Above- and belowground interactions drive habitat segregation between two cryptic species of tropical trees.
Identifieur interne : 000238 ( Main/Corpus ); précédent : 000237; suivant : 000239Above- and belowground interactions drive habitat segregation between two cryptic species of tropical trees.
Auteurs : Camila Pizano ; Scott A. Mangan ; Edward Allen Herre ; Ahn-Heum Eom ; James W. DallingSource :
- Ecology [ 0012-9658 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Nitrogen, Phosphorus, Soil.
- physiology : Mycorrhizae.
- Animals, Ecosystem, Panama, Soil Microbiology, Trees.
Abstract
In the lowlands of central Panama, the Neotropical pioneer tree Trema micrantha (sensu lato) exists as two cryptic species: "landslide" Trema is restricted to landslides and road embankments, while "gap" Trema occurs mostly in treefall gaps. In this study, we explored the relative contributions of biotic interactions and physical factors to habitat segregation in T. micrantha. Field surveys showed that soils from landslides were significantly richer in available phosphorus and harbored distinct arbuscular mycorrhizal fungal (AMF) communities compared to gap soils. Greenhouse experiments designed to determine the effect of these abiotic and biotic differences showed that: (1) both landslide and gap species performed better in sterilized soil from their own habitat, (2) the availability of phosphorus and nitrogen was limiting in gap and landslide soils, respectively, (3) a standardized AMF inoculum increased performance of both species, but primarily on gap soils, and (4) landslide and gap species performed better when sterilized soils were inoculated with the microbial inoculum from their own habitat. A field experiment confirmed that survival and growth of each species was highest in its corresponding habitat. This experiment also showed that browsing damage significantly decreased survival of gap Trema on landslides. We conclude that belowground interactions with soil microbes and aboveground interactions with herbivores contribute in fundamental ways to processes that may promote and reinforce adaptive speciation.
DOI: 10.1890/09-1715.1
PubMed: 21560675
Links to Exploration step
pubmed:21560675Le document en format XML
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Mangan</name></author><author><name sortKey="Herre, Edward Allen" sort="Herre, Edward Allen" uniqKey="Herre E" first="Edward Allen" last="Herre">Edward Allen Herre</name></author><author><name sortKey="Eom, Ahn Heum" sort="Eom, Ahn Heum" uniqKey="Eom A" first="Ahn-Heum" last="Eom">Ahn-Heum Eom</name></author><author><name sortKey="Dalling, James W" sort="Dalling, James W" uniqKey="Dalling J" first="James W" last="Dalling">James W. 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Mangan</name></author><author><name sortKey="Herre, Edward Allen" sort="Herre, Edward Allen" uniqKey="Herre E" first="Edward Allen" last="Herre">Edward Allen Herre</name></author><author><name sortKey="Eom, Ahn Heum" sort="Eom, Ahn Heum" uniqKey="Eom A" first="Ahn-Heum" last="Eom">Ahn-Heum Eom</name></author><author><name sortKey="Dalling, James W" sort="Dalling, James W" uniqKey="Dalling J" first="James W" last="Dalling">James W. Dalling</name></author></analytic><series><title level="j">Ecology</title><idno type="ISSN">0012-9658</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Ecosystem (MeSH)</term><term>Mycorrhizae (physiology)</term><term>Nitrogen (chemistry)</term><term>Panama (MeSH)</term><term>Phosphorus (chemistry)</term><term>Soil (chemistry)</term><term>Soil Microbiology (MeSH)</term><term>Trees (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Nitrogen</term><term>Phosphorus</term><term>Soil</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Ecosystem</term><term>Panama</term><term>Soil Microbiology</term><term>Trees</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In the lowlands of central Panama, the Neotropical pioneer tree Trema micrantha (sensu lato) exists as two cryptic species: "landslide" Trema is restricted to landslides and road embankments, while "gap" Trema occurs mostly in treefall gaps. In this study, we explored the relative contributions of biotic interactions and physical factors to habitat segregation in T. micrantha. Field surveys showed that soils from landslides were significantly richer in available phosphorus and harbored distinct arbuscular mycorrhizal fungal (AMF) communities compared to gap soils. Greenhouse experiments designed to determine the effect of these abiotic and biotic differences showed that: (1) both landslide and gap species performed better in