Award Abstract # 0080382
LTER: Biodiversity, Disturbance and Ecosystem Functioning at the Prairie-Forest Border

NSF Org: DEB
Division Of Environmental Biology
Recipient: REGENTS OF THE UNIVERSITY OF MINNESOTA
Initial Amendment Date: October 27, 2000
Latest Amendment Date: July 20, 2006
Award Number: 0080382
Award Instrument: Continuing Grant
Program Manager: Henry L. Gholz
DEB  Division Of Environmental Biology
BIO  Directorate for Biological Sciences
Start Date: October 15, 2000
End Date: September 30, 2007 (Estimated)
Total Intended Award Amount: $4,200,000.00
Total Awarded Amount to Date: $4,561,563.00
Funds Obligated to Date: FY 2001 = $755,000.00
FY 2002 = $752,000.00
FY 2003 = $762,000.00
FY 2004 = $766,600.00
FY 2005 = $749,963.00
FY 2006 = $776,000.00
History of Investigator:
  • David Tilman (Principal Investigator)
     tilman@lter.umn.edu
  • Peter Reich (Co-Principal Investigator)
  • Sarah Hobbie (Co-Principal Investigator)
Recipient Sponsored Research Office: University of Minnesota-Twin Cities
 2221 UNIVERSITY AVE SE STE 100
 MINNEAPOLIS
 MN  US  55414-3074
(612)624-5599
Sponsor Congressional District: 05
Primary Place of Performance: University of Minnesota-Twin Cities
 2221 UNIVERSITY AVE SE STE 100
 MINNEAPOLIS
 MN  US  55414-3074
Primary Place of Performance
Congressional District:		 05
Unique Entity Identifier (UEI): KABJZBBJ4B54
Parent UEI:
NSF Program(s): Population & Community Ecology,
ECOSYSTEM STUDIES,
LONG TERM ECOLOGICAL RESEARCH,
ERE General,
Ecosystem Science,
BROADENING PARTICIPATION
Primary Program Source: 01000102DB NSF RESEARCH & RELATED ACTIVIT
app-0102 
app-0103 
app-0104 
app-0105 
app-0106 
Program Reference Code(s): 1195, 5416, 7298, 9169, 9177, 9178, 9251, EGCH, SMET
Program Element Code(s): 112800, 118100, 119500, 730400, 738100, 748700
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.074

ABSTRACT

This is a renewal request of the Cedar Creek Natural History Area Long-term Ecological Research project. The nine co-investigators of the Cedar Creek LTER are using theory with long-term experiments and observations to examine (1) controls of biodiversity, community assembly and ecosystem functioning in upland ecosystems at the prairie-forest boundary, (2) the effects of both biodiversity and community composition on ecosystem processes, and (3) the impacts of major perturbations - including climatic variation, nitrogen deposition, elevated CO2, predator suppression, and changes in fire frequency - on species composition, diversity and ecosystem functioning. The approach combines studies of numerous species on several trophic levels with studies of the ecosystem processes that they affect and that affect them. This work is designed to combine and synthesize the often disparate approaches of population, community, and ecosystem ecology. This work will build on an 18-year record of research at this site.
These studies focus on the various direct, indirect and feedback processes that control the composition, dynamics, and biodiversity of these grassland and savanna ecosystems, and on the effects of the composition and biodiversity of these ecosystems on their stability and functioning. Specifically, for the next six years, this team will continue and expand on five major sets of long-term research, including experimental and observational studies on biodiversity, nitrogen addition, fire frequency, trophic interactions, and successional dynamics and land use.
The results of many of these studies are relevant to society because they will provide a better understanding of the long-term impacts of human actions on ecosystems. For instance, this research will help elucidate the factors that control biodiversity and the effects of the loss of biodiversity on ecosystem functioning. Studies of the impacts of nitrogen addition, of elevated CO2, of fire frequency, and of changes in trophic structure all address issues related to major ways that humans are impacting the environment.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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(Showing: 1 - 10 of 224)
Avis, P. G., D. J. McLaughlin, B. C. Dentinger and P. B. Reich "Long-term increase in nitrogen supply alters above- and belowground ectomycorrhizal communities and increases the dominance of Russula spp. in a temperate oak savanna" New Phytologist , v.160 , 2003 , p.239
Bakalar, N. "Biodiversity Aids Productivity" Discover , v.28 , 2007 , p.53
Bakker, ES; Ritchie, ME; Olff, H; Milchunas, DG; Knops, JMH "Herbivore impact on grassland plant diversity depends on habitat productivity and herbivore size" ECOLOGY LETTERS , v.9 , 2006 , p.780 View record at Web of Science 10.1111/j.1461-0248.2006.00925.
Barnes, CW; Kinkel, LL; Groth, JV "Spatial and temporal dynamics of Puccinia andropogonis on Comandra umbellata and Andropogon gerardii in a native prairie" CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE , v.83 , 2005 , p.1159 View record at Web of Science 10.1139/b05-08
Bassirirad, H., J.V.H. Constable, J. Lussenhop, B.A. Kimball, R.J. Norby, W.C. Oechel, P.B. Reich, W.H. Schlesinger, S. Zitzer, H.L. Sehtiya, S. Salim "Widespread foliage 15N depletion under elevated CO2: inferences for the nitrogen cycle" Global Change Biology , v.9 , 2003 , p.1
Bolstad, P. V., P. B. Reich and T. Lee "Rapid temperature acclimation of leaf respiration rates in Quercusalba and Quercus rubra" Tree Physiology , v.23 , 2003 , p.969
Bradley, K; Drijber, RA; Knops, J "Increased N availability in grassland soils modifies their microbial communities and decreases the abundance of arbuscular mycorrhizal fungi" SOIL BIOLOGY & BIOCHEMISTRY , v.38 , 2006 , p.1583 View record at Web of Science 10.1016/j.soilbio.2005.11.01
Bradley, KL; Damschen, EI; Young, LM; Kuefler, D; Went, S; Wray, G; Haddad, NM; Knops, JMH; Louda, SM "Spatial heterogeneity, not visitation bias, dominates variation in herbivory" ECOLOGY , v.84 , 2003 , p.2214 View record at Web of Science
Bradley, K. L., E. I. Damschen, L. M. Young, S. Went, G. Wray, D. Kuefler, N. M. Haddad, J. M. H. Knops and S. M. Louda "The herbivory uncertainty principle revisited" Ecology , v.84 , 2003 , p.2214
Bradley, K., R. Drijber and J. Knops "Examining the roles of plant species and nitrogen in the structure and function of microbial communities" Center of Grassland Studies Newsletter , v.8 , 2002 , p.1
Bunker, DE; Naeem, S "Species diversity and ecosystem functioning" SCIENCE , v.312 , 2006 , p.846 View record at Web of Science
(Showing: 1 - 10 of 224)

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