Trends in breeding phenology across ten decades show varying adjustments to environmental changes in four wader species
Trends in breeding phenology across ten decades show varying adjustments to environmental changes in four wader species
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十年来繁殖物候学的趋势显示四种涉禽物种对环境变化的不同调整
DOI：
10.1080/00063657.2018.1444014
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发表时间：
2018
期刊：
影响因子：
0.7
通讯作者：
A. P. Tøttrup
中科院分区：
文献类型：
--
作者：
H. Meltofte;Ole Amstrup;Troels Petersen;F. Rigét;A. P. Tøttrup
摘要胶囊：1928-2016年间，2种涉禽提前产卵，1种不变，1种推迟产卵。气候变量和迁徙策略的差异可以解释不同年份和不同物种之间的变化。目的：记录自20世纪初以来常见丹麦涉禽物种在产卵启动方面的可能变化，并寻找产卵、到达时间和环境因素之间的可能相关性。方法：对1928-2016年在丹麦西部蒂珀尔尼科学保护区发现的第一批蛋和雏鸟的年度记录进行线性回归分析，以确定产蛋时间、繁殖前的长度和气候因素的影响。结果：以冬季北大西洋涛动指数和春季温度为重要预测因子，两种中短途迁徙涉禽种群--白腹罗非鱼和长尾白腹鱼的繁殖启动时间提前了一周左右。相比之下，两只长途候鸟，黑尾戈德维特·利莫萨和拉夫·卡里德里斯·布格纳克斯并没有提前产卵，拉夫实际上推迟了产卵。结果表明，黑尾高德威特(21天)和鲁夫(52天)的产蛋期显著延长，而红尾寒羊(Common Redshank)的产蛋期没有显著变化。结论：长途候鸟能够适应春季到来，但与中短途候鸟不同，长途候鸟不一定调整繁殖开始。
ABSTRACT Capsule: During 1928–2016, initiation of egg-laying advanced in two wader species, remained unchanged in one, and was delayed in one species. The changes across years and variation among species can be explained by climatic variables and differences in migratory strategies. Aims: To document possible changes in initiation of egg-laying in common Danish wader species since the early part of the 20th century and seek possible correlations between egg-laying, timing of arrival and environmental factors. Methods: Annual records of the first eggs and chicks found on the scientific reserve of Tipperne in western Denmark 1928–2016 were analysed using linear regression to determine patterns in timing of egg-laying, pre-breeding length and influence of climate factors. Results: Two short/medium-distance migrant wader species, Northern Lapwing Vanellus vanellus and Common Redshank Tringa totanus advanced breeding initiation by about one week, with winter North Atlantic oscillation Index and spring temperature as important predictors. By contrast, two long-distance migrants, Black-tailed Godwit Limosa limosa and Ruff Calidris pugnax, did not advance egg-laying, and Ruff actually delaying it. As a result, the pre-laying period was significantly prolonged in both Black-tailed Godwit (21 days) and Ruff (52 days), while there was no significant change for Common Redshank. Conclusion: Long-distance migrants are able to adjust spring arrival but unlike short/medium-distance migrants, do not necessarily adjust breeding initiation.