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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Seed size, number and strategies in annual plants: a comparative functional analysis and synthesis</title><author><name sortKey="Hodgson, John G" sort="Hodgson, John G" uniqKey="Hodgson J" first="John G" last="Hodgson">John G. Hodgson</name><affiliation><nlm:aff id="AF0001"><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Montserrat Marti, Gabriel" sort="Montserrat Marti, Gabriel" uniqKey="Montserrat Marti G" first="Gabriel" last="Montserrat Marti">Gabriel Montserrat Marti</name><affiliation><nlm:aff id="AF0003"><institution>Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología (CSIC)</institution>, Avda. Montañana, Zaragoza,<country country="ES">Spain</country></nlm:aff></affiliation></author><author><name sortKey="Sera, Bozena" sort="Sera, Bozena" uniqKey="Sera B" first="Bozena" last="Šerá">Bozena Šerá</name><affiliation><nlm:aff id="AF0004"><institution>Comenius University in Bratislava, Faculty of Natural Sciences</institution>, Ilkovičova, Bratislava,<country country="SK">Slovakia</country></nlm:aff></affiliation></author><author><name sortKey="Jones, Glynis" sort="Jones, Glynis" uniqKey="Jones G" first="Glynis" last="Jones">Glynis Jones</name><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Bogaard, Amy" sort="Bogaard, Amy" uniqKey="Bogaard A" first="Amy" last="Bogaard">Amy Bogaard</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Charles, Mike" sort="Charles, Mike" uniqKey="Charles M" first="Mike" last="Charles">Mike Charles</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Font, Xavier" sort="Font, Xavier" uniqKey="Font X" first="Xavier" last="Font">Xavier Font</name><affiliation><nlm:aff id="AF0006"><institution>Centre de Documentació de Biodiversitat Vegetal, University of Barcelona</institution>, Barcelona,<country country="ES">Spain</country></nlm:aff></affiliation></author><author><name sortKey="Ater, Mohammed" sort="Ater, Mohammed" uniqKey="Ater M" first="Mohammed" last="Ater">Mohammed Ater</name><affiliation><nlm:aff id="AF0007"><institution>Laboratoire Diversité et Conservation des Systèmes Biologiques (LDICOSYB), Département de Biologie, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi</institution>, BP, Tétouan,<country country="MA">Morocco</country></nlm:aff></affiliation></author><author><name sortKey="Taleb, Abdelkader" sort="Taleb, Abdelkader" uniqKey="Taleb A" first="Abdelkader" last="Taleb">Abdelkader Taleb</name><affiliation><nlm:aff id="AF0008"><institution>Institut Agronomique et Vétérinaire Hassan II</institution>, Rabat,<country country="MA">Morocco</country></nlm:aff></affiliation></author><author><name sortKey="Santini, Bianca A" sort="Santini, Bianca A" uniqKey="Santini B" first="Bianca A" last="Santini">Bianca A. Santini</name><affiliation><nlm:aff id="AF0009"><institution>Department of Animal and Plant Sciences, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation><affiliation><nlm:aff id="AF0010"><institution>Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México</institution>, CP, Morelia, Michoacán,<country country="MX">México</country></nlm:aff></affiliation></author><author><name sortKey="Hmimsa, Younes" sort="Hmimsa, Younes" uniqKey="Hmimsa Y" first="Younes" last="Hmimsa">Younes Hmimsa</name><affiliation><nlm:aff id="AF0007"><institution>Laboratoire Diversité et Conservation des Systèmes Biologiques (LDICOSYB), Département de Biologie, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi</institution>, BP, Tétouan,<country country="MA">Morocco</country></nlm:aff></affiliation></author><author><name sortKey="Palmer, Carol" sort="Palmer, Carol" uniqKey="Palmer C" first="Carol" last="Palmer">Carol Palmer</name><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Wilson, Peter J" sort="Wilson, Peter J" uniqKey="Wilson P" first="Peter J" last="Wilson">Peter J. Wilson</name><affiliation><nlm:aff id="AF0001"><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Band, Stuart R" sort="Band, Stuart R" uniqKey="Band S" first="Stuart R" last="Band">Stuart R. Band</name><affiliation><nlm:aff id="AF0001"><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Styring, Amy" sort="Styring, Amy" uniqKey="Styring A" first="Amy" last="Styring">Amy Styring</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Diffey, Charlotte" sort="Diffey, Charlotte" uniqKey="Diffey C" first="Charlotte" last="Diffey">Charlotte Diffey</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Green, Laura" sort="Green, Laura" uniqKey="Green L" first="Laura" last="Green">Laura Green</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Nitsch, Erika" sort="Nitsch, Erika" uniqKey="Nitsch E" first="Erika" last="Nitsch">Erika