Spatiotemporal Diversification of Global Junipers: Traces of Niche Conservatism and Trait‐Dependent Diversification

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(2)

Published: Feb. 1, 2025

ABSTRACT Speciation rates differ globally across phylogenies and regions, the complexity of speciation process makes it difficult to fully understand these variations. It has been suggested that in conifers, is primarily influenced by abiotic factors, operating a local adaptive dynamic. In this study, we investigate changes climatic envelopes conifer species genus Juniperus test their explanatory power predicting distribution space controlling for other factors such as topography morphology. Location: Northern Hemisphere. Taxon: Juniperus. We used phylogenetic comparative methods macroecological evaluate rate shifts, trait‐speciation correlations, trait‐geography areas endemism. Climatic niches juniper follow bimodal trends temperature precipitation variables. These imply strong event divergence or possible adaptation trackable specific moment geography. Additionally, found significant some variables heterogeneous response continent, with morphological being most important North America, whereas climate more relevant Tibetan Plateau. Centers diversity different endemism, suggesting causes diversity. Overall, junipers exhibit conserved niche, marked particular history rather than general evolution. Morphological evolution previously considered both accumulation lineages rapid are supported hotspot regions.

Language: Английский

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Global Species Diversity Patterns of Polypodiaceae Under Future Climate Changes

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 711 - 711

Published: Feb. 26, 2025

Global change influences species diversity patterns. Compared with seed plants, ferns are more sensitive to temperature and humidity changes an ideal group for studying patterns under future climate changes. Polypodiaceae, which has important ecological application value, such as medicinal ornamental is one of the most widely distributed fern families, rich diversity. Here, we explore in Polypodiaceae their influencing factors. We collected than 300,000 data points on distribution map actual current used Maxent establish potential models using 20 predictors determined model method. Multiple linear regression random forest were evaluate effects factors Polypodiaceae. evaluated The increased gradually from higher lower latitudes centers concentrated low tropical rainforests. There four across world Polypodiaceae: central America, Africa, southern Asia, northern Oceania. was greatly affected by precipitation rather Under scenarios, expected shift accumulate toward equator mid-to-low latitudes. Species projected remain low-latitude regions but will tend aggregate towards altitude areas global temperatures rise, during warmest season identified influential factor.

Language: Английский

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A Novel Method for Molecular Identification of Genetic Diversity of Plant Resources in <i>Pinus</i> L. (Pinaceae) Based on Single Nucleotide Polymorphism (SNP) Sites from Complete Chloroplast Genomes

Botanical Research, Journal Year: 2024, Volume and Issue: 13(06), P. 574 - 590

Published: Jan. 1, 2024

Language: Английский

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