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The Madrona Marsh Preserve, in the city of Torrance in the South Bay region of Southern California, is a seasonal wetland with vernal pools. The 43 acres (17 ha) was a former site of oil wells and is one of the few natural areas remaining within an urban landscape.

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  • Coto del Pantano Madrona (es)
  • Madrona Marsh (en)
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  • El Coto del Pantano Madrona (del inglés: Madrona Marsh Preserve o Madrona Marsh), se encuentra situado en Torrance, California, es el último que se encuentra en la bahía sur de Los Ángeles en el área de Los Ángeles y uno de los pocos humedales situado dentro de un paisaje urbano. Los accesos del público en general están controlados. Las visitas guiadas se pueden contratar a través de la asociación de "Amigos del Pantano Madrona" ("Friends of Madrona Marsh" ) o a través del Departamento de Ocio y Parques del ayuntamiento de Torrance (City of Torrance Parks and Recreation Department). (es)
  • The Madrona Marsh Preserve, in the city of Torrance in the South Bay region of Southern California, is a seasonal wetland with vernal pools. The 43 acres (17 ha) was a former site of oil wells and is one of the few natural areas remaining within an urban landscape. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Madrona_Marsh1.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Madrona_Marsh2.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Madrona_Marsh_Sign.jpg
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  • 33.82694444444444 -118.3425
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  • El Coto del Pantano Madrona (del inglés: Madrona Marsh Preserve o Madrona Marsh), se encuentra situado en Torrance, California, es el último que se encuentra en la bahía sur de Los Ángeles en el área de Los Ángeles y uno de los pocos humedales situado dentro de un paisaje urbano. Los accesos del público en general están controlados. Las visitas guiadas se pueden contratar a través de la asociación de "Amigos del Pantano Madrona" ("Friends of Madrona Marsh" ) o a través del Departamento de Ocio y Parques del ayuntamiento de Torrance (City of Torrance Parks and Recreation Department). Esta zona tomó forma cuando las montañas de Palos Verdes se elevaron por el sur formando la Península, el pantano Madrona es una depresión que recoge las lluvias de la estación húmeda (primavera) sobre todo de las tormentas. Después de la estación lluviosa, la evaporación, percolación y transpiración reducen el nivel de las aguas alrededor de unos 6 mm por día. A finales de agosto, el humedal está seco, y permanece en estas condiciones hasta la próxima estación de lluvias. Localizado al lado de unos terrenos que en 1924 tenían producción de petróleo, el pantano Madrona nunca ha tenido un desarrollo urbanístico como otros terrenos alrededor de las ciudades, y ha permanecido como un invalorable hábitat natural, para pájaros, reptiles, insectos e incluso para pequeños mamíferos. La National Audubon Society ha utilizado el pantano Madrona desde el año 1967, para su censo anual de aves y como un laboratorio para sus clases de biología y botánica. (es)
  • The Madrona Marsh Preserve, in the city of Torrance in the South Bay region of Southern California, is a seasonal wetland with vernal pools. The 43 acres (17 ha) was a former site of oil wells and is one of the few natural areas remaining within an urban landscape. Formed eons ago when the mountains of the Palos Verdes Peninsula rose to the south, Madrona Marsh is a shallow depression fed by wet season (spring) storms as the name "vernal" indicates. After the rainy season, evaporation, percolation and transpiration reduce the water depth by about one-quarter of an inch (6 mm) per day. By the end of August, the wetland is dry and remains so until the following rainy season. Situated on land that was set aside for oil production in 1924, Madrona Marsh was never developed while the city grew up around the site and remains a valuable natural habitat for birds, reptiles, insects and small mammals. Ongoing efforts are restoring native plants including wildflowers. Plantings may benefit local butterfly species including the Palos Verdes blue. The area has long been popular with bird watchers and The Audubon Society has used Madrona Marsh for their annual bird census since 1967. El Camino College uses it as an outdoor biology and botany lab. The Madrona Marsh Nature Center is operated by the City of Torrance in cooperation with the Friends of the Madrona Marsh. Activities include bird and nature walks, natural history classes and workshops, habitat restoration, science and astronomy programs, art exhibits, and children's nature programs. The center opened in 2001 and features exhibits about the plants, birds and animals of the marsh. The nature center for the Preserve is across the street. (en)
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  • POINT(-118.3424987793 33.826946258545)
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