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Title

Nutrient spatial variability in biogenic structures of Nasutitermes (Termitinae; Isoptera) in a gallery forest of the Colombian ‘Llanos’

AuthorsJiménez, Juan J. ; Decaëns, Thibaud; Lavelle, Patrick
KeywordsNutrient dynamics
Termites
Carbon
Soil ecology
Ecosystem engineers
Gallery forest
Savanna
Issue DateMay-2006
PublisherElsevier
CitationSoil Biology and Biochemistry 38(5): 1132-1138 (2006)
AbstractBy definition ‘ecosystem engineers’ are those organisms capable to modify physically the environment by producing ‘biogenic’ structures (BS). Large macroinvertebrates like termites, earthworms and ants produce BS with distinguishable physico-chemical properties. We measured total Corg, View the MathML source and View the MathML source contents in the BS produced by two species of Neotropical termites (subfamily Nasutermitinae) in a gallery forest (GF) of the Eastern Plains of Colombia. We sampled from the top of the BS to the edge at proportional distances, i.e. 20–100% for the largest BS in the soil surface and 50–100% for the smallest arboricole BS. Control soil was sampled 1 m apart from the BS. Values of total Corg were high in the BS produced by Nasutitermes sp1 (epigeic mound), while a high N mineralization process was observed in the same BS and in the Nasutitermes sp2 arboreal nest. The role of these two ecosystem engineers in nutrient cycling is discussed.
Publisher version (URL)http://dx.doi.org/10.1016/j.soilbio.2005.09.026
URIhttp://hdl.handle.net/10261/88227
DOI10.1016/j.soilbio.2005.09.026
ISSN0038-0717
Appears in Collections:(IPE) Artículos
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