The Bird is the Word, Part 2

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The first post on this topic established that the Salton Sea is an ecological oasis and one of the last existing stops in southern California for migratory birds along the Pacific Flyway. However, it was mentioned previously that there are many factors which are threatening this avian Eden. Each of these threats will be addressed in more detail individually, with the first being avian botulism toxin.

Avian botulism toxin is produced by the bacteria Clostridium botulinum. While the bacteria is commonly found in soils and wetlands, it will not produce the botulism toxin unless certain environmental conditions are met. In order for the bacteria to produce the toxin, it needs an anaerobic environment, warm temperatures, and a protein source.[1] Do these conditions sound familiar? In the summer, low dissolved oxygen levels, high temperatures, and the presence of dead algae (protein source) in the Salton Sea provide an ideal environment for the growth of C. botulinum and the subsequent production of avian botulism toxin. Continue reading “The Bird is the Word, Part 2”

Bird is the Word

Over 400 different species of birds rely on the Salton Sea

Bird
Yuma Ridgway’s Rail. Aaron Maizlish, Ridgway’s Rail. 2014, click for link.

The Salton Sea is often construed by the news, documentaries, and other blogs as a post-apocalyptic wasteland that is devoid of life. However, this is an incorrect portrayal that has taken hold, most likely for its dramatic effect. In reality, the Salton Sea and its surrounding area is an oasis of biodiversity in the Sonoran Desert. Over 400 different species of birds utilize the sea for some portion of the year [1]. This makes the Salton Sea rank 2nd in avian diversity in the United States [2]. In addition to the sheer number of birds that rely on the Sea, it is important to consider which species of birds are there. Continue reading “Bird is the Word”