MycorrhizaeV1, Main, Corpus, bibRecord, 000E91

Shading and litter mediate the effects of soil fertility on the performance of an understorey herb.

Identifieur interne : 000E91 ( Main/Corpus ); précédent : 000E90; suivant : 000E92

Shading and litter mediate the effects of soil fertility on the performance of an understorey herb.

Auteurs : Stella M. Copeland ; Susan P. Harrison

Source :

Annals of botany [ 1095-8290 ] ; 2016.

RBID : pubmed:27604279

English descriptors

KwdEn :
- Ecology (MeSH), Mycorrhizae (metabolism), Primulaceae (growth & development), Primulaceae (physiology), Reproduction (physiology), Soil (MeSH), Soil Microbiology (MeSH), Sunlight (MeSH).
MESH :
- chemical : Soil.
- growth & development : Primulaceae.
- metabolism : Mycorrhizae.
- physiology : Primulaceae, Reproduction.
- Ecology, Soil Microbiology, Sunlight.

Abstract

BACKGROUND AND AIMS

Soil fertility and topographic microclimate are common determinants of plant species distributions. However, biotic conditions also vary along these abiotic gradients, and may mediate their effects on plants. In this study, we investigated whether soils and topographic microclimate acted directly on the performance of a focal understorey plant, or indirectly via changing biotic conditions.

METHODS

We examined direct and indirect relationships between abiotic variables (soil fertility and topographic microclimate) and biotic factors (overstorey and understorey cover, litter depth and mycorrhizal colonization) and the occurrence, density and flowering of a common understorey herb, Trientalis latifolia, in the Klamath-Siskiyou Mountains, Oregon, USA.

RESULTS

We found that the positive effects of soil fertility on Trientalis occurrence were mediated by greater overstorey shading and deeper litter. However, we did not find any effects of topographic microclimate on Trientalis distribution that were mediated by the biotic variables we measured. The predictive success of Trientalis species distribution models with soils and topographic microclimate increased by 12 % with the addition of the biotic variables.

CONCLUSIONS

Our results reinforce the idea that species distributions are the outcome of interrelated abiotic gradients and biotic interactions, and suggest that biotic conditions, such as overstorey density, should be included in species distribution models if data are available.

