Reproductive Patterns of Betula Pendula and B. Pubescens Coll. along a Regional Altitudinal Gradient in Northern Sweden. Holm, S. Ecography, 17(1):60–72, March, 1994. doi abstract bibtex The Scandinavian birches have different distribution patterns Betula pendula reaches its upper tree limit at the bottom of the valleys in the Scandes, while B pubescens ssp pubescens extends above the B pendula limit, and merges into B pubescens ssp tortuosa at higher elevations In a 6 yr study I quantified the spatial and temporal variation in the reproduction of these species along a regional altitudinal gradient Betula pendula showed a steeper altitudinal decrease of seed germinability and seed germination rate than B pubescens coll Seed weight was strongly and positively correlated with altitude for B pubescens, but not for B pendula The proportion of seeds infected by gall midges Semudobia coll, was much higher in B pendula than in B pubescens coll especially in the mountain area All birch taxa showed large annual variations in quantity and quality of seeds The sapling density was higher in B pubescens ssp pubescens stands than in B pendula and B pubescens ssp tortuosa stands in the mountains The vegetative reproduction was about three times higher for B pubescens ssp tortuosa, than for the other two birches These results indicate that the altitudinal variation in reproduction among the birch taxa mirror their present distribution patterns
@article{holmReproductivePatternsBetula1994,
title = {Reproductive Patterns of {{Betula}} Pendula and {{B}}. Pubescens Coll. along a Regional Altitudinal Gradient in Northern {{Sweden}}},
author = {Holm, Stig-Olov},
year = {1994},
month = mar,
volume = {17},
pages = {60--72},
issn = {0906-7590},
doi = {10.1111/j.1600-0587.1994.tb00077.x},
abstract = {The Scandinavian birches have different distribution patterns Betula pendula reaches its upper tree limit at the bottom of the valleys in the Scandes, while B pubescens ssp pubescens extends above the B pendula limit, and merges into B pubescens ssp tortuosa at higher elevations In a 6 yr study I quantified the spatial and temporal variation in the reproduction of these species along a regional altitudinal gradient Betula pendula showed a steeper altitudinal decrease of seed germinability and seed germination rate than B pubescens coll Seed weight was strongly and positively correlated with altitude for B pubescens, but not for B pendula The proportion of seeds infected by gall midges Semudobia coll, was much higher in B pendula than in B pubescens coll especially in the mountain area All birch taxa showed large annual variations in quantity and quality of seeds The sapling density was higher in B pubescens ssp pubescens stands than in B pendula and B pubescens ssp tortuosa stands in the mountains The vegetative reproduction was about three times higher for B pubescens ssp tortuosa, than for the other two birches These results indicate that the altitudinal variation in reproduction among the birch taxa mirror their present distribution patterns},
journal = {Ecography},
keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13514365,~to-add-doi-URL,betula-pendula,betula-pubescens,ecology,sweden},
lccn = {INRMM-MiD:c-13514365},
number = {1}
}
Downloads: 0
{"_id":"zk2JFjEWuTxFjAhn3","bibbaseid":"holm-reproductivepatternsofbetulapendulaandbpubescenscollalongaregionalaltitudinalgradientinnorthernsweden-1994","downloads":0,"creationDate":"2016-06-22T10:19:48.779Z","title":"Reproductive Patterns of Betula Pendula and B. Pubescens Coll. along a Regional Altitudinal Gradient in Northern Sweden","author_short":["Holm, S."],"year":1994,"bibtype":"article","biburl":"https://sharefast.me/php/download.php?id=zOUKvA&token=29","bibdata":{"bibtype":"article","type":"article","title":"Reproductive Patterns of Betula Pendula and B. Pubescens Coll. along a Regional Altitudinal Gradient in Northern Sweden","author":[{"propositions":[],"lastnames":["Holm"],"firstnames":["Stig-Olov"],"suffixes":[]}],"year":"1994","month":"March","volume":"17","pages":"60–72","issn":"0906-7590","doi":"10.1111/j.1600-0587.1994.tb00077.x","abstract":"The