Allometry of litter mass in bats: Maternal size, wing morphology, and phylogeny
Allometry of litter mass in bats: Maternal size, wing morphology, and phylogeny
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DOI：
10.2307/1382823
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发表时间：
1996-05-01
影响因子：
1.7
通讯作者：
Kunz, TH
中科院分区：
文献类型：
--
作者：
Hayssen, V;Kunz, TH
我们研究蝙蝠的垃圾质量如何随翼载而变化，翼载是飞行的一个重要的空气动力学方面。从几何比例来看，凋落物质量应该以三的指数与机翼载荷成比例.相反，对携带额外质量的空气动力学后果的分析表明，明显小于3的指数将是选择性有利的。我们的研究结果表明，巨翼和Microchiroptera不同的凋落物质量和翅膀负载之间的关系。凋落物质量在megachiropterans规模预期的几何比例，而凋落物质量在microchiropterans，作为一个群体，并为个别家庭，规模如预期的，如果飞行的空气动力学后果影响凋落物质量超过大小的限制。因此，选择压力的繁殖性状似乎不同的两个亚目的蝙蝠。
We examine how litter mass in bats varies with respect to wing loading, an important aerodynamic aspect of flight. From geometric proportions, litter mass should scale to wing loading by an exponent of three. Conversely, analysis of aerodynamic consequences of carrying extra mass suggests that an exponent significantly less than three would be selectively advantageous. Our results show that Megachiroptera and Microchiroptera differ in the relationship between litter mass and wing loading. Litter mass in megachiropterans scales as expected by geometric proportions, whereas litter mass in microchiropterans, as a group, and for individual families, scales as expected if aerodynamic consequences of flight influence litter mass more than size constraints. Thus, selection pressures on reproductive traits appear to differ between the two suborders of bats.