca L; Sirivardana Udaya; Hettige Uditha
来源:The Wilson Journal of Ornithology, 2015, 127(1): 13-20.
DOI:10.1676/14-065.1

摘要

When two species or subspecies hybridize, the parental taxa may become more similar or follow new directions as alleles from one enter the novel genetic and ecological environment of the other. Here, we document hybridization between two Dinopium woodpeckers in Sri Lanka: two subspecies of Black-rumped Flameback woodpeckers (Dinopium benghalense jaffnense and D. b psarodes, recently considered as a full species Lesser Sri Lanka Flameback Dinopium psarodes). Hybridization has been suspected for 130 years. We describe eight different forms of hybrids, only two of which were known historically, and pairing patterns that indicate hybridization. The species and subspecies along with numerous hybrids have now become a hybrid swarm in northern Sri Lanka. Received 2 May 2014. Accepted 30 December 2014.

  • 出版日期2015-3