caa a22 4500 467885680 CHVBK 20180406152733.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10021-006-0008-2 doi (NATIONALLICENCE)springer-10.1007/s10021-006-0008-2 Genetic Identity of Populus tremuloides Litter Influences Decomposition and Nutrient Release in a Mixed Forest Stand [Elektronische Daten] [Michael Madritch, Jack Donaldson, Richard Lindroth] Recent research has shown that genetic variation can directly impact community and ecosystem level processes. Populus tremuloides (trembling aspen) is an extremely widespread and genetically diverse tree species important to many North American forest ecosystems. Using leaf litter from five genotypes grown in a common garden under two nutrient treatments, we tracked litter decomposition in a natural aspen stand for 1 year. Here we show that aspen leaf litter decomposes and releases carbon, nitrogen, and sulfur in relation to its genetic identity. In a secondary experiment, we show that the genetic diversity of aspen litter mixtures can influence decomposition, however weakly so. Overall, nutrient treatments influenced leaf litter decomposition the most, followed by genetic identity, and then by genetic diversity (if at all in some cases). In this widespread, genetically diverse, and dominant species, genetic variation within a single species is important to ecosystem functioning. The relatively weak effect of genetic diversity on the processes measured here does not preclude its importance to ecosystem functioning, but does suggest that genetic identity and composition are more important than genetic diversity per se. Springer Science+Business Media, Inc., 2006 genotype nationallicence tannin nationallicence intraspecific genetic variation nationallicence Madritch Michael Department of Entomology, University of Wisconsin, 237 Russell Labs, 1630 Linden Drive, 53706-1598, Madison, Wisconsin, USA aut Donaldson Jack Department of Entomology, University of Wisconsin, 237 Russell Labs, 1630 Linden Drive, 53706-1598, Madison, Wisconsin, USA aut Lindroth Richard Department of Entomology, University of Wisconsin, 237 Russell Labs, 1630 Linden Drive, 53706-1598, Madison, Wisconsin, USA aut Ecosystems Springer-Verlag; www.springer-ny.com 9/4(2006-06-01), 528-537 1432-9840 9:4<528 2006 9 10021 https://doi.org/10.1007/s10021-006-0008-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-006-0008-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Madritch Michael Department of Entomology, University of Wisconsin, 237 Russell Labs, 1630 Linden Drive, 53706-1598, Madison, Wisconsin, USA aut NATIONALLICENCE 700 1- Donaldson Jack Department of Entomology, University of Wisconsin, 237 Russell Labs, 1630 Linden Drive, 53706-1598, Madison, Wisconsin, USA aut NATIONALLICENCE 700 1- Lindroth Richard Department of Entomology, University of Wisconsin, 237 Russell Labs, 1630 Linden Drive, 53706-1598, Madison, Wisconsin, USA aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag; www.springer-ny.com 9/4(2006-06-01), 528-537 1432-9840 9:4<528 2006 9 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer