Zonation of vegetation on lacustrine coastal dunes: effects of burial by sand
Identifieur interne : 004174 ( Istex/Checkpoint ); précédent : 004173; suivant : 004175Zonation of vegetation on lacustrine coastal dunes: effects of burial by sand
Auteurs : M. A. Maun [Canada] ; J. Perumal [Canada]Source :
- Ecology Letters [ 1461-023X ] ; 1999-01.
English descriptors
- KwdEn :
- Ammophila breviligulata, Anwar maun, Artificial burial, Barbour, Barbour dejong, Blackwell science, Blackwell science paper, Burial, Burial depth, Burial treatments, Cakile edentula, Calamovilfa longifolia, Coastal, Coastal dunes, Coastal foredunes, Corispermum hyssopifolium, Data analysis, Deposition, Different depths, Differential tolerance, Disc zonation, Dune, Elymus canadensis, Environmental stresses, Euphorbia polygonifolia, Functional diversity, High precipitation, Important factors, Lake erie, Linear decline, Maun, Moreno casasola, Null hypothesis, Panicum virgatum, Particular reference, Perennial species, Plant communities, Plant species, Polynomial regressions, Releve ordination, Salinity, Salt hypothesis, Salt spray, Salt tolerance, Sand deposition, Sand dunes, Sand movement, Seawater inundation, Secondary role, Slight stimulation, Species distribution, Species zonation, Strophostyles helvola, Temperate regions, Temperate regions salt, Toxic levels, Western ontario, Xanthium strumarium, Zealand sand dune species, Zonation.
- Teeft :
- Ammophila breviligulata, Anwar maun, Artificial burial, Barbour, Barbour dejong, Blackwell science, Blackwell science paper, Burial, Burial depth, Burial treatments, Cakile edentula, Calamovilfa longifolia, Coastal, Coastal dunes, Coastal foredunes, Corispermum hyssopifolium, Data analysis, Deposition, Different depths, Differential tolerance, Disc zonation, Dune, Elymus canadensis, Environmental stresses, Euphorbia polygonifolia, Functional diversity, High precipitation, Important factors, Lake erie, Linear decline, Maun, Moreno casasola, Null hypothesis, Panicum virgatum, Particular reference, Perennial species, Plant communities, Plant species, Polynomial regressions, Releve ordination, Salinity, Salt hypothesis, Salt spray, Salt tolerance, Sand deposition, Sand dunes, Sand movement, Seawater inundation, Secondary role, Slight stimulation, Species distribution, Species zonation, Strophostyles helvola, Temperate regions, Temperate regions salt, Toxic levels, Western ontario, Xanthium strumarium, Zealand sand dune species, Zonation.
Abstract
More than 50 years ago it was proposed that zonation of major plant species on coastal dunes was determined by salt spray. Here, we argue against this hypothesis because (i) salt concentrations rarely exceed toxic levels; (ii) high precipitation in temperate latitudes washes the salt off the plants; (iii) major salt spray events occur in late autumn and winter when plants are dormant; and (iv) zonation also occurs on lacustrine dunes. Instead, we show evidence that zonation may be caused by burial because plant distribution was correlated with sand deposition and species were eliminated when burial exceeded their limits of tolerance, thus creating zones of different plant species. We conclude that in temperate regions (i) burial by sand may be among the most important factors in zonation, while salt spray may play a secondary role; and (ii) single environmental factors cannot be the determinants of a phenomenon as complex as species zonation.