Nitsch</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Stroud, Elizabeth" sort="Stroud, Elizabeth" uniqKey="Stroud E" first="Elizabeth" last="Stroud">Elizabeth Stroud</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Warham, Gemma" sort="Warham, Gemma" uniqKey="Warham G" first="Gemma" last="Warham">Gemma Warham</name><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">32812638</idno><idno type="pmc">7751024</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7751024</idno><idno type="RBID">PMC:7751024</idno><idno type="doi">10.1093/aob/mcaa151</idno><date when="2020">2020</date><idno type="wicri:Area/Pmc/Corpus">000129</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000129</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Seed size, number and strategies in annual plants: a comparative functional analysis and synthesis</title><author><name sortKey="Hodgson, John G" sort="Hodgson, John G" uniqKey="Hodgson J" first="John G" last="Hodgson">John G. Hodgson</name><affiliation><nlm:aff id="AF0001"><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Montserrat Marti, Gabriel" sort="Montserrat Marti, Gabriel" uniqKey="Montserrat Marti G" first="Gabriel" last="Montserrat Marti">Gabriel Montserrat Marti</name><affiliation><nlm:aff id="AF0003"><institution>Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología (CSIC)</institution>, Avda. Montañana, Zaragoza,<country country="ES">Spain</country></nlm:aff></affiliation></author><author><name sortKey="Sera, Bozena" sort="Sera, Bozena" uniqKey="Sera B" first="Bozena" last="Šerá">Bozena Šerá</name><affiliation><nlm:aff id="AF0004"><institution>Comenius University in Bratislava, Faculty of Natural Sciences</institution>, Ilkovičova, Bratislava,<country country="SK">Slovakia</country></nlm:aff></affiliation></author><author><name sortKey="Jones, Glynis" sort="Jones, Glynis" uniqKey="Jones G" first="Glynis" last="Jones">Glynis Jones</name><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Bogaard, Amy" sort="Bogaard, Amy" uniqKey="Bogaard A" first="Amy" last="Bogaard">Amy Bogaard</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Charles, Mike" sort="Charles, Mike" uniqKey="Charles M" first="Mike" last="Charles">Mike Charles</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Font, Xavier" sort="Font, Xavier" uniqKey="Font X" first="Xavier" last="Font">Xavier Font</name><affiliation><nlm:aff id="AF0006"><institution>Centre de Documentació de Biodiversitat Vegetal, University of Barcelona</institution>, Barcelona,<country country="ES">Spain</country></nlm:aff></affiliation></author><author><name sortKey="Ater, Mohammed" sort="Ater, Mohammed" uniqKey="Ater M" first="Mohammed" last="Ater">Mohammed Ater</name><affiliation><nlm:aff id="AF0007"><institution>Laboratoire Diversité et Conservation des Systèmes Biologiques (LDICOSYB), Département de Biologie, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi</institution>, BP, Tétouan,<country country="MA">Morocco</country></nlm:aff></affiliation></author><author><name sortKey="Taleb, Abdelkader" sort="Taleb, Abdelkader" uniqKey="Taleb A" first="Abdelkader" last="Taleb">Abdelkader Taleb</name><affiliation><nlm:aff id="AF0008"><institution>Institut Agronomique et Vétérinaire Hassan II</institution>, Rabat,<country country="MA">Morocco</country></nlm:aff></affiliation></author><author><name sortKey="Santini, Bianca A" sort="Santini, Bianca A" uniqKey="Santini B" first="Bianca A" last="Santini">Bianca A. Santini</name><affiliation><nlm:aff id="AF0009"><institution>Department of Animal and Plant Sciences, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation><affiliation><nlm:aff id="AF0010"><institution>Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México</institution>, CP, Morelia, Michoacán,<country country="MX">México</country></nlm:aff></affiliation></author><author><name sortKey="Hmimsa, Younes" sort="Hmimsa, Younes" uniqKey="Hmimsa Y" first="Younes" last="Hmimsa">Younes Hmimsa</name><affiliation><nlm:aff id="AF0007"><institution>Laboratoire Diversité et Conservation des Systèmes Biologiques (LDICOSYB), Département de Biologie, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi</institution>, BP, Tétouan,<country country="MA">Morocco</country></nlm:aff></affiliation></author><author><name sortKey="Palmer, Carol" sort="Palmer, Carol" uniqKey="Palmer C" first="Carol" last="Palmer">Carol Palmer</name><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Wilson, Peter J" sort="Wilson, Peter J" uniqKey="Wilson P" first="Peter J" last="Wilson">Peter J. Wilson</name><affiliation><nlm:aff id="AF0001"><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Band, Stuart R" sort="Band, Stuart R" uniqKey="Band S" first="Stuart R" last="Band">Stuart R. Band</name><affiliation><nlm:aff