Los humedales son los ecosistemas más amenazados del mundo, en zonas costeras desaparecena un ritmo mayor que otros ecosistemas. En la costa del Pacífico sudamericano existen humedalesimportantes por los servicios ecosistémicos que proveen a las comunidades locales. Uno de loshumedales costeros chilenos amenazados corresponde a la desembocadura del río Limarí, cuyosservicios ecosistémicos son valorados por los pobladores de la Caleta El Toro. Por esta razón, seconsideró importante conocer la percepción de los pobladores de la Caleta El Toro con respecto alhumedal y su disposición a organizarse para contribuir a la creación y administración de un SitioRamsar. Entre marzo de 2015 y diciembre de 2016, se identificaron actores clave y se trabajó entrevistaspersonales en semi profundidad y dos talleres aplicando cuestionarios semi estructurados. Seestableció una línea cronológ...

Camera traps allow us to estimate abundance, distribution, habitat use and activity patterns of fauna. It has rarely been used in the study of birds and can be a good option when direct or satellite observation methods are limited. The idea was to test the effectiveness of camera traps, on a small scale, in the study of waterfowl activity patterns, compared to point observation methods. Anas georgica was used as the object of study with the objective of determining their activity patterns in spring-summer and autumn-winter. A camera trap was installed in a temporary wetland active 24 hours a day for one year. Activities were recorded in six time periods: sunrise, morning, afternoon, twilight, night and early morning. The activity pattern was analyzed with the density function (kernel method). In spring-summer, 96 records were obtained. The afternoon period presented a predominance of act...

Camera traps allow us to estimate abundance, distribution, habitat use and activity patterns of fauna. It has rarely been used in the study of birds and can be a good option when direct or satellite observation methods are limited. The idea was to test the effectiveness of camera traps, on a small scale, in the study of waterfowl activity patterns, compared to point observation methods. Anas georgica was used as the object of study with the objective of determining their activity patterns in spring-summer and autumn-winter. A camera trap was installed in a temporary wetland active 24 hours a day for one year. Activities were recorded in six time periods: sunrise, morning, afternoon, twilight, night and early morning. The activity pattern was analyzed with the density function (kernel method). In spring-summer, 96 records were obtained. The afternoon period presented a predominance of act...

Los claros (0,1 - 10 ha) son perturbaciones a pequeña escala que influyen en la estructura y biodiversidad del bosque. Las altas densidades de vástagos en los claros son la razón de la alta diversidad (hipótesis de claros de Denslow). Estudios con flora probaron o refutaron esta hipótesis, pero, se desconoce la relación con fauna silvestre. Por lo tanto, se puso a prueba esta hipótesis usando reptiles y mamíferos como modelo de estudio. El objetivo fue comparar las riquezas y abundancias entre un claro y bosque con cobertura, en la quebrada el Gallo. Los datos se tomaron por observación directa y trampas Sherman (febrero - noviembre 2016), en tres polígonos de 12 ha cada uno. Dos con cobertura y uno con un claro producido por deslizamiento rocoso. Se analizó el índice de similitud de Chao-Jaccard y una prueba de comparaciones múltiples de Tukey, para determinar las diferenci...

Social networks revolutionized communication in the world, transformed the media into broadcast media where users shared information of different kinds. For example, users of social networks in Chile posted photographs of wildlife including felines such as Leopardus colocola (Molina, 1872). If social media users published their findings in a selfless, altruistic and honest way, then they will serve as a tool for ecology research in the future. Under this consideration, the objective of this work was to establish if social networks can be constituted as a data source to know sites of presence of L. colocola in Chile, in comparison with the records published in scientific media. Considering that the privacy and use policies allow the use of the information from the networks, between January and April 2021, Facebook, Instagram, YouTube and Twitter were searched for publications about the sp...

