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@ARTICLE{Siebers:842483,
author = {Siebers, Nina and Martius, Christopher and Eckhardt,
Kai-Uwe and Garcia, Marcos V. B. and Leinweber, Peter and
Amelung, Wulf},
title = {{O}rigin and {A}lteration of {O}rganic {M}atter in
{T}ermite {M}ounds from {D}ifferent {F}eeding {G}uilds of
the {A}mazon {R}ainforests},
journal = {PLoS one},
volume = {10},
number = {7},
issn = {1932-6203},
address = {Lawrence, Kan.},
publisher = {PLoS},
reportid = {FZJ-2018-00708},
pages = {e0132876 -},
year = {2015},
note = {Correction},
abstract = {The impact of termites on nutrient cycling and tropical
soil formation depends on their feeding habits and related
material transformation. The identification of food sources,
however, is difficult, because they are variable and changed
by termite activity and nest construction. Here, we related
the sources and alteration of organic matter in nests from
seven different termite genera and feeding habits in the
Terra Firme rainforests to the properties of potential food
sources soil, wood, and microepiphytes. Chemical analyses
comprised isotopic composition of C and N, cellulosic (CPS),
non-cellulosic (NCPS), and N-containing saccharides, and
molecular composition screening using pyrolysis-field
ionization mass spectrometry (Py-FIMS). The isotopic
analysis revealed higher soil δ13C (-27.4‰) and δ15N
(6.6‰) values in nests of wood feeding Nasutitermes and
Cornitermes than in wood samples (δ13C = -29.1‰, δ15N =
3.4‰), reflecting stable-isotope enrichment with organic
matter alterations during or after nest construction. This
result was confirmed by elevated NCPS:CPS ratios, indicating
a preferential cellulose decomposition in the nests. High
portions of muramic acid (MurAc) pointed to the
participation of bacteria in the transformation processes.
Non-metric multidimensional scaling (NMDS) revealed
increasing geophagy in the sequence Termes < Embiratermes <
Anoplotermes and increasing xylophagy for Cornitermes <
Nasutitermes, and that the nest material of Constrictotermes
was similar to the microepiphytes sample, confirming the
report that Constrictotermes belongs to the
microepiphyte-feeders. We therewith document that nest
chemistry of rainforest termites shows variations and
evidence of modification by microbial processes, but
nevertheless it primarily reflects the trophic niches of the
constructors.},
cin = {IBG-3},
ddc = {500},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000358193100093},
pubmed = {pmid:26167921},
doi = {10.1371/journal.pone.0132876},
url = {https://juser.fz-juelich.de/record/842483},
}