000112695 001__ 112695
000112695 005__ 20190829172456.0
000112695 037__ $$aARTICLE
000112695 245__ $$aVertical micro-distribution and response to nitrogen deposition of testate amoebae in Sphagnum
000112695 269__ $$a2004
000112695 260__ $$c2004
000112695 336__ $$aJournal Articles
000112695 520__ $$aPrevious studies have shown the existence of a vertical micro-distribution of testate amoebae in the first centimeters of Sphagnum and their response to nutrient enrichment. In order to test the response of testate amoebae to depth and N addition in dry moss carpets recolonizing cutover peatlands, we sampled Sphagnum that had received 0, 1, 3, or 10g N m22 yr21 for three years. The mosses were cut into three segments: 0–1cm, 1–3cm and 3–5cm and analyzed for testate amoebae. The overall diversity (22 taxa) was high considering the dryness of the site, but the species richness of individual samples was low (mean 6.6). The presence of several species characteristic of wetter conditions suggests that they have a broader tolerance than usually believed and/or have a high colonization potential. Species richness increased with depth. Assulina muscorum was most abundant in the top segment, while Phryganella acropodia, Heleopera rosea and Nebela militaris were most abundant in the deepest segment. Neither the metabolism type nor the shell characteristics significantly explained the vertical distribution of species. There was no overall response of testate amoebae to N, although one species, Bullinularia indica, was significantly more abundant in the fertilized than in the control plots.
000112695 6531_ $$atestate amoebae
000112695 6531_ $$atestaceans
000112695 6531_ $$aprotozoa
000112695 6531_ $$aSphagnum
000112695 6531_ $$abog
000112695 6531_ $$apeatland
000112695 6531_ $$anitrogen
000112695 6531_ $$aN addition
000112695 6531_ $$aexperiment
000112695 6531_ $$avertical gradient
000112695 6531_ $$avertical micro-distribution
000112695 6531_ $$aLe Cachot
000112695 6531_ $$aSWITZERLAND
000112695 6531_ $$aJURA MOUNTAINS
000112695 6531_ $$aCUTOVER PEATLAND
000112695 6531_ $$aPolytrichum strictum
000112695 6531_ $$aSphagnum fallax
000112695 6531_ $$aatmospheric N deposition
000112695 6531_ $$amixotrophy
000112695 6531_ $$aSHELL MORPHOLOGY
000112695 6531_ $$aAtmospheric nitrogen pollution
000112695 6531_ $$acommunity composition
000112695 6531_ $$amicro-environmental gradients
000112695 6531_ $$aecology
000112695 700__ $$aMitchell, E.A.D.
000112695 700__ $$aGilbert, D.
000112695 773__ $$j51$$tJournal of Eukaryotic Microbiology$$k4$$q485-495
000112695 909C0 $$xU11021$$pECOS$$0252129
000112695 909CO $$qENAC$$particle$$ooai:infoscience.tind.io:112695
000112695 937__ $$aECOS-ARTICLE-2007-043
000112695 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000112695 980__ $$aARTICLE