caa a22 4500 445384131 CHVBK 20180317143026.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10021-011-9439-5 doi (NATIONALLICENCE)springer-10.1007/s10021-011-9439-5 The Importance of Termites to the CH4 Balance of a Tropical Savanna Woodland of Northern Australia [Elektronische Daten] [Hizbullah Jamali, Stephen Livesley, Samantha Grover, Tracy Dawes, Lindsay Hutley, Garry Cook, Stefan Arndt] Termites produce methane (CH4) as a by-product of microbial metabolism of food in their hindguts, and are one of the most uncertain components of the regional and global CH4 exchange estimates. This study was conducted at Howard Springs near Darwin, and presents the first estimate of CH4 emissions from termites based on replicated in situ seasonal flux measurements in Australian savannas. Using measured fluxes of CH4 between termite mounds and the atmosphere, and between soil and the atmosphere across seasons we determined net CH4 flux within a tropical savanna woodland of northern Australia. By accounting for both mound-building and subterranean termite colony types, and estimating the contribution from tree-dwelling colonies it was calculated that termites were a CH4 source of +0.24kgCH4-Cha−1y−1 and soils were a CH4 sink of −1.14kgCH4-Cha−1y−1. Termites offset 21% of CH4 consumed by soil resulting in net sink strength of −0.90kgCH4-Cha−1y−1 for these savannas. For Microcerotermes nervosus (Hill), the most abundant mound-building termite species at this site, mound basal area explained 48% of the variation in mound CH4 flux. CH4 emissions from termites offset 0.1% of the net biome productivity (NBP) and CH4 consumption by soil adds 0.5% to the NBP of these tropical savannas at Howard Springs. Springer Science+Business Media, LLC, 2011 methane nationallicence termite mounds nationallicence soil methane oxidation nationallicence subterranean termites nationallicence hypogeal termites nationallicence Microcerotermes nervosus nationallicence Jamali Hizbullah Department of Forest and Ecosystem Science, The University of Melbourne, 500 Yarra Boulevard, 3121, Richmond, Victoria, Australia aut Livesley Stephen Department of Resource Management and Geography, The University of Melbourne, 500 Yarra Boulevard, 3121, Richmond, Victoria, Australia aut Grover Samantha Research Institute for the Environment and Livelihoods, Charles Darwin University, 0909, Darwin, Northern Territory, Australia aut Dawes Tracy CSIRO Ecosystem Sciences, PMB 44, 0822, Winnellie, Northern Territory, Australia aut Hutley Lindsay Research Institute for the Environment and Livelihoods, Charles Darwin University, 0909, Darwin, Northern Territory, Australia aut Cook Garry CSIRO Ecosystem Sciences, PMB 44, 0822, Winnellie, Northern Territory, Australia aut Arndt Stefan Department of Forest and Ecosystem Science, The University of Melbourne, 500 Yarra Boulevard, 3121, Richmond, Victoria, Australia aut Ecosystems Springer-Verlag 14/5(2011-08-01), 698-709 1432-9840 14:5<698 2011 14 10021 https://doi.org/10.1007/s10021-011-9439-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-011-9439-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jamali Hizbullah Department of Forest and Ecosystem Science, The University of Melbourne, 500 Yarra Boulevard, 3121, Richmond, Victoria, Australia aut NATIONALLICENCE 700 1- Livesley Stephen Department of Resource Management and Geography, The University of Melbourne, 500 Yarra Boulevard, 3121, Richmond, Victoria, Australia aut NATIONALLICENCE 700 1- Grover Samantha Research Institute for the Environment and Livelihoods, Charles Darwin University, 0909, Darwin, Northern Territory, Australia aut NATIONALLICENCE 700 1- Dawes Tracy CSIRO Ecosystem Sciences, PMB 44, 0822, Winnellie, Northern Territory, Australia aut NATIONALLICENCE 700 1- Hutley Lindsay Research Institute for the Environment and Livelihoods, Charles Darwin University, 0909, Darwin, Northern Territory, Australia aut NATIONALLICENCE 700 1- Cook Garry CSIRO Ecosystem Sciences, PMB 44, 0822, Winnellie, Northern Territory, Australia aut NATIONALLICENCE 700 1- Arndt Stefan Department of Forest and Ecosystem Science, The University of Melbourne, 500 Yarra Boulevard, 3121, Richmond, Victoria, Australia aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag 14/5(2011-08-01), 698-709 1432-9840 14:5<698 2011 14 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer