globalchange  > 全球变化的国际研究计划
DOI: 10.1002/ece3.5481
WOS记录号: WOS:000479777700001
论文题名:
The interaction between island geomorphology and environmental parameters drives Adelie penguin breeding phenology on neighboring islands near Palmer Station, Antarctica
作者: Cimino, Megan A.1; Patterson-Fraser, Donna L.2; Stammerjohn, Sharon3; Fraser, William R.2
通讯作者: Cimino, Megan A.
刊名: ECOLOGY AND EVOLUTION
ISSN: 2045-7758
出版年: 2019
卷: 9, 期:16, 页码:9334-9349
语种: 英语
英文关键词: Adelie penguin ; breeding phenology ; climate change ; ecological threshold ; environmental drivers ; sea ice
WOS关键词: LARGE-SCALE CLIMATE ; SEA-ICE ; MARINE ECOSYSTEM ; COMMUNITY COMPOSITION ; REPRODUCTIVE SUCCESS ; PENINSULA REGION ; SOUTHERN-OCEAN ; VARIABILITY ; BIRDS ; IMPACT
WOS学科分类: Ecology ; Evolutionary Biology
WOS研究方向: Environmental Sciences & Ecology ; Evolutionary Biology
英文摘要:

Despite many studies on Adelie penguin breeding phenology, understanding the drivers of clutch initiation dates (CIDs, egg 1 lay date) is limited or lacks consensus. Here, we investigated Adelie penguin CIDs over 25 years (1991-2016) on two neighboring islands, Torgersen and Humble (<1 km apart), in a rapidly warming region near Palmer Station, Antarctica. We found that sea ice was the primary large-scale driver of CIDs and precipitation was a secondary small-scale driver that fine-tunes CID to island-specific nesting habitat geomorphology. In general, CIDs were earlier (later) when the spring sea ice retreat was earlier (later) and when the preceding annual ice season was shorter (longer). Island-specific effects related to precipitation and island geomorphology caused greater snow accumulation and delayed CIDs by similar to 2 days on Torgersen compared to Humble Island. When CIDs on the islands were similar, conditions were mild with less snow across breeding sites. At Torgersen Island, the negative relationship between CID and breeding success highlights detrimental effects of delayed breeding and/or snow on penguin fitness. Past phenological studies reported a relationship between air temperature and CID, assumed to be related to precipitation, but we found air temperature was more highly correlated to sea ice, revealing a misinterpretation of temperature effects. Finally, contrasting trends in CIDs based on temporal shifts in regional sea ice patterns revealed trends toward earlier CIDs (4-6 day advance) from 1979 to 2009 as the annual ice season shortened, and later CIDs (7-10 day delay) from 2010 to 2016 as the annual ice season lengthened. Adelie penguins tracked environmental conditions with flexible breeding phenology, but their life history remains vulnerable to subpolar weather conditions that can delay CIDs and decrease breeding success, especially on landscapes where geomorphology facilitates snow accumulation.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/143898
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Univ Calif Santa Cruz, Inst Marine Sci, 1156 High St, Santa Cruz, CA 95064 USA
2.Polar Oceans Res Grp, Sheridan, MT USA
3.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA

Recommended Citation:
Cimino, Megan A.,Patterson-Fraser, Donna L.,Stammerjohn, Sharon,et al. The interaction between island geomorphology and environmental parameters drives Adelie penguin breeding phenology on neighboring islands near Palmer Station, Antarctica[J]. ECOLOGY AND EVOLUTION,2019-01-01,9(16):9334-9349
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