An integrated high‐resolution mapping shows congruent biodiversity patterns of Fagales and Pinales

Abstract

Summary The documentation of biodiversity distribution through species range identification is crucial for macroecology, biogeography, conservation, and restoration. However, for plants, species range maps remain scarce and often inaccurate. We present a novel approach to map species ranges at a global scale, integrating polygon mapping and species distribution modelling (SDM). We develop a polygon mapping algorithm by considering distances and nestedness of occurrences. We further apply an SDM approach considering multiple modelling algorithms, complexity levels, and pseudo‐absence selections to map the species at a high spatial resolution and intersect it with the generated polygons. We use this approach to construct range maps for all 1957 species of Fagales and Pinales with data compilated from multiple sources. We construct high‐resolution global species richness maps of these important plant clades, and document diversity hotspots for both clades in southern and south‐western China, Central America, and Borneo. We validate the approach with two representative genera, Quercus and Pinus, using previously published coarser range maps, and find good agreement. By efficiently producing high‐resolution range maps, our mapping approach offers a new tool in the field of macroecology for studying global species distribution patterns and supporting ongoing conservation efforts.

Spatial phylogenetics of Fagales: Investigating the history of temperate forests

“…2c). Species richness patterns recovered here overall compare closely to those reported in Fagales in a recent methodological contribution (Lyu et al, 2022).…”

“…Western and central Europe formed an additional hotspot of species richness that could represent sampling intensity bias. However, high species richness in this area has been identified before in Fagales (Lyu et al, 2022) and is also reflected in a recent investigation of actinorhizal RNS species including Fagales (Tamme et al, 2021: Fig. 2c).…”

“…While diversity mapping has seen intense interest in trees generally (e.g., Lyu et al, 2022;Segovia et al, 2020) and in focused groups of Fagales, such as oaks (Cavender-Bares et al, 2004), Fagales themselves have never been the subject of a focused spatial phylogenetic analysis. Yet understanding the distribution of phylogenetic diversity in globally distributed model clades (Cavender-Bares, 2019) is essential to determining whether results at broad phylogenetic scales generalize to different levels of comparison (Graham et al, 2018) providing a more direct means to uncover processes that operate at shallower scales (Cavender-Bares, 2019).…”

Different facets of the same niche: Integrating citizen science and scientific survey data to predict biological invasion risk under multiple global change drivers

“…According to Gallien et al (2012), background points created to calibrate regional ENMs were given a different weight depending on committee averaging values generated by global ENMs (Appendix S1). As to regional ENMs, we adopted a mixed strategy depending on the species number of occurrences (Di Febbraro et al, 2018; Lyu et al, 2022). In particular, we calibrated the so‐called ‘ensemble of small models’ (Breiner et al, 2018) for those species reporting fewer than 50 occurrences in either scientific survey or citizen science data sets (Santini et al, 2021), that is, considering all possible combinations of the 21 environmental variables taken two at a time.…”

Diversity and conservation of endemic true bugs for four family groups in China

“…Some researchers have used grid counting methods to statistically determine the species number of the grids (Li et al, 2021). However, the reality is that the distribution data of some species meet the need for niche modelling and others do not, and the SDM + grid counting method is generally combined to better explore the biodiversity pattern (Lyu et al, 2022). The resolution of areas depends on the environmental variables, and it could supply practical advice for PA construction.…”