globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0150408
论文题名:
Extensive Acclimation in Ectotherms Conceals Interspecific Variation in Thermal Tolerance Limits
作者: Anna F. V. Pintor; Lin Schwarzkopf; Andrew K. Krockenberger
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2016
发表日期: 2016-3-18
卷: 11, 期:3
语种: 英语
英文关键词: Body temperature ; Reptiles ; Climate change ; Seasons ; Habitats ; Latitude ; Meta-analysis ; Wildlife
英文摘要: Species’ tolerance limits determine their capacity to tolerate climatic extremes and limit their potential distributions. Interspecific variation in thermal tolerances is often proposed to indicate climatic vulnerability and is, therefore, the subject of many recent meta-studies on differential capacities of species from climatically different habitats to deal with climate change. Most studies on thermal tolerances do not acclimate animals or use inconsistent, and insufficient, acclimation times, limiting our knowledge of the shape, duration and extent of acclimation responses. Consequently patterns in thermal tolerances observed in meta-analyses, based on data from the literature are based on inconsistent, partial acclimation and true trends may be obscured. In this study we describe time-course of complete acclimation of critical thermal minima in the tropical ectotherm Carlia longipes and compare it to the average acclimation response of other reptiles, estimated from published data, to assess how much acclimation time may contribute to observed differences in thermal limits. Carlia longipes decreased their lower critical thermal limits by 2.4°C and completed 95% of acclimation in 17 weeks. Wild populations did not mirror this acclimation process over the winter. Other reptiles appear to decrease cold tolerance more quickly (95% in 7 weeks) and to a greater extent, with an estimated average acclimation response of 6.1°C. However, without data on tolerances after longer acclimation times available, our capacity to estimate final acclimation state is very limited. Based on the subset of data available for meta-analysis, much of the variation in cold tolerance observed in the literature can be attributed to acclimation time. Our results indicate that (i) acclimation responses can be slow and substantial, even in tropical species, and (ii) interspecific differences in acclimation speed and extent may obscure trends assessed in some meta-studies. Cold tolerances of wild animals are representative of cumulative responses to recent environments, while lengthy acclimation is necessary for controlled comparisons of physiological tolerances. Measures of inconsistent, intermediate acclimation states, as reported by many studies, represent neither the realised nor the potential tolerance in that population, are very likely underestimates of species’ physiological capacities and may consequently be of limited value.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0150408&type=printable
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/25123
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

Files in This Item:
File Name/ File Size Content Type Version Access License
journal.pone.0150408.PDF(411KB)期刊论文作者接受稿开放获取View Download

作者单位: Centre for Tropical Biodiversity and Climate Change, College of Marine and Environmental Sciences, James Cook University, Cairns, Qld, 4878, Australia;Centre for Tropical Biodiversity and Climate Change, College of Marine and Environmental Sciences, James Cook University, Townsville, Qld, 4811, Australia;Centre for Tropical Biodiversity and Climate Change, College of Marine and Environmental Sciences, James Cook University, Cairns, Qld, 4878, Australia

Recommended Citation:
Anna F. V. Pintor,Lin Schwarzkopf,Andrew K. Krockenberger. Extensive Acclimation in Ectotherms Conceals Interspecific Variation in Thermal Tolerance Limits[J]. PLOS ONE,2016-01-01,11(3)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Anna F. V. Pintor]'s Articles
[Lin Schwarzkopf]'s Articles
[Andrew K. Krockenberger]'s Articles
百度学术
Similar articles in Baidu Scholar
[Anna F. V. Pintor]'s Articles
[Lin Schwarzkopf]'s Articles
[Andrew K. Krockenberger]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Anna F. V. Pintor]‘s Articles
[Lin Schwarzkopf]‘s Articles
[Andrew K. Krockenberger]‘s Articles
Related Copyright Policies
Null
收藏/分享
文件名: journal.pone.0150408.PDF
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

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