DOI: 10.1016/j.gloplacha.2016.12.008
论文题名: Biotic immigration events, speciation, and the accumulation of biodiversity in the fossil record
作者: Stigall A.L. ; Bauer J.E. ; Lam A.R. ; Wright D.F.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2017
卷: 148 起始页码: 242
结束页码: 257
语种: 英语
英文关键词: Biogeography
; Biotic invasion
; Devonian
; Neogene
; Ordovician
Scopus关键词: Conservation
; Ecology
; Population statistics
; Biogeography
; Biotic invasion
; Devonians
; Neo genes
; Ordovician
; Biodiversity
英文摘要: Biotic Immigration Events (BIMEs) record the large-scale dispersal of taxa from one biogeographic area to another and have significantly impacted biodiversity throughout geologic time. BIMEs associated with biodiversity increases have been linked to ecologic and evolutionary processes including niche partitioning, species packing, and higher speciation rates. Yet substantial biodiversity decline has also been documented following BIMEs due to elevated extinction and/or reduced speciation rates. In this review, we develop a conceptual model for biodiversity accumulation that links BIMEs and geographic isolation with local (α) diversity, regional (β) diversity, and global (γ) diversity metrics. Within the model, BIME intervals are characterized by colonization of existing species within new geographic regions and a lack of successful speciation events. Thus, there is no change in γ-diversity, and α-diversity increases at the cost of β-diversity. An interval of regional isolation follows in which lineage splitting results in successful speciation events and diversity increases across all three metrics. Alternation of these two regimes can result in substantial biodiversity accumulation. We tested this conceptual model using a series of case studies from the paleontological record. We primarily focus on two intervals during the Middle through Late Ordovician Period (470–458 Ma): the globally pervasive BIMEs during the Great Ordovician Biodiversification Event (GOBE) and a regional BIME, the Richmondian Invasion. We further test the conceptual model by examining the Great Devonian Interchange, Neogene mollusk migrations and diversification, and the Great American Biotic Interchange. Paleontological data accord well with model predictions. Constraining the mechanisms of biodiversity accumulation provides context for conservation biology. Because α-, β-, and γ-diversity are semi-independent, different techniques should be considered for sustaining various diversity partitions. Maintaining natural migration routes and population sizes among isolated regions are vital to preserving both extant biodiversity and biogeographic pathways requisite for future diversity generation. © 2016 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007463520&doi=10.1016%2fj.gloplacha.2016.12.008&partnerID=40&md5=735ce6c6ee5f9ea0ecadb1ae125c2d4f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11775
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Geological Sciences and OHIO Center for Ecology and Evolutionary Studies, Ohio University, 316 Clippinger Laboratories, Athens, OH, United States
Recommended Citation:
Stigall A.L.,Bauer J.E.,Lam A.R.,et al. Biotic immigration events, speciation, and the accumulation of biodiversity in the fossil record[J]. Global and Planetary Change,2017-01-01,148.