Interactions between rates of temperature change and acclimation affect latitudinal patterns of warming tolerance.
Interactions between rates of temperature change and acclimation affect latitudinal patterns of warming tolerance.
复制标题
DOI：
10.1093/conphys/cow053
复制
发表时间：
2016
影响因子：
2.7
通讯作者：
Clusella-Trullas S
中科院分区：
文献类型：
--
作者：
Allen JL;Chown SL;Janion-Scheepers C;Clusella-Trullas S
温度变化率和热驯化可以改变温度耐受性的测量。使用新的实验数据和文献中的数据，我们表明，这些因素相互作用，并在全球范围内的生物体对气候变化的脆弱性估计的后果。临界热极限是估算全球变化对外温生物影响的一个日益重要的组成部分。然而，在温度变化率（或实验升温率）和驯化对临界温度极限和变暖耐受性（评估气候变化敏感性的一种方法）的相互作用中是否存在任何一致的模式，还远不清楚。在这里，我们研究的相互作用的影响斜坡率和驯化的临界热最大值（CTmax）和最小值（CTmin）和变暖的耐受性的六种跳虫从亚热带，温带和极地地区。我们还提供了来自26个地点的微生境温度，跨越5年，以基准环境相关的温度变化率。升温速率对CTmax的影响大于驯化，但对CTmin的影响则相反。速率和驯化效果的反应是更一致的物种之间的CTmax比CTmin。在后一种情况下，爬坡率和驯化之间的相互作用是典型的极地物种，温带的不太明显，减少从亚热带的物种。升温速率和驯化对耐温性的影响较大，其中升温速率的影响更为显著。在最快的升温速率（>1.0°C/min）下，热带物种的变暖耐受性与温带物种相似，而在缓慢的升温速率（<0.4°C/min）下，热带物种的变暖耐受性大大降低。与跳虫相关的微生境的温度变化率通常<0.05°C/min，根据地点的不同，最大值为0.3-0.5°C/min。这些研究结果强调，在使用变暖容忍度方法评估物种对气候变化的脆弱性时，需要考虑环境设置和实验条件。
Rates of temperature change and thermal acclimation can alter measures of temperature tolerance. Using new experimental data on springtails and data from the literature, we show that these factors interact and have consequences for estimates of organismal vulnerability to climate change at global scales. Critical thermal limits form an increasing component of the estimation of impacts of global change on ectotherms. Whether any consistent patterns exist in the interactive effects of rates of temperature change (or experimental ramping rates) and acclimation on critical thermal limits and warming tolerance (one way of assessing sensitivity to climate change) is, however, far from clear. Here, we examine the interacting effects of ramping rate and acclimation on the critical thermal maxima (CTmax) and minima (CTmin) and warming tolerance of six species of springtails from sub-tropical, temperate and polar regions. We also provide microhabitat temperatures from 26 sites spanning 5 years in order to benchmark environmentally relevant rates of temperature change. Ramping rate has larger effects than acclimation on CTmax, but the converse is true for CTmin. Responses to rate and acclimation effects are more consistent among species for CTmax than for CTmin. In the latter case, interactions among ramping rate and acclimation are typical of polar species, less marked for temperate ones, and reduced in species from the sub-tropics. Ramping rate and acclimation have substantial effects on estimates of warming tolerance, with the former being more marked. At the fastest ramping rates (>1.0°C/min), tropical species have estimated warming tolerances similar to their temperate counterparts, whereas at slow ramping rates (<0.4°C/min) the warming tolerance is much reduced in tropical species. Rates of temperate change in microhabitats relevant to the springtails are typically <0.05°C/min, with rare maxima of 0.3–0.5°C/min depending on the site. These findings emphasize the need to consider the environmental setting and experimental conditions when assessing species’ vulnerability to climate change using a warming tolerance approach.
登录
查看更多内容
影响因子：
1.4
作者：
BECKER, CD;GENOWAY, RG
通讯作者：
GENOWAY, RG
影响因子：
5.2
作者：
Chevin, Luis-Miguel;Collins, Sinead;Lefevre, Francois
通讯作者：
Lefevre, Francois
影响因子：
2.2
作者：
Allen, Jessica L.;Clusella-Trullas, Susana;Chown, Steven L.
通讯作者：
Chown, Steven L.
DOI：
10.1098/rspb.2015.0441
发表时间：
2015-06-22
影响因子：
4.7
作者：
Buckley, Lauren B.;Nufio, Cesar R.;Kingsolver, Joel G.
通讯作者：
Kingsolver, Joel G.
影响因子：
4.8
作者：
Baudier, Kaitlin M.;Mudd, Abigail E.;O'Donnell, Sean
通讯作者：
O'Donnell, Sean