id="AF0001"><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Styring, Amy" sort="Styring, Amy" uniqKey="Styring A" first="Amy" last="Styring">Amy Styring</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Diffey, Charlotte" sort="Diffey, Charlotte" uniqKey="Diffey C" first="Charlotte" last="Diffey">Charlotte Diffey</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Green, Laura" sort="Green, Laura" uniqKey="Green L" first="Laura" last="Green">Laura Green</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Nitsch, Erika" sort="Nitsch, Erika" uniqKey="Nitsch E" first="Erika" last="Nitsch">Erika Nitsch</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Stroud, Elizabeth" sort="Stroud, Elizabeth" uniqKey="Stroud E" first="Elizabeth" last="Stroud">Elizabeth Stroud</name><affiliation><nlm:aff id="AF0005"><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></nlm:aff></affiliation></author><author><name sortKey="Warham, Gemma" sort="Warham, Gemma" uniqKey="Warham G" first="Gemma" last="Warham">Gemma Warham</name><affiliation><nlm:aff id="AF0002"><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></nlm:aff></affiliation></author></analytic><series><title level="j">Annals of Botany</title><idno type="ISSN">0305-7364</idno><idno type="eISSN">1095-8290</idno><imprint><date when="2020">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>Abstract</title><sec id="s0100"><title>Background and Aims</title><p>Plants depend fundamentally on establishment from seed. However, protocols in trait-based ecology currently estimate seed size but not seed number. This can be rectified. For annuals, seed number should simply be a positive function of vegetative biomass and a negative function of seed size.</p></sec><sec id="s0101"><title>Methods</title><p>Using published values of comparative seed number as the ‘gold standard’ and a large functional database, comparative seed yield and number per plant and per m<sup>2</sup> were predicted by multiple regression. Subsequently, ecological variation in each was explored for English and Spanish habitats, newly calculated C-S-R strategies and changed abundance in the British flora.</p></sec><sec id="s0102"><title>Key Results</title><p>As predicted, comparative seed mass yield per plant was consistently a positive function of plant size and competitive ability, and largely independent of seed size. Regressions estimating comparative seed number included, additionally, seed size as a negative function. Relationships differed numerically between regions, habitats and C-S-R strategies. Moreover, some species differed in life history over their geographical range. Comparative seed yield per m<sup>2</sup> was positively correlated with FAO crop yield, and increasing British annuals produced numerous seeds. Nevertheless, predicted values must be viewed as comparative rather than absolute: they varied according to the ‘gold standard’ predictor used. Moreover, regressions estimating comparative seed yield per m<sup>2</sup> achieved low precision.</p></sec><sec id="s0103"><title>Conclusions</title><p>For the first time, estimates of comparative seed yield and number for >800 annuals and their predictor equations have been produced and the ecological importance of these regenerative traits has been illustrated. ‘Regenerative trait-based ecology’ remains in its infancy, with work needed on determinate vs. indeterminate flowering (‘bet-hedging’), C-S-R methodologies, phylogeny, comparative seed yield per m<sup>2</sup> and changing life history. Nevertheless, this has been a positive start and readers are invited to use estimates for >800 annuals, in the Supplementary data, to help advance ‘regenerative trait-based ecology’ to the next level.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Ann Bot</journal-id><journal-id journal-id-type="iso-abbrev">Ann Bot</journal-id><journal-id journal-id-type="publisher-id">annbot</journal-id><journal-title-group><journal-title>Annals of Botany</journal-title></journal-title-group><issn pub-type="ppub">0305-7364</issn><issn pub-type="epub">1095-8290</issn><publisher><publisher-name>Oxford University Press</publisher-name><publisher-loc>US</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">32812638</article-id><article-id pub-id-type="pmc">7751024</article-id><article-id pub-id-type="doi">10.1093/aob/mcaa151</article-id><article-id pub-id-type="publisher-id">mcaa151</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research In Context</subject></subj-group><subj-group subj-group-type="category-taxonomy-collection"><subject>AcademicSubjects/SCI01080</subject><subject>AcademicSubjects/SCI01130</subject><subject>AcademicSubjects/SCI01210</subject></subj-group></article-categories><title-group><article-title>Seed size, number and strategies in annual plants: a comparative functional analysis and synthesis</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Hodgson</surname><given-names>John G</given-names></name><xref ref-type="aff" rid="AF0001">1</xref><xref ref-type="aff" rid="AF0002">2</xref><xref ref-type="corresp" rid="c1"></xref><pmc-comment>j.hodgson@sheffield.ac.uk </pmc-comment>
