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Figs are more than fallback foods: the relationship between Ficus and Cebus in a tropical dry forest.

机译:无花果不只是后备食物:在热带干燥森林中,榕树(Ficus)和冷杉(Cebus)之间的关系。

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In many studies on primate feeding ecology, figs (Ficus spp.) are characterized as fallback foods, utilized only when preferred sources of food are unavailable. However, for white-faced capuchin monkeys (Cebus capucinus) living in northwestern Costa Rica, figs are a consistently important resource and may increase groupwide energy intake. We investigated whether visits to figs affect ranging and behavioural patterns of capuchins. Although daily range length and average travel speed do not differ on days when fig trees are visited, capuchins spend more time in directed travel and more time stationary on "fig days". Capuchins also increase time spent foraging for fruit and decrease time spent foraging for invertebrates on days when figs trees are visited. Capuchins experience higher energy intake and lower energy output on "fig" days. Thus, the patterns of foraging for figs support an energy-maximization strategy and constitute an important nutritional resource for capuchins.Digital Object Identifier http://dx.doi.org/10.1155/2011/967274
机译:在许多有关灵长类动物摄食生态学的研究中,无花果( Ficus spp。)被描述为后备食品,仅在无法获得首选食物来源时才使用。但是,对于生活在哥斯达黎加西北部的白脸卷尾猴( Cebus capucinus ),无花果是一贯重要的资源,可能会增加整个群体的能量摄入。我们调查了访问无花果是否会影响卷尾猴的活动范围和行为模式。尽管在参观无花果树的日子里,每日的行距长度和平均行进速度没有差异,但卷尾猴在“无花果日”花费更多的时间进行定向旅行,并花费更多的时间静止。在参观无花果树的日子,卷尾猴还增加了觅食水果的时间,并减少了为无脊椎动物觅食的时间。卷尾猴在“无花果”日经历更高的能量摄入和更低的能量输出。因此,无花果的觅食模式支持能量最大化策略,并构成了卷尾猴的重要营养资源。数字对象标识符http://dx.doi.org/10.1155/2011/967274

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