干旱区生态环境知识资源中心(Arid): Social dominance and rainfall predict telomere dynamics in a cooperative arid-zone bird

Arid

DOI	10.1111/mec.15868
	Social dominance and rainfall predict telomere dynamics in a cooperative arid-zone bird
	Wood, Emma M.; Capilla-Lasheras, Pablo; Cram, Dominic L.; Walker, Lindsay A.; York, Jenny E.; Lange, Anke; Hamilton, Patrick B.; Tyler, Charles R.; Young, Andrew J.
通讯作者	Wood, EM ; Young, AJ (corresponding author), Univ Exeter, Ctr Ecol & Conservat, Penryn Campus, Penryn TR10 9EZ, England.
来源期刊	MOLECULAR ECOLOGY
ISSN	0962-1083
EISSN	1365-294X
出版年	2021-05
英文摘要	In many vertebrate societies dominant individuals breed at substantially higher rates than subordinates, but whether this hastens ageing remains poorly understood. While frequent reproduction may trade off against somatic maintenance, the extraordinary fecundity and longevity of some social insect queens highlight that breeders need not always suffer more rapid somatic deterioration than their nonbreeding subordinates. Here, we used extensive longitudinal assessments of telomere dynamics to investigate the impact of dominance status on within-individual age-related changes in somatic integrity in a wild social bird, the white-browed sparrow-weaver (Plocepasser mahali). Dominant birds, who monopolise reproduction, had neither shorter telomeres nor faster telomere attrition rates over the long-term (1-5 years) than their subordinates. However, over shorter (half-year) time intervals dominants with shorter telomeres showed lower rates of telomere attrition (and evidence suggestive of telomere lengthening), while the same was not true among subordinates. Dominants may therefore invest more heavily in telomere length regulation (and/or somatic maintenance more broadly); a strategy that could mitigate the long-term costs of reproductive effort, leaving their long-term telomere dynamics comparable to those of subordinates. Consistent with the expectation that reproduction entails short-term costs to somatic integrity, telomere attrition rates were most severe for all birds during the breeding seasons of wetter years (rainfall is the key driver of reproductive activity in this arid-zone species). Our findings suggest that, even in vertebrate societies in which dominants monopolise reproduction, dominants may experience long-term somatic integrity trajectories indistinguishable from those of their nonreproductive subordinates.
英文关键词	life‐ history reproduction social dominance somatic maintenance telomere dynamics
类型	Article ; Early Access
语种	英语
开放获取类型	Green Accepted, hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000651296100001
WOS关键词	HEMATOPOIETIC STEM-CELLS ; BROWED SPARROW WEAVER ; SUBORDINATE REPRODUCTION ; LENGTHENING CONUNDRUM ; QUANTITATIVE PCR ; BASE-LINE ; LIFE ; POPULATION ; STRESS ; MORTALITY
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352399
作者单位	[Wood, Emma M.; Young, Andrew J.] Univ Exeter, Ctr Ecol & Conservat, Penryn Campus, Penryn TR10 9EZ, England; [Capilla-Lasheras, Pablo] Univ Glasgow, Inst Biodivers Anim Hlth & Comparat Med, Glasgow, Lanark, Scotland; [Cram, Dominic L.; York, Jenny E.] Univ Cambridge, Dept Zool, Cambridge, England; [Walker, Lindsay A.; Lange, Anke; Hamilton, Patrick B.; Tyler, Charles R.] Univ Exeter, Coll Life & Environm Sci, Biosci, Exeter, Devon, England; [York, Jenny E.] Univ Pretoria, Dept Zool & Entomol, Pretoria, South Africa; [York, Jenny E.] Princeton Univ, Dept Ecol & Evolutionary Biol, Princeton, NJ 08544 USA
推荐引用方式 GB/T 7714	Wood, Emma M.,Capilla-Lasheras, Pablo,Cram, Dominic L.,et al. Social dominance and rainfall predict telomere dynamics in a cooperative arid-zone bird[J],2021.
APA	Wood, Emma M..,Capilla-Lasheras, Pablo.,Cram, Dominic L..,Walker, Lindsay A..,York, Jenny E..,...&Young, Andrew J..(2021).Social dominance and rainfall predict telomere dynamics in a cooperative arid-zone bird.MOLECULAR ECOLOGY.
MLA	Wood, Emma M.,et al."Social dominance and rainfall predict telomere dynamics in a cooperative arid-zone bird".MOLECULAR ECOLOGY (2021).