DOI: 10.1016/j.quascirev.2013.06.025
Scopus记录号: 2-s2.0-84880615214
论文题名: Accumulation rates or percentages? How to quantify Sporormiella and other coprophilous fungal spores to detect late Quaternary megafaunal extinction events
作者: Wood J.R. ; Wilmshurst J.M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 77 起始页码: 1
结束页码: 3
语种: 英语
英文关键词: Dung fungi
; Extinctions
; Herbivores
; Quantification
; Sporormiella
Scopus关键词: Accumulation rates
; Extinctions
; Herbivores
; Pollen accumulation rate
; Quantification
; Sedimentary records
; Sporormiella
; Stratigraphic sequences
; Sedimentology
; Vegetation
; Fungi
; accumulation rate
; biostratigraphy
; extinction
; fungus
; herbivore
; micropaleontology
; pollen
; Quaternary
; spore
; vegetation dynamics
英文摘要: Spores of coprophilous fungi, and in particular those of Sporormiella, are a routinely used proxy for detecting late Quaternary herbivore extinction events in sedimentary records. Spore abundance is typically quantified as a percentage of the total, or dryland, pollen sum. Although this is a quick method that does not require the development of site-specific age-depth models, it relies on stable pollen accumulation rates and is therefore highly sensitive to changes in vegetation. This may lead to incorrect placement of extinction events in sedimentary records, particularly when they occur contemporaneously with major climatic/vegetation transitions. We suggest that the preferred method of quantification should be accumulation rate, and that pollen abundance data should also be presented, particularly for periods of major vegetation change. This approach provides a more reliable record of past herbivore abundance independent of vegetation change, allowing extinction events to be more accurately placed in stratigraphic sequences. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60530
Appears in Collections: 过去全球变化的重建
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作者单位: Landcare Research, Po Box 69040, Lincoln 7640, New Zealand
Recommended Citation:
Wood J.R.,Wilmshurst J.M.. Accumulation rates or percentages? How to quantify Sporormiella and other coprophilous fungal spores to detect late Quaternary megafaunal extinction events[J]. Quaternary Science Reviews,2013-01-01,77