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  • Convergence of three mangrove species towards freeze-tolerant phenotypes at an expanding range edge.

    Author(s) : Cook-Patton, S. C.Lehmann, M.Parker, J. D.

    Author Affiliation : Smithsonian Environmental Research Center, Edgewater, MD 21037, USA.

    Author Email : cookpatton@gmail.com

    Journal article : Functional Ecology 2015 Vol.29 No.10 pp.1332-1340 ref.many

    Abstract : Climate changeclimate changeSubject Category: Climate Related
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    is dramatically altering the distribution and abundance of many species. An examination of traits may elucidate why some species respond more strongly to climate change than others, particularly when ecophysiological thresholds set range limits. Mangrove forestsmangrove forestsSubject Category: Vegetation Types
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    are expanding polewards. Although multiple environmental factorsenvironmental factorsSubject Category: Properties
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    influence mangrove distributions, freeze tolerancetoleranceSubject Category: Properties
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    is hypothesized to determine their poleward extent. To investigate how trait variation influences mangrovesmangrovesSubject Category: Organism Groups
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    ' responses to a warming climate, we examined how freeze tolerance and associated traits varied along a latitudinal cline for three co-occurring mangrove species. We sampled individuals along >200 km of FloridafloridaSubject Category: Geographic Entities
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    , USA's eastern coast, from the mangroves' most northern populations, where freeze events were historically common, to southern populations where freeze events continue to be rare. We measured a suite of traits in field-collected adults and their garden-reared offspring, and assessed their responses to an experimentally imposed freeze event. We asked whether freeze tolerance and other traits varied predictably among species, with latitudelatitudeSubject Category: Miscellaneous
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    , and between life stages. Species and populations varied dramatically in freeze tolerance, with the highest freeze tolerance in the northernmost species and populations, and the lowest freeze tolerance in the southernmost species and populations. Additionally, leavesleavesSubject Category: Anatomical and Morphological Structures
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    of all three species were drier, tougher, thicker and more freeze-tolerant at the range edge. Tolerance to freezingfreezingSubject Category: Techniques, Methodologies and Equipment
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    appears to set the range limits for these mangrove species. All three species converged on a similar phenotype at the range edge, but species-level variation in freezing resistance was conserved. Thus, these species are likely to continue migrating at different rates in response to climate warming, potentially leading to the dissolution of typically co-occurring species and creating 'no analogue' coastal mangrove-marsh communitiescommunitiesSubject Category: Miscellaneous
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    .

    ISSN : 0269-8463

    DOI : 10.1111/1365-2435.12443

    Record Number : 20153350390

    Publisher : Wiley-Blackwell

    Location of publication : Oxford

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : AvicenniaavicenniaSubject Category: Organism Names
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    , Avicennia germinansavicennia germinansSubject Category: Organism Names
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    , LaguncularialagunculariaSubject Category: Organism Names
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    , Laguncularia racemosalaguncularia racemosaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , RhizophorarhizophoraSubject Category: Organism Names
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    , Rhizophora manglerhizophora mangleSubject Category: Organism Names
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    Descriptor(s) : climateclimateSubject Category: Climate Related
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    , climate changeclimate changeSubject Category: Climate Related
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    , coastal areascoastal areasSubject Category: Habitats
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    , cold resistancecold resistanceSubject Category: Properties
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    , communitiescommunitiesSubject Category: Miscellaneous
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    , dissolvingdissolvingSubject Category: Techniques, Methodologies and Equipment
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    , ecologyecologySubject Category: Disciplines, Occupations and Industries
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    , effectseffectsSubject Category: Properties
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    , environmental factorsenvironmental factorsSubject Category: Properties
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    , forestsforestsSubject Category: Habitats
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    , freezingfreezingSubject Category: Techniques, Methodologies and Equipment
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    , frost resistancefrost resistanceSubject Category: Properties
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    , latitudelatitudeSubject Category: Miscellaneous
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    , leavesleavesSubject Category: Anatomical and Morphological Structures
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    , mangrove forestsmangrove forestsSubject Category: Vegetation Types
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    , mangrovesmangrovesSubject Category: Organism Groups
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    , phenotypesphenotypesSubject Category: Miscellaneous
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    , tolerancetoleranceSubject Category: Properties
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    , treestreesSubject Category: Organism Groups
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    , woody plantswoody plantsSubject Category: Organism Groups
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    Identifier(s) : climatic change, cold hardiness, United States of America

    Geographical Location(s) : FloridafloridaSubject Category: Geographic Entities
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    , USAusaSubject Category: Geographic Entities
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    Broader term(s) : VerbenaceaeverbenaceaeSubject Category: Organism Names
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    , LamialeslamialesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , AvicenniaavicenniaSubject Category: Organism Names
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    , CombretaceaecombretaceaeSubject Category: Organism Names
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    , MyrtalesmyrtalesSubject Category: Organism Names
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    , LaguncularialagunculariaSubject Category: Organism Names
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    , RhizophoraceaerhizophoraceaeSubject Category: Organism Names
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    , MalpighialesmalpighialesSubject Category: Organism Names
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    , RhizophorarhizophoraSubject Category: Organism Names
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    , Gulf States of USAgulf states of usaSubject Category: Geographic Entities
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    , Southern States of USAsouthern states of usaSubject Category: Geographic Entities
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    , USAusaSubject Category: Geographic Entities
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    , APEC countriesapec countriesSubject Category: Institutions and Organisations
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    , Developed Countriesdeveloped countriesSubject Category: Miscellaneous
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    , North Americanorth americaSubject Category: Geographic Entities
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    , AmericaamericaSubject Category: Geographic Entities
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    , OECD Countriesoecd countriesSubject Category: Institutions and Organisations
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    , South Atlantic States of USAsouth atlantic states of usaSubject Category: Geographic Entities
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    , Southeastern States of USAsoutheastern states of usaSubject Category: Geographic Entities
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