When more mangroves mean fewer molluscs: biodiversity relationships mediated by salinity in tropical coastal wetlands

Lon: longitude Lat: latitude Arboreal_Richness: species richness of arboreal molluscs Benthic_Richness: species richness of benthic molluscs AAT: annual average temperature (℃) AAP: annual average precipitation (mm) AI: aridity index FW: mangrove forest belt width (cm) F/T: ratio of mangrove belt width to tidal flat width SpH: sediment pH IS: interstitial water salinity(%) SS: sediment salinity(%) SMC: sediment moisture content(%) MD: median diameter (μm) TOC: organic carbon (g/kg) TOM: sediment organic matter (g/kg) TN: sediment total nitrogen(g/kg) CN: sediment C/N ratio MS: the number of mangrove species