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Population dynamics of temperate kelp forests near their low-latitude limit

2017-03Journal article Restricted access
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dc.contributor.authorPereira, Tânia R.
dc.contributor.authorEngelen, Aschwin
dc.contributor.authorPearson, Gareth
dc.contributor.authorValero, Myriam
dc.contributor.authorSerrao, Ester
dc.date.accessioned2019-11-20T15:07:44Z
dc.date.available2019-11-20T15:07:44Z
dc.date.issued2017-03
dc.description.abstractClimate change tends to shift species ranges polewards. Demographic processes at the rear edge are particularly interesting yet poorly understood. This study aimed to provide insights in population dynamics and resilience of temperate kelp populations at their shallower and lower latitude distribution limits, in northern Portugal. Intertidal populations of the perennial Laminaria ochroleuca, Laminaria hyperborea and the annual Saccorhiza polyschides were censused for two years and projection matrix models used to assess their demographic state and the most important demographic processes for their maintenance and growth. Furthermore, during the second year of census, the northern Portuguese coast was impacted by a late winter storm that caused extensive damage to these communities, allowing an assessment of their resilience. Yearly climate variations may affect the recruitment timing of S. polyschides, preventing sporophytes from reaching maturity, thus impairing spore production, rendering the population entirely dependent on the survival of microscopic forms. Year-round spore production by L. ochroleuca is advantageous, as it is less likely impaired by occasional extreme events. Still, while recovery of L ochroleuca took longer than two years. S. polyschides, was able to recover the following year. If future recurrence and duration of such highly energetic storms increases with climate change; these populations are expected to become gradually younger, providing less canopy. In contrast, no recovery of L hyperborea was observed. Lack of reproductive success, limited dispersal from neighboring populations and abiotic factors might have contributed to the impaired repopulation. Species persistence follows its strategy, with opportunistic species revealing higher resilience. (C) 2017 Elsevier B.V. All rights reserved.
dc.description.sponsorshipPortuguese Foundation for Science and Technology (FCT) [PTDC/AAC-CLI/109108/2008, BIODIVERSA/0004/2015, PTDC/MAREST/6053/2014, UID/Multi/04326/2013]
dc.identifier.doi10.1016/j.aquabot.2017.02.006
dc.identifier.issn0304-3770
dc.identifier.issn1879-1522
dc.identifier.urihttp://hdl.handle.net/10400.1/13191
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Science Bv
dc.subjectMacroalgal spore dispersal
dc.subjectIntertidal rock pools
dc.subjectLarge brown seaweeds
dc.subjectLaminaria-ochroleuca
dc.subjectMacrocystis-pyrifera
dc.subjectSouthern-california
dc.subjectGiant-kelp
dc.subjectEl-Nino
dc.subjectCoastal environments
dc.subjectMicroscopic stages
dc.titlePopulation dynamics of temperate kelp forests near their low-latitude limit
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAAC-CLI%2F109108%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.citation.endPage18
oaire.citation.startPage8
oaire.citation.titleAquatic Botany
oaire.citation.volume139
oaire.fundingStream3599-PPCDT
oaire.fundingStream5876
person.familyNameRibeiro Pereira
person.familyNameEngelen
person.familyNamePearson
person.familyNameSerrao
person.givenNameTânia
person.givenNameAschwin
person.givenNameGareth Anthony
person.givenNameEster A.
person.identifier113536
person.identifierC-6686-2012
person.identifier.ciencia-idBB19-8187-EC7D
person.identifier.ciencia-id911A-9A0C-744D
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0002-4217-6069
person.identifier.orcid0000-0002-9579-9606
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridM-3432-2013
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id6701622770
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7004093604
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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