%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Hunter, A.
%A Cebrian, J.
%A Stutes, J. P.
%A Patterson, D.
%A Christiaen, B.
%A Lafabrie, Céline
%A Goff, J.
%T Magnitude and trophic fate of black needlerush (Juncus roemerianus) productivity : does nutrient addition matter ?
%D 2015
%L fdi:010064074
%G ENG
%J Wetlands
%@ 0277-5212
%K Nutrient enrichment ; Black needlerush ; Primary productivity ; Herbivory ; Decomposition ; Resiliency
%K ETATS UNIS ; FLORIDE ; GOLFE DU MEXIQUE
%M ISI:000351532700017
%N 2
%P 401-417
%R 10.1007/s13157-014-0611-5
%U https://www.documentation.ird.fr/hor/fdi:010064074
%> https://www.documentation.ird.fr/intranet/publi/2015/04/010064074.pdf
%V 35
%W Horizon (IRD)
%X The black needlerush (Juncus roemerianus) is a common plant species in saltmarshes of the Gulf of Mexico. Our knowledge of the trophic fate of the plant's productivity, which is important for an understanding of marsh functionality, is incomplete. Here we examine the productivity and trophic fate (herbivory, decomposition and biomass storage) of two black needlerush-dominated marshes in the northern Gulf of Mexico. We also investigate the effects of low intensity, short duration (1.5 years) nutrient inputs. The marshes experienced low rates of leaf herbivory and decomposition, thereby leaving most leaf production available for storage in the marsh or export to other systems. The marshes also featured large pools of belowground biomass, which indicates an important role as carbon reservoirs. Our nutrient inputs did not affect significantly the plant's productivity and trophic fate. These results suggest black needlerush marshes may be resistant to low intensity, short-term nutrient inputs. However studies with other marsh plants have shown that longer, more intense nutrient inputs may lead to larger and diverse effects on plant productivity and trophic fate. Establishing the nutrient dose rates at which significant impacts occur on plant productivity and trophic fate in these and other marshes deserves more research.
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