Climatic‐niche evolution with key morphological innovations across clades within Scutiger boulengeri (Anura: Megophryidae)

Lin, Xiuqin; Shih, Chungkun; Hou, Yinmeng; Shu, Xiaoxiao; Zhang, Meihua; Hu, Junhua; Jiang, Jianping; Xie, Feng

doi:10.1002/ece3.7838

Cited by 11 publications

(14 citation statements)

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“…A good starting point under this premise could be achieved by using genetic data generated by previous studies but analyzing them with the approaches and methodologies used here, see 80 , 125 , ideally those containing comprehensive and exhaustive genetic samplings 34 , 118 . In this line, the characterization and analysis of the dimensions that constitute the ecological niche can become a mandatory procedure when attempting to study the dynamics of species with significant levels of population differentiation 58 , 126 . This is important because populations or lineages within a species could have different evolutionary histories, shaped for example, by geophysical processes occurring locally, whose effect can be overlooked if ecological attributes characterized are only analyzed at the species level.…”

Section: Discussionmentioning

confidence: 99%

Climate influences the genetic structure and niche differentiation among populations of the olive field mouse Abrothrix olivacea (Cricetidae: Abrotrichini)

Quiroga-Carmona

D’Elı́a

2022

Sci Rep

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Even when environmental variation over time and space is commonly considered as an important driver of population divergence, few evaluations of intraspecific genetic variation explicitly assess whether observed structure has been caused by or is correlated with landscape heterogeneity. Several phylogeographic studies have characterized the mitochondrial diversity of Abrothrix olivacea, but none has incorporated landscape genetics analyses and ecological niche modeling, leaving a gap in the understanding of the species evolutionary history. Here, these aspects were addressed based on 186 single nucleotide polymorphisms, extracted from sequences of 801 bp of Cytb gene, gathered from 416 individuals collected at 103 localities in Argentina and Chile. Employing multivariate statistical analyses (gPCA, Mantel and Partial Mantel Tests, Procrustes Analysis, and RDA), associations between genetic differences and geographic and climatic distances were evaluated. Presence data was employed to estimate the potential geographic distribution of this species during historical and contemporary climatic scenarios, and to address differences among the climatic niches of their main mitochondrial lineages. The significant influence of landscape features in structuring mitochondrial variability was evidenced at different spatial scales, as well as the role of past climatic dynamics in driving geographic range shifts, mostly associated to Quaternary glaciations. Overall, these results suggest that throughout geographic range gene flow is unevenly influenced by climatic dissimilarity and the geographic distancing, and that studied lineages do not exhibit distributional signals of climatic niche conservatism. Additionally, genetic differentiation occurred by more complex evolutionary processes than mere disruption of gene flow or drift.

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Section: Discussionmentioning

confidence: 99%

Climate influences the genetic structure and niche differentiation among populations of the olive field mouse Abrothrix olivacea (Cricetidae: Abrotrichini)

Quiroga-Carmona

D’Elı́a

2022

Sci Rep

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“…The quantification of the realized niche of a species [1] (sensu Grinnell [2][3][4][5], hereafter niche) and how it varies across space and time has received increasing attention in ecological Birds 2022, 3 150 studies, with important implications in evolution, biogeography, and conservation [6][7][8][9][10][11][12][13][14][15]. Many studies have focused on niche evolution in related taxa [16][17][18][19][20][21][22][23], or on niche quantification of alien species to assess their potential as invaders in non-native ranges [24][25][26][27][28][29][30][31][32]. However, niche quantification and change in avian species remain poorly investigated aspects, especially if compared to other research topics (e.g., population trend assessment).…”

Section: Introductionmentioning

confidence: 99%

New Evidence on the Linkage of Population Trends and Species Traits to Long-Term Niche Changes

