Artificial burrows as a tool for long-term studies of diving petrels

• Published in: Polar Biology
• Main Authors: Fromant, Aymeric, Miskelly, C. M., Arnould, J., Bost, Charles-André
• Other Authors: Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), School of Life and Environmental Sciences, Faculty of Science and Technology, Deakin University Burwood, Museum of New Zealand Te Papa Tongarewa
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2020
• Subjects: Artificial burrow; Burrowing seabird; Diving petrel; Procellariiformes; Long-term study; [SDE]Environmental Sciences; Burrows; Indian; Kerguelen; Polar Biology
• Online Access: https://hal.archives-ouvertes.fr/hal-02545872; https://doi.org/10.1007/s00300-020-02645-y

International audience Long-term studies are essential to determine demographic parameters and population trends in seabirds. However, studies to date have focused mainly on the larger and accessible species. While small seabirds (< 200 g) play a major role in marine ecosystems, their nesting habitat, which is typically fragile convoluted burrows, largely preclude long-term surveys. This study evaluated the installation of artificial burrows as a tool to facilitate ongoing long-term research on small burrowing seabirds. We tested the use and acceptance of artificial burrows during the chick-rearing period of common diving petrels (Pelecanoides urinatrix) on Mayes Island, Kerguelen Archipelago, southern Indian Ocean. The growth rate, mass at fledging and fledging rate of chicks were similar between artificial and natural burrows. Similarly, there was no difference in occupancy rate 1 and 2 years after artificial burrows were installed. The installation of artificial burrows during the chick-rearing period of a small burrowing seabird appears to be an effective way to facilitate ongoing monitoring and research and, therefore, we recommend the wider use of artificial burrows to facilitate monitoring and research of other small burrow-nesting procellariiform species.