Arid
DOI10.1163/000579511X596589
Effects of stage in incubation, time in season, and proportion of original clutch remaining on nest desertion by house sparrows, Passer domesticus
Johnston, Jason C.
通讯作者Johnston, Jason C.
来源期刊BEHAVIOUR
ISSN0005-7959
出版年2011
卷号148期号:9-10页码:1121-1135
英文摘要

Life history theory predicts that individuals should maximize their fitness by balancing current investment in offspring versus future prospects for reproduction. Faced with reduction of their current clutch, birds should desert if the prospective opportunity would increase inclusive fitness more than continued investment in the reduced clutch. I studied nest desertion in response to clutch reduction by house sparrows (Passer domesticus) to determine if continuing investment in a reduced clutch differs based on proportion of original clutch remaining, stage in incubation, and ordinal date. Nests were reduced to two eggs early or late in incubation over two complete breeding seasons. Of 150 nests manipulated, 36 were deserted. Nests were more likely to be deserted when reduction occurred earlier in incubation, earlier in the season, and with a smaller proportion of original clutch remaining. This suggests that both time and brood size are used to assess the tradeoffs between current and future investment. However, near the end of the breeding season, the proportion of original clutch remaining and stage in incubation were less important, and low desertion was likely associated with a lack of re-nesting opportunities in the current season. Therefore, whether to desert or continue investing in a reduced clutch is a function of offspring reproductive value (RV) when there is opportunity for re-nesting in the same season. However, near the end of the season the decision is based on the residual reproductive value (RRV) of parents.


英文关键词nest desertion parental investment clutch manipulation reproductive value Passer domesticus
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000296610000007
WOS关键词CUCULUS-CANORUS EGGS ; PARENTAL INVESTMENT ; FUTURE REPRODUCTION ; COWBIRD PARASITISM ; CONCORDE FALLACY ; DABBLING DUCKS ; DEFENSE ; BROOD ; SURVIVAL ; YOUNG
WOS类目Behavioral Sciences ; Zoology
WOS研究方向Behavioral Sciences ; Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167339
作者单位Univ Delaware, Dept Entomol & Wildlife Ecol, Newark, DE 95716 USA
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GB/T 7714
Johnston, Jason C.. Effects of stage in incubation, time in season, and proportion of original clutch remaining on nest desertion by house sparrows, Passer domesticus[J],2011,148(9-10):1121-1135.
APA Johnston, Jason C..(2011).Effects of stage in incubation, time in season, and proportion of original clutch remaining on nest desertion by house sparrows, Passer domesticus.BEHAVIOUR,148(9-10),1121-1135.
MLA Johnston, Jason C.."Effects of stage in incubation, time in season, and proportion of original clutch remaining on nest desertion by house sparrows, Passer domesticus".BEHAVIOUR 148.9-10(2011):1121-1135.
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