Recent geospatial dynamics of Terceira (Azores, Portugal) and the theoretical implications for the biogeography of active volcanic islands

Rijsdijk, Kenneth F.; Buijs, S.; Quartau, Rui; Aguilée, Robin; Norder, Sietze J.; Medeiros, Sara; Nunes, Joana; Elias, Rui B.; Melo, Carlos; Stocchi, Paolo; Shinneman, Stacy; Koene, Erik; Seijmonsbergen, A.C.; Boer, W.M. De; Borges, Paulo A. V.

doi:10.21425/f5fbg45003

Cited by 2 publications

(1 citation statement)

References 55 publications

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“…Island age is an important variable in island biogeography, correlated to species richness (Whittaker et al, 2008); however, island age is challenging to accurately estimate (Rijsdijk et al, 2020;Price and Clague, 2002), and we do not have full coverage of age estimates for all islands in our dataset. Therefore, we ran a model for both NSR and the pSIE that includes island age as an additional fixed effect for the subset of oceanic islands where an age estimate was available (221 islands).…”

Section: Modeling the Biogeographical Drivers Of Island Diversitymentioning

confidence: 99%

Asteraceae in isolation: diversity and island biogeography of the largest plant family

Roeble,

van Benthem,

Weigelt

et al. 2024

Preprint

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The hyperdiverse plant family Asteraceae, with over 32,000 species globally, forms an iconic component of island floras, including many spectacular radiations, but a global picture of their insular diversity is lacking. Here, we uncover the global biogeographical and evolutionary patterns of Asteraceae on islands to reveal the magnitude and potential causes of their evolutionary success. We compile a global checklist of Asteraceae species native and endemic to islands and combine it with macroecological analyses and a phylogenetic review of island radiations. Asteraceae have a global distribution on islands, comprising approximately 6,000 native island species, with 58% endemics. Yet, diversity of the family on islands is lower than expected given its overall diversity. However, Asteraceae are the most diverse family on oceanic islands, suggesting an exceptional ability to thrive in isolation. In agreement with island biogeography predictions, native Asteraceae diversity increases with area and decreases with isolation, and endemism increases with both island area and isolation. The hotspots for insular diversity and endemism are Madagascar and the Caribbean, both being regions we identify as most lacking phylogenetic studies. We identify 39 confirmed island radiations, and 69 putative radiations that remain to be phylogenetically investigated, exceeding numbers for other iconic insular groups, such as birds. Our results reveal Asteraceae offer immense potential for research in ecology and evolution, due to their close tracking of island biogeography expectations, large sample sizes (species and radiations), cosmopolitan distribution, and high number of potentially undiscovered radiations.

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Section: Modeling the Biogeographical Drivers Of Island Diversitymentioning

confidence: 99%