Colonization resistance and establishment success along gradients of functional and phylogenetic diversity in experimental plant communities

作者：Thomas Galland, Guillaume Adeux, Hana Dvořáková, Anna E‐Vojtkó, Ildikó Orbán, Michele Lussu, Javier Puy, Petr Blažek, Vojtěch Lanta, Jan Lepš, Francesco de Bello, Carlos P. Carmona, Enrique Valencia, Lars Götzenberger · 发表于：Journal of Ecology · 年份：2019 · DOI：10.1111/1365-2745.13246 · 被引用次数：51 · 研究领域：Ecology and Vegetation Dynamics Studies、Plant and animal studies、Lichen and fungal ecology

Abstract Functional and phylogenetic diversity (FD and PD respectively) of the resident community are expected to exert a key role in community resistance to colonization by surrounding species, and their establishment success. However, few studies have explored this topic experimentally or evaluated the interactive effects of these diversity measures. We implemented a diversity experiment to disentangle the role of FD and PD by sowing mixtures of 6 species, drawn from a pool of 19 species naturally coexisting in central European mesic meadows. The mixtures were designed to cover four independent combinations of high and low FD and PD. Species covers were estimated in spring and late summer over two growing seasons. We then assessed the establishment success of colonizers as a function of their mean traits and phylogenetic distance to the resident (i.e. sown) communities, as well as the resistance of the resident communities to natural colonizers as a function of their functional and phylogenetic structure. Results generally indicated a temporal shift regarding which trait values made a colonizer successful, from an acquisitive strategy in early stages to a more conservative trait syndrome in later stages. FD decreased community resistance to natural colonization. However, PD tempered this effect: with high PD, FD was not significant, suggesting complementary information between these two components of biodiversity. On average, colonizing species were more functionally distan...