In Chile, texts written about reptiles usually describe the species of the genus Liolaemus as insectivorous, omnivorous and sometimes herbivorous. However, no greater level of detail is given. Within the genus Liolaemus is Liolaemus zapallarensis (Müller & Hellmich, 1933), a species endemic to Chile that inhabits coastal scrub with rocks, and is known to be omnivorous, including green shoots and flowers. In order to contribute to the knowledge of the diet of this species, the objective of this note is to report the casual record of an unknown component in the diet of the species. We report the predation and swallowing of an individual of the spider Acanthogonatus sp. by L. zapallarensis in a dune with a high degree of anthropic intervention. Hunting occurred quickly and effectively.

“El Culebron” is a coastal wetland in the region of Coquimbo (Chile). Normally, visitors, pets and vehicles affect wetlands, especially birds, causing nest destruction, death of chicks, and foraging deficiencies, among others. El Culebron receives the pressure of visitors and is affected by the presence of pets accompanied by their owners, stray and feral dogs that latter hunt species of wild bird in packs. To address this problem, it was set as the main objective to determine the response of bird richness in the presence of visitors, vehicles and dogs in general. Between August 2012 and September 2013, counts of birds, visitors, vehicles and dogs were made from fixed points and with double observers. The data were analyzed using a Poisson regression selecting the best model with the Akaike Information Criterion. It was established that bird richness responded negatively to the prese...

If the spring-summer arrival of migratory Nearctic waders influences the increase in richness and abundance of bird assemblages in coastal wetlands then both the richness and abundance of this group of birds will decline by the fall. To verify this, the San Pedro de Vice mangrove was used as a model of study where it was established that the fall in bird species in autumn could be due to the return of migratory species to the northern hemisphere. Therefore, the objective was to determine the decrease in richness and abundance of migratory Nearctic waders. Ten biweekly surveys were conducted between December 2010 and April 2011, covering a distance of 4.5 km from the north of the tidal channel, preferably when the tide was descending. The decrease in richness was analyzed with a Poisson regression, the decrease in abundance was done through the abundance mean with a generalized linear mod...

Si la llegada en primavera-verano de las aves limícolas migratorias neárticas influye en el incremento de la riqueza y abundancia de los ensambles de aves en los humedales costeros entonces, tanto la riqueza como la abundancia de este grupo de aves disminuirán hacia el otoño. Para comprobarlo se usó como modelo de estudio al Manglar San Pedro de Vice donde se estableció que la disminución de la riqueza de aves en otoño podría deberse al retorno de las especies migratorias neárticas hacia el hemisferio norte. Por tanto, el objetivo fue determinar la disminución de la riqueza y abundancia de aves limícolas migratorias neárticas. Se realizaron 10 muestreos quincenales entre diciembre del 2010 y abril del 2011, recorriendo una distancia de 4.5 km desde el norte del canal de marea preferentemente cuando la marea estaba bajando. La disminución de la riqueza se analizó con una re...

Lama guanicoe was distributed in the Andes of Chile from Arica and Parinacota to Magallanes. Currently its distribution is fragmented with populations in Tarapaca, Coquimbo, Aysen and Magallanes Regions. In the Bosque Fray Jorge National Park (Coquimbo), the last populations of wild guanacos were observed in the year 1920. In 1994, eight individuals were released in the Park, of which five survived. Since then, occasional counts of the reintroduced population were made. In November 2013, a monitoring methodology was developed based on count transects. The objectives were to analyze the historical changes in the population of guanacos in the Park and determine the use and selection of habitats. Linear models were used to analyze population trends and the Manly Selection Ratio for habitat selection. There was an increase in the population to 33 individuals. The main use that they gave to t...

Lama guanicoe was distributed in the Andes of Chile from Arica and Parinacota to Magallanes. Currently its distribution is fragmented with populations in Tarapaca, Coquimbo, Aysen and Magallanes Regions. In the Bosque Fray Jorge National Park (Coquimbo), the last populations of wild guanacos were observed in the year 1920. In 1994, eight individuals were released in the Park, of which five survived. Since then, occasional counts of the reintroduced population were made. In November 2013, a monitoring methodology was developed based on count transects. The objectives were to analyze the historical changes in the population of guanacos in the Park and determine the use and selection of habitats. Linear models were used to analyze population trends and the Manly Selection Ratio for habitat selection. There was an increase in the population to 33 individuals. The main use that they gave to t...