Search:

	Andrea Lloyd
	Telephone (primary): (802) 443-3165 Telephone (secondary): Fax: (802) 443-2072 E-mail1 (primary): lloyd@middlebury.edu E-mail2 (secondary): Web URL: https://seguecommunity.middlebury.edu/sites/lloyd Address: Department of Biology Middlebury College Middlebury, VT 05753 United States

Official position at address above:	Bonanza Creek LTER Personnel
Educational Institutions attended:	PhD, 1996, Ecology and Evolutionary Biology, University of Arizona M.S., 1993, Biology and Wildlife, Univeristy of Alaska B.A., 1989, Geography, Dartmouth College
Roles/Affiliations:	Institute of Arctic Biology

Study Areas

Core Areas:	Disturbance
Categories:	Climate Disturbance Stand Structure Vegetation
Keywords:	dendrochronology fire history paleoecology stand history treeline

Datasets

Estimates of White Spruce density at two elevations from 1600-present

Population dynamics across latitudes of black spruce at its northern limit in the Brooks Range, Alaska

Recruitment of black and white spruce in the Brooks Range, Alaska

Soil Ph at black spruce sites at its northern limit in the Brooks Range, Alaska

Standardized ring-width chronologies for white and black spruce at three sites in the southern Brooks Range, Alaska

Tree densities of black and white spruce in the Brooks Range, Alaska

Publications (14)

Journal Articles:

Lloyd, A.H. and C. L. Fastie. 2002 Spatial and temporal variability in the growth and climate response of treeline trees in Alaska. Climatic Change 52:481-509.

Fastie, C.L., A.H. Lloyd and P. Doak. 2003 Fire history and postfire forest development in an upland watershed of interior Alaska. Journal Of Geophysical Research 108(D1):8150. doi:10.1029/2001JD000570.

Lloyd, A. H. and C. L. Fastie. 2003 Recent changes in treeline forest distribution and structure in interior Alaska. Ecoscience 10:176-185.

Lloyd, A.H., K. Yoshikawa, C.L. Fastie, L. Hinzman, and M. Fraver. 2003 Effects of permafrost degradation on woody vegetation at arctic treeline on the Seward Peninsula, Alaska. Permafrost and Periglacial Processes 14:93-102. DOI: 10.1002/ppp.446.

Lloyd, A.H., T.S. Rupp, C.L. Fastie and A.M. Starfield. 2003 Patterns and dynamics of treeline advance on the Seward Peninsula, Alaska. Journal of Geophysical Research 108(D2):8161. 10.1029/2001JD000852.

Epstein, H.E., J. Beringer, W.A. Gould, A.H. Lloyd, C.D. Thompson, F.S. Chapin, III, G.J. Michaelson, C.L. Ping, T.S. Rupp, and D.A. Walker. 2004 The nature of spatial transitions in the Arctic. ournal of Biogeography 31(12), 1917-1933.

Chapin, F.S., III, M. Sturm, M.C. Serreze, J.P McFadden, J.R. Key, A.H. Lloyd, A.D. McGuire, T.S. Rupp, A.H. Lynch, J.P Schimel, J. Beringer, W.L. Chapman, H.E. Epstein, E.S. Euskirchen, L.D. Hinzman, G. Jia, C.L. Ping, K.D. Tape, C.D.C. Thompson, D.A. Walker, and J.M. Welker. 2005 Role of Land-Surface Changes in Arctic Summer Warming. Science. Published online September 22 2005;10.1126/science.1117368 (Science Express Reports)

Hinzman, L., N. Bettez, W.R. Bolton, F.S. Chapin III, M. Dyurgerov, C. Fastie, B. Griffith, R.D. Hollister, A. Hope, H.P. Huntington, A. Jensen, G.J. Jia, T. Jorgenson, D.L. Kane, D.R. Klein, G. Kofinas, A. Lynch, A. Lloyd, A.D. McGuire, F. Nelson, W.C. Oechel, T. Osterkamp, C. Racine, V. Romanovsky, R. Stone, D. Stow, M. Sturm, C.E. Tweedie, G. Vourlitis, M. Walker, D. Walker, P.J. Webber, J. Welker, K. Winker, and K. Yoshikawa. 2005 Evidence and implications of recent climate change in northern Alaska and other arctic regions. Climatic Change 72(3)251-298

Lloyd, A.H. 2005 Ecological histories, ecological futures: what recent changes at treeline reveal about the future. Ecology. 86(7):1687-1695.

Lloyd, A.H., A.E. Wilson, C. L. Fastie, R. M. Landis. 2005 Population dynamics of black and white spruce in the southern Brooks Range, Alaska. Canadian Journal of Forest Research. Canadian Journal of Forest Research 35(9):2073-2081.

Lloyd, A.H. and A.G. Bunn. 2007 Response of the circumpolar boreal forest to 20th century climate variability. Environmental Research Lettera (2007) 2: 045013.

Lloyd, A.H., C.L. Fastie, and H. Eisen. 2007 Fire and substrate interact to control the northern range limit of black spruce (Picea mariana) in Alaska. Canadian Journal of Forest Research. 2007.

Books:

Book Chapters:

Chapin, F.S., III, A.D. McGuire, R.W. Ruess, M.W. Walker, R. Boone, M. Edwards, B. Finney, L.D. Hinzman, J. B. Jones, G.P. Juday, E.S. Kasischke, K. Kielland, A.H. Lloyd, M.W. Oswood, C.-L. Ping, E. Rexstad, V. Romanovsky, J. Schimel, E. Sparrow, B. Sveinbjornsson, D.W. Valentine, K. Van Cleve, D.L. Verbyla, L.A. Viereck, R.A. Werner, T.L. Wurtz, and J. Yarie.. 2006. Summary and synthesis: Past and future changes in the Alaskan boreal forest. Pages 332-338 in F.S. Chapin, III, M. Oswood, K. Van Cleve, L.A. Viereck, and D.L. Verbyla (Eds.) Alaska's Changing Boreal Forest. Oxford University Press, New York.

Lloyd, A. H., M. E. Edwards, B. P. Finney, J. A. Lynch, V. Barber, and N. H. Bigelow. 2006. Holocene development of the Alaskan boreal forest. Pages 62-78 in F. S. Chapin, III, M. W. Oswood, K. Van Cleve, L. A. Viereck, and D. L. Verbyla, editors. Alaska's Changing Boreal Forest. Oxford University Press, New York.

Conference Proceedings:

Report:

Thesis and Dissertations:


	Data Policies \| Webmaster

The Bonanza Creek LTER, including this website, is supported by the National Science Foundation through awards DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629 and by the USDA Forest Service, Pacific Northwest Research Station through agreement number RJVA-PNW-01-JV-11261952-231. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporting agencies or the program as a whole.

© Bonanza Creek LTER, 2009.
Last modified 22-Nov-09
UAF is an affirmative action/equal opportunity employer and educational institution.
This site is a member of the LTER Network.

Disclaimer

Andrea Lloyd