Developmental instability as an index of adaptation to drought stress in a Mediterranean oak
Identifieur interne : 000E45 ( Main/Exploration ); précédent : 000E44; suivant : 000E46Developmental instability as an index of adaptation to drought stress in a Mediterranean oak
Auteurs : P. Nuche [Espagne] ; B. Komac [Andorre] ; J. J. Camarero [Espagne] ; C. L. Alados [Espagne]Source :
- Ecological indicators [ 1470-160X ] ; 2014.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
An increase in temperature and water deficits caused by the ongoing climate change might lead to a decline growth rates and threaten the persistence of tree species in drought-prone areas within the Mediterranean Basin. Developmental instability (the error in development caused by stress) may provide an index of the adaptability of woody plants to withstand climatic stressors such as water shortage. This study evaluated the effects of drought stress on growth variables in three stands of a Mediterranean oak (Quercus faginea) exposed to differing climatic conditions (xeric, mesic and cooler) along an altitudinal gradient in northeastern Spain, in two climatically contrasting years (wet and dry years). Two indices of developmental instability, fluctuating and translational asymmetries, which reflect environmental stress, were measured in leaves and current-year shoots, respectively. We also measured branch biomass and fractal complexity of branches as indicators of the species' performance. After a period of drought the individuals' at the most xeric site presented lower developmental instability and less branch biomass than did the individuals from the mesic and cooler sites. We interpret that difference as an adaptive response to drought which reflects a trade-off between maintenance of homeostasis and growth when water is scarce. The study demonstrated that developmental instability constitutes a useful index to assess the degree of adaptation to stressful environmental conditions. The assessment of developmental instability in sites and years with contrasting climatic conditions provides a means of quantifying the capacity of plants to develop plastic adaptive responses to climatic stress.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000024
- to stream PascalFrancis, to step Curation: 000980
- to stream PascalFrancis, to step Checkpoint: 000020
- to stream Main, to step Merge: 000E37
- to stream Main, to step Curation: 000E45
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Developmental instability as an index of adaptation to drought stress in a Mediterranean oak</title><author><name sortKey="Nuche, P" sort="Nuche, P" uniqKey="Nuche P" first="P." last="Nuche">P. Nuche</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034</s1><s2>50059 Zaragoza</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Aragon</region></placeName></affiliation></author><author><name sortKey="Komac, B" sort="Komac, B" uniqKey="Komac B" first="B." last="Komac">B. Komac</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Centre d'Estudis de la Neu i la Muntanya d'Andorra (CENMA - IEA), Avinguda Rocafort 21-23</s1><s2>Sant Julià de Lòria</s2><s3>AND</s3><sZ>2 aut.</sZ></inist:fA14><country>Andorre</country><wicri:noRegion>Sant Julià de Lòria</wicri:noRegion></affiliation></author><author><name sortKey="Camarero, J J" sort="Camarero, J J" uniqKey="Camarero J" first="J. J." last="Camarero">J. J. Camarero</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>ARAID-Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034</s1><s2>50059 Zaragoza</s2><s3>ESP</s3><sZ>3 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Aragon</region></placeName></affiliation><affiliation wicri:level="4"><inist:fA14 i1="04"><s1>Departament d'Ecologia, Universitat de Barcelona, Avda. Diagonal 645</s1><s2>08028 Barcelona</s2><s3>ESP</s3><sZ>3 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Catalogne</region><settlement type="city">Barcelone</settlement></placeName><orgName type="university">Université de Barcelone</orgName></affiliation></author><author><name sortKey="Alados, C L" sort="Alados, C L" uniqKey="Alados C" first="C. L." last="Alados">C. L. Alados</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034</s1><s2>50059 Zaragoza</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Aragon</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">14-0083672</idno><date when="2014">2014</date><idno type="stanalyst">PASCAL 14-0083672 INIST</idno><idno type="RBID">Pascal:14-0083672</idno><idno type="wicri:Area/PascalFrancis/Corpus">000024</idno><idno type="wicri:Area/PascalFrancis/Curation">000980</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000020</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000020</idno><idno type="wicri:doubleKey">1470-160X:2014:Nuche P:developmental:instability:as</idno><idno type="wicri:Area/Main/Merge">000E37</idno><idno type="wicri:Area/Main/Curation">000E45</idno><idno type="wicri:Area/Main/Exploration">000E45</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Developmental instability as an index of adaptation to drought stress in a Mediterranean oak</title><author><name sortKey="Nuche, P" sort="Nuche, P" uniqKey="Nuche P" first="P." last="Nuche">P. Nuche</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034</s1><s2>50059 Zaragoza</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Aragon</region></placeName></affiliation></author><author><name sortKey="Komac, B" sort="Komac, B" uniqKey="Komac B" first="B." last="Komac">B. Komac</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Centre d'Estudis de la Neu i la Muntanya d'Andorra (CENMA - IEA), Avinguda Rocafort 21-23</s1><s2>Sant Julià de Lòria</s2><s3>AND</s3><sZ>2 aut.