Ecological and genecological distinctions of a high intertidal dwarf form of Fucus distichus (L.) Powell in New England
Identifieur interne : 005E27 ( Istex/Corpus ); précédent : 005E26; suivant : 005E28Ecological and genecological distinctions of a high intertidal dwarf form of Fucus distichus (L.) Powell in New England
Auteurs : Eric J. Sideman ; Arthur C. MathiesonSource :
- Journal of Experimental Marine Biology and Ecology [ 0022-0981 ] ; 1983.
English descriptors
- KwdEn :
- Acta univ, Adjacent plant populations, Algal, Antonovics bradshaw, Atmospheric administration, Benthic algal vegetation, Biol, Borgesen, Burrows lodge, Distichus, Dwarf, Dwarf form, Dwarf forms, East coast, Easternmost shore, Edentatus, Edentutus, Eulittoral, Eulittoral zone, Experimental garden, Exposure scale, Fertile receptacles, Frequency distribution, Fucoid, Fucoid algae, Fucoid plants, Fucus, Fucus distichus, Gene flow, Genetic distinction, Genus fucus, Gigartina stellata, Growth rates, High frequency, High intertidal, Intertidal, Intertidal fucus distichus, Jaffrey point, Jonsson, Jorde klavestad, Lower littoral zone, Lower shore, Marine algae, Mathieson, Morphological variation, Mytilus edulis, National oceanic, Natural populations, Northeastern coast, Nova scotia, Other hand, Plant stature, Pool form, Pool fucus distichus, Pool plant, Population differentiation, Possible source, Present study, Progeny, Reproductive, Reproductive patterns, Reproductive phenology, Respective progeny, Schonbeck norton, Sensu powell, Several investigators, Sexual reproduction, Sideman, Sideman mathieson, Silva burrows, Smuttynose, Smuttynose island, Stature equivalencies, Tide tables, Upper eulittoral zone, Upper shore, Upper sublittoral zone, Vertical distribution, Wave exposure.
- Teeft :
- Acta univ, Adjacent plant populations, Algal, Antonovics bradshaw, Atmospheric administration, Benthic algal vegetation, Biol, Borgesen, Burrows lodge, Distichus, Dwarf, Dwarf form, Dwarf forms, East coast, Easternmost shore, Edentatus, Edentutus, Eulittoral, Eulittoral zone, Experimental garden, Exposure scale, Fertile receptacles, Frequency distribution, Fucoid, Fucoid algae, Fucoid plants, Fucus, Fucus distichus, Gene flow, Genetic distinction, Genus fucus, Gigartina stellata, Growth rates, High frequency, High intertidal, Intertidal, Intertidal fucus distichus, Jaffrey point, Jonsson, Jorde klavestad, Lower littoral zone, Lower shore, Marine algae, Mathieson, Morphological variation, Mytilus edulis, National oceanic, Natural populations, Northeastern coast, Nova scotia, Other hand, Plant stature, Pool form, Pool fucus distichus, Pool plant, Population differentiation, Possible source, Present study, Progeny, Reproductive, Reproductive patterns, Reproductive phenology, Respective progeny, Schonbeck norton, Sensu powell, Several investigators, Sexual reproduction, Sideman, Sideman mathieson, Silva burrows, Smuttynose, Smuttynose island, Stature equivalencies, Tide tables, Upper eulittoral zone, Upper shore, Upper sublittoral zone, Vertical distribution, Wave exposure.
Abstract
Abstract: Morphological, ecological, and genetic distinctions of a high intertidal, dwarf, non-tide pool member of the Fucus distichus (L.) Powell complex were assessed at an exposed site in southern Maine, U.S.A. Variation in plant stature from typical F. distichus ssp. edentatus (De la Pylaie) Powell to the dwarf form is continuous. On the other hand, measurements of reproductively mature plants collected throughout the eulittoral zone showed a bimodal pattern, i.e., there was a high frequency of dwarf forms (4–8 cm) and F. distichus ssp. edentatus (13–28 cm). The two forms have distinct reproductive phenologies: the dwarf plant exhibiting a unimodal reproductive maximum (fall), while F. distichus ssp. edentatus has pronounced bimodal reproductive maxima (spring and fall). Differences in stature and reproduction between the dwarf form and F. distichus ssp. edentatus were maintained when their respective progeny were grown under common environmental conditions. Thus, the differences are heritable rather than environmentally induced.
