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Documents disponibles écrits par cet auteur (7)
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Article
Andrea Isabel Varela, Auteur ; Nicolas Luna, Auteur ; Guillermo Luna-Jorquera, AuteurThe invasive Argentine Ant, Linepithema humile, is known to prey on land bird chicks, but there are few reports of the ants’ impacts on breeding seabirds. We conducted a manipulative study using hen eggs to estimate the potential Argentine Ant r[...]
Article
Pablo Yorio, Auteur ; Joaquim Olinto Branco, Auteur ; Javier Lenzi, Auteur ; Guillermo Luna-Jorquera, Auteur ; Carlos Zavalaga, AuteurIn South America, Kelp Gulls (Larus dominicanus) breed from Chilean Tierra del Fuego north to Rio de Janeiro, Brazil, on the Atlantic coast and to Piura, Peru, on the Pacific coast. This review presents the first synthesis of information on the [...]
Article
Roberto Aguilar, Auteur ; Alejandro Simeone, Auteur ; Juergen Rottmann, Auteur ; Marietta Perucci, Auteur ; Guillermo Luna-Jorquera, AuteurThe Gray Gull (Leucophaeus modestus) has the unique habit among gulls of nesting in the interior Atacama Desert, up to 100 km from the coast. During the 2014-2015 austral breeding season, two breeding colonies were recorded on the coast within 9[...]
Article
Katrin Ludynia, Auteur ; Stefan Garthe, Auteur ; Guillermo Luna-Jorquera, AuteurThe Peruvian Booby (Sula variegata) is one of the most numerous guano bird species in the Humboldt Current. We used a combination of data logger deployment, at-sea observations and colony-based work to investigate the foraging and diving behavio[...]
Article
Alejandro Simeone, Auteur ; Guillermo Luna-Jorquera, AuteurRats (Rattus spp.) are among the most successful alien predators brought to islands by humans and have had devastating impacts on numerous seabird populations, but studies demonstrating rates of consumption and ecological impacts on penguins are[...]
Article
Scott A. Taylor, Auteur ; Carlos B. Zavalaga, Auteur ; Guillermo Luna-Jorquera, Auteur ; Alejandro Simeone, Auteur ; David J. Anderson, Auteur ; Vicki L. Friesen, AuteurMarine ecosystems and their inhabitants are increasingly under threat from climate change, competition with humans for resources, and pollution. Species that are endemic to particular currents or regions of the world's oceans have the potential [...]
Article
Ursula Ellenberg, Auteur ; Thomas Mattern, Auteur ; Philip J. Seddon, Auteur ; Guillermo Luna-Jorquera, AuteurOver the last decade the Humboldt penguin, Spheniscus humboldti, has become a focus for ecotourism. Current management applies visitor guidelines similar to those developed for Magellanic penguins, Spheniscus magellanicus. However, unlike these,[...]
