Consequences of spring arrival dates for the breeding phenology of migratory warblers
Consequences of spring arrival dates for the breeding phenology of migratory warblers
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春季到来日期对迁徙莺繁殖物候的影响
DOI：
10.1080/00063657.2021.1962804
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发表时间：
2021
期刊：
影响因子：
0.7
通讯作者：
Donelan J
中科院分区：
文献类型：
--
作者：
Donelan J
囊早期男性到达繁殖地的结果在早期配对，但不是早期筑巢在ChiffchafsPhylloscopuscollybita，和Chiffchafs可以巢，失败，并重新巢之前杨柳Phylloscopustrochilus开始筑巢。和短距离的重新嵌套（Chiffchaff）和远程（杨柳莺）migrants.MethodsThe抵达日期的118 Chiffchaffs和20杨柳莺测量3月至6月超过10周的福克斯利木材自然保护区，诺福克。色环的56 Chiffchaffs（55名男性，1名女性）和11杨柳莺（10名男性，1名女性）被用来与个人到达日期的男性配对，离合器启动，并重新nesting.ResultsMale Chiffchaffs开始在3月初到达，并迅速增加的数量，直到4月初，而男性杨柳莺的到来开始在4月初。早到的男性Chiffchaffs配对早于晚到的个人，但离合器开始的时间是无关的男性到达日期。早期筑巢的Chiffchaffs允许更换离合器后，巢损失，最早的发生12天后，第一杨柳莺男性已paired.ConclusionsAlthough早期到达男性Chiffchaffs不转化为早期筑巢，筑巢的时间在Chiffchaffs是足够早，让时间更换离合器后，巢损失。 后来抵达的杨柳莺很可能意味着更少的机会更换离合器后，巢损失。因此，繁殖物候的这种差异可能导致物种之间生产力的差异，特别是如果巢失败率很高。
CapsuleEarly male arrival on the breeding grounds results in early pairing but not early nesting in ChiffchaffsPhylloscopus collybita, and Chiffchaffs can nest, fail, and re-nest before Willow WarblersPhylloscopus trochilusbegin nesting.AimsTo quantify the consequences of timing of arrival for the subsequent timing of pairing, nesting, and re-nesting of short-distance (Chiffchaff) and long-distance (Willow Warbler) migrants.MethodsThe arrival dates of 118 Chiffchaffs and 20 Willow Warblers were measured from March to June over 10 weeks in Foxley Wood nature reserve, Norfolk. Colour-ringing of 56 Chiffchaffs (55 males, 1 female) and 11 Willow Warblers (10 males, 1 female) was used to relate individual arrival dates to timing of male pairing, clutch initiation, and re-nesting.ResultsMale Chiffchaffs started to arrive in early March and increased rapidly in number until early April, while the arrival of male Willow Warblers began in early April. Early-arriving male Chiffchaffs paired earlier than later-arriving individuals, but timing of clutch initiation was unrelated to male arrival dates. Early nesting by Chiffchaffs allowed replacement clutches following nest loss, the earliest of which occurred 12 days after the first Willow Warbler male had paired.ConclusionsAlthough early arrival in male Chiffchaffs does not translate into earlier nesting, timing of nesting in Chiffchaffs was sufficiently early to allow time for replacement clutches following nest loss. The later arrival of Willow Warblers is likely to mean fewer opportunities for replacement clutches following nest loss. This difference in breeding phenology could therefore contribute to differences in productivity between the species, especially if nest failure rates are high.
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DOI：
--
发表时间：
2001
期刊：
影响因子：
--
作者：
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影响因子：
0.7
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
2.5
作者：
M. Rodrigues
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