Notice for readers: On March 31, Neotropical Birds will be integrated into the new Birds of the World, a powerful research database offering species accounts for every species on earth. Learn more at birdsoftheworld.org. While Birds of the World is a subscription service, we remain committed to offering this content to Neotropical Birds contributors and to those unable to pay for it through our scholarship program. Stay tuned.

Nazca Booby Sula granti

Sections

Systematics

Geographic Variation

Information needed. Contribute

Related Species

The Nazca booby is one of the six species in the genus Sula. Phylogenetic analyses places Sula dactylatra (Masked booby) as the sister group of Sula granti and have calculated an estimated divergence of ~500.000 years (Patterson et al., 2011; Friesen et al., 2002). It was initially considered as a subspecies of S. dactylatra (localized at the Nazca Plate), but phylogenetic and population genetic studies using haplotypes of cytochrome-b showed strong geographic structuring and a considerable percentage of sequence divergence (approximately 2.8% my-1) between Masked boobies and Nazca bobbies, apparently without physical barriers to gene flow, suggesting they are different species (Friesen et al., 2002).

Recommended Citation

Nazca Booby (Sula granti), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/nazboo1