The document discusses a study on threats to the mangrove ecosystem in India's Sundarbans region. Researchers developed composite threat scales for three sectors (western, central, eastern) by surveying 305 respondents from different backgrounds on their perceptions of six major threats. For the western sector, pollution was ranked as the highest threat. In the central sector, siltation was ranked highest. And in the eastern sector, erosion was seen as the greatest threat. The threat rankings varied significantly between sectors, reflecting differences in geographical and environmental conditions across the Sundarbans region.