Plant species biogeographic origin shapes their current and future distribution on the world's highest island mountain

Abstract

Holme et al., 2015). At higher elevations increased temperature may increase diversity but with limits imposed by available area as mountains taper (Dullinger et al., 2012;Elsen & Tingley, 2015). In addition,

Leveraging natural history collections to understand the impacts of global change

“…Borneo, Sumatra, Java, Mainland Asia) are more likely to occur in warmer lowlands and species of Sahul origin (New Guinea and Australia) species are more likely to occur in cooler higher elevation sites. Trethowan et al's (2023) In Journal of Ecology, Harris et al (2023) compiled traits of African angiosperm species to estimate trait hypervolumes. They then used hierarchical clustering to identify 12 potential biogeographic regions and map them.…”

“…In this Special Feature, Shirey et al (2023), in Methods in Ecology and Evolution , develop a set of best practices and a workflow to look at how changes in the occupancy and detection of species, along with collector frequency, influence model performance for datasets with presence‐only records. Trethowan et al (2023) in Journal of Ecology , use over 7000 herbarium specimens to assess how current and future climate change interact with biogeographic origin to shape species occurrence and richness of plants on Mount Jaya, in New Guinea, the tallest mountain on any island in the world. They found that species of Sunda origin (i.e.…”

“…Borneo, Sumatra, Java, Mainland Asia) are more likely to occur in warmer lowlands and species of Sahul origin (New Guinea and Australia) species are more likely to occur in cooler higher elevation sites. Trethowan et al's (2023) models suggest that Sahul species are also less likely to persist in the face of ongoing increases in temperature.…”

Do Southeast Asia's paleo‐Antarctic trees cool the planet?

“…2) supports the ongoing interchange of Asian and Australian biotas (Sniderman & Jordan, 2011; Morley, 2018; Kooyman et al ., 2019; Joyce et al ., 2021), a celebrated topic in biogeography since Wallace's seminal observations (Wallace, 1860). The diversity of austral plant lineages in Malesia and their general increase in abundance at higher elevations have been discussed since before plate tectonic theory (Stapf, 1894; Richards, 1943; van Steenis, 1964; Ashton, 2014; Brambach et al ., 2020; Trethowan et al ., 2022). The early phases of the collision (Fig.…”

“…Distributional patterns from a recent vegetation analysis of Mt. Jaya, Indonesian New Guinea, also show an increased prevalence and local dominance of southern‐sourced lineages with increasing elevation (Trethowan et al ., 2022).…”