| Journal: | The biologist |
| Database: | PERIÓDICA |
| System number: | 000373134 |
| ISSN: | 1994-9073 |
| Authors: | Figueroa, J1 |
| Institutions: | 1Asociación para la Investigación y Conservación de la Biodiversidad, Lima. Perú |
| Year: | 2010 |
| Season: | Oct-Dic |
| Volumen: | 57 |
| Number: | 4 |
| Pages: | 189-211 |
| Country: | Perú |
| Language: | Español |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | Between November and December 2004, an evaluation was done of some aspects of breeding biology of the kelp gull Larus dominicanus (Lichtenstein, 1823) in Lobos de Afuera, Lobos de Tierra and Foca islands, located off northern Peru. An association was found between the colonies of this species with the South American sea lion Otariaflavescens (Shaw, 1800) in Lobos de Afuera and Foca, with the blue-footed booby Sula nebouxii (Milne-Edwards, 1882) in Lobos de Afuera and Lobos de Tierra, the peruvian pelican Pelecanus thagus (Molina, 1782) in Lobos de Afuera, and with the Humboldt penguin Spheniscus humboldti (Meyen, 1834) in Foca. Egg predation and kleptoparasitism of S. nebouxii was common for this species in the three islands. Regarding the selection of nesting areas, it was noted that the Kelp Gull used different types of substrates such as rock, gravel, flagstone, boulders and seashells and that the nests were built using the resources of the site, mainly seaweeds and feathers and, in the Foca case, using leaves from sapote Capparis scabrida (Kunth, 1821). The nests were located in high and windy areas of the islands next to cracks and large rocks, from slopes of less than 15º to cliffs. Apparently, the timing of nest initiation was the same in the three islands, starting around the third week of October; in most cases were found three eggs in the nests. Factors are discussed that could affect the biological characteristics of the Kelp Gull in northern Peru and its differences with other breeding areas |
| Disciplines: | Biología |
| Keyword: | Aves, Etología, Reproducción y desarrollo, Gaviota dominicana, Larus dominicanus, Nidificación, Islas, Perú |
| Keyword: | Biology, Birds, Ethology, Reproduction and development, Islands, Kelp gull, Larus dominicanus, Nesting, Peru |
| Full text: | Texto completo (Ver PDF) |
