干旱区生态环境知识资源中心(Arid): Egg investment strategies adopted by a desertic passerine, the Saxaul Sparrow (Passer ammodendri)

Arid

DOI	10.1186/s40657-020-00201-0
	Egg investment strategies adopted by a desertic passerine, the Saxaul Sparrow (Passer ammodendri)
	Bao, Xinkang 1; Zhao, Wei 1; Liu, Fangqing 2; Li, Jianliang 1; Ma, Donghui 1
通讯作者	Bao, Xinkang
来源期刊	AVIAN RESEARCH
ISSN	2053-7166
出版年	2020
卷号	11 期号:1
英文摘要	Background As one of the reproductive strategies adopted by bird species, variation in investment in egg production and its influencing factors are important and well-studied subjects. Intraclutch changes in egg size associated with laying order may reflect a strategy of brood survival or brood reduction adopted by female birds in different situations. Methods We conducted field studies on the breeding parameters of the Saxaul Sparrow (Passer ammodendri) in Gansu Province, China from 2010 to 2017, to clarify the factors affecting the egg investment and reproductive performance of this passerine species. Results Our results revealed significant differences in clutch size, egg size and the fledging rate between the first and second brood of Saxaul Sparrows and suggested that this typical desert species allocates more breeding resources to the more favourable second brood period, leading to greater reproductive output. Female body size presented a positive relationship with egg size, and male body size presented positive relationships with clutch size and hatchability. The females that started their clutches later laid more eggs, and hatchability and the fledging rate also increased with a later laying date in the first brood period. With successive eggs laid within the 5-egg clutches (the most frequent clutch size), egg size increased for the first three eggs and then significantly decreased. Conclusions Our results indicate that female Saxaul Sparrows increased egg investment because of good quality of paired males and good environmental conditions. The intraclutch variation of egg size suggests that this species inhabiting an arid environment adopts a brood reduction strategy.
英文关键词	Brood reduction strategy Clutch size Egg size Fledging rate Hatchability Reproductive strategy Saxaul Sparrow
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000536704900001
WOS关键词	CLUTCH-SIZE ; SEASONAL-CHANGES ; AVAILABILITY ; REPRODUCTION ; LIMITATION ; DECLINE ; QUALITY ; BIRDS ; DATE
WOS类目	Ornithology
WOS研究方向	Zoology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319131
作者单位	1.Lanzhou Univ, Sch Life Sci, Gansu Key Lab Biomonitoring & Bioremediat Environ, Lanzhou 730000, Peoples R China; 2.Leshan Normal Univ, Key Lab Sichuan Inst Protecting Endangered Birds, Coll Life Sci, Leshan 614000, Peoples R China
推荐引用方式 GB/T 7714	Bao, Xinkang,Zhao, Wei,Liu, Fangqing,et al. Egg investment strategies adopted by a desertic passerine, the Saxaul Sparrow (Passer ammodendri)[J]. 兰州大学,2020,11(1).
APA	Bao, Xinkang,Zhao, Wei,Liu, Fangqing,Li, Jianliang,&Ma, Donghui.(2020).Egg investment strategies adopted by a desertic passerine, the Saxaul Sparrow (Passer ammodendri).AVIAN RESEARCH,11(1).
MLA	Bao, Xinkang,et al."Egg investment strategies adopted by a desertic passerine, the Saxaul Sparrow (Passer ammodendri)".AVIAN RESEARCH 11.1(2020).