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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/cobi.12121
|2 doi
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|a pubmed24n0770.xml
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|a eng
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|a Matlack, Glenn R
|e verfasserin
|4 aut
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|a Reassessment of the use of fire as a management tool in deciduous forests of eastern North America
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|c 2013
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 08.05.2014
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|a Date Revised 09.07.2015
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|a published: Print
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|a CommentIn: Conserv Biol. 2015 Jun;29(3):947-9. - PMID 25704485
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|a Citation Status MEDLINE
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|a © 2013 Society for Conservation Biology.
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|a Prescribed burning is increasingly being used in the deciduous forests of eastern North America. Recent work suggests that historical fire frequency has been overestimated east of the prairie-woodland transition zone, and its introduction could potentially reduce forest herb and shrub diversity. Fire-history recreations derived from sedimentary charcoal, tree fire scars, and estimates of Native American burning suggest point-return times ranging from 5-10 years to centuries and millennia. Actual return times were probably longer because such records suffer from selective sampling, small sample sizes, and a probable publication bias toward frequent fire. Archeological evidence shows the environmental effect of fire could be severe in the immediate neighborhood of a Native American village. Population density appears to have been low through most of the Holocene, however, and villages were strongly clustered at a regional scale. Thus, it appears that the majority of forests of the eastern United States were little affected by burning before European settlement. Use of prescribed burning assumes that most forest species are tolerant of fire and that burning will have only a minimal effect on diversity. However, common adaptations such as serotiny, epicormic sprouting, resprouting from rhizomes, and smoke-cued germination are unknown across most of the deciduous region. Experimental studies of burning show vegetation responses similar to other forms of disturbance that remove stems and litter and do not necessarily imply adaptation to fire. The general lack of adaptation could potentially cause a reduction in diversity if burning were introduced. These observations suggest a need for a fine-grained examination of fire history with systematic sampling in which all subregions, landscape positions, and community types are represented. Responses to burning need to be examined in noncommercial and nonwoody species in rigorous manipulative experiments. Until such information is available, it seems prudent to limit the use of prescribed burning east of the prairie-woodland transition zone
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|a Historical Article
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|a Journal Article
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|a fire scar
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|a historia de vegetación
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|a nativo americano
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|a oak
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|a roble
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|a vegetation history
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|i Enthalten in
|t Conservation biology : the journal of the Society for Conservation Biology
|d 1999
|g 27(2013), 5 vom: 30. Okt., Seite 916-26
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