Bonanza Creek LTER
Bonanza Creek LTER
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Jill Johnstone

Jill Johnstone, Dr.

Telephone (primary): (306) 966-4421
Telephone (secondary):
Fax: (306) 966-4461
E-mail1 (primary): jill.johnstone@usask.ca
E-mail2 (secondary):
Web URL: www.usask.ca/biology/johnstone

Address:
Department of Biology; University of Saskatchewan; 112 Science Place
Saskatoon, Saskatchewan S7N 5E2
Canada

Official position at
address above:
Assistant Professor
Educational Institutions
attended:
May, 1992. B.A. - Northern Studies, Middlebury College, Middlebury, Vermont
May, 1995. M.Sc. - Biogeography, University of British Columbia, Vancouver, B.C., Canada
May, 1995. Ph.D. - Ecology, University of Alaska, Fairbanks
Roles/Affiliations: Biology & Wildlife Department
Institute of Arctic Biology

Study Areas

Core Areas: Disturbance
Populations
Categories: Disturbance
Succession
Vegetation
Keywords: black spruce
fires
post-fire regeneration
seedling regeneration
succession
successional trajectories
successional vegetation

Datasets

  • Black spruce seed counts from seed rain traps in the 2004 burns off the Steese, Taylor, and Dalton Highways, collected in 2005-2007.
  • Black spruce seed viability from seed rain traps in the 2004 burns off the Steese, Taylor, and Dalton Highways, collected in 2005-2007.
  • Environmental and stand data for sites located in the 2004 burns off the Steese, Taylor, and Dalton Highways, collected in 2005-2007
  • Organic layer data from burned black spruce stands for the effects of variations in post-fire organic layer thickness studies in the Delta Junction region, 1995-2003
  • Post-fire recovery in the 2004 burns of interior Alaska: Densities of tree seedlings measured in 2008 by Joint Fire Science Program
  • Tree regeneration after fire: Aspen removal experiment, aboveground biomass of seedlings from sown seed
  • Tree regeneration after fire: Aspen removal experiment, Aspen stem numbers, biomass and canopy height
  • Tree regeneration after fire: Aspen removal experiment, biomass of 2002 growth of transplanted seedlings
  • Tree regeneration after fire: Aspen removal experiment, Counts of seedling germination
  • Tree regeneration after fire: Aspen removal experiment, organic layer depth measurments 2001, 2002
  • Tree regeneration after fire: Aspen removal experiment, soil moisture analysis 2002
  • Tree regeneration after fire: Aspen removal experiment, soil moisture and pH 2001
  • Tree regeneration after fire: Aspen removal experiment, vegetation cover 2000 - 2002
  • Tree regeneration after fire: Delta 1994 burn surveys, Data from one soil sample/transect to obtain bulk density.
  • Tree regeneration after fire: Delta 1994 burn surveys, data to develop allometric equations re. seedling height or diameter to dry biomass
  • Tree regeneration after fire: Delta 1994 burn surveys, general site data
  • Tree regeneration after fire: Delta 1994 burn surveys, live aspen seedling diameters
  • Tree regeneration after fire: Delta 1994 burn surveys, live seedling counts, by species
  • Tree regeneration after fire: Delta 1994 burn surveys, live spruce seedling diameters
  • Tree regeneration after fire: Delta 1994 burn surveys, pre-fire stem counts and basal areas, for black spruce
  • Tree regeneration after fire: Delta 1994 burn surveys, pre-fire stem counts and basal areas, for species other than black spruce
  • Tree regeneration after fire: Delta 1994 burn surveys, Salix live seedling diameters
  • Tree regeneration after fire: Delta 1994 burn surveys, thickness of different soil layers
  • Tree regeneration after fire: Effects of burn severity, CPCRW vegetative cover analysis
  • Tree regeneration after fire: Effects of burn severity, CPCRW soil analysis
  • Tree regeneration after fire: Effects of burn severity, Delta soil analysis
  • Tree regeneration after fire: Effects of burn severity, Delta vegetative cover analysis
  • Tree regeneration after fire: Effects of burn severity, germinated seedlings analysis
  • Tree regeneration after fire: Effects of burn severity, seedling germination analysis
  • Tree regeneration after fire: Effects of burn severity, transplanted seedlings analysis
  • Tree regeneration after fire: Wickersham Dome long-term vegetation study, aspen height data
  • Tree regeneration after fire: Wickersham Dome long-term vegetation study, birch height data
  • Tree regeneration after fire: Wickersham Dome long-term vegetation study, bl. spruce cone analysis
  • Tree regeneration after fire: Wickersham Dome long-term vegetation study, bl. spruce height data
  • Tree regeneration after fire: Wickersham Dome long-term vegetation study, shrub height data
  • Tree regeneration after fire: Yukon Lodgepole Pine Survey, pre fire analysis
  • Tree regeneration after fire: Yukon Lodgepole Pine Surveys, mineral soil analysis
  • Tree regeneration after fire: Yukon Lodgepole Pine Surveys, organic soil analysis
  • Tree regeneration after fire: Yukon Lodgepole Pine Surveys, seedlings analysis
  • Tree regeneration after fire: Yukon Lodgepole Pine Surveys, tree age analysis
  • Yearly Seedfall Summary at Bonanza Creek Experimental Forest Control Plots (1958 - Present)