Tirozzi

Orioli

Dondina

et al. 2022

Birds

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Despite the assessment of long-term niche dynamics could provide crucial information for investigating species responses to environmental changes, it is a poorly investigated topic in ecology. Here, we present a case study of multi-species niche analysis for 71 common breeding birds in Northern Italy, exploring long-term niche changes from 1992 to 2017 and their relationship with both population trends and species traits. We (i) quantified the realized Grinnellian niche in the environmental space, (ii) compared variations in niche breadth and centroid, (iii) tested niche divergence and conservatism through equivalency and similarity tests, (iv) calculated niche temporal overlap, expansion and unfilling indices, and (v) investigated their association with both population changes and species traits. Results supported niche divergence (equivalency test) for 32% of species, although two-thirds were not supported by the similarity test. We detected a general tendency to adjust the niche centroids towards warmer thermal conditions. Increasing populations were positively correlated with niche expansion, while negatively correlated with niche overlap, albeit at the limit of the significance threshold. We found moderate evidence for a non-random association between niche changes and species traits, especially for body size, clutch size, number of broods per year, inhabited landscape type, and migration strategy. We encourage studies correlating long-term population trends and niche changes with species traits’ information and a specific focus on cause-effect relationship at both the single and multiple-species level.

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“…Scutiger boulengeri , an endemic cold-adapted Xizang alpine toad occurring in mountain streams in Xizang (Tibet) ( Hofmann et al, 2017 ), is widely distributed along the eastern and southern slopes of the Qinghai-Xizang Plateau (QTP) at elevations between 2 400 and 5 270 m a.s.l. ( Chen et al, 2009 ; Lin et al, 2021 ). Previous research of this taxon has revealed that three out of six distinct mitochondrial DNA (mtDNA) genetic clades exhibit significant niche divergence and corresponding body size variation ( Lin et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…( Chen et al, 2009 ; Lin et al, 2021 ). Previous research of this taxon has revealed that three out of six distinct mitochondrial DNA (mtDNA) genetic clades exhibit significant niche divergence and corresponding body size variation ( Lin et al, 2021 ). This system facilitating exploration of novel niche space may work synergistically with intrinsic and extrinsic factors driving population structure and the emergence of new phenotypic changes under climate change.…”

Section: Introductionmentioning

confidence: 99%

A wide hybrid zone mediated by precipitation contributed to confused geographical structure of Scutiger boulengeri

Lin¹,

Hou²,

Yang³

et al. 2023

Zoological Research

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Confused geographical structure of a population and mitonuclear discordance are shaped by a combination of rapid changes in population demographics and shifts in ecology. In this study, we generated a time-calibrated phylogeny of Scutiger boulengeri , an endemic Xizang alpine toad occurring in mountain streams on the Qinghai-Xizang (Tibet) Plateau (QTP). Based on three mitochondrial DNA (mtDNA) genes, eight clades were assigned to three deeply divergent lineages. Analysis of nuclear DNA (nuDNA) genes revealed three distinct clusters without geographic structure, indicating significantly high rates of gene flow. Coalescent theory framework analysis (approximate Bayesian computation model DIYABC and Migrate-N) suggested that divergence of the main intraspecific clusters was the result of hybridization after secondary contact in the Holocene around 0.59 million years ago (Ma). The ratio of mtDNA F ST (fixation index) to nuDNA F ST was 2.3, thus failing to show male-biased dispersal. Geographic cline analysis showed that a wide hybrid zone was initially established in southwestern China, without significant reproductive isolation but with strong introgression in S . boulengeri , suggesting high hybrid fitness. Furthermore, mtDNA genes exhibited isolation by distance (IBD) while nuDNA genes exhibited significant isolation by environment (IBE). Results suggested that mitonuclear discordance may have initially been caused by geographic isolation, followed by precipitation-mediated hybridization, producing a wide hybrid zone and geographic structure confusion of nuDNA genes in S . boulengeri . This study indicated that complicated historical processes may have led to specific genetic patterns, with a specific climate factor facilitating gene flow in the system.

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Climatic‐niche evolution with key morphological innovations across clades within Scutiger boulengeri (Anura: Megophryidae)

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 11 publications

References 118 publications

Climate influences the genetic structure and niche differentiation among populations of the olive field mouse Abrothrix olivacea (Cricetidae: Abrotrichini)

Climate influences the genetic structure and niche differentiation among populations of the olive field mouse Abrothrix olivacea (Cricetidae: Abrotrichini)

New Evidence on the Linkage of Population Trends and Species Traits to Long-Term Niche Changes

A wide hybrid zone mediated by precipitation contributed to confused geographical structure of <i>Scutiger</i> <i>boulengeri</i>

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