Attributes / relations provided by
♦ ¹Trophic structure and flows of energy in the Huizache–Caimanero lagoon complex on the Pacific coast of Mexico; Manuel J. Zetina-Rejón, Francisco Arreguı́n-Sánchez, Ernesto A. Chávez; Estuarine, Coastal and Shelf Science 57 (2003) 803–815
♦ ²Diving behavior of blue-footed boobies Sula nebouxii in northern Peru in relation to sex, body size and prey type, Carlos B. Zavalaga, Silvano Benvenuti, Luigi Dall’Antonia, Steven D. Emslie, MARINE ECOLOGY PROGRESS SERIES 336: 291–303, 2007