Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10336-015-1198-1 |
Access to water affects the condition dependency of nocturnal restlessness in Garden Warblers on a Mediterranean island stopover | |
Skrip, Megan M.1; Bauchinger, Ulf2; Goymann, Wolfgang3; Fusani, Leonida4; McWilliams, Scott R.1 | |
通讯作者 | Skrip, Megan M. |
会议名称 | 26th International Ornithological Congress (IOC) |
会议日期 | AUG 18-24, 2014 |
会议地点 | Tokyo, JAPAN |
英文摘要 | During migration, many songbirds encounter large ecological barriers, like deserts and seas that require substantial fuel to cross and can lead to dehydration during passage. If muscle is not catabolized to generate metabolic water, birds must seek free water on a subsequent stopover to replenish the water lost. Yet, no work has examined if birds crossing large migration barriers use access to free water in concert with energy or protein stores to make stopover decisions. We captured 61 free-living Garden Warblers (Sylvia borin) in spring at a frequently used stopover site in the Mediterranean Sea, housed them with or without drinking water, and measured nocturnal restlessness (Zugunruhe) in relation to energy stores at capture. Both groups lost equivalent flight muscle mass overnight, suggesting that water-deprived birds did not preferentially catabolize this tissue to produce metabolic water. Fat score and body mass, but not flight muscle mass, were positively correlated with nocturnal activity in both treatment groups. However, the slope of the relationship between nocturnal activity and fat score differed between groups, with water-deprived birds of high fat score showing the highest Zugunruhe activity. Our results suggest that birds with large energy stores use access to drinking water to inform their decisions about when to depart from a stopover site. Individuals with higher fat scores might be expected, regardless of flight muscle size, to depart a dry stopover site more readily than a site with freely available water. We suggest follow-up studies to further elucidate the mechanisms of this phenomenon and establish its prevalence in free-living birds. |
英文关键词 | Condition dependency Dehydration Migration Stopover Zugunruhe |
来源出版物 | JOURNAL OF ORNITHOLOGY |
ISSN | 2193-7192 |
EISSN | 2193-7206 |
出版年 | 2015 |
卷号 | 156 |
页码 | S425-S432 |
出版者 | SPRINGER HEIDELBERG |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | USA;Poland;Germany;Italy |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000367457200038 |
WOS关键词 | METABOLIC CONSTRAINTS ; MIGRATORY BLACKCAPS ; FUEL DEPOSITION ; BODY-WATER ; BIRDS ; FAT ; ENERGY ; AVAILABILITY ; DEHYDRATION ; FLIGHT |
WOS类目 | Ornithology |
WOS研究方向 | Zoology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/303884 |
作者单位 | 1.Univ Rhode Isl, Dept Nat Resources Sci, Kingston, RI 02881 USA; 2.Jagiellonian Univ, Inst Environm Sci, PL-30387 Krakow, Poland; 3.Max Planck Inst Ornithol, Abt Verhaltensneurobio, Seewiesen, Germany; 4.Univ Ferrara, Dept Life Sci & Biotechnol, I-44100 Ferrara, Italy |
推荐引用方式 GB/T 7714 | Skrip, Megan M.,Bauchinger, Ulf,Goymann, Wolfgang,et al. Access to water affects the condition dependency of nocturnal restlessness in Garden Warblers on a Mediterranean island stopover[C]:SPRINGER HEIDELBERG,2015:S425-S432. |
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