哥伦比亚西南部两片安第斯高山森林中植物与食草鸟类互动网络的结构

IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
David Angulo-Ortiz , Jorge Becoche-Mosquera , Luis Germán Gómez-Bernal
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引用次数: 0

摘要

植物与动物之间的相互作用对生态系统的结构和功能至关重要,尤其是在哥伦比亚安第斯山脉等生物多样性丰富的地区。本研究重点关注哥伦比亚西南部两片安第斯高山森林中昼行鸟类与植物之间的觅食互动网络,旨在分析这些网络的结构,并确定影响其配置的因素。通过在普拉塞国家自然公园和托托罗的一个森林遗迹进行系统观测,记录了为期两年的互动情况。采用标准化取样方法,分别对普拉塞和托托罗的 454 次和 307 次觅食活动进行了量化。结果表明,这两个网络的整体连通性较低,但嵌套程度较高。主要物种如Miconia orcheotoma和Freziera canescens在互动中占主导地位,这表明除了果实丰度以外,果实结构、软中果皮或颜色等因素也可能吸引鸟类并影响网络结构。在网络水平上,稳健性表明网络可以承受物种的消失而不会崩溃,这表明尽管网络的连接性较低,但仍具有潜在的稳定性。总之,这项研究强调了通性植物物种在维持安第斯高山森林节食网络的凝聚力方面的重要性,它们提供了抵御环境或人为变化的稳定性。这些发现强调了同时保护鸟类物种和植物物种的必要性,以保护这些关键生态系统所提供的生态功能和生态系统服务。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structure of plant-frugivorous bird interaction networks in two high Andean forests of southwestern Colombia
Plant-animal interactions are essential for the structure and functioning of ecosystems, especially in regions of high biodiversity such as the colombian Andes. This study focuses on the networks of frugivorous interactions between diurnal birds and plants in two high-Andean forests in southwestern Colombia, aiming to analyze the structure of these networks and determine the factors influencing their configuration. Using systematic observations in the Puracé National Natural Park and a forest remnant in Totoró, interactions were recorded over a two-year period. Standardized sampling methods were employed to quantify 454 and 307 feeding events in Puracé and Totoró, respectively. The results indicated a low overall connectivity in both networks, although a high degree of nestedness was observed. Key species like Miconia orcheotoma and Freziera canescens dominated the interactions, suggesting that factors beyond fruit abundance, such as fruit structure, a soft mesocarp, or color, may attract birds and influence network structure. At the network level, robustness showed that the networks could withstand species loss without collapsing, suggesting underlying stability despite low connectivity. In conclusion, this study highlights the importance of generalist plant species in maintaining the cohesion of frugivorous networks in high Andean forests, providing stability against environmental or anthropogenic changes. These findings underline the need to conserve both bird species and plant species to preserve the ecological functionality and ecosystem services provided by these critical ecosystems.
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来源期刊
CiteScore
7.20
自引率
4.30%
发文量
567
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