التفاصيل البيبلوغرافية
| العنوان: |
Understanding local adaptation and phenotypic plasticity in fitness-related traits across the European beech range : implications under climate change ; Comprendre l'adaptation locale et la plasticité phénotypique des caractères liés à la valeur adaptative dans l'aire de répartition du hêtre européen : implications en contexte de changement climatique |
| المؤلفون: |
Garate escamilla, Homero Alejandro |
| المساهمون: |
Bordeaux, Benito-Garzon, Marta, Hampe, Arndt |
| المصدر: |
Theses.fr |
| سنة النشر: |
2019 |
| مصطلحات موضوعية: |
Variabilité phénotypique, Acclimatation, Modèles de distribution des espèces, Jardins communs, Hêtre, Covariation des caractéristiques, Phenotypic variability, Acclimation, Species distribution models, Common gardens, Beech, Trait covariation, envir, geo |
| الوصف: |
Climate change is modifying the distribution ranges of species worldwide. To better understand and more realistically predict future species ranges, it is critical to account for local adaptation and phenotypic plasticity in populations’ responses to climate. This is challenging, however, because local adaptation and phenotypic plasticity are trait dependent and because traits co-vary along climatic gradients across the range, with differential consequences for fitness. One way to address this challenge is to build models with empirical data from large-scale common-garden experiments such as those that have been established in past decades for some forest tree species. This thesis used individual measurements of several fitness-related phenotypic traits (vertical and radial tree growth, spring and autumn leaf phenology and recruit mortality) of European beech (Fagus sylvatica L.) recorded in the frame of BeechCOSTe52, the largest network of tree phenotypic traits measured in common gardens throughout Europe (>150,000 trees) for modeling the species’ likely response to recent climate change. Specifically, I pursued the following objectives: (i) to quantify range-wide variation and co-variation of local adaptation and phenotypic plasticity for four major phenotypic traits related to fitness (vertical growth, radial growth, survival, and leaf flushing phenology), and to project its species range under current and future climate based on this information (chapter 1); (ii) to quantify variation among populations in spring and autumn leaf phenology and the resulting growing season length, and to predict their patterns at the range-wide scale under current and future climate (chapter 2); and (iii) to quantify phenotypic plasticity at different development stages for vertical growth, radial growth, survival, and spring and autumn leaf flushing phenology, and to determine the extent to which inter-annual climate variation during the 20th century is related to variation in phenotypic plasticity across the species range ... |
| نوع الوثيقة: |
thesis |
| اللغة: |
English |
| العلاقة: |
10670/1.pe3d2k; http://www.theses.fr/2019BORD0403/documentTest |
| الإتاحة: |
http://www.theses.fr/2019BORD0403/documentTest |
| رقم الانضمام: |
edsbas.DF398DC2 |
| قاعدة البيانات: |
BASE |
