Breeding confirmation and habitat utilization of Sooty Shearwater (Ardenna grisea) on Isla de los Estados, Argentina

Author:

Rey Andrea Raya1,Balza Ulises1,Domato Ignacio2,Salom Amira1,Pütz Klemens3

Affiliation:

1. Centro Austral de Investigaciones Científicas (CADIC-CONICET)

2. logistic ex

3. Antarctic Research Trust

Abstract

Abstract The Sooty Shearwater (Ardenna grisea) is a species facing global decline, nesting on southern hemisphere islands, and migrating to the northern hemisphere during the non-breeding season. This study confirms the species ́ breeding presence on Isla de los Estados in the Fuegian archipelago, Argentina. Additionally, we present a preliminary evaluation of its habitat utilization. Active burrows were found along the northern coast of the island on slopes with dense, stumpy subantarctic forests and beneath or alongside rocky outcrops overlooking the coast. These discoveries provide valuable insights into the population status of the species, offering critical insights that can significantly inform and enhance conservation efforts.

Publisher

Research Square Platform LLC

Reference33 articles.

1. BirdLife I (2024) Species factsheet: Ardenna grisea. Downloaded from http://datazone.birdlife.org/species/factsheet/sooty-shearwater-ardenna-grisea on 13/01/2024

2. Habitat preferences, foraging behaviour and bycatch risk among breeding sooty shearwaters Ardenna grisea in the Southwest Atlantic;Bonnet-Lebrun AS;Mar Ecol Prog Ser,2020

3. Brooke de LM (2004) The food consumption of the world's seabirds. Proceedings of the Royal Society of London. Series B: Biological Sciences, 271(suppl_4), S246-S248

4. Carboneras C, Jutglar F, Kirwan GM (2020) Sooty Shearwater (Ardenna grisea), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.sooshe.01

5. Spatial variation in burrow entrance density of the sooty shearwater (Puffinus griseus);Charleton K;Notornis,2009

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