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Plant richness drives ant diversity in Eucalyptus-dominated landscape on Brazilian savanna
Austral Ecology ( IF 1.6 ) Pub Date : 2021-05-31 , DOI: 10.1111/aec.13060 Jonas José Mendes Aguiar 1 , Diego V. Anjos 2 , Raquel L. Carvalho 2 , Wanessa de Almeida 3 , Ana Carolina Costa Santos 4 , Jean Carlos Santos 3
Austral Ecology ( IF 1.6 ) Pub Date : 2021-05-31 , DOI: 10.1111/aec.13060 Jonas José Mendes Aguiar 1 , Diego V. Anjos 2 , Raquel L. Carvalho 2 , Wanessa de Almeida 3 , Ana Carolina Costa Santos 4 , Jean Carlos Santos 3
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The conversion of natural areas into agricultural systems and silviculture is the greatest threat to biodiversity in tropical ecosystems such as the Brazilian savanna (Cerrado). This landscape transformation could lead to the loss of native species, including ants that cannot tolerate the new environment dominated by exotic plant species, such as Eucalyptus spp. The present study aims to investigate ant diversity and their functional groups to verify which vegetation and landscape variables explain their changes in a neglected formation of Cerrado (Campos Murundus) surrounded by Eucalyptus forests planted. We sampled ants in 29 sites, which presented a gradient of richness, average plant heights, and distances from Eucalyptus plantations and permanent protected areas (PPAs). We found 83 ant species from six functional guilds (arboreal, Camponotini, epigeic omnivorous, higher Attini, lower Attini and specialist predators). Plant richness best explained the diversity of ants. Higher distance from Eucalyptus plantations also positively explained the frequency of functional groups, whereas higher distance from the PPAs negatively explained the frequency of Camponotini species. Our study showed that vegetation (plant richness) and landscape variables help to understand ant diversity in a Eucalyptus-dominated landscape. This reaffirms the importance of preserving the vegetation and their associate fauna in Campos Murundus by increasing the extent of conservation of this threatened biome.
中文翻译：
巴西稀树草原上以桉树为主的景观中的植物丰富度推动了蚂蚁的多样性
自然区域转变为农业系统和造林是对热带生态系统生物多样性的最大威胁，例如巴西热带稀树草原（塞拉多）。这种景观转变可能导致本地物种的丧失，包括不能忍受由外来植物物种（如桉树属）主导的新环境的蚂蚁。本研究旨在调查蚂蚁多样性及其功能组，以验证哪些植被和景观变量解释了它们在被种植的桉树林包围的被忽视的 Cerrado (Campos Murundus) 地层中的变化。我们在 29 个地点对蚂蚁进行了采样，结果呈现出丰富度、平均株高和与桉树的距离的梯度种植园和永久保护区 (PPA)。我们从六个功能性公会（树栖、坎波诺蒂尼、表观杂食性、高等 Attini、低等 Attini 和专业捕食者）中发现了 83 种蚂蚁。植物丰富度最好地解释了蚂蚁的多样性。距桉树种植园较远的距离也正向解释了官能团的频率，而距 PPA 较远的距离则负向解释了 Camponotini 物种的频率。我们的研究表明，植被（植物丰富度）和景观变量有助于了解以桉树为主的景观中的蚂蚁多样性。这重申了通过增加对这一受威胁生物群落的保护程度来保护 Campos Murundus 植被及其相关动物群的重要性。
更新日期：2021-05-31
中文翻译：
巴西稀树草原上以桉树为主的景观中的植物丰富度推动了蚂蚁的多样性
自然区域转变为农业系统和造林是对热带生态系统生物多样性的最大威胁，例如巴西热带稀树草原（塞拉多）。这种景观转变可能导致本地物种的丧失，包括不能忍受由外来植物物种（如桉树属）主导的新环境的蚂蚁。本研究旨在调查蚂蚁多样性及其功能组，以验证哪些植被和景观变量解释了它们在被种植的桉树林包围的被忽视的 Cerrado (Campos Murundus) 地层中的变化。我们在 29 个地点对蚂蚁进行了采样，结果呈现出丰富度、平均株高和与桉树的距离的梯度种植园和永久保护区 (PPA)。我们从六个功能性公会（树栖、坎波诺蒂尼、表观杂食性、高等 Attini、低等 Attini 和专业捕食者）中发现了 83 种蚂蚁。植物丰富度最好地解释了蚂蚁的多样性。距桉树种植园较远的距离也正向解释了官能团的频率，而距 PPA 较远的距离则负向解释了 Camponotini 物种的频率。我们的研究表明，植被（植物丰富度）和景观变量有助于了解以桉树为主的景观中的蚂蚁多样性。这重申了通过增加对这一受威胁生物群落的保护程度来保护 Campos Murundus 植被及其相关动物群的重要性。
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