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首页> 外文期刊>The wilson journal of ornithology >NESTING ECOLOGY OF SWAINSON'S WARBLERS IN A SOUTH CAROLINA BOTTOMLAND FOREST
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NESTING ECOLOGY OF SWAINSON'S WARBLERS IN A SOUTH CAROLINA BOTTOMLAND FOREST

机译：南卡罗来纳州底特兰森林的斯威森SON的嵌套生态

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摘要

We studied the nesting ecology of Swainson's Warblers (Limnothylpis swainsonii) in Britton's Neck, South Carolina, USA and found 144 nests of which 78 were active. Nest initiations followed a bimodal distribution. Clutches averaged (± SE) 3.19 ± 0.20 eggs and 2.50 ± 0.33 fledglings per nest. The Mayfield nest success estimate for a 23-day cycle was 50%. Logistic exposure models indicate nest success to be most impacted by Brown-headed Cowbird (Molothrus ater) nest parasitism, nest age, and distance to the nearest swamp. Unparasitized nests that were younger in age and further from a swamp had the highest daily survival rates. Ten percent of nests were parasitized by Brown-headed Cowbirds with a 26% reduction in Swainson's Warbler hatching and an 89% reduction in fledgling production. Multiple brooding was observed in 21% of 2000 and 2001 Swainson's Warbler nests. Vines, such as greenbrier (Smilax spp.), were the most common substrate used for nesting, although two-thirds of the nests contained cane (Arundinaria tecta and A. gigantea) within a 5-m radius.
机译：我们在美国南卡罗来纳州的布里顿的脖子上研究了Swainson的莺（Limnothylpis swainsonii）的筑巢生态，发现了144个巢，其中78个处于活动状态。巢萌生遵循双峰分布。每个巢的平均离合器（±SE）为3.19±0.20个卵和2.50±0.33个幼雏。 23天周期的Mayfield巢式成功估计为50％。物流暴露模型表明，成巢的成功受褐头牛bird（Molothrus ater）的巢寄生，巢龄和距最近沼泽的距离影响最大。年龄较小且离沼泽较远的未寄生巢，其每日生存率最高。棕头牛Cow寄生了10％的巢，斯温森的莺莺孵化减少了26％，雏鸟生产减少了89％。在2000年和2001年的Swainson的莺鸟巢中，有21％观察到了多重育雏。藤蔓，例如greenbrier（Smilax spp。），是最常见的筑巢基质，尽管三分之二的巢穴都在5米半径范围内包含甘蔗（Arundinaria tecta和A. gigantea）。

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  • 来源
    《The wilson journal of ornithology》 |2012年第4期|728-736|共9页
  • 作者

    JENNIFER THOMPSON BISHOP; JOHN A. GERWIN; RICHARD A. LANCIA;

  • 作者单位

    Fisheries and Wildlife Program, Department of Zoology, North Carolina State University, Box 7617, Raleigh, NC 27695, USA Department of Biology, Union College, 807 Union Street, Schenectady, NY 12308, USA;

    North Carolina Museum of Natural Sciences, 11 West Jones Street, Raleigh, NC 27601, USA;

    Fisheries and Wildlife Program, Department of Forestry and Environmental Resources, North Carolina State University, Box 7646, Raleigh, NC 27695, USA;

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