sterilized soil from their own habitat, (2) the availability of phosphorus and nitrogen was limiting in gap and landslide soils, respectively, (3) a standardized AMF inoculum increased performance of both species, but primarily on gap soils, and (4) landslide and gap species performed better when sterilized soils were inoculated with the microbial inoculum from their own habitat. A field experiment confirmed that survival and growth of each species was highest in its corresponding habitat. This experiment also showed that browsing damage significantly decreased survival of gap Trema on landslides. We conclude that belowground interactions with soil microbes and aboveground interactions with herbivores contribute in fundamental ways to processes that may promote and reinforce adaptive speciation.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21560675</PMID><DateCompleted><Year>2011</Year><Month>06</Month><Day>02</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>02</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0012-9658</ISSN><JournalIssue CitedMedium="Print"><Volume>92</Volume><Issue>1</Issue><PubDate><Year>2011</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Ecology</Title><ISOAbbreviation>Ecology</ISOAbbreviation></Journal><ArticleTitle>Above- and belowground interactions drive habitat segregation between two cryptic species of tropical trees.</ArticleTitle><Pagination><MedlinePgn>47-56</MedlinePgn></Pagination><Abstract><AbstractText>In the lowlands of central Panama, the Neotropical pioneer tree Trema micrantha (sensu lato) exists as two cryptic species: "landslide" Trema is restricted to landslides and road embankments, while "gap" Trema occurs mostly in treefall gaps. In this study, we explored the relative contributions of biotic interactions and physical factors to habitat segregation in T. micrantha. Field surveys showed that soils from landslides were significantly richer in available phosphorus and harbored distinct arbuscular mycorrhizal fungal (AMF) communities compared to gap soils. Greenhouse experiments designed to determine the effect of these abiotic and biotic differences showed that: (1) both landslide and gap species performed better in sterilized soil from their own habitat, (2) the availability of phosphorus and nitrogen was limiting in gap and landslide soils, respectively, (3) a standardized AMF inoculum increased performance of both species, but primarily on gap soils, and (4) landslide and gap species performed better when sterilized soils were inoculated with the microbial inoculum from their own habitat. A field experiment confirmed that survival and growth of each species was highest in its corresponding habitat. This experiment also showed that browsing damage significantly decreased survival of gap Trema on landslides. We conclude that belowground interactions with soil microbes and aboveground interactions with herbivores contribute in fundamental ways to processes that may promote and reinforce adaptive speciation.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pizano</LastName><ForeName>Camila</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Smithsonian Tropical Research Institute, Unit 9100, Box 0948, APO AA 34002, USA. pizanoc@ufl.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Mangan</LastName><ForeName>Scott A</ForeName><Initials>SA</Initials></Author><Author ValidYN="Y"><LastName>Herre</LastName><ForeName>Edward Allen</ForeName><Initials>EA</Initials></Author><Author ValidYN="Y"><LastName>Eom</LastName><ForeName>Ahn-Heum</ForeName><Initials>AH</Initials></Author><Author ValidYN="Y"><LastName>Dalling</LastName><ForeName>James W</ForeName><Initials>JW</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Ecology</MedlineTA><NlmUniqueID>0043541</NlmUniqueID><ISSNLinking>0012-9658</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>27YLU75U4W</RegistryNumber><NameOfSubstance UI="D010758">Phosphorus</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="Y">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010176" MajorTopicYN="N">Panama</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010758" MajorTopicYN="N">Phosphorus</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="Y">Trees</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>5</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>5</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>6</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21560675</ArticleId><ArticleId IdType="doi">10.1890/09-1715.1</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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