Url:
DOI: 10.1016/0022-0981(83)90142-9
Links to Exploration step
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<front><div type="abstract" xml:lang="en">Abstract: Morphological, ecological, and genetic distinctions of a high intertidal, dwarf, non-tide pool member of the Fucus distichus (L.) Powell complex were assessed at an exposed site in southern Maine, U.S.A. Variation in plant stature from typical F. distichus ssp. edentatus (De la Pylaie) Powell to the dwarf form is continuous. On the other hand, measurements of reproductively mature plants collected throughout the eulittoral zone showed a bimodal pattern, i.e., there was a high frequency of dwarf forms (4–8 cm) and F. distichus ssp. edentatus (13–28 cm). The two forms have distinct reproductive phenologies: the dwarf plant exhibiting a unimodal reproductive maximum (fall), while F. distichus ssp. edentatus has pronounced bimodal reproductive maxima (spring and fall). Differences in stature and reproduction between the dwarf form and F. distichus ssp. edentatus were maintained when their respective progeny were grown under common environmental conditions. Thus, the differences are heritable rather than environmentally induced.</div>
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<abstract>Abstract: Morphological, ecological, and genetic distinctions of a high intertidal, dwarf, non-tide pool member of the Fucus distichus (L.) Powell complex were assessed at an exposed site in southern Maine, U.S.A. Variation in plant stature from typical F. distichus ssp. edentatus (De la Pylaie) Powell to the dwarf form is continuous. On the other hand, measurements of reproductively mature plants collected throughout the eulittoral zone showed a bimodal pattern, i.e., there was a high frequency of dwarf forms (4–8 cm) and F. distichus ssp. edentatus (13–28 cm). The two forms have distinct reproductive phenologies: the dwarf plant exhibiting a unimodal reproductive maximum (fall), while F. distichus ssp. edentatus has pronounced bimodal reproductive maxima (spring and fall). Differences in stature and reproduction between the dwarf form and F. distichus ssp. edentatus were maintained when their respective progeny were grown under common environmental conditions. Thus, the differences are heritable rather than environmentally induced.</abstract>
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<notesStmt><note>Scientific Contribution Number 1216 from the New Hampshire Agricultural Experiment Station; also published as Jackson Estuarine Laboratory Contribution Number 140.</note>
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<abstract xml:lang="en"><p>Morphological, ecological, and genetic distinctions of a high intertidal, dwarf, non-tide pool member of the Fucus distichus (L.) Powell complex were assessed at an exposed site in southern Maine, U.S.A. Variation in plant stature from typical F. distichus ssp. edentatus (De la Pylaie) Powell to the dwarf form is continuous. On the other hand, measurements of reproductively mature plants collected throughout the eulittoral zone showed a bimodal pattern, i.e., there was a high frequency of dwarf forms (4–8 cm) and F. distichus ssp. edentatus (13–28 cm). The two forms have distinct reproductive phenologies: the dwarf plant exhibiting a unimodal reproductive maximum (fall), while F. distichus ssp. edentatus has pronounced bimodal reproductive maxima (spring and fall). Differences in stature and reproduction between the dwarf form and F. distichus ssp. edentatus were maintained when their respective progeny were grown under common environmental conditions. Thus, the differences are heritable rather than environmentally induced.</p>
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<head><ce:article-footnote><ce:label>☆</ce:label>
<ce:note-para>Scientific Contribution Number 1216 from the New Hampshire Agricultural Experiment Station; also published as Jackson Estuarine Laboratory Contribution Number 140.</ce:note-para>
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<ce:title>Ecological and genecological distinctions of a high intertidal dwarf form of <ce:italic>Fucus distichus</ce:italic>
(L.) Powell in New England</ce:title>
<ce:author-group><ce:author><ce:given-name>Eric J.</ce:given-name>
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<ce:note-para>Present address: Department of Biology, Bates College, Lewiston, Maine, 04240.</ce:note-para>
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<ce:abstract-sec><ce:simple-para>Morphological, ecological, and genetic distinctions of a high intertidal, dwarf, non-tide pool member of the <ce:italic>Fucus distichus</ce:italic>
(L.) Powell complex were assessed at an exposed site in southern Maine, U.S.A. Variation in plant stature from typical <ce:italic>F. distichus</ce:italic>
ssp. <ce:italic>edentatus</ce:italic>
(De la Pylaie) Powell to the dwarf form is continuous. On the other hand, measurements of reproductively mature plants collected throughout the eulittoral zone showed a bimodal pattern, i.e., there was a high frequency of dwarf forms (4–8 cm) and <ce:italic>F. distichus</ce:italic>
ssp. <ce:italic>edentatus</ce:italic>
(13–28 cm). The two forms have distinct reproductive phenologies: the dwarf plant exhibiting a unimodal reproductive maximum (fall), while <ce:italic>F. distichus</ce:italic>
ssp. <ce:italic>edentatus</ce:italic>
has pronounced bimodal reproductive maxima (spring and fall). Differences in stature and reproduction between the dwarf form and <ce:italic>F. distichus</ce:italic>
ssp. <ce:italic>edentatus</ce:italic>
were maintained when their respective progeny were grown under common environmental conditions. Thus, the differences are heritable rather than environmentally induced.</ce:simple-para>
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<abstract lang="en">Abstract: Morphological, ecological, and genetic distinctions of a high intertidal, dwarf, non-tide pool member of the Fucus distichus (L.) Powell complex were assessed at an exposed site in southern Maine, U.S.A. Variation in plant stature from typical F. distichus ssp. edentatus (De la Pylaie) Powell to the dwarf form is continuous. On the other hand, measurements of reproductively mature plants collected throughout the eulittoral zone showed a bimodal pattern, i.e., there was a high frequency of dwarf forms (4–8 cm) and F. distichus ssp. edentatus (13–28 cm). The two forms have distinct reproductive phenologies: the dwarf plant exhibiting a unimodal reproductive maximum (fall), while F. distichus ssp. edentatus has pronounced bimodal reproductive maxima (spring and fall). Differences in stature and reproduction between the dwarf form and F. distichus ssp. edentatus were maintained when their respective progeny were grown under common environmental conditions. Thus, the differences are heritable rather than environmentally induced.</abstract>
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