</sZ></inist:fA14><country>Andorre</country><wicri:noRegion>Sant Julià de Lòria</wicri:noRegion></affiliation></author><author><name sortKey="Camarero, J J" sort="Camarero, J J" uniqKey="Camarero J" first="J. J." last="Camarero">J. J. Camarero</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>ARAID-Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034</s1><s2>50059 Zaragoza</s2><s3>ESP</s3><sZ>3 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Aragon</region></placeName></affiliation><affiliation wicri:level="4"><inist:fA14 i1="04"><s1>Departament d'Ecologia, Universitat de Barcelona, Avda. Diagonal 645</s1><s2>08028 Barcelona</s2><s3>ESP</s3><sZ>3 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Catalogne</region><settlement type="city">Barcelone</settlement></placeName><orgName type="university">Université de Barcelone</orgName></affiliation></author><author><name sortKey="Alados, C L" sort="Alados, C L" uniqKey="Alados C" first="C. L." last="Alados">C. L. Alados</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034</s1><s2>50059 Zaragoza</s2><s3>ESP</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Espagne</country><placeName><region nuts="2" type="communauté">Aragon</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Ecological indicators</title><idno type="ISSN">1470-160X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Ecological indicators</title><idno type="ISSN">1470-160X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation</term><term>Development</term><term>Ecological indicator</term><term>Environmental monitoring</term><term>Environmental protection</term><term>Fractal dimension</term><term>Mediterranean region</term><term>Phenotypic plasticity</term><term>Water stress</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Développement</term><term>Adaptation</term><term>Stress hydrique</term><term>Dimension fractale</term><term>Plasticité phénotypique</term><term>Surveillance écologique</term><term>Protection environnement</term><term>Région méditerranéenne</term><term>Indicateur écologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An increase in temperature and water deficits caused by the ongoing climate change might lead to a decline growth rates and threaten the persistence of tree species in drought-prone areas within the Mediterranean Basin. Developmental instability (the error in development caused by stress) may provide an index of the adaptability of woody plants to withstand climatic stressors such as water shortage. This study evaluated the effects of drought stress on growth variables in three stands of a Mediterranean oak (Quercus faginea) exposed to differing climatic conditions (xeric, mesic and cooler) along an altitudinal gradient in northeastern Spain, in two climatically contrasting years (wet and dry years). Two indices of developmental instability, fluctuating and translational asymmetries, which reflect environmental stress, were measured in leaves and current-year shoots, respectively. We also measured branch biomass and fractal complexity of branches as indicators of the species' performance. After a period of drought the individuals' at the most xeric site presented lower developmental instability and less branch biomass than did the individuals from the mesic and cooler sites. We interpret that difference as an adaptive response to drought which reflects a trade-off between maintenance of homeostasis and growth when water is scarce. The study demonstrated that developmental instability constitutes a useful index to assess the degree of adaptation to stressful environmental conditions. The assessment of developmental instability in sites and years with contrasting climatic conditions provides a means of quantifying the capacity of plants to develop plastic adaptive responses to climatic stress.</div></front></TEI><affiliations><list><country><li>Andorre</li><li>Espagne</li></country><region><li>Aragon</li><li>Catalogne</li></region><settlement><li>Barcelone</li></settlement><orgName><li>Université de Barcelone</li></orgName></list><tree><country name="Espagne"><region name="Aragon"><name sortKey="Nuche, P" sort="Nuche, P" uniqKey="Nuche P" first="P." last="Nuche">P. Nuche</name></region><name sortKey="Alados, C L" sort="Alados, C L" uniqKey="Alados C" first="C. L." last="Alados">C. L. Alados</name><name sortKey="Camarero, J J" sort="Camarero, J J" uniqKey="Camarero J" first="J. J." last="Camarero">J. J. Camarero</name><name sortKey="Camarero, J J" sort="Camarero, J J" uniqKey="Camarero J" first="J. J." last="Camarero">J. J. Camarero</name></country><country name="Andorre"><noRegion><name sortKey="Komac, B" sort="Komac, B" uniqKey="Komac B" first="B." last="Komac">B. Komac</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/InforLorV4/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000E45 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000E45 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Lorraine
|area= InforLorV4
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:14-0083672
|texte= Developmental instability as an index of adaptation to drought stress in a Mediterranean oak
}}
| This area was generated with Dilib version V0.6.33. |  |