亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Hot and dry conditions predict shorter nestling telomeres in an endangered songbird: Implications for population persistence

生物 人口 生态学 濒危物种 气候变化 物候学 鸣鸟 生殖成功 持久性(不连续性) 动物 人口学 栖息地 工程类 社会学 岩土工程
作者
Justin R. Eastwood,Tim Connallon,Kaspar Delhey,Michelle L. Hall,Niki Teunissen,Sjouke A. Kingma,Ariana M. La Porte,Simon Verhulst,Anne Peters
出处
期刊:Proceedings of the National Academy of Sciences of the United States of America [National Academy of Sciences]
卷期号:119 (25) 被引量:5
标识
DOI:10.1073/pnas.2122944119
摘要

Climate warming is increasingly exposing wildlife to sublethal high temperatures, which may lead to chronic impacts and reduced fitness. Telomere length (TL) may link heat exposure to fitness, particularly at early-life stages, because developing organisms are especially vulnerable to adverse conditions, adversity can shorten telomeres, and TL predicts fitness. Here, we quantify how climatic and environmental conditions during early life are associated with TL in nestlings of wild purple-crowned fairy-wrens (Malurus coronatus), endangered songbirds of the monsoonal tropics. We found that higher average maximum air temperature (range 31 to 45 °C) during the nestling period was associated with shorter early-life TL. This effect was mitigated by water availability (i.e., during the wet season, with rainfall), but independent of other pertinent environmental conditions, implicating a direct effect of heat exposure. Models incorporating existing information that shorter early-life TL predicts shorter lifespan and reduced fitness showed that shorter TL under projected warming scenarios could lead to population decline across plausible future water availability scenarios. However, if TL is assumed to be an adaptive trait, population viability could be maintained through evolution. These results are concerning because the capacity to change breeding phenology to coincide with increased water availability appears limited, and the evolutionary potential of TL is unknown. Thus, sublethal climate warming effects early in life may have repercussions beyond individual fitness, extending to population persistence. Incorporating the delayed reproductive costs associated with sublethal heat exposure early in life is necessary for understanding future population dynamics with climate change.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
StonesKing完成签到,获得积分10
18秒前
Orange应助lf采纳,获得10
19秒前
hky完成签到,获得积分10
24秒前
量子星尘发布了新的文献求助10
25秒前
28秒前
lf发布了新的文献求助10
32秒前
33秒前
37秒前
文文课堂发布了新的文献求助10
38秒前
秀丽松思完成签到 ,获得积分10
53秒前
55秒前
为神指路发布了新的文献求助10
56秒前
1分钟前
葛力发布了新的文献求助10
1分钟前
1分钟前
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
555557应助科研通管家采纳,获得10
1分钟前
1分钟前
1分钟前
顺心蜜粉发布了新的文献求助200
1分钟前
葛力完成签到,获得积分20
1分钟前
1分钟前
量子星尘发布了新的文献求助10
2分钟前
2分钟前
916应助葛力采纳,获得10
2分钟前
2分钟前
2分钟前
朴素的山蝶完成签到 ,获得积分10
2分钟前
2分钟前
夜洛乌泽发布了新的文献求助10
2分钟前
2分钟前
顺心蜜粉发布了新的文献求助10
2分钟前
2分钟前
3分钟前
背后梦安发布了新的文献求助30
3分钟前
3分钟前
善学以致用应助lf采纳,获得10
3分钟前
3分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976649
求助须知:如何正确求助?哪些是违规求助? 3520749
关于积分的说明 11204693
捐赠科研通 3257497
什么是DOI,文献DOI怎么找? 1798716
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629