Fig. 1

Scatterplot of δ¹⁵N und δ¹³C signatures of salt marsh fauna taxa / species (circles), plants (triangles), litter (diamonds) and soil (crossed squares) in the upper salt marsh (USM)= green and lower salt marsh (LSM)= blue; (a) USM in April, (b) LSM in April, (c) USM in July, (d) LSM in July, (e) USM in October and (f) LSM in October; means ± SD. Dotted lines indicate trophic levels. Animals: Ami.—Amischa sp., Arg.—Argenna sp., D. gust—Dicheirotrichus gustavii, Dys.—Dyschirius sp., Ochth.—Ochthebius dilatatus, Linyp.—Linyphiidae, Stap.—Staphylinidae larvae, T. sal—Talitrus saltator. Plants: Atr.litt—Atriplex littoralis, Art.mar—Artemisia maritima, A. por—Atriplex portulacoides, Atr.pro—Atriplex prostrata, El.ath—Elymus athericus, P.mar—Puccinellia maritima, Sp.sal—Spergularia salina