</contrib><contrib contrib-type="author"><name><surname>Montserrat Marti</surname><given-names>Gabriel</given-names></name><xref ref-type="aff" rid="AF0003">3</xref></contrib><contrib contrib-type="author"><name><surname>Šerá</surname><given-names>Bozena</given-names></name><xref ref-type="aff" rid="AF0004">4</xref></contrib><contrib contrib-type="author"><name><surname>Jones</surname><given-names>Glynis</given-names></name><xref ref-type="aff" rid="AF0002">2</xref></contrib><contrib contrib-type="author"><name><surname>Bogaard</surname><given-names>Amy</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Charles</surname><given-names>Mike</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Font</surname><given-names>Xavier</given-names></name><xref ref-type="aff" rid="AF0006">6</xref></contrib><contrib contrib-type="author"><name><surname>Ater</surname><given-names>Mohammed</given-names></name><xref ref-type="aff" rid="AF0007">7</xref></contrib><contrib contrib-type="author"><name><surname>Taleb</surname><given-names>Abdelkader</given-names></name><xref ref-type="aff" rid="AF0008">8</xref></contrib><contrib contrib-type="author"><name><surname>Santini</surname><given-names>Bianca A</given-names></name><xref ref-type="aff" rid="AF0009">9</xref><xref ref-type="aff" rid="AF0010">10</xref></contrib><contrib contrib-type="author"><name><surname>Hmimsa</surname><given-names>Younes</given-names></name><xref ref-type="aff" rid="AF0007">7</xref></contrib><contrib contrib-type="author"><name><surname>Palmer</surname><given-names>Carol</given-names></name><xref ref-type="aff" rid="AF0002">2</xref></contrib><contrib contrib-type="author"><name><surname>Wilson</surname><given-names>Peter J</given-names></name><xref ref-type="aff" rid="AF0001">1</xref></contrib><contrib contrib-type="author"><name><surname>Band</surname><given-names>Stuart R</given-names></name><xref ref-type="aff" rid="AF0001">1</xref></contrib><contrib contrib-type="author"><name><surname>Styring</surname><given-names>Amy</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Diffey</surname><given-names>Charlotte</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Green</surname><given-names>Laura</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Nitsch</surname><given-names>Erika</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Stroud</surname><given-names>Elizabeth</given-names></name><xref ref-type="aff" rid="AF0005">5</xref></contrib><contrib contrib-type="author"><name><surname>Warham</surname><given-names>Gemma</given-names></name><xref ref-type="aff" rid="AF0002">2</xref></contrib></contrib-group><aff id="AF0001"><label>1</label><institution>Unit of Comparative Plant Ecology, The University</institution>, Sheffield,<country country="GB">UK</country></aff><aff id="AF0002"><label>2</label><institution>Department of Archaeology, The University</institution>, Sheffield,<country country="GB">UK</country></aff><aff id="AF0003"><label>3</label><institution>Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología (CSIC)</institution>, Avda. Montañana, Zaragoza,<country country="ES">Spain</country></aff><aff id="AF0004"><label>4</label><institution>Comenius University in Bratislava, Faculty of Natural Sciences</institution>, Ilkovičova, Bratislava,<country country="SK">Slovakia</country></aff><aff id="AF0005"><label>5</label><institution>School of Archaeology, University of Oxford</institution>, Oxford,<country country="GB">UK</country></aff><aff id="AF0006"><label>6</label><institution>Centre de Documentació de Biodiversitat Vegetal, University of Barcelona</institution>, Barcelona,<country country="ES">Spain</country></aff><aff id="AF0007"><label>7</label><institution>Laboratoire Diversité et Conservation des Systèmes Biologiques (LDICOSYB), Département de Biologie, Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi</institution>, BP, Tétouan,<country country="MA">Morocco</country></aff><aff id="AF0008"><label>8</label><institution>Institut Agronomique et Vétérinaire Hassan II</institution>, Rabat,<country country="MA">Morocco</country></aff><aff id="AF0009"><label>9</label><institution>Department of Animal and Plant Sciences, The University</institution>, Sheffield,<country country="GB">UK</country></aff><aff id="AF0010"><label>10</label><institution>Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México</institution>, CP, Morelia, Michoacán,<country country="MX">México</country></aff><author-notes><corresp id="c1">For correspondence. Email <email>j.hodgson@sheffield.ac.uk</email></corresp></author-notes><pub-date pub-type="collection"><day>25</day><month>11</month><year>2020</year></pub-date><pub-date pub-type="epub" iso-8601-date="2020-08-19"><day>19</day><month>8</month><year>2020</year></pub-date><pub-date pub-type="pmc-release"><day>19</day><month>8</month><year>2021</year></pub-date><pmc-comment> PMC Release delay is 12 months and
