Elevated atmospheric CO 2 alters leaf litter quality for stream ecosystems: an in situ leaf decomposition study
dc.contributor.author | Tuchman, Nancy C. | en_US |
dc.contributor.author | Wahtera, Kirk A. | en_US |
dc.contributor.author | Wetzel, Robert G. | en_US |
dc.contributor.author | Teeri, James A. | en_US |
dc.date.accessioned | 2006-09-08T20:50:42Z | |
dc.date.available | 2006-09-08T20:50:42Z | |
dc.date.issued | 2003-03 | en_US |
dc.identifier.citation | Tuchman, Nancy C.; Wahtera, Kirk A.; Wetzel, Robert G.; Teeri, James A.; (2003). "Elevated atmospheric CO 2 alters leaf litter quality for stream ecosystems: an in situ leaf decomposition study." Hydrobiologia 495 (1-3): 203-211. <http://hdl.handle.net/2027.42/42898> | en_US |
dc.identifier.issn | 0018-8158 | en_US |
dc.identifier.issn | 1573-5117 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42898 | |
dc.description.abstract | Trembling aspen ( Populus tremuloides ) seedlings were exposed to both elevated (720 ppm; ELEV) and ambient (370 ppm; AMB) concentrations of atmospheric CO 2 for a 6-month growing season after which senesced leaves were collected and analyzed for differences in chemical composition. Elevated levels of atmospheric CO 2 significantly increased total phenolic compounds, lignin levels, and C:N ratios, while decreasing the concentration of foliar nitrogen. ELEV and AMB leaf aggregates were placed into a headwater stream in the autumn of 1999 for 4 months to assess microbial activity, macroinvertebrate colonization, and leaf decomposition rates. Elevated CO 2 significantly reduced 30 day microbial community respiration (−36.8%), and percent leaf mass remaining after 30 and 120 days of stream incubation (−9.4% and −13%, respectively). Low resolution of the experimental design for testing macroinvertebrate responses to altered leaves, including the free movement of macroinvertebrates among leaf aggregates, may explain the lack of treatment effect on invertebrate distribution between AMB and ELEV leaves. Elevated CO 2 -induced increases in leaf litter total phenolic compounds, lignins, and C:N appear to have negative effects on leaf decomposition, especially in the early stages of the decay process where microorganisms play a dominant role. | en_US |
dc.format.extent | 289594 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers; Springer Science+Business Media | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Ecology | en_US |
dc.subject.other | Hydrobiology | en_US |
dc.subject.other | Atmospheric CO 2 | en_US |
dc.subject.other | Leaf Litter | en_US |
dc.subject.other | Leaf Chemistry | en_US |
dc.subject.other | Decomposition | en_US |
dc.subject.other | Microbes | en_US |
dc.subject.other | Invertebrates | en_US |
dc.title | Elevated atmospheric CO 2 alters leaf litter quality for stream ecosystems: an in situ leaf decomposition study | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Biology, Loyola University Chicago, 6525 North Sheridan Road, Chicago, IL, 60626, U.S.A.; Biological Station, The University of Michigan, Pellston, MI, 49769, U.S.A. | en_US |
dc.contributor.affiliationum | Department of Biology, Loyola University Chicago, 6525 North Sheridan Road, Chicago, IL, 60626, U.S.A.; Biological Station, The University of Michigan, Pellston, MI, 49769, U.S.A. | en_US |
dc.contributor.affiliationum | Biological Station, The University of Michigan, Pellston, MI, 49769, U.S.A. | en_US |
dc.contributor.affiliationother | Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC, 27599, U.S.A | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42898/1/10750_2004_Article_5124449.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1023/A:1025493018012 | en_US |
dc.identifier.source | Hydrobiologia | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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