Table 1.
Morphometric measurements of male and female Peruvian boobies.
Table 2.
Foraging trip metrics for male and female Peruvian boobies.
Fig 1.
Kernel densities of Peruvian boobies.
Kernel utilization distributions (UDs) showing intensive foraging areas of female (red) and male (blue) Peruvian boobies GPS tracked on Isla Guañape Norte, Peru in two years, 2016 and 2019. 95% kernels are outlined with a dotted line and core 50% kernels are shaded solid. Map tiles by Stamen Design under a Creative Commons Attribution (CC BY 4.0) license. Data by OpenStreetMap licensed under the Open Data Commons Open Database License (ODbL).
Fig 2.
Prey item measurements of regurgitates of Peruvian boobies.
Total regurgitate mass (g), number of prey items, and average total length (cm) of anchoveta in regurgitates sampled from male and female Peruvian boobies on Isla Guañape Norte, Peru in 2019.
Table 3.
Bivariate isotopic niche positions of male and female Peruvian boobies.
Fig 3.
Isotopic niches (δ13C and δ15N) of male and female Peruvian boobies.
(Top right, bottom left) Isotopic niche space and distribution of carbon and nitrogen isotope values and (top left, bottom right) SEAb probability distributions and overlap probability of male and female Peruvian boobies on Isla Guañape Norte in 2016 and 2019.