Functional acclimation across microgeographic scales in Dodonaea viscosa
| Autor: | Alice R. Jones, Kathryn Hill, Stefan Caddy-Retalic, Matthew J. Christmas, Irene Martín-Forés, Martin F. Breed, Zdravko Baruch, Colette Blyth, Andrew J. Lowe, Francesca A. McInerney, Nicholas J. C. Gellie, Kristine E. Nielson |
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| Přispěvatelé: | Australian Research Council, Australian Academy of Science |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Adaptive capacity Specific leaf area Plasticity Range (biology) ved/biology.organism_classification_rank.species Population microgeography Plant Science Biology 010603 evolutionary biology 01 natural sciences Shrub Intraspecific competition Evolutionsbiologi South Australia common garden experiment functional traits education Ekologi Common garden experiments Evolutionary Biology education.field_of_study Phenotypic plasticity Ecology ved/biology 15. Life on land shrubs Microgeography plasticity Trait Ordination Shrubs Functional traits 010606 plant biology & botany |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | © The Author(s) 2018. Intraspecific plant functional trait variation provides mechanistic insight into persistence and can infer population adaptive capacity. However, most studies explore intraspecific trait variation in systems where geographic and environmental distances co-vary. Such a design reduces the certainty of trait–environment associations, and it is imperative for studies that make trait–environment associations be conducted in systems where environmental distance varies independently of geographic distance. Here we explored trait variation in such a system, and aimed to: (i) quantify trait variation of parent and offspring generations, and associate this variation to parental environments; (ii) determine the traits which best explain population differences; (iii) compare parent and offspring trait–trait relationships. We characterized 15 plant functional traits in eight populations of a shrub with a maximum separation ca. 100 km. Populations differed markedly in aridity and elevation, and environmental distance varied independently of geographic distance. We measured traits in parent populations collected in the field, as well as their offspring reared in greenhouse conditions. Parent traits regularly associated with their environment. These associations were largely lost in the offspring generation, indicating considerable phenotypic plasticity. An ordination of parent traits showed clear structure with strong influence of leaf area, specific leaf area, stomatal traits, isotope δ13C and δ15N ratios, and Narea, whereas the offspring ordination was less structured. Parent trait–trait correlations were in line with expectations from the leaf economic spectrum. We show considerable trait plasticity in the woody shrub over microgeographic scales ( This work was supported by Australian Research Council funding (DE150100542 awarded to M.F.B.; DP150103414 awarded to M.F.B. and A.J.L.), and a Thomas Davies Research Fund grant from the Australian Academy of Science to M.F.B. (grant number 201408410176). |
| Databáze: | OpenAIRE |
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