Santos A A, Ragusa-Netto J
Universidade Federal de Mato Grosso do Sul ? UFMS, Três Lagoas, MS, Brazil.
Departamento de Ciências Naturais, Câmpus Três Lagoas, Universidade Federal de Mato Grosso do Sul ? UFMS, Três Lagoas, MS, Brazil.
Braz J Biol. 2014 May;74(2):429-37. doi: 10.1590/1519-6984.27312.
In this study, we described the food plants available to Blue-and-Yellow Macaws (Ara ararauna), its feeding habits and the relationship between these parameters with feeding niche breadth. We established four transects, each one 12 km long, to sample fruiting plants and the feeding habits of this macaw (monthly 40 h, of observations), at the urban areas of Três Lagoas (Mato Grosso do Sul, Brazil). During all studied months, macaws foraged for palm fruits, mainly Syagrus oleracea and Acrocomia aculeata fruit pulp, both available all year, as well as Caryocar brasiliense and Anacardium occidentale seeds, in the wet season. The year-round feeding activity of macaws suggests Três Lagoas city as an adequate feeding area. The permanent availability of plant food resources, potentially, resulted from the diverse fruiting patterns of exotic and, mainly, native plant species, which provided a variety of suitable fruit patches.
在本研究中，我们描述了蓝黄金刚鹦鹉（Ara ararauna）可获取的食用植物、其取食习性以及这些参数与取食生态位宽度之间的关系。我们在巴西南马托格罗索州特雷斯拉戈阿斯的市区设立了四条样带，每条样带长12公里，用于对结果植物和这种金刚鹦鹉的取食习性进行采样（每月观察40小时）。在所有研究月份中，金刚鹦鹉都以棕榈果为食，主要是全年都有供应的油棕榈（Syagrus oleracea）和刺葵（Acrocomia aculeata）的果肉，以及在雨季时的巴西坚果（Caryocar brasiliense）和腰果（Anacardium occidentale）种子。金刚鹦鹉全年的取食活动表明特雷斯拉戈阿斯市是一个适宜的取食区域。植物食物资源的常年可获取性可能源于外来植物物种，主要是本地植物物种多样的结果模式，这些植物提供了各种合适的果实斑块。
