ORCID Profile
0000-0002-4737-2042
Current Organisation
East China Normal University
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Publisher: Springer Science and Business Media LLC
Date: 21-08-2018
Publisher: Cold Spring Harbor Laboratory
Date: 17-11-2020
DOI: 10.1101/2020.11.14.382846
Abstract: Both historical and contemporary environmental conditions determine present bio ersity patterns, but their relative importance is not well understood. One way to disentangle their relative effects is to assess how different dimensions of beta- ersity relate to past climatic changes, i.e., taxonomic, phylogenetic and functional compositional dissimilarity, and their components generated by replacement of species, lineages and traits (turnover) and richness changes (nestedness). Here, we quantify global patterns of each of these aspects of beta- ersity among neighboring sites for angiosperm trees using the most extensive global database of tree species-distributions (43,635 species). We found that temperature change since the Last Glacial Maximum (LGM) was the major influence on both turnover and nestedness components of beta- ersity, with a negative correlation to turnover and a positive correlation to nestedness. Moreover, phylogenetic and functional nestedness was higher than expected from taxonomic beta- ersity in regions that experienced large temperature changes since the LGM. This pattern reflects relatively greater losses of phylogenetic and functional ersity in species-poor assemblages, possibly caused by phylogenetically and functionally selective species extinction and recolonization during glacial-interglacial oscillations. Our results send a strong warning that rapid anthropogenic climate change is likely to result in a long-lasting phylogenetic and functional compositional simplification, potentially impairing forest ecosystem functioning.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 05-04-2023
Abstract: As Earth’s climate has varied strongly through geological time, studying the impacts of past climate change on bio ersity helps to understand the risks from future climate change. However, it remains unclear how paleoclimate shapes spatial variation in bio ersity. Here, we assessed the influence of Quaternary climate change on spatial dissimilarity in taxonomic, phylogenetic, and functional composition among neighboring 200-kilometer cells (beta- ersity) for angiosperm trees worldwide. We found that larger glacial-interglacial temperature change was strongly associated with lower spatial turnover (species replacements) and higher nestedness (richness changes) components of beta- ersity across all three bio ersity facets. Moreover, phylogenetic and functional turnover was lower and nestedness higher than random expectations based on taxonomic beta- ersity in regions that experienced large temperature change, reflecting phylogenetically and functionally selective processes in species replacement, extinction, and colonization during glacial-interglacial oscillations. Our results suggest that future human-driven climate change could cause local homogenization and reduction in taxonomic, phylogenetic, and functional ersity of angiosperm trees worldwide.
Publisher: Springer Science and Business Media LLC
Date: 10-11-2016
Publisher: Proceedings of the National Academy of Sciences
Date: 16-06-2022
Abstract: Safeguarding Earth’s tree ersity is a conservation priority due to the importance of trees for bio ersity and ecosystem functions and services such as carbon sequestration. Here, we improve the foundation for effective conservation of global tree ersity by analyzing a recently developed database of tree species covering 46,752 species. We quantify range protection and anthropogenic pressures for each species and develop conservation priorities across taxonomic, phylogenetic, and functional ersity dimensions. We also assess the effectiveness of several influential proposed conservation prioritization frameworks to protect the top 17% and top 50% of tree priority areas. We find that an average of 50.2% of a tree species’ range occurs in 110-km grid cells without any protected areas (PAs), with 6,377 small-range tree species fully unprotected, and that 83% of tree species experience nonnegligible human pressure across their range on average. Protecting high-priority areas for the top 17% and 50% priority thresholds would increase the average protected proportion of each tree species’ range to 65.5% and 82.6%, respectively, leaving many fewer species (2,151 and 2,010) completely unprotected. The priority areas identified for trees match well to the Global 200 Ecoregions framework, revealing that priority areas for trees would in large part also optimize protection for terrestrial bio ersity overall. Based on range estimates for ,000 tree species, our findings show that a large proportion of tree species receive limited protection by current PAs and are under substantial human pressure. Improved protection of bio ersity overall would also strongly benefit global tree ersity.
Publisher: Cold Spring Harbor Laboratory
Date: 03-06-2020
DOI: 10.1101/2020.06.02.128975
Abstract: Trees are of vital importance for ecosystem functioning and services at local to global scales, yet we still lack a detailed overview of the global patterns of tree ersity and the underlying drivers, particularly the imprint of paleoclimate. Here, we present the high-resolution (110 km) worldwide mapping of tree species richness, functional and phylogenetic ersities based on ∼7 million quality-assessed occurrences for 46,752 tree species (80.5% of the estimated total number of tree species), and subsequent assessments of the influence of paleo-climate legacies on these patterns. All three tree ersity dimensions exhibited the expected latitudinal decline. Contemporary climate emerged as the strongest driver of all ersity patterns, with Pleistocene and deeper-time ( 7 years) paleoclimate as important co-determinants, and, notably, with past cold and drought stress being linked to reduced current ersity. These findings demonstrate that tree ersity is affected by paleoclimate millions of years back in time and highlight the potential for tree ersity losses from future climate change.
No related grants have been discovered for Wenyong Guo.