首页> 外文期刊>The wilson journal of ornithology >MICROSCALE NEST-SITE SELECTION BY THE BURROWING OWL (ATHENE CUNICULARIA) IN THE PAMPAS OF ARGENTINA
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MICROSCALE NEST-SITE SELECTION BY THE BURROWING OWL (ATHENE CUNICULARIA) IN THE PAMPAS OF ARGENTINA

机译:阿根廷草原人工O ATH(雅典ATH)的微巢选择。

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摘要

Habitat modifications have led many bird species to occupy areas with different characteristics, including human-altered landscapes. In this study, we analyzed how land use influences the nest-site selection at the microscale level by Burrowing Owls (Athene cunicularia) breeding in vegetated sand duties, periurban areas, and agroecosystems in the Pampas of Argentina. We compared the characteristics of the nest site (percentage of open space) and the nest patch (distance to conspecific nests, tall vegetation and perches and number of perches) within and among the three land-cover types. In addition, we evaluated the breeding performance (nesting success and productivity) of owls nesting in these land-cover types. We found that nest microsite variables did not vary between owl-occupied and owl-unoccupied sites within nest patches, but they differed among land-cover types. Although nest patches differed in their availability of perches at each land-cover type, distance from the nest to the nearest perch did not vary between them. Distances to tall vegetation and to conspecific nests were highly variable and did not differ among land-cover types. Our results indicate that Burrowing Owls that inhabit the Pampas used a variety of land-cover types for nesting and showed little selectivity of nest sites and nest patches, thus reinforcing the idea that they are habitat generalists.
机译:栖息地的改变导致许多鸟类进入了具有不同特征的区域,包括人类改变的景观。在这项研究中,我们分析了在阿根廷潘帕斯的无尘沙丘,近郊地区和农业生态系统中,穴居猫头鹰(雅典娜穴兔)繁殖在微观尺度上对土地利用的影响。我们比较了三种土地覆被类型之间的巢址特征(开放空间的百分比)和巢穴斑块(与特定巢穴的距离,高大的植被和栖息处以及栖息处的数量)的特征。此外,我们评估了在这些土地覆盖类型中筑巢的猫头鹰的繁殖性能(巢式繁殖和生产力)。我们发现,巢穴内的猫头鹰栖息地和猫头鹰栖息地之间的巢穴位点变量没有变化,但在土地覆盖类型之间却有所不同。尽管每种土地覆被类型的巢穴栖息地可用性不同,但巢穴到最近的栖息地之间的距离在它们之间没有变化。到高大植被和同种巢的距离是高度可变的,并且在土地覆盖类型之间没有差异。我们的结果表明,居住在潘帕斯州的穴居猫头鹰使用多种土地覆盖类型进行筑巢,对巢穴和巢穴的选择性几乎没有,从而加强了他们是栖息地通才的观念。

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  • 来源
    《The wilson journal of ornithology》 |2017年第1期|62-70|共9页
  • 作者单位

    Laboratorio de Vertebrados, Instituto de Investiga-ciones Marinas y Costeras (IIMyC), CONICET - Uni-versidad Nacional de Mar del Plata, Funes 3350 - Mar del Plata (B7602AYJ), Argentina.;

    Laboratorio de Vertebrados, Instituto de Investiga-ciones Marinas y Costeras (IIMyC), CONICET - Uni-versidad Nacional de Mar del Plata, Funes 3350 - Mar del Plata (B7602AYJ), Argentina.;

    Laboratorio de Vertebrados, Instituto de Investiga-ciones Marinas y Costeras (IIMyC), CONICET - Uni-versidad Nacional de Mar del Plata, Funes 3350 - Mar del Plata (B7602AYJ), Argentina.;

    Laboratorio de Vertebrados, Instituto de Investiga-ciones Marinas y Costeras (IIMyC), CONICET - Uni-versidad Nacional de Mar del Plata, Funes 3350 - Mar del Plata (B7602AYJ), Argentina.;

    Laboratorio de Vertebrados, Instituto de Investiga-ciones Marinas y Costeras (IIMyC), CONICET - Uni-versidad Nacional de Mar del Plata, Funes 3350 - Mar del Plata (B7602AYJ), Argentina.;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Athene cunicularia; modified habitat; natural habitat; nesting success; productivity;

    机译:雅典娜改良的栖息地;自然栖息地;嵌套成功;生产率;

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