0 days and was based on the
<volume>126</volume><issue>7</issue><fpage>1109</fpage><lpage>1128</lpage><history><date date-type="received"><day>10</day><month>8</month><year>2020</year></date><date date-type="rev-request"><day>21</day><month>6</month><year>2020</year></date><date date-type="editorial-decision"><day>30</day><month>7</month><year>2020</year></date><date date-type="accepted"><day>11</day><month>8</month><year>2020</year></date><date date-type="corrected-typeset"><day>07</day><month>11</month><year>2020</year></date></history><permissions><copyright-statement>© The Author(s) 2020. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.</copyright-statement><copyright-year>2020</copyright-year><license license-type="publisher-standard" xlink:href="https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model"><license-p>This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)</license-p></license></permissions><self-uri xlink:href="mcaa151.pdf"></self-uri><abstract><title>Abstract</title><sec id="s0100"><title>Background and Aims</title><p>Plants depend fundamentally on establishment from seed. However, protocols in trait-based ecology currently estimate seed size but not seed number. This can be rectified. For annuals, seed number should simply be a positive function of vegetative biomass and a negative function of seed size.</p></sec><sec id="s0101"><title>Methods</title><p>Using published values of comparative seed number as the ‘gold standard’ and a large functional database, comparative seed yield and number per plant and per m<sup>2</sup> were predicted by multiple regression. Subsequently, ecological variation in each was explored for English and Spanish habitats, newly calculated C-S-R strategies and changed abundance in the British flora.</p></sec><sec id="s0102"><title>Key Results</title><p>As predicted, comparative seed mass yield per plant was consistently a positive function of plant size and competitive ability, and largely independent of seed size. Regressions estimating comparative seed number included, additionally, seed size as a negative function. Relationships differed numerically between regions, habitats and C-S-R strategies. Moreover, some species differed in life history over their geographical range. Comparative seed yield per m<sup>2</sup> was positively correlated with FAO crop yield, and increasing British annuals produced numerous seeds. Nevertheless, predicted values must be viewed as comparative rather than absolute: they varied according to the ‘gold standard’ predictor used. Moreover, regressions estimating comparative seed yield per m<sup>2</sup> achieved low precision.</p></sec><sec id="s0103"><title>Conclusions</title><p>For the first time, estimates of comparative seed yield and number for >800 annuals and their predictor equations have been produced and the ecological importance of these regenerative traits has been illustrated. ‘Regenerative trait-based ecology’ remains in its infancy, with work needed on determinate vs. indeterminate flowering (‘bet-hedging’), C-S-R methodologies, phylogeny, comparative seed yield per m<sup>2</sup> and changing life history. Nevertheless, this has been a positive start and readers are invited to use estimates for >800 annuals, in the Supplementary data, to help advance ‘regenerative trait-based ecology’ to the next level.</p></sec></abstract><kwd-group><kwd>Allometry</kwd><kwd>bet-hedging</kwd><kwd>canopy structure</kwd><kwd>conservation status</kwd><kwd>C-S-R strategy</kwd><kwd>functional traits</kwd><kwd>inflorescence structure</kwd><kwd>life history</kwd><kwd>phylogeny</kwd><kwd>plant size</kwd><kwd>regenerative strategy</kwd><kwd>seed–phytomer–leaf (SPL) theory</kwd><kwd>trade-offs</kwd></kwd-group><funding-group><award-group award-type="grant"><funding-source><institution-wrap><institution>NERC (UK)</institution></institution-wrap></funding-source></award-group><award-group award-type="grant"><funding-source><institution-wrap><institution>Comisión Interministerial de Ciencia y Tecnología</institution><institution-id institution-id-type="DOI">10.13039/501100007273</institution-id></institution-wrap></funding-source></award-group></funding-group><counts><page-count count="20"></page-count></counts></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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