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Taiwan's migrating Crab population returns thanks to safer road crossings

Bamboo bridges and road?closures helped protect Taiwan's biggest terrestrial crab species when they returned to the sea during breeding season.

Taijiang National Park, located in southern Taiwan's city of Tainan, is home to the largest number of mangrove land crabs on the island.

During the breeding season from July to September, female crabs descend to 'the sea' to release their eggs. However, because their migration route crosses roads, they are vulnerable to being hit by cars.

Taijiang National Park 'Director Chen Junshan said that the road closures, bamboo bridges and other measures have reduced roadkill -and helped increase crab numbers from more than 5,000 per year in earlier years to over 10,000 last.

Chen said: "The mangrove land crab can bring all these nutrients back to the land and allow the coastal forest become more abundant." "If you protect land crabs, then the entire coastal forest belt will be protected."

The 'environment' was given short shrift by the government during Taiwan’s rapid industrialisation in the 1960s and 1980s. A network of national parks and 'protected areas' are now being built across the island to attract tourists.

Tainan's park is home to the black-faced. spoonbill bird, which was nearly extinct but has recovered. (Reporting and writing by Ann Wang, Fabian Hamacher, Ben Blanchard. Editing by Cynthia Osterman.)

(source: Reuters)