Keywords
Tyto alba
Exotic rodents
Clarillo River
Curacaví
How to Cite
Abstract
In order to compare a protected wilderness area with a disturbed suburban sector in terms of its diversity of small mammals, owl pellets of white owl (Tyto alba) were collected from the La Aurora sector of Curacaví, which is identified as a suburban area with a certain degree of of disturbance; and others obtained from the Río Clarillo National Park. Dietary items of T. alba were identified, focusing on small mammals. A higher percentage of exotic rodents is obtained in the Río Clarillo National Park than in the Curacaví sector. A calculation of the Simpson diversity index is made, where a slightly higher value is obtained in the Curacaví area compared to the Río Clarillo National Park. It is inferred that the protected wilderness area under study is serving as a favorable habitat for exotic rodents. In addition, it is inferred that the hypothesis of intermediate disturbances could be influencing the results in the Simpson index for the Curacaví area.
References
Del Hoyo J, Elliott A, Sargatal J. 1999. Handbook of the birds of the world. Barn owls to hummingbirds. Lynx Edicions, Barcelona, España.
Díaz I, Sarmiento C, Ulloa L, Moreira R, Navia R, Véliz E, Peña C. 2002. Vertebrados terrestres de la Reserva Nacional Río Clarillo, Chile central: representatividad y conservación. Revista Chilena de Historia Natural 75: 433-448. https://doi.org/10.4067/S0716-078X2002000200013
Di Castri F. 1973. Climatographical comparison between Chile and the western coast of North America. In Mediterranean-type ecosystems: origins and structure. Springer-Verlag, Berlín, Germany. https://doi.org/10.1007/978-3-642-65520-3_3
González D, Ausset M, Skewes O, Figueroa R. 2004. Variación estacional en el consumo de roedores por la lechuza de campanario (Tyto alba) en un área suburbana de Chillán, Centro-sur de Chile. Hornero 19: 61-68
Jaksic F, Yáñez J. 1979. The diet of the barn owl in Central Chile and it´s relation to the availability of prey. The Auk 96: 619-621. https://doi.org/10.1093/auk/96.3.619
Lobos G, Ferres M, Palma RE. 2005. Presencia de los géneros invasores Mus y Rattus en áreas naturales de Chile: un riesgo ambiental y epidemiológico. Revista Chilena de Historia Natural 78: 113-124. https://doi.org/10.4067/S0716-078X2005000100008
Medail F, Quezal P. 1999. Hot-spots analysis for conservation of plant bidioversity in the Mediterranean basin. Annals of the Missouri Botanical Garden 84: 112-127.
Myers N, Mittermeier RA, Mittermeier CG, Da Fonseca GAB, Kent J. 2000. Biodiversity hotspots for conservation priorities. Nature 403: 853-858. https://doi.org/10.1038/35002501
Nanni AS, Ortiz PE, Jayat JP, Martín E. 2012. Variación estacional de la dieta de la Lechuza de Campanario (Tyto alba) en un ambiente perturbado del Chaco Seco Argentino. Harnero 27: 149-157.
Naranjo J. 1993. Situación de la conservación de la biodiversidad en el Sistema Nacional de Áreas Protegidas de Chile. Parque Nacional Iguazú, Argentina CONAF, Argentina.
Noriega JI, Aramburú RM, Justo ER, De Santis LJM. 1993. Birds present in pellets of Tyto alba (Strigiformes, Tytonidae) from Casa de Piedra, Argentina. Journal of Raptor Research 27: 37-38.
Oltra C. 2016. Hipótesis de la alteración intermedia. http://sinergia-christian.blogspot.com/2016/07/trasplantar-hipotesis-y-teorias-de-un.html
Purvis A, Raven P. 2000. Extincion by numbers. Nature 403: 843-845.
Reise D. 1973. Clave para la determinación de los cráneos de marsupiales y roedores chilenos. Instituto de Biología, Universidad de Concepción, Concepción, Chile.
Matisoo-Smith E, Robbins JH. 2004. Origins and dispersals of Pacific people: evidence from mtDNA phylogenies of the Pacific rat. Proceedings of the National Academy of Sciences USA 101: 9167-9172. https://doi.org/10.1073/pnas.0403120101
Zurita C, Erazo A, Opitz M. 2018. Sobreposición de dieta estacional de Tucúquere (Bubo magellanicus) y lechuza blanca (Tyto alba) mediante el estudio de egagrópilas en la Reserva Nacional Río Clarillo. Biodiversidata: Conservación, gestión y manejo de áreas silvestres protegidas. Boletín N°6: 33-39.
This work is licensed under a Creative Commons Attribution 4.0 International License.