Arid
DOI10.1093/beheco/10.2.185
Brood desertion in Kentish plover: sex differences in remating opportunities
Szekely, T; Cuthill, IC; Kis, J
通讯作者Szekely, T
来源期刊BEHAVIORAL ECOLOGY
ISSN1045-2249
出版年1999
卷号10期号:2页码:185-190
英文摘要

To understand the evolution of parental care, one needs to estimate the payoffs from providing care for the offspring and the payoffs from terminating care and deserting them. These payoffs are rarely known. In this study we experimentally estimated the rewards from brood desertion in a species that has a variable pattern of parental care. In particular, either the female or the male parent may desert the brood in Kentish plover Charadrius alexandrinus, so some broods are attended by one parent of either sex, whereas in other broods both parents stay with the brood until the chicks fledge. We created single males and single females by experimentally removing the other parent and the clutch. The expected remating time of males was significantly higher (median: 25.4 days) than that of the females (5.3 days, p <.0001). The expected remating time tended to increase over the breeding season in both sexes, although the increase was significant only in females. The new nest of remated males was closer to their previous territory (mean +/- SE, 46 +/- 8 m) than that of the remated females (289 +/- 57 m, p <.001). Hatching success of new nests was not different between remated males and females. Our results demonstrate that the remating opportunities are different for male and female Kentish plovers and these opportunities vary over the season. We propose that the remating opportunities were influenced by the male-biased adult sex ratio and the seasonal decrease in the number of breeders. However, we stress that measuring remating times is a more direct measure of mating opportunities than calculating the operational sex ratio.


英文关键词Charadrius alexandrinus Kentish plover mate removal mating opportunity offspring desertion operational sex ratio parental care
类型Article
语种英语
国家England
收录类别SCI-E
WOS记录号WOS:000079642600011
WOS关键词PARENTAL CARE ; CHARADRIUS-ALEXANDRINUS ; MATE DESERTION ; MATING SYSTEM ; SNOWY PLOVERS ; SELECTION ; COMPETITION ; INVESTMENT ; RATIOS ; ALLOCATION
WOS类目Behavioral Sciences ; Biology ; Ecology ; Zoology
WOS研究方向Behavioral Sciences ; Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/137007
作者单位(1)Univ Bristol, Ctr Behav Biol, Sch Biol Sci, Bristol BS8 1UG, Avon, England
推荐引用方式
GB/T 7714
Szekely, T,Cuthill, IC,Kis, J. Brood desertion in Kentish plover: sex differences in remating opportunities[J],1999,10(2):185-190.
APA Szekely, T,Cuthill, IC,&Kis, J.(1999).Brood desertion in Kentish plover: sex differences in remating opportunities.BEHAVIORAL ECOLOGY,10(2),185-190.
MLA Szekely, T,et al."Brood desertion in Kentish plover: sex differences in remating opportunities".BEHAVIORAL ECOLOGY 10.2(1999):185-190.
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