气候变化领域集成服务门户(CCPortal): Living in a challenging environment: Monitoring stress ecology by non-destructive methods in an Antarctic seabird

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DOI	10.1016/j.scitotenv.2024.171249
	Living in a challenging environment: Monitoring stress ecology by non-destructive methods in an Antarctic seabird
	Olmastroni, Silvia; Simonetti, Silvia; Fattorini, Niccolo; D'Amico, Veronica; Cusset, Fanny; Bustamante, Paco; Cherel, Yves; Corsi, Ilaria
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	922
卷号	922
英文摘要	How Antarctic species are facing historical and new stressors remains under-surveyed and risks to wildlife are still largely unknown. Ade ' lie penguins Pygoscelis adeliae are well-known bioindicators and sentinels of Antarctic ecosystem changes, a true canary in the coal mine. Immuno-haematological parameters have been proved to detect stress in wild animals, given their rapid physiological response that allows them tracking environmental changes and thus inferring habitat quality. Here, we investigated variation in Erythrocyte Nuclear Abnormalities (ENAs) and White Blood Cells (WBCs) in penguins from three clustered colonies in the Ross Sea, evaluating immuno-haematological parameters according to geography, breeding stage, and individual penguin characteristics such as sex, body condition and nest quality. Concentrations of mercury (Hg) and stable isotopes of carbon and nitrogen (as proxies of the penguin's trophic ecology) were analysed in feathers to investigate the association between stress biomarkers and Hg contamination in Ade ' lie penguins. Colony and breeding stage were not supported as predictors of immuno-haematological parameters. ENAs and WBCs were respectively -30 % and -20 % higher in male than in female penguins. Body condition influenced WBCs, with penguins in the best condition having a -22 % higher level of WBCs than those in the worst condition. Nest position affected the proportion of micronuclei (MNs), with inner-nesting penguins having more than three times the proportion of MNs than penguins nesting in peripheral positions. Heterophils:Lymphocytes (H:L) ratio was not affected by any of the above predictors. Multiple factors acting as stressors are expected to increase prominently in Antarctic wildlife in the near future, therefore extensive monitoring aimed to assess the health status of penguin populations is mandatory.
英文关键词	Adelie penguin; Immuno-haematological parameters; Mercury; Stress ecology; Trophic ecology; Ross Sea; Antarctica
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001204148900001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302361
作者单位	University of Siena; University of Siena; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute of Ecology & Environment (INEE); Centre National de la Recherche Scientifique (CNRS); CNRS - Institute of Ecology & Environment (INEE)
推荐引用方式 GB/T 7714	Olmastroni, Silvia,Simonetti, Silvia,Fattorini, Niccolo,et al. Living in a challenging environment: Monitoring stress ecology by non-destructive methods in an Antarctic seabird[J],2024,922.
APA	Olmastroni, Silvia.,Simonetti, Silvia.,Fattorini, Niccolo.,D'Amico, Veronica.,Cusset, Fanny.,...&Corsi, Ilaria.(2024).Living in a challenging environment: Monitoring stress ecology by non-destructive methods in an Antarctic seabird.SCIENCE OF THE TOTAL ENVIRONMENT,922.
MLA	Olmastroni, Silvia,et al."Living in a challenging environment: Monitoring stress ecology by non-destructive methods in an Antarctic seabird".SCIENCE OF THE TOTAL ENVIRONMENT 922(2024).