Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden

Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern o...
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Gespeichert in:

Autor*in:	Kullman, L. [verfasserIn]

Format:	Artikel
Sprache:	Englisch

Erschienen:	1986

Schlagwörter:	ssp. Demography Establishment Germination Sowing experiments Tree-limit

Anmerkung:	© Dr W. Junk Publishers 1986

Übergeordnetes Werk:	Enthalten in: Vegetatio - Kluwer Academic Publishers, 1948, 65(1986), 1 vom: Jan., Seite 13-20
Übergeordnetes Werk:	volume:65 ; year:1986 ; number:1 ; month:01 ; pages:13-20

Links:	Volltext

DOI / URN:	10.1007/BF00032122

Katalog-ID:	OLC2084245176

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520			\|a Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem.
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allfields	10.1007/BF00032122 doi (DE-627)OLC2084245176 (DE-He213)BF00032122-p DE-627 ger DE-627 rakwb eng 580 VZ 12 ssgn BIODIV DE-30 fid Kullman, L. verfasserin aut Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Dr W. Junk Publishers 1986 Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. ssp. Demography Establishment Germination Sowing experiments Tree-limit Enthalten in Vegetatio Kluwer Academic Publishers, 1948 65(1986), 1 vom: Jan., Seite 13-20 (DE-627)129466557 (DE-600)201543-2 (DE-576)014832917 0042-3106 nnns volume:65 year:1986 number:1 month:01 pages:13-20 https://doi.org/10.1007/BF00032122 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_130 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2009 GBV_ILN_2015 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4310 GBV_ILN_4311 GBV_ILN_4323 GBV_ILN_4325 GBV_ILN_4330 AR 65 1986 1 01 13-20
spelling	10.1007/BF00032122 doi (DE-627)OLC2084245176 (DE-He213)BF00032122-p DE-627 ger DE-627 rakwb eng 580 VZ 12 ssgn BIODIV DE-30 fid Kullman, L. verfasserin aut Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Dr W. Junk Publishers 1986 Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. ssp. Demography Establishment Germination Sowing experiments Tree-limit Enthalten in Vegetatio Kluwer Academic Publishers, 1948 65(1986), 1 vom: Jan., Seite 13-20 (DE-627)129466557 (DE-600)201543-2 (DE-576)014832917 0042-3106 nnns volume:65 year:1986 number:1 month:01 pages:13-20 https://doi.org/10.1007/BF00032122 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_130 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2009 GBV_ILN_2015 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4310 GBV_ILN_4311 GBV_ILN_4323 GBV_ILN_4325 GBV_ILN_4330 AR 65 1986 1 01 13-20
allfields_unstemmed	10.1007/BF00032122 doi (DE-627)OLC2084245176 (DE-He213)BF00032122-p DE-627 ger DE-627 rakwb eng 580 VZ 12 ssgn BIODIV DE-30 fid Kullman, L. verfasserin aut Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Dr W. Junk Publishers 1986 Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. ssp. Demography Establishment Germination Sowing experiments Tree-limit Enthalten in Vegetatio Kluwer Academic Publishers, 1948 65(1986), 1 vom: Jan., Seite 13-20 (DE-627)129466557 (DE-600)201543-2 (DE-576)014832917 0042-3106 nnns volume:65 year:1986 number:1 month:01 pages:13-20 https://doi.org/10.1007/BF00032122 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_130 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2009 GBV_ILN_2015 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4310 GBV_ILN_4311 GBV_ILN_4323 GBV_ILN_4325 GBV_ILN_4330 AR 65 1986 1 01 13-20
allfieldsGer	10.1007/BF00032122 doi (DE-627)OLC2084245176 (DE-He213)BF00032122-p DE-627 ger DE-627 rakwb eng 580 VZ 12 ssgn BIODIV DE-30 fid Kullman, L. verfasserin aut Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Dr W. Junk Publishers 1986 Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. ssp. Demography Establishment Germination Sowing experiments Tree-limit Enthalten in Vegetatio Kluwer Academic Publishers, 1948 65(1986), 1 vom: Jan., Seite 13-20 (DE-627)129466557 (DE-600)201543-2 (DE-576)014832917 0042-3106 nnns volume:65 year:1986 number:1 month:01 pages:13-20 https://doi.org/10.1007/BF00032122 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_130 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2009 GBV_ILN_2015 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4310 GBV_ILN_4311 GBV_ILN_4323 GBV_ILN_4325 GBV_ILN_4330 AR 65 1986 1 01 13-20
allfieldsSound	10.1007/BF00032122 doi (DE-627)OLC2084245176 (DE-He213)BF00032122-p DE-627 ger DE-627 rakwb eng 580 VZ 12 ssgn BIODIV DE-30 fid Kullman, L. verfasserin aut Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Dr W. Junk Publishers 1986 Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. ssp. Demography Establishment Germination Sowing experiments Tree-limit Enthalten in Vegetatio Kluwer Academic Publishers, 1948 65(1986), 1 vom: Jan., Seite 13-20 (DE-627)129466557 (DE-600)201543-2 (DE-576)014832917 0042-3106 nnns volume:65 year:1986 number:1 month:01 pages:13-20 https://doi.org/10.1007/BF00032122 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-FOR SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_130 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2009 GBV_ILN_2015 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4310 GBV_ILN_4311 GBV_ILN_4323 GBV_ILN_4325 GBV_ILN_4330 AR 65 1986 1 01 13-20
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author	Kullman, L.
spellingShingle	Kullman, L. ddc 580 ssgn 12 fid BIODIV misc ssp. misc Demography misc Establishment misc Germination misc Sowing experiments misc Tree-limit Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden
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topic_title	580 VZ 12 ssgn BIODIV DE-30 fid Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden ssp Demography Establishment Germination Sowing experiments Tree-limit
topic	ddc 580 ssgn 12 fid BIODIV misc ssp. misc Demography misc Establishment misc Germination misc Sowing experiments misc Tree-limit
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title	Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden
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title_full	Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden
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title_sort	demography of betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in central sweden
title_auth	Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden
abstract	Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. © Dr W. Junk Publishers 1986
abstractGer	Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. © Dr W. Junk Publishers 1986
abstract_unstemmed	Abstract Seeds of mountain birch (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) were sown on permanent plots in three contrasting habitats close to the birch tree-limit in Central Sweden. The habitats differed mainly in regard to the length of the growth period, as determined by the pattern of local snow-accumulation. Germination success, seedling demography (1981–1983) and related aspects of the early stages were studied. Germination was found to start shortly after snowmelt in the year after ripening, in all three habitats. The conclusion is that germination is not the crucial phase of the life-cycle. In the habitat with the longest growth period, and where spontaneous birch stands are present, mortality mainly occurred in summer, evidently caused by soil drought. With shortening of the growth period, however, mortality during the winter became increasingly important. Survival was clearly correlated with the length of the growth period and the autumn height of seedlings. Factors which affect ecesis determine the altitude of the tree-limit and the long-term stability of the mountain birch forest ecosystem. © Dr W. Junk Publishers 1986
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title_short	Demography of Betula pubescens ssp. tortuosa sown in contrasting habitats close to the birch tree-limit in Central Sweden
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