Coastal wetlands of the Maullín River: one of the places with the greatest diversity of aquatic birds in Chile
PDF (Español (España))


Áreas protegidas
aves playeras migratorias

How to Cite

Delgado, C. ., Espinosa, L., Pfeifer, A., Cardenas, J., & Cursach Valenzuela, J. (2022). Coastal wetlands of the Maullín River: one of the places with the greatest diversity of aquatic birds in Chile. Anales Del Instituto De La Patagonia, 50.


The Sanctuary of Nature Humedales del río Maullín is a system made up of various types of wetlands, from its origin in Llanquihue Lake to its encounter with the Pacific Ocean. Its great estuary constitutes one of the coastal wetland systems most diverse of continental Chile. The objective of this work was to determine the composition and structure of the community of aquatic birds present in various coastal wetlands of the Maullín River, considering its seasonal variation over six years of study. From 2015 to 2020, seasonal censuses of aquatic birds were conducted in four coastal wetlands of the Maullín River: Las Lajas, Laguna Quenuir, Lepihué-La Pasada, and Amortajado. A total of 68 species of aquatic birds were recorded, of which 70% are residents, and about 30% migratory shorebirds, mostly of boreal origin. The greatest differences in the diversity of aquatic birds were obtained when comparing Laguna Quenuir with the rest of the coastal wetlands studied. This wetland presented a greater particularity in the diversity of birds, therefore, it is advisable to take special management measures for its conservation. On the other hand, the wetlands of Amortajado and Las Lajas presented similar values of richness and abundance of aquatic birds, sharing important abundances of migratory shorebirds such as Phoenicopterus chilensis and Limosa haemastica. The coastal wetlands of the Maullín River correspond to one of the places with the greatest diversity of aquatic birds on the Chilean littoral
PDF (Español (España))


Acuña, M. P., Vukasovic, M. A., Hernández, H. J., Acuña, T. A., & Estades, C. F. (2019). Effects of the surrounding landscape on waterbird populations in estuarine ecosystems of central Chile. Wetlands Ecology and Management, 27, 295-310.

Andrade, B. (1985). Estudio morfosedimentológico de marismas del golfo de Ancud, Chile. Revista de Geografía Norte Grande, 12, 27-33.

Andres, B., Johnson, J., Valenzuela, J., Morrinson, R., Espinosa, L., & Ross, R. (2009). Estimating Eastern Pacific Coast Populations of Whimbrels and Hudsonian Godwits, with an Emphasis on Chiloé Island, Chile. Waterbirds, 32, 216-224.

Chávez-Villavicencio, C., Tabilo-Valdivieso, E., & Jofré-Pérez, C. (2019). Tsunami effects on Coquimbo Bay wetland water- bird species composition, associated with the 2015 Mw 8.4 Illapel earthquake (northern Chile). Latin American Journal of Aquatic Research, 47, 845-852.

CONAMA. (2002). Estrategia regional para la conservación y utilización sostenible de la biodiversidad, Región de Los Lagos. Comisión Nacional del Medio Ambiente, Gobierno de Chile.

Cursach, J. A., & Rau, J. R. (2008). Influencia de las perturbaciones humanas sobre la diversidad del ensamble de aves costeras en el Seno de Reloncaví, sur de Chile. Boletín Chileno de Ornitología, 14, 92-97.

Cursach, J. A., Rau, J. R., & Tobar, C. (2010). Aves en un humedal marino del sur de Chile. Revista de Biología Marina y Oceanografía, 45, 441-450.

Delgado, C., Pfeifer, A.M., Espinosa, L., & Ponce, I. (2016). Guía de aves de los humedales de Maullín. ONG Conservación Marina.

Dittmann, S., & Vargas, J. (2001). Tropical tidal flat benthos compared between Australia and Central America. In K. Reise (Ed.), Ecological comparisons of sedimentary shores (pp. 275-293). Springer.

Echevarría, A., & Chani, J. (2000). Estructura de la comunidad de aves acuáticas del embalse El Cadillal, Tucumán, Argentina. Acta Zoológica Lilloana, 45, 219-232.

Estades, C. F., & Vukasovic, M. A. (2013). Waterbird population dynamics at estuarine wetlands of central Chile. Ornitología Neotropical, 24, 67-83.

Estades, C. F., Vukasovic, M. A., & Aguirre, J. (2017). Birds in coastal wetlands of Chile. In J. M. Fariña, & A. Camaño (Eds.), The ecology and natural history of chilean saltmarshes (pp. 47-70). Springer.

Gardner, R. C., & Finlayson, M. (2018). Global wetland outlook: State of the world’s wetlands and their services to people.

Ramsar Convention Secretariat, Stetson University College of Law Research Paper No. 2020-5.

Gatto, A., Quintana, F., Yorio, P., & Lisnizer, N. (2005). Abundancia y diversidad de aves acuáticas en un humedal marino del golfo San Jorge, Argentina. Hornero, 20, 141-152.

González, A. L., Vukasovic, M. A., & Estades, C. F. (2011). Variación temporal en la abundancia y diversidad de aves en el humedal del río Itata, región del Bío-Bío, Chile. Gayana, 75, 170-181.

González-Gajardo, A., Sepúlveda, P. V., & Schlatter, R. (2009). Waterbird assemblages and habitat characteristics in wetlands: influence of temporal variability on species-habitat relationships. Waterbirds, 32, 225-233.

Jaksic, F., & Medel, R. (1990). Objective recognition of guilds: testing for statistically significant species cluster. Oecología, 82, 87-92.

McAleece, N. (1997). Biodiversity professional beta 1. Version 1.0. The Natural History Museum and The Scottish Association for Marine Science.

Pérez-Vargas, A. D., Bernal, M., Delgadillo, C. S., González-Navarro, E. F., & Landaeta, M. F. (2016). Benthic food distribution as a predictor of the spatial distribution for shorebirds in a wetland of central Chile. Revista de Biología Marina y Oceanografía, 51, 147-159.

Quijón, P., Jaramillo, E., & Pino, M. (1996). Macroinfaunal assemblages associated with mussel and clam beds in an estuary of southern Chile. Estuaries, 19, 62-74.

Suazo, C. G., Arriagada, A. M., & Rau, J. R. (2012). Ephemeral aquatic bird assemblages in estuarine wetlands from south- central Chile: using an intertidal flat habitat during the austral summer. Estuaries and coasts, 35, 1137-1143.

Van der Meer, J., Piersma, T., & Beukema, J. J. (2001). Population dinamics of benthic species on tidal flats: the possible roles of shorebirds predation. In K. Reise (Ed.), Ecological comparisons of sedimentary shores (pp. 317-335). Springer.

Victoriano, P. F., González, A. L., & Schlatter, R. (2006). Estado de conocimiento de las aves de aguas continentales de Chile. Gayana, 70, 140-162.

Von Meyer, A., & Espinosa, L. (1998). Situación del flamenco chileno (Phoenicopterus chilensis) en Chiloé y sur de la Provincia de Llanquihue. Boletín Chileno de Ornitología, 5, 16-20.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Copyright (c) 2022 Claudio Delgado, Luis Espinosa, Ana Pfeifer, José Cardenas, Jaime Cursach Valenzuela


Download data is not yet available.


Metrics Loading ...