The use of fertilizers has led to mass deaths of flamingos!

Active use of fertilizers in agriculture on the banks of lakes in Tanzania has led to the fact that the water began to multiply rapidly cyanobacteria. Poisonous substance, which they emit, caused a massive loss of even a flamingo.
Hezron Nong Emmanuel (Hezron Emmanuel Nonga) from the Norwegian School of Veterinary Research decided to find out the cause of mass deaths of flamingos dwarf (Phoeniconaias minor Geoffroy), which takes place the last few years in the lakes of Tanzania, the agency says Kazakh-Grain. Researchers conducted a study of Lake Victoria in the north-west of the country and several small lakes in the north, including Lake Manyara. They found an excessive amount of water in the cyanobacteria that produce Microcystin - a toxic substance, deleterious effect on fish and other inhabitants of the lake. Researchers concluded that the abundance of cyanobacteria caused by runoff into the lake a large number of nitrogen fertilizers - on the shores of these lakes are settlements and agricultural land. Moreover, according to Nong, the economic activity in these areas no one was watching, and the amount of fertilizer that is used in the fields, not limited.
To find out why flamingos are dying, the researchers conducted an analysis of their organs and tissues. They found elevated levels of microcystin (a substance that is isolated cyanobacteria in the course of their life) in the liver of these birds. According to Nong probably the food chain Microcystin ingested flamingos, causing their death.Microcystin in large quantities is toxic to many animals, including fish. This substance causes liver necrosis, which leads to death, the IA-Kazakh grain.