Plant responses to simultaneous stress of waterlogging and shade: amplified or hierarchical effects?

TY - JOUR

T1 - Plant responses to simultaneous stress of waterlogging and shade: amplified or hierarchical effects?

AU - Lenssen, J.P.M.

AU - Menting, F.B.J.

AU - Van der Putten, W.H.

N1 - Reporting year: 2003 Metis note: 3095; CTE; MTI ; TE file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs2003/Lenssen_ea_3095.pdf

PY - 2003

Y1 - 2003

N2 - Community ecologists often assume a hierarchy of environmental sieves to predict the impact of multiple stresses on species distribution. We tested whether this assumption corresponds to physiological responses using impact of water level and shade in wetland vegetation as a model. Seedlings of four wetland species were grown under full light and simulated canopy shade, both in drained and waterlogged soils. When subject to both stresses simultaneously, waterlogging and shade independently affected growth of the two waterlogging tolerant species. For the intolerant species, however, waterlogging had the largest impact and the additional effect of shade was smaller than the effect of shade in drained soil. Soil flooding decreased specific leaf area but only if plants were These results demonstrate that light limitation in flooded habitats only plays a role if species can tolerate waterlogging and therefore correspond with the notion that water level determines the potential species pool and that standing crop consequently determines which species can actually persist.

AB - Community ecologists often assume a hierarchy of environmental sieves to predict the impact of multiple stresses on species distribution. We tested whether this assumption corresponds to physiological responses using impact of water level and shade in wetland vegetation as a model. Seedlings of four wetland species were grown under full light and simulated canopy shade, both in drained and waterlogged soils. When subject to both stresses simultaneously, waterlogging and shade independently affected growth of the two waterlogging tolerant species. For the intolerant species, however, waterlogging had the largest impact and the additional effect of shade was smaller than the effect of shade in drained soil. Soil flooding decreased specific leaf area but only if plants were These results demonstrate that light limitation in flooded habitats only plays a role if species can tolerate waterlogging and therefore correspond with the notion that water level determines the potential species pool and that standing crop consequently determines which species can actually persist.

U2 - 10.1046/j.1469-8137.2003.00666.x

DO - 10.1046/j.1469-8137.2003.00666.x

M3 - Article

SN - 0028-646X

VL - 157

SP - 281

EP - 290

JO - New Phytologist

JF - New Phytologist

IS - 2

ER -