Evolution of biogeographic disjunction between eastern Asia and North America in Chamaecyparis : Insights from ecological niche models

Liu, Ping; Wen, Jun; Yi, Ting‐Shuang

doi:10.1016/j.pld.2017.04.001

Cited by 10 publications

(7 citation statements)

References 38 publications

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“…A quality control was performed on the occurrence data [ 38 ]: a) eliminating repeated data; b) completing the coordinates of sites that had an accurate description of the site but lacked latitude-longitude information (using GEOLocate [ www.museum.tulane.edu/geolocate ] and Google Earth); and, c) eliminating data which coordinates did not match the description provided for the site. Finally, in order to achieve a spatial resolution similar to that of the climate data (see below) and to minimize possible effects of sampling bias and spatial autocorrelation [ 39 , 40 ], coordinates closer than 2.5 sexagesimal minutes [~ 5km] were discarded (16 in North America and 9 in South America). This resulted in a presence data set of 104 and 177 coordinates for North and South America, respectively.…”

Section: Methodsmentioning

confidence: 99%

Climatic niche shift in the amphitropical disjunct grass Trichloris crinita

2018

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Plant species disjunctions have attracted the interest of ecologists for decades. We investigated Trichloris crinita, a native C4 perennial grass with disjunct distribution between subtropical regions of North and South America, testing the hypothesis that the species has a similar realized climatic niche in both subcontinents. The climatic niche of T. crinita in North and South America was characterized and compared using presence records and five uncorrelated bioclimatic variables selected according to their ecological importance for the species. We used reciprocal modeling to make geographic projections of the realized niche within each subcontinent. Niche overlap between T. crinita distributions in North and South America was intermediate for the individual climatic variables and the multivariate space. In all cases the test of equivalence between climates inhabited by T. crinita indicated that the realized niche of the species differ significantly between subcontinents. Also, the similarity test showed that in the majority of cases the realized niche in both subcontinents was significantly different than that expected by chance. T. crinita occupied a greater diversity of environments in South than in North America, while in the latter its distribution was displaced to drier and warmer environments. The modeled geographic distribution using the actual occurrences of the species in North America did not accurately predict the distribution in South America, and vice versa. Together, these results led us to reject the hypothesis of similar niche of T. crinita in both subcontinents. This information may be useful to manage restoration efforts by presenting the suitable areas and climates for the species, and suggesting that translocation of individuals between subcontinents could only be recommended with caution because introduced genotypes can be potentially maladaptive, and could colonize sites actually not occupied by the species within each subcontinent.

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Section: Methodsmentioning

confidence: 99%

Climatic niche shift in the amphitropical disjunct grass Trichloris crinita

2018

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“…In addition, we built and evaluated separate distribution models using the occurrence data for the HI region (39 records) or the KRT region (91 records) (Table S4). This kind of modelling technique is called reciprocal ENM (Fitzpatrick et al, 2007; Peterson et al, 1999), and has often been applied to estimate niche shifts of congeneric species with disjunct distributions (Liu et al, 2017; Quiroga et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

Refugia during the last glacial period and the origin of the disjunct distribution of an insular plant

