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231224s2009 xx |||||o 00| ||eng c |
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|a 10.1111/j.1529-8817.2009.00710.x
|2 doi
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|a pubmed25n0863.xml
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|b ger
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|e rakwb
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|a eng
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|a Longtin, Caroline M
|e verfasserin
|4 aut
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|a DISTRIBUTION OF ALGAL EPIPHYTES ACROSS ENVIRONMENTAL GRADIENTS AT DIFFERENT SCALES
|b INTERTIDAL ELEVATION, HOST CANOPIES, AND HOST FRONDS(1)
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 04.04.2016
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|a Date Revised 01.04.2016
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a © 2009 Phycological Society of America.
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|a Understanding epiphyte distribution in coastal communities is important because these organisms affect many others directly or indirectly. Yet, their distribution has been considerably less studied than that of their hosts and other primary-space holders. Identifying major sources of variation in epiphyte abundance is thus still a need. Environmental gradients help predict species distribution and are pervasive on marine shores. In this study, we test the notion that environmental gradients across intertidal elevation, throughout host canopies, and along host fronds explain a large variation in the abundance of sympatric epiphytes. Our model system was the assemblage of Ascophyllum nodosum (L.) Le Jol. and its epiphytes Vertebrata lanosa (L.) T. A. Chr. [= Polysiphonia lanosa (L.) Tandy], Elachista fucicola (Velley) Aresch., and Pylaiella littoralis (L.) Kjellm. On the coast of Nova Scotia (Canada), we found evidence of a spatial segregation among these species at almost all scales. While the red epiphyte V. lanosa was more common at high- and midintertidal elevations (peaking at midelevations) and on middle segments of host fronds, the brown epiphytes E. fucicola and P. littoralis were more common at low elevations and restricted to distal segments of host fronds. Canopy habitat affected abundance only for V. lanosa, which was more common within the host canopy than on its periphery at midelevations. Since the studied gradients are related to predictable changes in abiotic factors, the identification of likely causes behind the observed patterns was facilitated. Our study ends by proposing abiotic and biotic factors that deserve priority in the experimental testing of the forces structuring this assemblage
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|a Journal Article
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|a Ascophyllum nodosum
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|a Elachista fucicola
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|a Pylaiella littoralis
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|a Vertebrata lanosa
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|a environmental gradient
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|a epiphyte
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|a intertidal zone
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| 650 |
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|a spatial scale
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|a Scrosati, Ricardo A
|e verfasserin
|4 aut
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1 |
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|a Whalen, Gillian B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Garbary, David J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 45(2009), 4 vom: 01. Aug., Seite 820-7
|w (DE-627)NLM098182994
|x 0022-3646
|7 nnns
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|g volume:45
|g year:2009
|g number:4
|g day:01
|g month:08
|g pages:820-7
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|u http://dx.doi.org/10.1111/j.1529-8817.2009.00710.x
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