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Refereed
publications |
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Halpern, C. B., J. A. Antos, D. McKenzie, and A. M. Olson. 2016. Past tree influence and prescribed fire mediate biotic interactions and community reassembly in a grassland-restoration experiment. Journal of Applied Ecology 53:264-273. doi: 10.1111/1365-2664.12570 
Halpern, C. B., J. A. Antos, and L. M. Beckman. 2014. Vegetation recovery in slash-pile scars following conifer removal in a grassland restoration experiment. Restoration Ecology 22:731-740.
doi: 10.1111/rec.12130. Request reprint
Kremer, N. J., C. B. Halpern, and J. A. Antos. 2014. Conifer reinvasion of montane meadows following experimental tree removal and prescribed burning. Forest Ecology and Management 319:128-137. doi:
10.1016/j.foreco.2014.02.002. Request reprint
Case,
M. F., C. B. Halpern, and S. A. Levin. 2013. Contributions of gopher mound and casting disturbances to plant
community structure in a Cascade Range meadow complex. Botany 91:555-561. doi: 10.1139/cjb-2013-0023. Request reprint
Halpern,
C. B., R. D. Haugo, J. A. Antos, S. S. Kaas, and A. L. Kilanowski.
2012. Grassland restoration with and without fire: evidence
from a tree-removal experiment. Ecological Applications 22:425-441. doi:
10.1890/11-1061.1. PDF. Appendices
Rice,
J. M., C. B. Halpern, J. A. Antos, and J. A. Jones. 2012.
Spatio-temporal patterns of tree establishment are indicative of
biotic interactions during early invasion of a montane meadow. Plant
Ecology 213:555-568. doi: 10.1007/s11258-012-0021-9. Request reprint
Halpern,
C. B., J. A. Antos, J. M. Rice, R. D. Haugo, and N. L. Lang. 2010.
Tree invasion of a montane meadow complex: temporal trends, spatial
patterns, and biotic interactions. Journal of Vegetation Science
21:717-732. doi: 10.1111/j.1654-1103.2010.01183.x. Request reprint
Haugo,
R. D., and C. B. Halpern. 2010. Tree age and tree species
shape positive and negative interactions in a montane meadow. Botany
88:488-499. doi: 10.1139/B10-018. Request reprint
Jones,
C. C., C. B. Halpern, and J. Niederer. 2008. Plant succession
on gopher mounds in western Cascade meadows: consequences for species
diversity and heterogeneity. American Midland Naturalist 159:275-286. doi: 10.1674/0003-0031(2008)159[275:PSOGMI]2.0.CO;2. Request reprint
Haugo,
R. D., and C. B. Halpern. 2007. Vegetation responses to
conifer encroachment in a dry, montane meadow: a chronosequence
approach. Canadian Journal of Botany 85:285-298. doi: 10.1139/B07-024. PDF
Lang,
N. L., and C. B. Halpern. 2007. The soil seed bank of a
montane meadow: consequences of conifer encroachment and implications
for restoration. Canadian Journal of Botany 85:557-569. doi: 10.1139/B07-051. PDF |
Reports
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Celis, J. 2015. A trait based approach to understanding meadow species abundance over a conifer encroachment gradient. Page 3 in Northwest Oregon Ecology Group Newsletter ver. 14. PDF
Celis, J. 2015. Consequences of limited light availability on flower production of meadow communities in the Pacific Northwest USA. Pages 5-6 in Northwest Oregon Ecology Group Newsletter ver. 14. PDF
Halpern, C. B., J. A. Antos, and C. Friesen. 2013. Restoration of mountain meadows at the HJ Andrews Experimental Forest LTER. LTER Network News, Fall 2013, Vol. 26 No. 4.
Case,
M., and C. Halpern. 2012.
Gopher disturbance and plant community dynamics in montane meadows.
Pages 3-4 in Northwest Oregon Ecology Group Newsletter ver. 11.0.
