Carlos Anwandter Nature Sanctuary facts for kids
Quick facts for kids Carlos Anwandter Nature Sanctuary |
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IUCN Category IV (Habitat/Species Management Area)
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 Carlos Anwandter Nature Sanctuary
Location in Chile
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| Location | Los Ríos Region, Chile |
| Nearest city | Valdivia |
| Area | 4,877 ha (12,050 acres) |
| Designation | Nature sanctuary |
| Designated | 1981 |
| Official name: Río Cruces Chorocamayo Sanctuary | |
| Designated: | 27 July 1981 |
| Reference #: | 222 |
Carlos Anwandter Nature Sanctuary (Spanish: Santuario de la naturaleza Carlos Anwandter) is protected wetland in Cruces River about 15 km (9 mi) north of Valdivia, Chile. The sanctuary is named after the German politician Carlos Anwandter who settled in Valdivia in 1850. This sanctuary provides a home for many native waterbird species to flourish, and contains roughly 119 species of birds alone. The most numerous bird species in the sanctuary are the black-necked swans followed by coots.
Despite being a nature sanctuary for the country of Chile under the National Monuments Act, it wasn't internationally recognized for its cultural and natural value until the Ramsar Wetlands Convention of 1971. The Carlos Anwandter Nature Sanctuary Management Plan was instated in 2016 by the National Forest Corporation (CONAF) with financial aid from the Ramsar Convention.
The invasive plant species Limnobium laevigatum is present in the sanctuary.
Back-necked swan population
Changes after 2014
In April 2020 the a record of 21,123 black-necked swans were counted in the sanctuary.
In June 2022 it was noticed by Conaf that the population of swans in the sanctuary had declined sharply from 22,419 in 2020 to 2,782. No nests nor eggs were found in the surveys of the National Forest Corporation.
The spread of American minks and incursions of South American sea lions to the sanctuary are thought to have had a negative impact on the swan populations. In addition, the use of water scooters and the development of real estate projects around the sanctuary have also been posited as having a negative influence on the swan population.
In March 2023 various cases of avian influenza were detected in the black-necked swan populations in the sanctuary prompting authorities to declare a "zoosanitary emergency".
See also
In Spanish: Santuario de la naturaleza Carlos Anwandter para niños
- Área Costera Protegida Punta Curiñanco
- Oncol Park
- Punucapa
- Urban Wetlands Law