Url:
DOI: 10.1046/j.1461-0248.1999.21048.x
Affiliations:
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ISTEX:57B790EF2B5B5A86137885C1CE0332043BCE70E7Le document en format XML
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Maun</name><affiliation wicri:level="1"><country>Canada</country><wicri:regionArea>Department of Plant Sciences, University of Western Ontario, London, Ontario</wicri:regionArea><wicri:noRegion>Ontario</wicri:noRegion></affiliation></author><author><name sortKey="Perumal, J" sort="Perumal, J" uniqKey="Perumal J" first="J." last="Perumal">J. Perumal</name><affiliation wicri:level="1"><country>Canada</country><wicri:regionArea>Department of Plant Sciences, University of Western Ontario, London, Ontario</wicri:regionArea><wicri:noRegion>Ontario</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Ecology Letters</title><title level="j" type="alt">ECOLOGY LETTERS</title><idno type="ISSN">1461-023X</idno><idno type="eISSN">1461-0248</idno><imprint><biblScope unit="vol">2</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="14">14</biblScope><biblScope unit="page" to="18">18</biblScope><biblScope unit="page-count">5</biblScope><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1999-01">1999-01</date></imprint><idno type="ISSN">1461-023X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1461-023X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammophila breviligulata</term><term>Anwar maun</term><term>Artificial burial</term><term>Barbour</term><term>Barbour dejong</term><term>Blackwell science</term><term>Blackwell science paper</term><term>Burial</term><term>Burial depth</term><term>Burial treatments</term><term>Cakile edentula</term><term>Calamovilfa longifolia</term><term>Coastal</term><term>Coastal dunes</term><term>Coastal foredunes</term><term>Corispermum hyssopifolium</term><term>Data analysis</term><term>Deposition</term><term>Different depths</term><term>Differential tolerance</term><term>Disc zonation</term><term>Dune</term><term>Elymus canadensis</term><term>Environmental stresses</term><term>Euphorbia polygonifolia</term><term>Functional diversity</term><term>High precipitation</term><term>Important factors</term><term>Lake erie</term><term>Linear decline</term><term>Maun</term><term>Moreno casasola</term><term>Null hypothesis</term><term>Panicum virgatum</term><term>Particular reference</term><term>Perennial species</term><term>Plant communities</term><term>Plant species</term><term>Polynomial regressions</term><term>Releve ordination</term><term>Salinity</term><term>Salt hypothesis</term><term>Salt spray</term><term>Salt tolerance</term><term>Sand deposition</term><term>Sand dunes</term><term>Sand movement</term><term>Seawater inundation</term><term>Secondary role</term><term>Slight stimulation</term><term>Species distribution</term><term>Species zonation</term><term>Strophostyles helvola</term><term>Temperate regions</term><term>Temperate regions salt</term><term>Toxic levels</term><term>Western ontario</term><term>Xanthium strumarium</term><term>Zealand sand dune species</term><term>Zonation</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Ammophila breviligulata</term><term>Anwar maun</term><term>Artificial burial</term><term>Barbour</term><term>Barbour dejong</term><term>Blackwell science</term><term>Blackwell science paper</term><term>Burial</term><term>Burial depth</term><term>Burial treatments</term><term>Cakile edentula</term><term>Calamovilfa longifolia</term><term>Coastal</term><term>Coastal dunes</term><term>Coastal foredunes</term><term>Corispermum hyssopifolium</term><term>Data analysis</term><term>Deposition</term><term>Different depths</term><term>Differential tolerance</term><term>Disc zonation</term><term>Dune</term><term>Elymus canadensis</term><term>Environmental stresses</term><term>Euphorbia polygonifolia</term><term>Functional diversity</term><term>High precipitation</term><term>Important factors</term><term>Lake erie</term><term>Linear decline</term><term>Maun</term><term>Moreno casasola</term><term>Null hypothesis</term><term>Panicum virgatum</term><term>Particular reference</term><term>Perennial species</term><term>Plant communities</term><term>Plant species</term><term>Polynomial regressions</term><term>Releve ordination</term><term>Salinity</term><term>Salt hypothesis</term><term>Salt spray</term><term>Salt tolerance</term><term>Sand deposition</term><term>Sand dunes</term><term>Sand movement</term><term>Seawater inundation</term><term>Secondary role</term><term>Slight stimulation</term><term>Species distribution</term><term>Species zonation</term><term>Strophostyles helvola</term><term>Temperate regions</term><term>Temperate regions salt</term><term>Toxic levels</term><term>Western ontario</term><term>Xanthium strumarium</term><term>Zealand sand dune species</term><term>Zonation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">More than 50 years ago it was proposed that zonation of major plant species on coastal dunes was determined by salt spray. Here, we argue against this hypothesis because (i) salt concentrations rarely exceed toxic levels; (ii) high precipitation in temperate latitudes washes the salt off the plants; (iii) major salt spray events occur in late autumn and winter when plants are dormant; and (iv) zonation also occurs on lacustrine dunes. Instead, we show evidence that zonation may be caused by burial because plant distribution was correlated with sand deposition and species were eliminated when burial exceeded their limits of tolerance, thus creating zones of different plant species. We conclude that in temperate regions (i) burial by sand may be among the most important factors in zonation, while salt spray may play a secondary role; and (ii) single environmental factors cannot be the determinants of a phenomenon as complex as species zonation.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Maun, M A" sort="Maun, M A" uniqKey="Maun M" first="M. A." last="Maun">M. A. Maun</name></noRegion><name sortKey="Perumal, J" sort="Perumal, J" uniqKey="Perumal J" first="J." last="Perumal">J. Perumal</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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