荷兰加勒比海圣尤斯特修斯岛红嘴热带鸟(Phaethon aethereus)繁殖成功率

IF 0.7 4区 生物学 Q3 ORNITHOLOGY
Waterbirds Pub Date : 2022-11-11 DOI:10.1675/063.045.0106
H. Madden, M. Leopold, F. Rivera-Milán, K. Verdel, Eline Eggermont, P. Jodice
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引用次数: 1

摘要

摘要在加勒比海的圣尤斯特修斯岛,对红嘴热带鸟(Phaethon aethereus)在六个繁殖季节的每日巢存活率进行了估计。我们分析了2013年至2020年间的338次筑巢尝试。将热带鸟巢的日存活率(DSR)建模为建巢日期、海温、海拔、巢前植被和年份的函数。最佳拟合模型的年窝成活率(±SE)范围为0.21±0.06 ~ 0.74±0.13 (n = 338窝)。在所有年份的数据汇总中,最节俭模型的DSR在孵育期平均为0.39±0.04,在育雏期平均为0.83±0.05,在筑巢期(从孵化到羽化)平均为0.30±0.04。在孵化期和筑巢期,结合海温和海拔高度的成巢日期线性和二次趋势模型得到了强有力的支持。在海温较低的高峰筑巢季节筑巢的巢比在筑巢季节早期或后期筑巢的巢有更高的DSR估计。与来自萨巴和加利福尼亚湾的同一物种的研究相比,圣尤斯特休斯的存活率在孵化阶段较低,而在养鸡期间较高。与加利福尼亚湾的种群相似,热带鸟的繁殖和产蛋日期也存在年际差异,生存受到海温的影响。我们的研究结果与对百慕大白尾热带鸟(Phaethon lepturus)的研究一致,该研究发现生存受时间因素而不是物理地点特征的影响。我们的研究有助于更好地了解影响加勒比小岛上红嘴热带鸟生存的因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reproductive Success of Red-Billed Tropicbirds (Phaethon aethereus) on St. Eustatius, Caribbean Netherlands
Abstract. The daily nest-survival rates of Red-billed Tropicbirds (Phaethon aethereus) were estimated over six breeding seasons on St. Eustatius in the Caribbean. We analyzed 338 nesting attempts between 2013 and 2020. The daily survival rate (DSR) of tropicbird nests was modeled as a function of nest initiation date, sea surface temperature (SST), elevation, vegetation in front of the nest, and year. Yearly nest survival rates (± SE) of the best fitting models ranged from 0.21 ± 0.06–0.74 ± 0.13 (n = 338 nests). DSR of the most parsimonious models averaged 0.39 ± 0.04 during the incubation period, 0.83 ± 0.05 during the chick-rearing period, and 0.30 ± 0.04 during the nesting period (incubation through fledging) when data were pooled across all years. Models with linear and quadratic trends of nest initiation date combined with SST and elevation received strong support in the incubation and nesting periods. Nests initiated in peak nesting season, when SSTs were lower, had higher DSR estimates than nests initiated early or late in the season. Compared to studies of the same species from Saba and the Gulf of California, survival probability on St. Eustatius was lower during the incubation stage but higher during the chick-rearing period. Similar to populations in the Gulf of California, tropicbird reproduction differed and laying date varied among years, and survival was influenced by SST. Our results are consistent with a study on White-tailed Tropicbirds (Phaethon lepturus) in Bermuda which found that survival was affected by temporal factors rather than physical site characteristics. Our study contributes to a better understanding of the factors that influence Red-billed Tropicbird survival on a small Caribbean island.
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来源期刊
Waterbirds
Waterbirds 生物-鸟类学
CiteScore
1.30
自引率
0.00%
发文量
0
审稿时长
6-12 weeks
期刊介绍: Waterbirds is an international scientific journal of the Waterbird Society. The journal is published four times a year (March, June, September and December) and specializes in the biology, abundance, ecology, management and conservation of all waterbird species living in marine, estuarine and freshwater habitats. Waterbirds welcomes submission of scientific articles and notes containing the results of original studies worldwide, unsolicited critical commentary and reviews of appropriate topics.
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