Yamada

Kokubugata

Fujii

et al. 2021

Journal of Biogeography

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Aim: Although many phylogeographic studies have focused on continental refugia, the roles of islands as refugia have long been overlooked. In this study, we conducted phylogeographic studies of a plant with insular distribution, Microtropis japonica, to elucidate the potential roles of islands as refugia during recent glacial periods. Specifically, we test the hypothesis that two remote groups of Japanese islands (the Izu and Ryukyu Islands) were refugia for M japonica. Location:The Izu and Ryukyu Islands of Japan and their adjacent areas including the Japanese mainland and Taiwan. Taxon: Microtropis japonica (Celastraceae).Methods: A total of 363 individuals were sampled from 44 populations of M japonica.To elucidate population genetic differentiation and demographic change in M japonica, we performed molecular variance and mismatch distribution analyses based on chloroplast DNA (cpDNA) sequence variations and Bayesian clustering and gene flow estimates based on nuclear single-nucleotide polymorphism (SNP) data. In addition, to examine distribution changes, ecological niche modelling using the maximum entropy method was used to determine suitable habitats existing currently or during the last glacial maximum, using occurrence data and six bioclimatic variables.Results: Both cpDNA and nuclear SNP data showed genetic differentiation between two disjunct regions. However, cpDNA data indicated genetic differentiation within the Ryukyu Islands but not within the Izu Islands, while nuclear SNP data indicated genetic differentiation within both island groups. Ecological niche modelling showed that both the Izu and Ryukyu archipelagos had contained some islands with a climate compatible with modern M japonica climate envelopes despite climate oscillations. Main conclusions: Islands within both the Izu and Ryukyu archipelagos may have supported M japonica populations throughout historical climate oscillations. The current disjunct distribution of M japonica strongly reflects its refugial locations during the | 1461 YAMADA et Al.

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“…A quality control was performed by visual inspection of the original data sheets and coordinate projection in maps (using diva‐gis version 7.5.0.0; Scheldeman & Zonneveld, 2010); duplicates and occurrences for which coordinates did not match the site description were eliminated. Finally, in order to achieve a spatial resolution similar to that of the environmental data and to minimize possible effects of geographical sampling bias and spatial autocorrelation, coordinates were thinned to a minimal distance according to the performed analysis (see below; Feng et al., 2019; Fourcade et al., 2014; Liu et al., 2017; Tingley et al., 2014).…”

Section: Methodsmentioning

confidence: 99%

Niche dynamics in amphitropical desert disjunct plants: Seeking for ecological and species‐specific influences

Quiroga

Premoli

Fernández

2020

Global Ecol. Biogeogr.

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Aim Numerous studies have assessed whether species niches are conserved in geographically separated regions. However, most of them were performed on invasive species, with the limitation that such species have likely not yet reached their potential distribution in the invaded region. Here we test the hypothesis of niche conservatism in the entire group of 25 amphitropical desert disjunct plant species, naturally distributed in North and South America but absent in the tropics. We also assessed the influence of ecological (intensity of biotic interactions) and species‐specific factors (dispersal ability and adaptation to stress) on species niche differentiation between the two continents. Location North America and South America. Time period Recent. Major taxa studied Plants. Amphitropical desert disjunct species. Methods Species’ presence coordinates and five biologically relevant climatic variables were used to quantify niche differentiation of species between continents by means of principal component analysis. Then, structural equation modelling was performed to assess the influence on niche differentiation of proxies for intensity of biotic interactions (habitat net primary productivity), species dispersibility (dispersal mode and plant traits), and adaptation to stress (leaf size). Results Niche shift was detected for 24 out of the 25 species, mostly towards cooler environments in South America (−2.5 °C average) with respect to North America. These niche shifts were best explained by the productivity of species’ habitats, in particular by the displacement of species’ niches away from the more productive and competitive environments of South America. Main conclusions Niche shift seems to be the rule in amphitropical desert plants. Our findings highlight a previously undetected connection between amphitropical disjunct species and macroecological characteristics of the Americas. We show that prevalent environments differ between South and North America, and suggest that associated biotic contexts (mainly competition from widespread tropical and subtropical forests in South America) play a determinant role on species’ distribution and niches.

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Evolution of biogeographic disjunction between eastern Asia and North America in Chamaecyparis : Insights from ecological niche models

Cited by 10 publications

References 38 publications

Climatic niche shift in the amphitropical disjunct grass Trichloris crinita

Climatic niche shift in the amphitropical disjunct grass Trichloris crinita

Refugia during the last glacial period and the origin of the disjunct distribution of an insular plant

Niche dynamics in amphitropical desert disjunct plants: Seeking for ecological and species‐specific influences

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