PDF
McCain,
C., and C. B. Halpern. 2011. Tips on meadow restoration:
To seed or not to seed. Page 7 in Northwest Oregon Ecology Group
Newsletter ver. 10. PDF
Halpern,
C. B., and C. Friesen. 2010. Montane meadows in western
Oregon: Research and adaptive management at Bunchgrass Ridge. Pages
2-3 in Northwest Oregon Ecology Group Newsletter ver. 9. PDF
Joint
Fire Science Program. 2009. Restoring mountain meadows:
using fire, vegetation, and fuel management in western Oregon. Joint
Fire Science Program, Fire Science Brief, Issue 75.
PDF
Thompson,
J. 2007.
Mountain meadows—here today, gone tomorrow? Meadow science
and restoration. Science Findings Issue 94. PNW Research Station,
Portland, OR. PDF
Swanson,
F. J., C. B. Halpern, and J. H. Cissel. 2007.
Restoration of dry, montane meadows through prescribed fire, vegetation
and fuels management: A program of research and adaptive management
in western Oregon. Project 01C-3-3-10 Final Report to the Joint
Fire Science Program. 29 September 2007. PDF.
Executive
Summary
Halpern,
C. B., R. Haugo, N. Lang, J. Antos, and F. Swanson. 2005.
Restoration of montane meadows in western Oregon: Research and adaptive
management at Bunchgrass Ridge. Pages 4-5 in Northwest Oregon Ecology
Group Newsletter ver. 4. PDF |
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Theses
and dissertations |
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Celis, J. 2015. The role of intraspecific functional trait variation in the differential decline of meadow species following conifer encroachment. M.S. thesis. Oregon State University, Corvallis, OR. 66 p. Link
Case,
M. F. 2012. Gopher disturbance and plant community dynamics
in montane meadows. Senior thesis. Princeton University,
Princeton, NJ. 74 p. Poster
Pfeiffer,
V. W. 2012. Influence of spatial and temporal factors on
plants, pollinators and plant-pollinator interactions in montane
meadows of the western Cascades Range. M.S. thesis. Oregon State
University, Corvallis. 263 p. Link
Haugo,
R. D. 2010. Causes and consequences of conifer invasion
into Pacific Northwest grasslands. Ph.D. dissertation. University
of Washington, Seattle. 187 p. PDF
Rice,
J. M. 2009. Forest-meadow dynamics in the central western
Oregon Cascades: topographic, biotic, and environmental change effects.
Ph.D. dissertation. Oregon State University, Corvallis. 221 p. Link
Haugo,
R. D. 2006. Vegetation responses to conifer encroachment
in a dry, montane meadow: a chronosequence approach. M.S. thesis.
University of Washington, Seattle. 52 p. PDF
Lang,
N. L. 2006. The soil seed bank of an Oregon montane meadow:
consequences of conifer encroachment and implications for restoration.
M.S. thesis. University of Washington, Seattle. 58 p. PDF |
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Presentations
and posters |
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Celis, J. 2015. The role of intraspecific functional trait variation in the differential decline of meadow species following conifer encroachment. 2015 LTER All Scientists Meeting, Estes Park, CO.
Celis, J. 2015. A trait based approach to understanding meadow species abundance across a conifer encroachment gradient. Western Forestry Graduate Research Symposium, Oregon State University, Corvallis, OR.
Celis, J. 2015. The role of intraspecific functional trait variation in the differential decline of meadow species following conifer encroachment. M. S. thesis presentation. Oregon State University, Corvallis, OR. Presentation
Celis, J., F. A. Jones, and C. B. Halpern. 2015. Survival of meadow species in the face of tree encroachment: a functional trait approach. H. J. Andrews Experimental Forest Long-Term Ecological Research Program (LTER) Symposium, Oregon State University, Corvallis, OR. Poster
Beckman, L., and S. Ritz. 2014. Plant recovery in burn scars following tree removal from a Cascade Range Meadow. Final project poster, NSF Research Assistantships for High School Students (HJA-LTER). Poster
Case, M. F., C. B. Halpern, and S. A. Levin. 2013. Gopher-mound and casting disturbances contribute to plant community structure in a Cascade Range meadow complex. 98th Annual Meeting of the Ecological Society of America, Minneapolis, MN. Poster
Halpern,
C. B. 2010. Experiments in meadow restoration at Bunchgrass
Ridge. Presentation to USFS McKenzie River Ranger District, McKenzie
Bridge, OR. Presentation
Haugo, R. D., and C. B. Halpern. 2010. Restoration
of montane meadows following conifer invasion. University of Washington
Conservation Colloquium, Seattle, WA.
