Assembly of functional diversity in an oceanic island flora
2023
Barajas Barbosa, Martha Paola | Craven, Dylan | Weigelt, Patrick | Denelle, Pierre | Otto, Rüdiger | Díaz, Sandra Myrna | Price, Jonathan | Fernández Palacios, José María | Kreft, Holger
Oceanic island floras are well known for their morphological peculiarities and exhibit striking examples of trait evolution1–3. These morphological shifts are commonly attributed to insularity and are thought to be shaped by the biogeographical processes and evolutionary histories of oceanic islands2,4. However, the mechanisms through which biogeography and evolution have shaped the distribution and diversity of plant functional traits remain unclear5. Here we describe the functional trait space of the native flora of an oceanic island (Tenerife, Canary Islands, Spain) using extensive field and laboratory measurements, and relate it to global trade-offs in ecological strategies. We find that the island trait space exhibits a remarkable functional richness but that most plants are concentrated around a functional hotspot dominated by shrubs with a conservative life-history strategy. By dividing the island flora into species groups associated with distinct biogeographical distributions and diversification histories, our results also suggest that colonization via long-distance dispersal and the interplay between inter-island dispersal and archipelago-level speciation processes drive functional divergence and trait space expansion. Contrary to our expectations, speciation via cladogenesis has led to functional convergence, and therefore only contributes marginally to functional diversity by densely packing trait space around shrubs. By combining biogeography, ecology and evolution, our approach opens new avenues for trait-based insights into how dispersal, speciation and persistence shape the assembly of entire native island floras.
اظهر المزيد [+] اقل [-]Fil: Barajas Barbosa, Martha Paola. Martin-luther-Universität Halle-Wittenberg; Alemania. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig; Alemania. Universität Göttingen; Alemania
اظهر المزيد [+] اقل [-]Fil: Craven, Dylan. Data Observatory Foundation; Chile. Universidad Mayor; Chile
اظهر المزيد [+] اقل [-]Fil: Weigelt, Patrick. Universität Göttingen; Alemania
اظهر المزيد [+] اقل [-]Fil: Denelle, Pierre. Universität Göttingen; Alemania
اظهر المزيد [+] اقل [-]Fil: Otto, Rüdiger. Universidad de La Laguna; España
اظهر المزيد [+] اقل [-]Fil: Díaz, Sandra Myrna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
اظهر المزيد [+] اقل [-]Fil: Price, Jonathan. University Of Hawaii At Hilo; Estados Unidos
اظهر المزيد [+] اقل [-]Fil: Fernández Palacios, José María. Universidad de La Laguna; España
اظهر المزيد [+] اقل [-]Fil: Kreft, Holger. Universität Göttingen; Alemania
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Consejo Nacional de Investigaciones Científicas y Técnicas