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. 2024 Jun 25;13(13):1752. doi: 10.3390/plants13131752

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Alteration in climate niche breadth for the four Trollius species. (b) Climate niche overlap of four Trollius species. Note: The solid and dashed contour lines illustrate 100% and 50% of the available environmental space, respectively. Red arrows show how the center of the climatic niche (solid line) and the background range (dashed line) of Trollius moved between the two ranges. D = 0.888 indicates that the Schoener’s D niche overlap index is 0.888. The x-axis and y-axis represent the value of principal components (PC1 and PC2).

(a) Alteration in climate niche breadth for the four Trollius species. (b) Climate niche overlap of four Trollius species. Note: The solid and dashed contour lines illustrate 100% and 50% of the available environmental space, respectively. Red arrows show how the center of the climatic niche (solid line) and the background range (dashed line) of Trollius moved between the two ranges. D = 0.888 indicates that the Schoener’s D niche overlap index is 0.888. The x-axis and y-axis represent the value of principal components (PC1 and PC2).