Haugo,
R. D., and C. B. Halpern. 2010. Restoration of western
Oregon montane meadows following conifer invasion. Society of Ecological
Restoration Northwest, Marysville, WA.
Haugo, R. D., and C. B. Halpern. 2009. Restoration
of western Oregon montane meadows following conifer invasion. 82nd
Annual Meeting of the Northwest Scientific Association, Seattle,
WA.
Haugo, R. D., C. B. Halpern, and N. L. Lang. 2008.
Bunchgrass Ridge: Understanding the past to guide the future. Back
to the Future: Northwest Oregon Ecology Group Information-Sharing
Workshop, Salem, OR. Presentation
Haugo,
R. D., and C. B. Halpern. 2008. Temporal dynamics of tree-herb
interactions in a montane meadow: effects of tree age and species.
93rd Annual Meeting of the Ecological Society of America,
Milwaukee, WI. Presentation
Hillstrom, S., and C. B. Halpern. 2008. Initial
effects of burn piles on vegetation and soil following conifer removal
from a montane meadow. 93rd Annual Meeting of the Ecological
Society of America, Milwaukee, WI. Presentation
Haugo,
R. D. 2006. Vegetation responses to conifer encroachment
in a dry, montane meadow: a chronosequence approach. M.S. thesis
presentation. University of Washington, Seattle. Presentation |
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Haugo,
R. D., and C. B. Halpern. 2006. Vegetation dynamics following
conifer encroachment in a dry, montane meadow, western Cascade Range.
Northwest Scientific Association, 79th Annual Meeting,
Boise, ID. Presentation
Haugo,
R. D., N. L. Lang, and C. B. Halpern. 2006. Conifer encroachment
of montane meadows: effects on vegetation, seed banks, and potential
for restoration. Ecology of Openings: Northwest Oregon Ecology Group
Information-Sharing Workshop, Salem, OR. Presentation
Lang,
N. L. 2006. The soil seed bank of an Oregon montane meadow:
consequences of conifer encroachment and implications for restoration.
M.S. thesis presentation. University of Washington, Seattle. Presentation
Halpern,
C. B., R. D. Haugo, N. L. Lang, J. A. Antos, K. M. Smith, F. J.
Swanson, and J. H. Cissel. 2005. Restoration of dry, montane
meadows through prescribed fire, vegetation and fuels management:
A program of research and adaptive management in western Oregon.
2005 Joint Fire Science Program Principal Investigator Workshop,
San Diego, CA. Poster
Haugo,
R. D. 2005. Hey, where'd all those tree comes from? Causes
and consequences of conifer invasion. 2005 Graduate Student Symposium,
College of Forest Resources, Seattle, WA.
Haugo,
R. D., and C. B. Halpern. 2005. Conifer encroachment in
a dry, montane meadow, western Cascade Range, OR. 78th
Annual Meeting of the Northwest Scientific Association, Corvallis,
OR. Presentation
Lang,
N. L. 2005. Seed bank dynamics of an Oregon montane meadow:
consequences of conifer invasion. 2005 Graduate Student Symposium,
College of Forest Resources, Seattle, WA.
Lang,
N. L., and C. B. Halpern. 2005. Soil seed bank dynamics
of an Oregon montane meadow: implications of conifer encroachment.
78th Annual Meeting of the Northwest Scientific Association,
Corvallis, OR.
Ma,
Z. 2005. Vegetation dynamics in a montane meadow: effects
of conifer encroachment. 8th Annual Undergraduate Research
Symposium, University of Washington, Seattle, WA. |
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