Phylogenetic and functional clustering illustrate the roles of adaptive radiation and dispersal filtering in jointly shaping late-Quaternary mammal assemblages on oceanic islands

Title: Phylogenetic and functional clustering illustrate the roles of adaptive radiation and dispersal filtering in jointly shaping late-Quaternary mammal assemblages on oceanic islands

Journal: Ecology Letters

Authors: Xingfeng Si, Marc W. Cadotte, T. Jonathan Davies, Alexandre Antonelli, Ping Ding, Jens-Christian Svenning, Søren Faurby

Data description

Island variables were obtained from Weigelt et al. (2013) and UNEP (http://islands.unep.ch), mammal occurrence data and phylogeny from the PHYLACINE 1.2 database (Faurby et al. 2018), and mammal trait data from Faurby et al. (2018), Wilman et al. (2014), and Healy et al. (2014).

island.csv

- Island.ID: island IDs

- Latitude: the latitude of the island

- Longitude: the longitude of the island

- Name: the name of the island

- Geology: oceanic or continental. Oceanic islands were defined as volcanic islands that emerged from the oceanic floor or continental islands that occur in the world’s oceans, and which were not connected to larger islands or nearby continental landmasses during the Last Glacial Maximum (LGM). Continental islands were defined as continental plate fragments which have been isolated during the LGM. In this study, all continental fragments (e.g., New Guinea, Borneo, Great Britain, and Hainan Island) and volcanic islands (e.g., Honshu and Kyushu Islands of Japan, Kefallinia and Ikaria Islands of Greece) that were attached to larger islands or continental landmasses during the LGM were excluded.

- Area: Island area (km²) was measured as the polygon area of landmass surrounded by ocean using a cylindrical equal-area projection (Weigelt et al. 2013)

- Isolation: Isolation (km) was calculated as the distance from an island’s mass centroid to the nearest mainland coast (excluding Antarctica which is covered by ice permanently) (Weigelt et al. 2013)

- Temperature: maximum values per island polygon of mean annual temperature (°C). Specifically, temperature was transformed as: –1 × log₁₀(max(x) + 1 – x), where max(x) is the maximum value of temperature (in °C) for included islands, to avoid non-positive values in log₁₀-transformation.

- Precipitation: maximum values per island polygon of mean annual precipitation (mm). Precipitation was rescaled as x/1000, where x is the original value of precipitation in millimetres

mammal.occurrence.csv

- Island.ID: island IDs

mammal.phylo.txt

- obtain from PHYLACINE 1.2 database

mammal.trait.csv

- Latin.name: Latin names of mammal species

- Mass: body mass (grams, log₁₀-transformed)

- Diet.Plant, Diet.Vertebrate, Diet.Invertebrate: the percentage of three categories (i.e., vertebrate prey, invertebrate prey, and plants)

- ForStrat.Value: Foraging stratum was coded as aerial, arboreal, ground level, or fossorial.

- Activity: The timing of daily foraging activity was coded as diurnal, nocturnal, crepuscular (active at dusk and dawn), or cathemeral (active at any time of day)