气候变化领域集成服务门户(CCPortal): The Cenozoic history of palms: Global diversification, biogeography and the decline of megathermal forests

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DOI	10.1111/geb.13436
	The Cenozoic history of palms: Global diversification, biogeography and the decline of megathermal forests
	Lim, Jun Ying; Huang, Huasheng; Farnsworth, Alexander; Lunt, Daniel J.; Baker, William J.; Morley, Robert J.; Kissling, W. Daniel; Hoorn, Carina
通讯作者	Lim, JY (通讯作者)
发表日期	2022
ISSN	1466-822X
EISSN	1466-8238
起始页码	425
结束页码	439
卷号	31 期号:3
英文摘要	Aim Megathermal rain forests and mangroves are much smaller in extent today than in the early Cenozoic, primarily owing to global cooling and drying trends since the Eocene-Oligocene transition (c. 34 Ma). The general reduction of these biomes is hypothesized to shape the diversity and biogeographical history of tropical plant clades. However, this has rarely been examined owing to a paucity of good fossil records of tropical taxa and the difficulty in assigning them to modern clades. Here, we evaluate the role that Cenozoic climate change might have played in shaping the diversity and biogeography of tropical plants through time. Location Global. Time period Cenozoic, 66 Ma to present. Major taxa studied Four palm clades (Calaminae, Eugeissoneae, Mauritiinae and Nypoideae) and their fossil pollen record. Methods We compiled fossil pollen occurrence records for each focal palm lineage to reconstruct their diversity and biogeographical distribution throughout the Cenozoic. We use climatic niche models to project the distribution of climatically suitable areas for each lineage in the past, using palaeoclimatic data for the Cenozoic. Results For most palm lineages examined, global pollen taxonomic diversity declined throughout the Cenozoic. Geographical ranges for each focal lineage contracted globally and experienced regional-scale extinctions (e.g., Afrotropics), particularly after the Miocene. However, climatic niche models trained on extant species of these focal lineages often predict the presence of climatically suitable habitat in areas where these lineages went extinct. Main conclusions Globally, the decline in megathermal rain forest and mangrove extent might have led to declines in diversity and range contractions in some megathermal plant taxa throughout the Cenozoic. Although global climatic trends are an important backdrop for the biogeography and diversity of tropical groups at global scales, their continental- or regional-scale biogeographical trajectories might be more dependent on regional abiotic and biotic contexts.
关键词	NICHE CONSERVATISM SPECIES RICHNESS PLANT DIVERSITY CLIMATE-CHANGE R PACKAGE EVOLUTION FOSSIL CALAMOIDEAE EXTINCTION SPECIATION
英文关键词	Arecaceae; climatic niche modelling; Eocene-Oligocene transition; fossil record; global cooling; palaeoclimate; palynology; tropical forests
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Ecology ; Geography, Physical
WOS记录号	WOS:000730588000001
来源期刊	GLOBAL ECOLOGY AND BIOGEOGRAPHY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260768
推荐引用方式 GB/T 7714	Lim, Jun Ying,Huang, Huasheng,Farnsworth, Alexander,et al. The Cenozoic history of palms: Global diversification, biogeography and the decline of megathermal forests[J]. 中国科学院青藏高原研究所,2022,31(3).
APA	Lim, Jun Ying.,Huang, Huasheng.,Farnsworth, Alexander.,Lunt, Daniel J..,Baker, William J..,...&Hoorn, Carina.(2022).The Cenozoic history of palms: Global diversification, biogeography and the decline of megathermal forests.GLOBAL ECOLOGY AND BIOGEOGRAPHY,31(3).
MLA	Lim, Jun Ying,et al."The Cenozoic history of palms: Global diversification, biogeography and the decline of megathermal forests".GLOBAL ECOLOGY AND BIOGEOGRAPHY 31.3(2022).