Giant Babaxes mix brood reduction and brood survival strategies

Giant Babaxes mix brood reduction and brood survival strategies
复制标题

巨型巴巴克斯结合了减少幼崽和幼崽生存策略

DOI:
10.1007/s10336-011-0779-x
复制
发表时间:
2012-07
影响因子:
1.3
通讯作者:
Liu, Nai-Fa
Liu, Nai-Fa
中科院分区:
生物学3区
文献类型:
--
作者:
Du, Bo;Zhao, Qing-Shan;Liu, Chang-Jing;Guan, Meng-Meng;Liu, Nai-Fa

文献摘要

参考文献

被引文献

相似文献

进化鸟类可能会改变其在产卵阶段与雏鸟阶段的相对生殖投资,作为一种适应策略,以应对阶段之间可变或不可预测的食物供应。本文研究了青藏高原高海拔环境下的巨型巴巴克斯(Babax waddelli)的亲本投资策略。在模态窝卵数为3时,卵的大小随产蛋顺序而下降,导致整个雏鸟期内的窝卵大小等级。然而,provisioners抵消了最初的障碍较小,最后孵化的年轻人通过两种手段:(1)防止兄弟姐妹竞争一个可预测的喂养网站;(2)优先喂养最小的雏鸟。因此,雏鸟生长曲线差异近显着孵化顺序。我们认为,在卵和雏鸟阶段的这种对比投资可能是一种策略,以最大限度地提高繁殖成功率在一个苛刻的和不可预测的,高海拔环境。最后产下的蛋的障碍提供了机会,更有效的育雏减少在不利的条件下,但可以抵消在有利条件下的优先喂养。
Altricial birds may vary their relative reproductive investment at the egg versus nestling stages as an adaptive strategy to deal with variable or unpredictable food availability between stages. We investigated the parental investment strategies of Giant Babax (Babax waddelli) breeding in a harsh, high-altitude environment on the Tibetan plateau. In the modal clutch size of three, egg size declined strongly with laying order, resulting in an intra-brood size hierarchy throughout the nestling period. However, provisioners counteracted the initial handicapping of smaller, last-hatching young by two means: (1) preventing siblings from competing over a predictable feeding site; and (2) preferentially feeding the smallest nestling. Consequently, nestling growth curves differed near significantly by hatching order. We suggest this contrasting investment during the egg and nestling stages may be a strategy to maximize reproductive success in a harsh and unpredictable, high-altitude environment. The handicapping of last-laid eggs provides the opportunity for more efficient brood reduction in unfavorable conditions, but can be counteracted by preferential feeding under favorable conditions.
DOI: 10.1017/s0030605304000791
发表时间: 2004-10
期刊: Oryx
影响因子: 2.7
作者:
Xin Lu
通讯作者: Xin Lu
DOI: 10.3161/068.042.0213
发表时间: 2007-12
期刊: --
影响因子: --
作者:
Xin Lu;Xuhui Ma;Liqing Fan
通讯作者: Xin Lu;Xuhui Ma;Liqing Fan
DOI: 10.1111/j.0030-1299.2008.16404.x
发表时间: 2008-05
期刊: Oikos
影响因子: 3.4
作者:
Carlos Rodríguez;K. Johst;J. Bustamante
通讯作者: Carlos Rodríguez;K. Johst;J. Bustamante
DOI: 10.1007/bf00171661
发表时间: 1993-08
影响因子: 2.3
作者:
S. B. McRae;P. J. Weatherhead;R. Montgomerie
通讯作者: S. B. McRae;P. J. Weatherhead;R. Montgomerie
DOI: 10.1111/j.1557-9263.2010.00274.x
发表时间: 2010-06
影响因子: 0.9
作者:
Xin Lu;T. Yu;W. Liang;Canchao Yang
通讯作者: Xin Lu;T. Yu;W. Liang;Canchao Yang