DOI: 10.1093/aob/mcw172
PubMed: 27604279
PubMed Central: PMC5091728

Links to Exploration step

pubmed:27604279

Le document en format XML

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<author><name sortKey="Copeland, Stella M" sort="Copeland, Stella M" uniqKey="Copeland S" first="Stella M" last="Copeland">Stella M. Copeland</name>
<affiliation><nlm:affiliation>Environmental Science and Policy, University of California, Davis, CA, USA scopeland@ucdavis.edu.</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Harrison, Susan P" sort="Harrison, Susan P" uniqKey="Harrison S" first="Susan P" last="Harrison">Susan P. Harrison</name>
<affiliation><nlm:affiliation>Environmental Science and Policy, University of California, Davis, CA, USA.</nlm:affiliation>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Shading and litter mediate the effects of soil fertility on the performance of an understorey herb.</title>
<author><name sortKey="Copeland, Stella M" sort="Copeland, Stella M" uniqKey="Copeland S" first="Stella M" last="Copeland">Stella M. Copeland</name>
<affiliation><nlm:affiliation>Environmental Science and Policy, University of California, Davis, CA, USA scopeland@ucdavis.edu.</nlm:affiliation>
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<author><name sortKey="Harrison, Susan P" sort="Harrison, Susan P" uniqKey="Harrison S" first="Susan P" last="Harrison">Susan P. Harrison</name>
<affiliation><nlm:affiliation>Environmental Science and Policy, University of California, Davis, CA, USA.</nlm:affiliation>
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<series><title level="j">Annals of botany</title>
<idno type="eISSN">1095-8290</idno>
<imprint><date when="2016" type="published">2016</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ecology (MeSH)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Primulaceae (growth & development)</term>
<term>Primulaceae (physiology)</term>
<term>Reproduction (physiology)</term>
<term>Soil (MeSH)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Sunlight (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Soil</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Primulaceae</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Mycorrhizae</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Primulaceae</term>
<term>Reproduction</term>
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<keywords scheme="MESH" xml:lang="en"><term>Ecology</term>
<term>Soil Microbiology</term>
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<front><div type="abstract" xml:lang="en"><p><b>BACKGROUND AND AIMS</b>
</p>
<p>Soil fertility and topographic microclimate are common determinants of plant species distributions. However, biotic conditions also vary along these abiotic gradients, and may mediate their effects on plants. In this study, we investigated whether soils and topographic microclimate acted directly on the performance of a focal understorey plant, or indirectly via changing biotic conditions.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>METHODS</b>
</p>
<p>We examined direct and indirect relationships between abiotic variables (soil fertility and topographic microclimate) and biotic factors (overstorey and understorey cover, litter depth and mycorrhizal colonization) and the occurrence, density and flowering of a common understorey herb, Trientalis latifolia, in the Klamath-Siskiyou Mountains, Oregon, USA.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>RESULTS</b>
</p>
<p>We found that the positive effects of soil fertility on Trientalis occurrence were mediated by greater overstorey shading and deeper litter. However, we did not find any effects of topographic microclimate on Trientalis distribution that were mediated by the biotic variables we measured. The predictive success of Trientalis species distribution models with soils and topographic microclimate increased by 12 % with the addition of the biotic variables.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b>
</p>
<p>Our results reinforce the idea that species distributions are the outcome of interrelated abiotic gradients and biotic interactions, and suggest that biotic conditions, such as overstorey density, should be included in species distribution models if data are available.</p>
</div>
</front>
</TEI>
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<DateCompleted><Year>2017</Year>
<Month>08</Month>
<Day>21</Day>
</DateCompleted>
<DateRevised><Year>2018</Year>
<Month>11</Month>
<Day>13</Day>
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<Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1095-8290</ISSN>
<JournalIssue CitedMedium="Internet"><Volume>118</Volume>
<Issue>6</Issue>
<PubDate><Year>2016</Year>
<Month>11</Month>
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<Title>Annals of botany</Title>
<ISOAbbreviation>Ann Bot</ISOAbbreviation>
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<ArticleTitle>Shading and litter mediate the effects of soil fertility on the performance of an understorey herb.</ArticleTitle>
<Pagination><MedlinePgn>1187-1198</MedlinePgn>
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<Abstract><AbstractText Label="BACKGROUND AND AIMS">Soil fertility and topographic microclimate are common determinants of plant species distributions. However, biotic conditions also vary along these abiotic gradients, and may mediate their effects on plants. In this study, we investigated whether soils and topographic microclimate acted directly on the performance of a focal understorey plant, or indirectly via changing biotic conditions.</AbstractText>
<AbstractText Label="METHODS">We examined direct and indirect relationships between abiotic variables (soil fertility and topographic microclimate) and biotic factors (overstorey and understorey cover, litter depth and mycorrhizal colonization) and the occurrence, density and flowering of a common understorey herb, Trientalis latifolia, in the Klamath-Siskiyou Mountains, Oregon, USA.</AbstractText>
<AbstractText Label="RESULTS">We found that the positive effects of soil fertility on Trientalis occurrence were mediated by greater overstorey shading and deeper litter. However, we did not find any effects of topographic microclimate on Trientalis distribution that were mediated by the biotic variables we measured. The predictive success of Trientalis species distribution models with soils and topographic microclimate increased by 12 % with the addition of the biotic variables.</AbstractText>
<AbstractText Label="CONCLUSIONS">Our results reinforce the idea that species distributions are the outcome of interrelated abiotic gradients and biotic interactions, and suggest that biotic conditions, such as overstorey density, should be included in species distribution models if data are available.</AbstractText>
<CopyrightInformation>© The Author 2016. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Copeland</LastName>
<ForeName>Stella M</ForeName>
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<AffiliationInfo><Affiliation>Environmental Science and Policy, University of California, Davis, CA, USA scopeland@ucdavis.edu.</Affiliation>
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<Author ValidYN="Y"><LastName>Harrison</LastName>
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<AffiliationInfo><Affiliation>Environmental Science and Policy, University of California, Davis, CA, USA.</Affiliation>
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<MeshHeadingList><MeshHeading><DescriptorName UI="D004463" MajorTopicYN="N">Ecology</DescriptorName>
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<MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName>
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<MeshHeading><DescriptorName UI="D029623" MajorTopicYN="N">Primulaceae</DescriptorName>
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<KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">Abiotic factors</Keyword>
<Keyword MajorTopicYN="Y">Trientalis latifolia</Keyword>
<Keyword MajorTopicYN="Y">biotic conditions</Keyword>
<Keyword MajorTopicYN="Y">distribution</Keyword>
<Keyword MajorTopicYN="Y">mycorrhizae</Keyword>
<Keyword MajorTopicYN="Y">overstorey shading</Keyword>
<Keyword MajorTopicYN="Y">soil fertility</Keyword>
<Keyword MajorTopicYN="Y">topographic microclimate</Keyword>
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Shading and litter mediate the effects of soil fertility on the performance of an understorey herb.

Shading and litter mediate the effects of soil fertility on the performance of an understorey herb.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki