Body mass determines the role of mammal species in a frugivore-large fruit interaction network in a Neotropical savanna

IF 1 4区环境科学与生态学 Q4 ECOLOGY

Journal of Tropical Ecology Pub Date : 2023-01-16 DOI:10.1017/S0266467422000505

Larissa Gabriela Araujo Goebel, Breno Dias Vitorino, Angélica Vilas Boas Frota, M. Santos-Filho

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引用次数: 1

Abstract

Abstract Frugivorous mammals play an important role in maintaining biodiversity and are considered one of the main dispersers of large seeds. In this study, we describe the structure of the interaction network between non-flying mammals and seven plant species with large fruits in a megadiverse savanna-forest mosaic in the Brazilian Cerrado. We also evaluated the individual contribution of each species to the organization of the interaction network and tested whether body mass determined the mammals’ role in the network. To record frugivory events of mammals with arboreal and terrestrial habits, camera traps were installed at ground and canopy levels. We identified 18 mammal species interacting with seven plant species in 515 frugivory events. Our observations highlight an interaction network with a modular and non-nested topology and the important role of large mammals in the network structure, which reflects the importance of the group in potential seed dispersal. The extinction of large frugivorous mammals can cause several damages to ecosystem services in the Brazilian Cerrado through changes in network structure, especially threatening the survival of plant species with large fruits.

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体重决定了哺乳动物物种在新热带稀树草原食草动物-大型水果相互作用网络中的作用

果食性哺乳动物在维持生物多样性方面发挥着重要作用，被认为是大型种子的主要传播者之一。在这项研究中，我们描述了在巴西塞拉多的一个巨型多样化的稀树草原-森林马赛克中，非飞行哺乳动物与七种大果实植物之间相互作用网络的结构。我们还评估了每个物种对相互作用网络组织的个体贡献，并测试了体重是否决定了哺乳动物在网络中的作用。为了记录具有树栖和陆栖习性的哺乳动物的食性事件，在地面和树冠层设置了相机陷阱。在515个果期事件中，共鉴定出18种哺乳动物与7种植物相互作用。我们的观察结果强调了一个具有模块化和非嵌套拓扑结构的相互作用网络，以及大型哺乳动物在网络结构中的重要作用，这反映了该群体在潜在种子传播中的重要性。大型食果哺乳动物的灭绝会通过网络结构的变化对巴西塞拉多地区的生态系统服务造成若干损害，特别是对大型果实植物物种的生存造成威胁。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Tropical Ecology 环境科学-生态学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

18-36 weeks

期刊介绍： Journal of Tropical Ecology aims to address topics of general relevance and significance to tropical ecology. This includes sub-disciplines of ecology, such as conservation biology, evolutionary ecology, marine ecology, microbial ecology, molecular ecology, quantitative ecology, etc. Studies in the field of tropical medicine, specifically where it involves ecological surroundings (e.g., zoonotic or vector-borne disease ecology), are also suitable. We also welcome methods papers, provided that the techniques are well-described and are of broad general utility. Please keep in mind that studies focused on specific geographic regions or on particular taxa will be better suited to more specialist journals. In order to help the editors make their decision, in your cover letter please address the specific hypothesis your study addresses, and how the results will interest the broad field of tropical ecology. While we will consider purely descriptive studies of outstanding general interest, the case for them should be made in the cover letter.