Scandinavian birches have different distribution patterns Betula pendula reaches its upper tree limit at the bottom of the valleys in the Scandes, while B pubescens ssp pubescens extends above the B pendula limit, and merges into B pubescens ssp tortuosa at higher elevations In a 6 yr study I quantified the spatial and temporal variation in the reproduction of these species along a regional altitudinal gradient Betula pendula showed a steeper altitudinal decrease of seed germinability and seed germination rate than B pubescens coll Seed weight was strongly and positively correlated with altitude for B pubescens, but not for B pendula The proportion of seeds infected by gall midges Semudobia coll, was much higher in B pendula than in B pubescens coll especially in the mountain area All birch taxa showed large annual variations in quantity and quality of seeds The sapling density was higher in B pubescens ssp pubescens stands than in B pendula and B pubescens ssp tortuosa stands in the mountains The vegetative reproduction was about three times higher for B pubescens ssp tortuosa, than for the other two birches These results indicate that the altitudinal variation in reproduction among the birch taxa mirror their present distribution patterns","journal":"Ecography","keywords":"*imported-from-citeulike-INRMM,~INRMM-MiD:c-13514365,~to-add-doi-URL,betula-pendula,betula-pubescens,ecology,sweden","lccn":"INRMM-MiD:c-13514365","number":"1","bibtex":"@article{holmReproductivePatternsBetula1994,\n title = {Reproductive Patterns of {{Betula}} Pendula and {{B}}. Pubescens Coll. along a Regional Altitudinal Gradient in Northern {{Sweden}}},\n author = {Holm, Stig-Olov},\n year = {1994},\n month = mar,\n volume = {17},\n pages = {60--72},\n issn = {0906-7590},\n doi = {10.1111/j.1600-0587.1994.tb00077.x},\n abstract = {The Scandinavian birches have different distribution patterns Betula pendula reaches its upper tree limit at the bottom of the valleys in the Scandes, while B pubescens ssp pubescens extends above the B pendula limit, and merges into B pubescens ssp tortuosa at higher elevations In a 6 yr study I quantified the spatial and temporal variation in the reproduction of these species along a regional altitudinal gradient Betula pendula showed a steeper altitudinal decrease of seed germinability and seed germination rate than B pubescens coll Seed weight was strongly and positively correlated with altitude for B pubescens, but not for B pendula The proportion of seeds infected by gall midges Semudobia coll, was much higher in B pendula than in B pubescens coll especially in the mountain area All birch taxa showed large annual variations in quantity and quality of seeds The sapling density was higher in B pubescens ssp pubescens stands than in B pendula and B pubescens ssp tortuosa stands in the mountains The vegetative reproduction was about three times higher for B pubescens ssp tortuosa, than for the other two birches These results indicate that the altitudinal variation in reproduction among the birch taxa mirror their present distribution patterns},\n journal = {Ecography},\n keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13514365,~to-add-doi-URL,betula-pendula,betula-pubescens,ecology,sweden},\n lccn = {INRMM-MiD:c-13514365},\n number = {1}\n}\n\n","author_short":["Holm, S."],"key":"holmReproductivePatternsBetula1994","id":"holmReproductivePatternsBetula1994","bibbaseid":"holm-reproductivepatternsofbetulapendulaandbpubescenscollalongaregionalaltitudinalgradientinnorthernsweden-1994","role":"author","urls":{},"keyword":["*imported-from-citeulike-INRMM","~INRMM-MiD:c-13514365","~to-add-doi-URL","betula-pendula","betula-pubescens","ecology","sweden"],"downloads":0},"search_terms":["reproductive","patterns","betula","pendula","pubescens","coll","along","regional","altitudinal","gradient","northern","sweden","holm"],"keywords":["betula-pendula","betula-pubescens","ecology","sweden","*imported-from-citeulike-inrmm","~inrmm-mid:c-13514365","~to-add-doi-url"],"authorIDs":[],"dataSources":["5S2zj2hKW8TWTkuMq"]}