FN Archimer Export Format
PT J
TI Nutrient scarcity strengthens soil fauna control over leaf litter decomposition in tropical rainforests
BT 
AF Peguero, Guille
   Sardans, Jordi
   Asensio, Dolores
   Fernández-Martínez, Marcos
   Gargallo-Garriga, Albert
   Grau, Oriol
   Llusià, Joan
   Margalef, Olga
   Márquez, Laura
   Ogaya, Romà
   Urbina, Ifigenia
   Courtois, Elodie A.
   Stahl, Clément
   Van Langenhove, Leandro
   Verryckt, Lore T.
   Richter, Andreas
   Janssens, Ivan A.
   Peñuelas, Josep
AS 1:1,2,3;2:2,3;3:2,3;4:1,2,3;5:2,3;6:2,3;7:2,3;8:2,3;9:2,3;10:2,3;11:2,3;12:1,4;13:5;14:1;15:1;16:6;17:1;18:2,3;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;
C1 Centre of Excellence PLECO (Plants and Ecosystems), Department of Biology, University of Antwerp, 2610 Wilrijk, Belgium
   CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08913 Bellaterra, Spain
   CREAF, 08913 Cerdanyola del Vallès, Spain
   Laboratoire Ecologie, Evolution, Interactions des Systèmes Amazoniens (LEEISA), Université de Guyane, CNRS, IFREMER, 97300 Cayenne, French Guiana
   INRA, UMR EcoFoG, CNRS, Cirad, AgroParisTech, Université des Antilles, Université de Guyane, 97310 Kourou, France
   Department of Microbiology and Ecosystem Science, University of Vienna, 1090 Vienna, Austria
C2 UNIV ANTWERP, BELGIUM
   CSIC, SPAIN
   CREAF, SPAIN
   CNRS, FRANCE
   INRA, FRANCE
   UNIV VIENNA, AUSTRIA
UM LEEISA
IN WOS Cotutelle UMR
   copubli-france
   copubli-europe
IF 4.637
TC 22
UR https://archimer.ifremer.fr/doc/00513/62424/69469.pdf
LA English
DT Article
DE ;biogeochemistry;extracellular enzyme activity;litter decomposition;nutrients;soil fauna
AB Soil fauna is a key control of the decomposition rate of leaf litter, yet its interactions with litter quality and the soil environment remain elusive. We conducted a litter decomposition experiment across different topographic levels within the landscape replicated in two rainforest sites providing natural gradients in soil fertility to test the hypothesis that low nutrient availability in litter and soil increases the strength of fauna control over litter decomposition. We crossed these data with a large dataset of 44 variables characterizing the biotic and abiotic microenvironment of each sampling point and found that microbe-driven carbon (C) and nitrogen (N) losses from leaf litter were 10.1 and 17.9% lower, respectively, in the nutrient-poorest site, but this among-site difference was equalized when meso- and macrofauna had access to the litterbags. Further, on average, soil fauna enhanced the rate of litter decomposition by 22.6%, and this contribution consistently increased as nutrient availability in the microenvironment declined. Our results indicate that nutrient scarcity increases the importance of soil fauna on C and N cycling in tropical rainforests. Further, soil fauna is able to equalize differences in microbial decomposition potential, thus buffering to a remarkable extent nutrient shortages at an ecosystem level. 
PY 2019
PD SEP
SO Proceedings Of The Royal Society B-biological Sciences
SN 0962-8452
PU The Royal Society
VL 286
IS 1910
UT 000486416500007
DI 10.1098/rspb.2019.1300
ID 62424
ER

EF