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Fruiting phenology and consumption of zoochoric fruits by wild vertebrates in a seasonally dry tropical forest in the Brazilian Caatinga
Acta Oecologica ( IF 1.8 ) Pub Date : 2020-04-24 , DOI: 10.1016/j.actao.2020.103553
Érica Emanuela de Medeiros e Silva , Virgínia Helen Figueiredo Paixão , Jânio Lopes Torquato , Diana Gonçalves Lunardi , Vitor de Oliveira Lunardi

This study aimed to describe and evaluate the fruit phenology of zoochoric plants and the use of this resource by wild vertebrates in a seasonally dry tropical forest in the Furna Feia National Park, an area of Brazilian Caatinga. Specifically, we described the seasonal variation in fruiting of zoochoric species and evaluated the influence of rainfall intensity on the seasonal variation of fruiting, along with the relative importance of each fruit producing species in the diet of medium- and large-sized vertebrates by analysis of fecal samples. Monthly expeditions to the study area occurred between January 2013 and June 2018, during which we monitored the phenology of 643 plants, belonging to 11 species, and collected vertebrates fecal samples. Sideroxylon obtusifolium, Cereus jamacaru, Ziziphus joazeiro, Commiphora leptophloeos and Bromelia laciniosa fruited during the rainy season, while Myracrodruon urundeuva, Licania rigida, Cissus sp. and Maytenus rigida fruited during the dry season. Phoradendron quadrangulare and Cynophalla flexuosa presenting lower seasonality in the fruiting throughout the year. The rainfall intensity influenced the fruiting of more than 50% of the zoochoric plant species, corroborating the prediction of the existence of a relationship between rainfall intensity and fruiting for Caatinga zoochoric plants. Sixteen plant species were identified in 294 fecal samples, suggesting medium- and large-sized vertebrates act potential seed dispersers of 12 plant native species. Future conservation strategies for Caatinga forests should prioritize the protection of multiple plant species to ensure fruit availability throughout the year.



中文翻译:

巴西卡廷加州季节性干燥热带森林中野生脊椎动物的果实物候学和食用兽味果实的消费

这项研究旨在描述和评估食草动物的果实物候以及野生脊椎动物在巴西卡廷加州富尔纳·菲亚国家公园的季节性干燥热带森林中对野生动植物的利用。具体来说,我们描述了食管动物种类结实的季节变化,并通过分析以下因素,评估了降雨强度对水果结实季节变化的影响,以及每种水果产种在中型和大型脊椎动物饮食中的相对重要性。粪便样本。在2013年1月至2018年6月之间每月进行一次对研究区域的考察,在此期间,我们监测了11种植物643株的物候,并收集了脊椎动物的粪便样本。Sideroxylon obtusifolium塞斯jamacaruZipziphus joazeiroCommiphora leptophloeosBromelia laciniosa在雨季都结了果实,而Myracrodruon urundeuvaLicania僵硬Cissus sp。与美登杜松旱季结实。四角形杜鹃屈指藻全年结果的季节性较低。降雨强度影响了超过50%的动物食性植物的结实,从而证实了有关Caatinga动物食味植物的降雨强度与结果之间存在联系的预测。在294份粪便样品中鉴定出16种植物物种,这表明中型和大型脊椎动物充当了12种植物本地物种的潜在种子传播者。凯廷加森林的未来保护策略应优先保护多种植物,以确保全年可获得水果。

更新日期:2020-04-24
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