Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations
Our goal was to quantify tree- and branch-level components of growth response to three silvicultural treatments (STs), and weevil incidence in white pine ( Pinus strobus L.) from large, central populations in Ontario (ON) versus small, isolated populations in Newfoundland (NL). Light levels were 100...
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2009
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crcansciencepubl:10.1139/x08-153 2024-06-23T07:54:47+00:00 Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations Major, John E. Mosseler, Alex Barsi, Debby C. Clouthier, Amanda Campbell, Moira 2009 http://dx.doi.org/10.1139/x08-153 http://www.nrcresearchpress.com/doi/full-xml/10.1139/X08-153 http://www.nrcresearchpress.com/doi/pdf/10.1139/X08-153 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 39, issue 1, page 12-25 ISSN 0045-5067 1208-6037 journal-article 2009 crcansciencepubl https://doi.org/10.1139/x08-153 2024-06-06T04:11:14Z Our goal was to quantify tree- and branch-level components of growth response to three silvicultural treatments (STs), and weevil incidence in white pine ( Pinus strobus L.) from large, central populations in Ontario (ON) versus small, isolated populations in Newfoundland (NL). Light levels were 100%, 42.0%, and 20.4% transmittance for the full-sun, intermediate-shade, and high-shade STs. After 8 years, the overall incidence of weevil infestation was 42.1%, 23.4%, and 13.7% for the full-sun, intermediate-shade, and high-shade STs, respectively (P < 0.001). Weevil impact on total height and volume averaged –13.2% and –11.8%. Analysis of dominant lateral shoots showed that ON populations had 32% longer shoots than the NL populations. Bud set difference was a primary determinant of shoot-length growth differences between regions: Julian days 171 and 184 for the NL and ON populations, respectively. The primary determining factors related to shoot length were the number of needle bundles and region, driven by light levels and day length, respectively, and the internode length, probably through inbreeding effects. Total height and diameter showed a positive curvilinear relationship to light level. To maximize fitness, NL conservation strategies should also now consider introducing adaptive trait variation in the context of anticipated climate change. Article in Journal/Newspaper Newfoundland Canadian Science Publishing Canadian Journal of Forest Research 39 1 12 25 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
description |
Our goal was to quantify tree- and branch-level components of growth response to three silvicultural treatments (STs), and weevil incidence in white pine ( Pinus strobus L.) from large, central populations in Ontario (ON) versus small, isolated populations in Newfoundland (NL). Light levels were 100%, 42.0%, and 20.4% transmittance for the full-sun, intermediate-shade, and high-shade STs. After 8 years, the overall incidence of weevil infestation was 42.1%, 23.4%, and 13.7% for the full-sun, intermediate-shade, and high-shade STs, respectively (P < 0.001). Weevil impact on total height and volume averaged –13.2% and –11.8%. Analysis of dominant lateral shoots showed that ON populations had 32% longer shoots than the NL populations. Bud set difference was a primary determinant of shoot-length growth differences between regions: Julian days 171 and 184 for the NL and ON populations, respectively. The primary determining factors related to shoot length were the number of needle bundles and region, driven by light levels and day length, respectively, and the internode length, probably through inbreeding effects. Total height and diameter showed a positive curvilinear relationship to light level. To maximize fitness, NL conservation strategies should also now consider introducing adaptive trait variation in the context of anticipated climate change. |
format |
Article in Journal/Newspaper |
author |
Major, John E. Mosseler, Alex Barsi, Debby C. Clouthier, Amanda Campbell, Moira |
spellingShingle |
Major, John E. Mosseler, Alex Barsi, Debby C. Clouthier, Amanda Campbell, Moira Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations |
author_facet |
Major, John E. Mosseler, Alex Barsi, Debby C. Clouthier, Amanda Campbell, Moira |
author_sort |
Major, John E. |
title |
Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations |
title_short |
Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations |
title_full |
Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations |
title_fullStr |
Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations |
title_full_unstemmed |
Impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of Pinus strobus from large and small populations |
title_sort |
impact of three silvicultural treatments on weevil incidence, growth, phenology, and branch-level dynamics of pinus strobus from large and small populations |
publisher |
Canadian Science Publishing |
publishDate |
2009 |
url |
http://dx.doi.org/10.1139/x08-153 http://www.nrcresearchpress.com/doi/full-xml/10.1139/X08-153 http://www.nrcresearchpress.com/doi/pdf/10.1139/X08-153 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Forest Research volume 39, issue 1, page 12-25 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/x08-153 |
container_title |
Canadian Journal of Forest Research |
container_volume |
39 |
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1 |
container_start_page |
12 |
op_container_end_page |
25 |
_version_ |
1802647049440591872 |