  • Publications (15)

    Journal Articles:

    Johnstone, J.F. and F.S. Chapin III. 2003 Non-equilibrium succession dynamics indicate continued northern migration of lodgepole pine. Global Change Biology 9:1401-1409.

    Chapin, F.S. III, T.V. Callaghan, Y. Bergeron, M. Fukuda, J.F. Johnstone, G. Juday, and S.A. Zimov. 2004 Global change and the boreal forest: Thresholds, shifting states or gradual change? Ambio 33:361-365.

    Johnstone, J.F., F.S. Chapin III, J. Foote, S. Kemmett, K. Price and L. Viereck. 2004 Decadal observations of tree regeneration following fire in boreal forests. Canadian Journal of Forest Research 34: 267-273.

    Johnstone, J. F., and E. S. Kasischke. 2005 Stand-level effects of soil burn severity on post-fire regeneration in a recently-burned black spruce forest. Canadian Journal of Forest Research 35: 2151-2163.

    Johnstone, J.F. 2005 Effects of aspen (Populus tremuloides) sucker removal on postfire conifer regeneration in central Alaska. Canadian Journal of Forest Research 35:483-486.

    Kasischke, E. S., and J. F. Johnstone. 2005 Variation in postfire organic layer thickness in a black spruce forest complex in interior Alaska and its effects on soil temperature and moisture. Canadian Journal of Forest Research 35: 2164-2177.

    Chapin, F.S., III, M.D. Robards, H.P. Huntington, J.F. Johnstone, S.F. Trainor, G.P Kofinas R.W. Ruess, N. Fresco, D.C. Natcher, and R.L. Naylor. 2006 Directional changes in ecological communities and social-ecological systems: A framework for prediction based on Alaskan examples. American Naturalist 168:S36-S49

    Johnstone, J.F. and F.S. Chapin, III. 2006 Effects of soil burn severity on post-fire tree recruitment in boreal forest. Ecosystems 9:14-31.

    Johnstone, J.F. and F.S. Chapin, III. 2006 Fire interval effects on successional trajectory in the boreal forest of northwestern Canada. Ecosystems 9:268-277.

    Kasischke,Eric S., Bourgeau-Chavez, Laura L., and Johnstone, Jill F. 2007 Assessing spatial and temporal variations in surface soil moisture in fire-disturbed black spruce forests in Interior Alaska using spaceborne synthetic aperture radar imagery - Implications for post-fire tree recruitment. Remote Sensing of Environment; May2007, Vol. 108 Issue 1, p42-58

    Johnstone, J.F., L. Boby, E. Tissier, M. C. Mack, D. L. Verbyla, and X. Walker. 2009. Post-fire seed rain of black spruce, a semi-serotinous conifer, in forests of interior Alaska. Canadian Journal of Forest Research, in press.

    Johnstone, J.F., T.N. Hollingsworth, F.S. Chapin, III, and M.C. Mack. 2009 Changes in fire regime break the legacy lock on successional trajectories in Alaskan boreal forest. Global Change Biology. doi: 10.1111/j.1365-2486.2009.02051.x


    Books:


    Book Chapters:

    Chapin, F.S., III, L.A. Viereck, P. Adams, K. Van Cleve, C.L. Fastie, R.A. Ott, D. Mann, and J.F. Johnstone. 2006. Successional processes in the Alaskan boreal forest. Pages 100-120 In F.S. Chapin, III, M.W. Oswood, K. Van Cleve, L.A. Viereck, and D.L. Verbyla (Eds.) Alaska's Changing Boreal Forest. Oxford University Press, New York.


    Conference Proceedings:


    Report:

    Johnstone, Jill F.; Hollingsworth, Teresa N.; Chapin, F. Stuart, III.. 2008. A key for predicting postfire successional trajectories in black spruce stands of interior Alaska. Gen. Tech. Rep. PNW-GTR-767. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 37 p.


    Thesis and Dissertations:

    Johnstone, J.F. 2003. Fire and successional trajectories in boreal forest: Implications for response to a changing climate. Ph.D. Dissertation. University of Alaska Fairbanks. Fairbanks, AK, USA.


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    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
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