globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13628
论文题名:
Moving beyond presence and absence when examining changes in species distributions
作者: Ashcroft M.B.; King D.H.; Raymond B.; Turnbull J.D.; Wasley J.; Robinson S.A.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:8
起始页码: 2929
结束页码: 2940
语种: 英语
英文关键词: Antarctic mosses ; climate change ; geographic range ; negative binomial distribution ; population abundance ; presence-absence data ; range shifts
Scopus关键词: Bryophyta
英文摘要: Species distributions are often simplified to binary representations of the ranges where they are present and absent. It is then common to look for changes in these ranges as indicators of the effects of climate change, the expansion or control of invasive species or the impact of human land-use changes. We argue that there are inherent problems with this approach, and more emphasis should be placed on species relative abundance rather than just presence. The sampling effort required to be confident of absence is often impractical to achieve, and estimates of species range changes based on survey data are therefore inherently sensitive to sampling intensity. Species niches estimated using presence-absence or presence-only models are broader than those for abundance and may exaggerate the viability of small marginal sink populations. We demonstrate that it is possible to transform models of predicted probability of presence to expected abundance if the sampling intensity is known. Using case studies of Antarctic mosses and temperate rain forest trees, we demonstrate additional insights into biotic change that can be gained using this method. While species becoming locally extinct or colonising new areas are extreme and obviously important impacts of global environmental change, changes in abundance could still signal important changes in biological systems and be an early warning indicator of larger future changes. © 2017 John Wiley & Sons Ltd
资助项目: This research was primarily funded through Australian Research Council DP110101714 and Australian Antarctic Science grants AAS1313 and AAS4046 with logistical support from the Australian Antarctic Division for visits to Casey Station. DHK was supported by an Australian Postgraduate Award.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60881
Appears in Collections:影响、适应和脆弱性

Files in This Item:

There are no files associated with this item.


作者单位: Centre for Sustainable Ecosystem Solutions, School of Biological Sciences, University of Wollongong, Wollongong, NSW, Australia; Australian Antarctic Division, Department of Environment, Kingston, TAS, Australia; Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, TAS, Australia

Recommended Citation:
Ashcroft M.B.,King D.H.,Raymond B.,et al. Moving beyond presence and absence when examining changes in species distributions[J]. Global Change Biology,2017-01-01,23(8)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Ashcroft M.B.]'s Articles
[King D.H.]'s Articles
[Raymond B.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Ashcroft M.B.]'s Articles
[King D.H.]'s Articles
[Raymond B.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Ashcroft M.B.]‘s Articles
[King D.H.]‘s Articles
[Raymond B.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.