000020434 001__ 20434
000020434 041__ $$aEnglish
000020434 100__ $$aNamgail, T.
000020434 245__ $$aBiomass and diversity of dry alpine plant communities along altitudinal gradients in the Himalayas
000020434 260__ $$c2012
000020434 300__ $$a93-101
000020434 507__ $$aGopal Sing Rawat , ICIMOD staff , peerreviewed
000020434 520__ $$aA non-linear relationship between phytodiversity and altitude has widely been reported, but the relationship between phytomass and altitude remains little understood. We examined the phytomass and diversity of vascular plants along altitudinal gradients on the dry alpine rangelands of Ladakh, western Himalaya. We used generalized linear and generalized additive models to assess the relationship between these vegetation parameters and altitude. We found a hump-shaped relationship between aboveground phytomass and altitude. We suspect that this is engendered by low rainfall and trampling/excessive grazing at lower slopes by domestic livestock, and low temperature and low nutrient levels at higher slopes. We also found a unimodal relationship between plant species-richness and altitude at a single mountain as well as at the scale of entire Ladakh. The species-richness at the single mountain peaked between 5,000 and 5,200 m, while it peaked between 3,500 and 4,000 m at entire Ladakh level. Perhaps biotic factors such as grazing and precipitation are, respectively, important in generating this pattern at the single mountain and entire Ladakh.
000020434 653__ $$aAboveground biomass
000020434 653__ $$aAltitude
000020434 653__ $$aMid-altitude effect
000020434 653__ $$aRapoport’s rule
000020434 653__ $$aSpecies richness
000020434 653__ $$aVascular plants
000020434 650__ $$aNatural resource management
000020434 700__ $$aRawat, G. S.
000020434 700__ $$aMishra, C.
000020434 700__ $$aVan Wieren, S.
000020434 700__ $$aPrins, H.
000020434 773__ $$pJournal of Plant Research
000020434 773__ $$v125 (1)
000020434 773__ $$a10.1007/s10265-011-0430-1
000020434 8564_ $$uhttp://dx.doi.org/10.1007/s10265-011-0430-1
000020434 980__ $$aARTICLE