Inversion of the latitudinal diversity gradient at high taxonomic level in liverworts revealed by a phylogenetically deconstructive approach

In contrast to the marked increase of angiosperm family diversity towards the tropics, the latitudinal diversity gradient evidenced at species level in liverworts decayed progressively at increasing phylogenetic level, suggesting that phylogenetic niche conservatism has played a much weaker role in liverworts than in angiosperms. The inverted latitudinal diversity gradient towards the deepest phylogenetic levels lends support to the hypothesis that the earliest lineages diversified in extra-tropical conditions, explaining why, unlike in angiosperms, high species richness in the tropics is not associated with high phylogenetic diversity in liverworts. Our results highlight the extent to which a phylogenetically deconstructive approach allows for a better understanding of the accumulation of biodiversity through time.

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Publication Details

Journal
Annals of Botany
Published
2025-03-26
DOI
https://doi.org/10.1093/aob/mcaf051
Primary Topic
Bryophyte Studies and Records
Type
article
Field-Weighted Citation Impact
0.00
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article

Inversion of the latitudinal diversity gradient at high taxonomic level in liverworts revealed by a phylogenetically deconstructive approach

Anders Hagborg, Flavien Collart, Zun Dai, Alain Vanderpoorten et al.
Annals of Botany
Bryophyte Studies and Records
article

Inversion of the latitudinal diversity gradient at high taxonomic level in liverworts revealed by a phylogenetically deconstructive approach

Anders Hagborg, Flavien Collart, Zun Dai, Alain Vanderpoorten, Lars Söderström, Thibault Kasprzyk, Jian Wang, Xue Yao, Jian Zhang
article en

Abstract

In contrast to the marked increase of angiosperm family diversity towards the tropics, the latitudinal diversity gradient evidenced at species level in liverworts decayed progressively at increasing phylogenetic level, suggesting that phylogenetic niche conservatism has played a much weaker role in liverworts than in angiosperms. The inverted latitudinal diversity gradient towards the deepest phylogenetic levels lends support to the hypothesis that the earliest lineages diversified in extra-tropical conditions, explaining why, unlike in angiosperms, high species richness in the tropics is not associated with high phylogenetic diversity in liverworts. Our results highlight the extent to which a phylogenetically deconstructive approach allows for a better understanding of the accumulation of biodiversity through time.

Annals of BotanyVol. 136(3)
University of Liège (BE), Sun Yat-sen University (CN), Norwegian University of Science and Technology (NO), Field Museum of Natural History (US), Zhongshan Hospital (CN), Czech Academy of Sciences, Institute of Botany (CZ), East China Normal University (CN), University of Lausanne (CH)
Openalex Percentile: Top 95%
Bryophyte Studies and Records
DOIOpen Access PDFOpenAlex
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Inversion of the latitudinal diversity gradient at high taxonomic level in liverworts revealed by a phylogenetically deconstructive approach — Anders Hagborg, Flavien Collart, et al. · Annals of Botany (2025) | TGRS Research Map | TGRS