Habitat quality as a predictor of spatial variation in blue tit reproductive performance: a multi-plot analysis in a heterogeneous landscape
Habitat quality as a predictor of spatial variation in blue tit reproductive performance: a multi-plot analysis in a heterogeneous landscape
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栖息地质量作为蓝山雀繁殖性能空间变化的预测因子：异质景观中的多区分析
DOI：
10.1007/s00442-004-1681-5
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发表时间：
2004
期刊：
影响因子：
2.7
通讯作者：
Donald W. Thomas
中科院分区：
文献类型：
--
作者：
M. Lambrechts;S. Caro;A. Charmantier;N. Gross;M. Galan;P. Perret;M. Cartan;P. Dias;J. Blondel;Donald W. Thomas
脊椎动物的研究很少调查栖息地丰富度的空间变化对短期（繁殖）和长期（后代招募）繁殖性能的影响，同时使用多补丁，多栖息地类型和多年的方法在景观水平。在这里，我们提出了这样的方法的影响，两个橡树（栎冬青，Q。humilis）物种对科西嘉蓝山雀（Parus caeruleus ogliastrae）繁殖性能的影响。我们发现，蓝山雀繁殖丰富的阔叶落叶补丁一贯产卵早在本赛季，并产生更大的离合器和更高质量的雏鸟，比那些在贫穷的万年青补丁。此外，父母，特别是男性，在更好的身体状况在阔叶落叶比在万年青补丁。令人惊讶的是，对繁殖的长期影响的估计，如当地出生的后代的招募率，在两种栖息地类型之间没有差异。我们的研究结果表明，短期育种性能和表型质量的小鸡和父母不一定提供可靠的信息，在规模大于当地的研究地块的贡献给后代。两种橡树栖息地类型之间的繁殖性能的差异不能归因于密度依赖效应，巢捕食水平的差异，或年龄结构的差异的鸟类。我们认为，最适合繁殖的栖息地不一定是繁殖季节后生存的最佳选择。
Vertebrate studies have rarely investigated the influence of spatial variation in habitat richness on both short-term (breeding) and long-term (offspring recruitment) reproductive performance using simultaneously multi-patch, multi-habitat type and multi-year approaches at landscape level. Here we present results of such an approach using the influence of two oak tree (Quercus ilex, Q. humilis) species on reproductive performance in Corsican blue tits (Parus caeruleus ogliastrae) as a model system. We found that blue tits breeding in rich broad-leaved deciduous patches consistently laid eggs earlier in the season, and produced larger clutches and more fledglings of higher quality, than those breeding in poor evergreen patches. Also, parents, especially males, were in better physical condition in the broad-leaved deciduous than in the evergreen patches. Surprisingly, estimates of long-term effects of reproduction, such as recruitment rates of locally born offspring, did not differ between the two habitat types. Our results suggest that short-term breeding performance and phenotypic quality of both chicks and parents do not necessarily provide reliable information about contributions to following generations at a scale larger than that of the local study plot. Differences in reproductive performance between the two oak habitat types could not be attributed to density-dependent effects, differences in levels of nest predation, or differences in age structure of the birds. We suggest that habitats that are optimal for breeding are not necessarily optimal for survival after the breeding season.