Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity
The effects of contemporary climate, habitat heterogeneity and long-term climate change on species richness are well studied for woody plants in forest ecosystems, but poorly understood for herbaceous plants, especially in alpine–arctic ecosystems. Here, we aim to test if the previously proposed hyp...
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2022
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Online Access: | https://hdl.handle.net/11250/2992202 https://doi.org/10.1093/jpe/rtab085 |
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ftunivbergen:oai:bora.uib.no:11250/2992202 2023-05-15T14:59:53+02:00 Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity Liu, Lian Xu, Xiaoting Zhang, Lei Li, Yaoqi Shrestha, Nawal Neves, Danilo M Wang, Qinggang Chang, Hong Su, Xiangyan Liu, Yunpeng Wu, Jianyong Dimitrov, Dimitar Wang, Zhiheng Jianquan, Liu 2022 application/pdf https://hdl.handle.net/11250/2992202 https://doi.org/10.1093/jpe/rtab085 eng eng Oxford University Press urn:issn:1752-9921 https://hdl.handle.net/11250/2992202 https://doi.org/10.1093/jpe/rtab085 cristin:1946081 Journal of Plant Ecology. 2022, 15 (2), 237–252. Copyright 2021 the authors Journal of Plant Ecology 237–252 15 2 Journal article Peer reviewed 2022 ftunivbergen https://doi.org/10.1093/jpe/rtab085 2023-03-14T17:43:13Z The effects of contemporary climate, habitat heterogeneity and long-term climate change on species richness are well studied for woody plants in forest ecosystems, but poorly understood for herbaceous plants, especially in alpine–arctic ecosystems. Here, we aim to test if the previously proposed hypothesis based on the richness–environment relationship could explain the variation in richness patterns of the typical alpine–arctic herbaceous genus Saxifraga. Using a newly compiled distribution database of 437 Saxifraga species, we estimated the species richness patterns for all species, narrow- and wide-ranged species. We used generalized linear models and simultaneous autoregressive models to evaluate the effects of contemporary climate, habitat heterogeneity and historical climate on species richness patterns. Partial regressions were used to determine the independent and shared effects of different variables. Four widely used models were tested to identify their predictive power in explaining patterns of species richness. We found that temperature was negatively correlated with the richness patterns of all and wide-ranged species, and that was the most important environmental factor, indicating a strong conservatism of its ancestral temperate niche. Habitat heterogeneity and long-term climate change were the best predictors of the spatial variation of narrow-ranged species richness. Overall, the combined model containing five predictors can explain ca. 40%–50% of the variation in species richness. We further argued that additional evolutionary and biogeographical processes might have also played an essential role in shaping the Saxifraga diversity patterns and should be considered in future studies. acceptedVersion Article in Journal/Newspaper Arctic Climate change University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Journal of Plant Ecology 15 2 237 252 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
The effects of contemporary climate, habitat heterogeneity and long-term climate change on species richness are well studied for woody plants in forest ecosystems, but poorly understood for herbaceous plants, especially in alpine–arctic ecosystems. Here, we aim to test if the previously proposed hypothesis based on the richness–environment relationship could explain the variation in richness patterns of the typical alpine–arctic herbaceous genus Saxifraga. Using a newly compiled distribution database of 437 Saxifraga species, we estimated the species richness patterns for all species, narrow- and wide-ranged species. We used generalized linear models and simultaneous autoregressive models to evaluate the effects of contemporary climate, habitat heterogeneity and historical climate on species richness patterns. Partial regressions were used to determine the independent and shared effects of different variables. Four widely used models were tested to identify their predictive power in explaining patterns of species richness. We found that temperature was negatively correlated with the richness patterns of all and wide-ranged species, and that was the most important environmental factor, indicating a strong conservatism of its ancestral temperate niche. Habitat heterogeneity and long-term climate change were the best predictors of the spatial variation of narrow-ranged species richness. Overall, the combined model containing five predictors can explain ca. 40%–50% of the variation in species richness. We further argued that additional evolutionary and biogeographical processes might have also played an essential role in shaping the Saxifraga diversity patterns and should be considered in future studies. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Liu, Lian Xu, Xiaoting Zhang, Lei Li, Yaoqi Shrestha, Nawal Neves, Danilo M Wang, Qinggang Chang, Hong Su, Xiangyan Liu, Yunpeng Wu, Jianyong Dimitrov, Dimitar Wang, Zhiheng Jianquan, Liu |
spellingShingle |
Liu, Lian Xu, Xiaoting Zhang, Lei Li, Yaoqi Shrestha, Nawal Neves, Danilo M Wang, Qinggang Chang, Hong Su, Xiangyan Liu, Yunpeng Wu, Jianyong Dimitrov, Dimitar Wang, Zhiheng Jianquan, Liu Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity |
author_facet |
Liu, Lian Xu, Xiaoting Zhang, Lei Li, Yaoqi Shrestha, Nawal Neves, Danilo M Wang, Qinggang Chang, Hong Su, Xiangyan Liu, Yunpeng Wu, Jianyong Dimitrov, Dimitar Wang, Zhiheng Jianquan, Liu |
author_sort |
Liu, Lian |
title |
Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity |
title_short |
Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity |
title_full |
Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity |
title_fullStr |
Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity |
title_full_unstemmed |
Global patterns of species richness of the holarctic alpine herb Saxifraga: The role of temperature and habitat heterogeneity |
title_sort |
global patterns of species richness of the holarctic alpine herb saxifraga: the role of temperature and habitat heterogeneity |
publisher |
Oxford University Press |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2992202 https://doi.org/10.1093/jpe/rtab085 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Journal of Plant Ecology 237–252 15 2 |
op_relation |
urn:issn:1752-9921 https://hdl.handle.net/11250/2992202 https://doi.org/10.1093/jpe/rtab085 cristin:1946081 Journal of Plant Ecology. 2022, 15 (2), 237–252. |
op_rights |
Copyright 2021 the authors |
op_doi |
https://doi.org/10.1093/jpe/rtab085 |
container_title |
Journal of Plant Ecology |
container_volume |
15 |
container_issue |
2 |
container_start_page |
237 |
op_container_end_page |
252 |
_version_ |
1766332007174897664 |