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Tigers and crocs make mangrove preservation tough work

To help preserve mangrove forests researchers have to take on demanding field work.

A recent project involved mapping part of the Sundarbans, a vast area of mangrove forests where the waters of the Ganges, Brahmaputra and Meghna rivers spill into the Bay of Bengal. However, Dr Sahadev Sharma, a consultant scientist to the USDA Forestry Service, says there are signs of both manmade and natural stress, which he identified during his field survey beginning of this year. It's a big improvement on the previous system, which involved attaching cumbersome fibreglass arms to the rods, which were extended to take height measurements.

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