Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species.
Abstract Background/Question/Methods _Abies sachalinensis_ (Sakhalin Fir) and Picea glehnii (Glehn’s Spruce) are major components of the sub-boreal forests of Hokkaido, Japan. Similar Spruce-Fir forests can be found in many other places in the northern hemisphere and will probably be impacted by glo...
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crspringernat:10.1038/npre.2010.5298.1 2023-05-15T18:09:18+02:00 Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. Bontempo e Silva, Edgard Hara, Toshihiko Sumida, Akihiro Ono, Kiyomi 2010 http://dx.doi.org/10.1038/npre.2010.5298.1 http://www.nature.com/articles/npre.2010.5298.1.pdf http://www.nature.com/articles/npre.2010.5298.1 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/3.0/ https://creativecommons.org/licenses/by/3.0/ CC-BY Nature Precedings ISSN 1756-0357 Psychiatry and Mental health journal-article 2010 crspringernat https://doi.org/10.1038/npre.2010.5298.1 2022-01-04T12:51:43Z Abstract Background/Question/Methods _Abies sachalinensis_ (Sakhalin Fir) and Picea glehnii (Glehn’s Spruce) are major components of the sub-boreal forests of Hokkaido, Japan. Similar Spruce-Fir forests can be found in many other places in the northern hemisphere and will probably be impacted by global warming. Therefore, detailed knowledge of these species’ physiology and life-history strategies at different growth stages is important to understand present communities and to support reliable prediction of possible consequences of global climate change.Accordingly, the objective of this study was to establish relations between community dynamics, life-history strategies and photosynthetic adaptation of these species, on different developmental stages.The study is taking place on a sub-boreal forest plot in north Japan (N 44º 19’, E 142º 15’). Twenty shade-growing individuals of both species were divided into two height classes: seedlings, if height < 50cm; and saplings, if height > 100cm. The canopy coverage over each individual was assessed by analyzing hemispherical photography and average light incidence. Leaf pigments are being analyzed by chromatography. Light response curves and chlorophyll fluorescence are being measured seasonally, except in winter. Results are analyzed through General Linear Models. The study period was from spring 2009 to summer 2010. Results/Conclusions Results show an inversion of the photosynthetic adaptation between seedlings and saplings, and also between species. Picea seedlings and Abies saplings have greater total chlorophyll content and higher photosynthetic rates than Picea saplings and Abies seedlings. As a consequence, the superior competitor between similar sized individuals of both species appears to change between size-classes, with Abies presenting higher photosynthetic rates at the sapling class and Picea at the seedling class. Nevertheless, no significant growth has been observed in any of the groups until now. Results also disagree with some of the previously reported photosynthetic characteristics of these species, with Picea seedlings displaying more traits usually associated with shade adaptation than Abies seedlings. Article in Journal/Newspaper Sakhalin Springer Nature (via Crossref) Nature Precedings |
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Springer Nature (via Crossref) |
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English |
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Psychiatry and Mental health |
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Psychiatry and Mental health Bontempo e Silva, Edgard Hara, Toshihiko Sumida, Akihiro Ono, Kiyomi Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. |
topic_facet |
Psychiatry and Mental health |
description |
Abstract Background/Question/Methods _Abies sachalinensis_ (Sakhalin Fir) and Picea glehnii (Glehn’s Spruce) are major components of the sub-boreal forests of Hokkaido, Japan. Similar Spruce-Fir forests can be found in many other places in the northern hemisphere and will probably be impacted by global warming. Therefore, detailed knowledge of these species’ physiology and life-history strategies at different growth stages is important to understand present communities and to support reliable prediction of possible consequences of global climate change.Accordingly, the objective of this study was to establish relations between community dynamics, life-history strategies and photosynthetic adaptation of these species, on different developmental stages.The study is taking place on a sub-boreal forest plot in north Japan (N 44º 19’, E 142º 15’). Twenty shade-growing individuals of both species were divided into two height classes: seedlings, if height < 50cm; and saplings, if height > 100cm. The canopy coverage over each individual was assessed by analyzing hemispherical photography and average light incidence. Leaf pigments are being analyzed by chromatography. Light response curves and chlorophyll fluorescence are being measured seasonally, except in winter. Results are analyzed through General Linear Models. The study period was from spring 2009 to summer 2010. Results/Conclusions Results show an inversion of the photosynthetic adaptation between seedlings and saplings, and also between species. Picea seedlings and Abies saplings have greater total chlorophyll content and higher photosynthetic rates than Picea saplings and Abies seedlings. As a consequence, the superior competitor between similar sized individuals of both species appears to change between size-classes, with Abies presenting higher photosynthetic rates at the sapling class and Picea at the seedling class. Nevertheless, no significant growth has been observed in any of the groups until now. Results also disagree with some of the previously reported photosynthetic characteristics of these species, with Picea seedlings displaying more traits usually associated with shade adaptation than Abies seedlings. |
format |
Article in Journal/Newspaper |
author |
Bontempo e Silva, Edgard Hara, Toshihiko Sumida, Akihiro Ono, Kiyomi |
author_facet |
Bontempo e Silva, Edgard Hara, Toshihiko Sumida, Akihiro Ono, Kiyomi |
author_sort |
Bontempo e Silva, Edgard |
title |
Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. |
title_short |
Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. |
title_full |
Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. |
title_fullStr |
Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. |
title_full_unstemmed |
Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. |
title_sort |
differential photosynthetic adaptation between size-classes of spruce and fir juveniles help to explain the co-existence of the two species. |
publisher |
Springer Science and Business Media LLC |
publishDate |
2010 |
url |
http://dx.doi.org/10.1038/npre.2010.5298.1 http://www.nature.com/articles/npre.2010.5298.1.pdf http://www.nature.com/articles/npre.2010.5298.1 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Nature Precedings ISSN 1756-0357 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ https://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/npre.2010.5298.1 |
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Nature Precedings |
_version_ |
1766181787641315328 |