An assessment of Pinus contorta seed production in British Columbia: Geographic variation and dynamically-downscaled climate correlates from the Canadian Regional Climate Model

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dc.contributor.authorLew, Alicia
dc.contributor.authorvon Aderkas, Patrick
dc.contributor.authorBerland, Anne
dc.contributor.authorCurry, Charles L.
dc.contributor.authorLacourse, Terri
dc.contributor.authorTencer, Bárbara
dc.contributor.authorWeaver, Andrew
dc.date.accessioned2018-01-30T23:47:48Z
dc.date.available2018-01-30T23:47:48Z
dc.date.copyright2017en_US
dc.date.issued2017-04
dc.description.abstractThe ecological and economic importance of lodgepole pine (Pinus contorta Douglas ex Louden) in British Columbia (BC) has heightened interest in the adaptability and effective management of the species,especially as climate changes. The relationship between climate and the seed production of natural populations is a key management issue that has yet to be assessed. The purpose of this study is to determine if variation in P. contorta seed yield is related to the climate of BC.Regional differences in the seed production of lodgepole pine were examined using 1924 archived seedlot collections across 18 different natural stand seed planning zones (SPZs) in BC. The relationship between climate variation and the seed production of P. contorta was then evaluated using dynamically-downscaled output from the Canadian Regional Climate Model (CRCM). Seed production is relatively consistent across SPZs spanning a wide range of climate regimes, with the exception of Nass Skeena Transition (NST) where seed yield is an order of magnitude higher than else where. Significant temporal correlations between overall trends in seed production and both temperature and precipitation were found using the CRCM output. However, only three of the 18 SPZs showed a significant overall trend in mean annual seed yield based on cone collections made between 1963 and2013, suggesting that the reproductive capacity of natural populations is well adapted to decadal-scale climate change. Tolerance to significant variation in climate likely plays an important role in explaining the ability of this species to thrive well outside its natural range.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipCRCM simulations were conducted by Michel Giguèreat Ouranos Consortium and at the University of Victoria as part of the Natural Sciences and Engineering Research Council of Canada’s(NSERC) −CRD project, Dynamical Downscaling of Western and Eastern Canadian Hydroclimate, with infrastructure funding from the Canadian Foundation for Innovation and the British Columbia Knowledge Development Fund. The authors are grateful for funding obtained through the NSERC’s CREATE Program in Interdisciplinary Climate Science, Discovery Grant Program and PGS Program.en_US
dc.identifier.citationLew, A., von Aderkas, P., Berland, A., Curry, C.L., Lacourse, T., Tencer, B. & Weaver, A. (2017). An assessment of Pinus contorta seed production in British Columbia: Geographic variation and dynamically-downscaled climate correlates from the Canadian Regional Climate Model. Agricultural and Forest Meteorology, 236(April), 194-210. https://doi.org/10.1016/j.agrformet.2016.12.013en_US
dc.identifier.urihttps://doi.org/10.1016/j.agrformet.2016.12.013
dc.identifier.urihttp://hdl.handle.net/1828/9024
dc.language.isoenen_US
dc.publisherAgricultural and Forest Meteorologyen_US
dc.subjectLodgepole pineen_US
dc.subjectSeed yielden_US
dc.subjectClimateen_US
dc.subjectBritish Columbiaen_US
dc.subjectSeed planning zonesen_US
dc.subjectNatural populationsen_US
dc.titleAn assessment of Pinus contorta seed production in British Columbia: Geographic variation and dynamically-downscaled climate correlates from the Canadian Regional Climate Modelen_US
dc.typeArticleen_US

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