Niche shift versus niche conservatism? Climatic characteristics of the native and invasive ranges of the Mediterranean house gecko (Hemidactylus turcicus)
Identifieur interne : 000E69 ( Main/Curation ); précédent : 000E68; suivant : 000E70Niche shift versus niche conservatism? Climatic characteristics of the native and invasive ranges of the Mediterranean house gecko (Hemidactylus turcicus)
Auteurs : Dennis Rödder [Allemagne] ; Stefan Lötters [Allemagne]Source :
- Global Ecology and Biogeography [ 1466-822X ] ; 2009-11.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Amérique du Nord, Climat.
English descriptors
- KwdEn :
- Bioclimate, Bioclimatic variables, Biogeography, Climate, Climatic condition, Ecological niche, Ecology, Gekkonidae, Hemidactylus turcicus, Introduced species, Invasive species, Maxent, Mediterranean, Modeling, Native species, North America, Variable, ecological niche modelling, exotic species, fundamental niche, niche shift, realized niche.
Abstract
Aim The use of ecological niche models (ENMs) to predict potential distributions of species is steadily increasing. A necessary assumption is that climatic niches are conservative, but recent findings of niche shifts during biological invasion indicate that this assumption is not always valid. Selection of predictor variables may be one reason for the observed shifts. In this paper we assess differences in climatic niches in the native and invaded ranges of the Mediterranean house gecko (Hemidactylus turcicus) in terms of commonly applied climate variables in ENMs. We analyse which variables are more conserved versus relaxed (i.e. subject to niche shift). Furthermore, we study the predictive power of different sets of climate variables.
Url:
DOI: 10.1111/j.1466-8238.2009.00477.x
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A necessary assumption is that climatic niches are conservative, but recent findings of niche shifts during biological invasion indicate that this assumption is not always valid. Selection of predictor variables may be one reason for the observed shifts. In this paper we assess differences in climatic niches in the native and invaded ranges of the Mediterranean house gecko (Hemidactylus turcicus) in terms of commonly applied climate variables in ENMs. We analyse which variables are more conserved versus relaxed (i.e. subject to niche shift). Furthermore, we study the predictive power of different sets of climate variables.</div></front></TEI><double idat="1466-822X:2009:Rodder D:niche:shift:versus"><INIST><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Niche shift versus niche conservatism? 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Climatic characteristics of the native and invasive ranges of the Mediterranean house gecko (Hemidactylus turcicus)</title><author><name sortKey="Rodder, Dennis" sort="Rodder, Dennis" uniqKey="Rodder D" first="Dennis" last="Rödder">Dennis Rödder</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160</s1><s2>53113 Bonn</s2><s3>DEU</s3><sZ>1 aut.</sZ></inist:fA14><country>Allemagne</country><placeName><region type="land" nuts="1">Rhénanie-du-Nord-Westphalie</region><region type="district" nuts="2">District de Cologne</region><settlement type="city">Bonn</settlement></placeName></affiliation><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Biogeography Department, University of Trier</s1><s2>54286 Trier</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>54286 Trier</wicri:noRegion><placeName><settlement type="city">Trèves (Allemagne)</settlement><region type="land" nuts="1">Rhénanie-Palatinat</region></placeName><orgName type="university">Université de Trèves</orgName></affiliation></author><author><name sortKey="Lotters, Stefan" sort="Lotters, Stefan" uniqKey="Lotters S" first="Stefan" last="Lötters">Stefan Lötters</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Biogeography Department, University of Trier</s1><s2>54286 Trier</s2><s3>DEU</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Allemagne</country><wicri:noRegion>54286 Trier</wicri:noRegion><placeName><settlement type="city">Trèves (Allemagne)</settlement><region type="land" nuts="1">Rhénanie-Palatinat</region></placeName><orgName type="university">Université de Trèves</orgName></affiliation></author></analytic><series><title level="j" type="main">Global ecology and biogeography : (Print)</title><title level="j" type="abbreviated">Glob. ecol. biogeogr. : (Print)</title><idno type="ISSN">1466-822X</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Global ecology and biogeography : (Print)</title><title level="j" type="abbreviated">Glob. ecol. biogeogr. : (Print)</title><idno type="ISSN">1466-822X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bioclimate</term><term>Biogeography</term><term>Climate</term><term>Climatic condition</term><term>Ecological niche</term><term>Ecology</term><term>Hemidactylus turcicus</term><term>Introduced species</term><term>Invasive species</term><term>Modeling</term><term>Native species</term><term>North America</term><term>Variable</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Niche écologique</term><term>Climat</term><term>Condition climatique</term><term>Espèce indigène</term><term>Espèce envahissante</term><term>Bioclimat</term><term>Variable</term><term>Modélisation</term><term>Espèce introduite</term><term>Amérique du Nord</term><term>Biogéographie</term><term>Ecologie</term><term>Hemidactylus turcicus</term><term>Gekkonidae</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Climat</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Aim The use of ecological niche models (ENMs) to predict potential distributions of species is steadily increasing. A necessary assumption is that climatic niches are conservative, but recent findings of niche shifts during biological invasion indicate that this assumption is not always valid. Selection of predictor variables may be one reason for the observed shifts. In this paper we assess differences in climatic niches in the native and invaded ranges of the Mediterranean house gecko (Hemidactylus turcicus) in terms of commonly applied climate variables in ENMs. We analyse which variables are more conserved versus relaxed (i.e. subject to niche shift). Furthermore, we study the predictive power of different sets of climate variables. Location The Mediterranean region and North America. Methods We developed models using Maxent and various subsets of variables out of 19 bioclimatic layers including: (1) two subsets comprising almost all variables excluding only highly collinear ones; (2) two subsets with minimalistic variable sets of water availability and energy measures; (3) two subsets focused on temperature-related parameters; (4) two subsets with precipitation-related parameters ; and (5) one subset comprising variables combining temperature and precipitation characteristics. Occurrence data from the native Mediterranean range were used to predict the potential introduced range in North America and vice versa. Degrees of niche similarity and conservatism were assessed using both Schoener's index and Hellinger distances. The significance of the results was tested using null models. Results The degree of niche similarity and conservatism varied greatly among the predictors and variable sets applied. Shifts observed in some variables could be attributed to active habitat selection while others apparently reflected background effects. Main conclusions The study was based on comprehensive occurrence data from all regions where Hemidactylus turcicus is present in Europe and North America, providing a robust foundation. Our results clearly indicate that the degree of conservatism of niches in H. turcicus largely varies among predictors and variable sets applied. Therefore, the extent of niche conservatism of variables applied should always be tested in ENMs. This has an important impact on studies of biological invasion, impacts of climate change and niche evolution.</div></front></TEI></INIST><ISTEX><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Niche shift versus niche conservatism? Climatic characteristics of the native and invasive ranges of the Mediterranean house gecko (Hemidactylus turcicus)</title><author><name sortKey="Rodder, Dennis" sort="Rodder, Dennis" uniqKey="Rodder D" first="Dennis" last="Rödder">Dennis Rödder</name></author><author><name sortKey="Lotters, Stefan" sort="Lotters, Stefan" uniqKey="Lotters S" first="Stefan" last="Lötters">Stefan Lötters</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:C2603E49B7AF016B836A5C03986CA6722C8741C7</idno><date when="2009" year="2009">2009</date><idno type="doi">10.1111/j.1466-8238.2009.00477.x</idno><idno type="url">https://api.istex.fr/document/C2603E49B7AF016B836A5C03986CA6722C8741C7/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001263</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001263</idno><idno type="wicri:Area/Istex/Curation">001151</idno><idno type="wicri:Area/Istex/Checkpoint">000416</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000416</idno><idno type="wicri:doubleKey">1466-822X:2009:Rodder D:niche:shift:versus</idno><idno type="wicri:Area/Main/Merge">000F43</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Niche shift versus niche conservatism? Climatic characteristics of the native and invasive ranges of the Mediterranean house gecko (Hemidactylus turcicus)</title><author><name sortKey="Rodder, Dennis" sort="Rodder, Dennis" uniqKey="Rodder D" first="Dennis" last="Rödder">Dennis Rödder</name><affiliation></affiliation><affiliation wicri:level="4"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Biogeography Department, University of Trier, D‐54286 Trier</wicri:regionArea><orgName type="university">Université de Trèves</orgName><placeName><settlement type="city">Trèves (Allemagne)</settlement><region type="land" nuts="1">Rhénanie-Palatinat</region></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Allemagne</country></affiliation></author><author><name sortKey="Lotters, Stefan" sort="Lotters, Stefan" uniqKey="Lotters S" first="Stefan" last="Lötters">Stefan Lötters</name><affiliation wicri:level="4"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Biogeography Department, University of Trier, D‐54286 Trier</wicri:regionArea><orgName type="university">Université de Trèves</orgName><placeName><settlement type="city">Trèves (Allemagne)</settlement><region type="land" nuts="1">Rhénanie-Palatinat</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Global Ecology and Biogeography</title><idno type="ISSN">1466-822X</idno><idno type="eISSN">1466-8238</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2009-11">2009-11</date><biblScope unit="volume">18</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="674">674</biblScope><biblScope unit="page" to="687">687</biblScope></imprint><idno type="ISSN">1466-822X</idno></series><idno type="istex">C2603E49B7AF016B836A5C03986CA6722C8741C7</idno><idno type="DOI">10.1111/j.1466-8238.2009.00477.x</idno><idno type="ArticleID">GEB477</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1466-822X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bioclimatic variables</term><term>Gekkonidae</term><term>Maxent</term><term>Mediterranean</term><term>North America</term><term>ecological niche modelling</term><term>exotic species</term><term>fundamental niche</term><term>niche shift</term><term>realized niche</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Amérique du Nord</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Aim The use of ecological niche models (ENMs) to predict potential distributions of species is steadily increasing. A necessary assumption is that climatic niches are conservative, but recent findings of niche shifts during biological invasion indicate that this assumption is not always valid. Selection of predictor variables may be one reason for the observed shifts. In this paper we assess differences in climatic niches in the native and invaded ranges of the Mediterranean house gecko (Hemidactylus turcicus) in terms of commonly applied climate variables in ENMs. We analyse which variables are more conserved versus relaxed (i.e. subject to niche shift). Furthermore, we study the predictive power of different sets of climate variables.</div></front></TEI></ISTEX></double></record>Pour manipuler ce document sous Unix (Dilib)
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