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A Regional Approach Shows Differences Among Invasive Ants Solenopsis geminata and Wasmannia auropunctata (Hymenoptera: Formicidae) Within Its Native Range of Distribution
Journal of Insect Science ( IF 2.2 ) Pub Date : 2021-05-20 , DOI: 10.1093/jisesa/ieab039
Patricia Rojas 1 , Carlos Fragoso 1
Affiliation  

Worldwide, two of the most harmful invasive ants typical of disturbed sites are Solenopsis geminata (Fabricius) and Wasmannia auropunctata (Roger). Both are natives of the Neotropics and are widely distributed all over the tropics. Within its original geographic range, there are few data on its abundance and potential damage to natural ecosystems. In this study, we recorded their abundance and relationships to diversity and richness of soil ant communities in two localities with different amount of forested area (López Mateos, LM 77% and Venustiano Carranza, VC 27%), at Los Tuxtlas reserve. In each locality, four land use systems (LUS) were sampled: tropical rain forests, agroforestry plantations, annual crops, and pastures. Data were gathered from 360 ant samples obtained from litter squares, pitfall traps, and soil monoliths in 40 sampling points (20 per locality, and five per LUS). Solenopsis geminata was more abundant in LM than in VC; the opposite trend was observed for W. auropunctata. In LM, S. geminata was more abundant in crops than in the other LUS, whereas W. auropunctata tended to have higher abundances in less managed sites of both localities. Abundance and species richness of ant communities were higher in LM than in VC. At regional and local levels, we found negative relationships between the abundance of S. geminata and species richness; the inverse pattern was found for W. auropunctata. We conclude that at Los Tuxtlas, W. auropunctata can be considered as a typical dominant native species, whereas S. geminata is the common exotic invasive ant.

中文翻译:

区域方法显示入侵蚂蚁 Solenopsis geminata 和 Wasmannia auropunctata(膜翅目:蚁科)在其原生分布范围内的差异

在世界范围内,两种最有害的入侵蚂蚁是典型的受干扰地点,即 Solenopsis geminata (Fabricius) 和 Wasmannia auropunctata (Roger)。两者都是新热带地区的原住民,广泛分布于热带地区。在其原始地理范围内,关于其丰富度和对自然生态系统的潜在损害的数据很少。在这项研究中,我们在 Los Tuxtlas 保护区(López Mateos,LM 77% 和 Venustiano Carranza,VC 27%)记录了它们的丰度以及与土壤蚂蚁群落多样性和丰富度的关系。在每个地方,抽样了四个土地利用系统(LUS):热带雨林、农林业种植园、一年生作物和牧场。数据来自 360 个蚂蚁样本,这些样本来自垃圾广场、陷阱陷阱、和 40 个采样点(每个地点 20 个,每个 LUS 五个)中的土壤整体。LM 中的 Solenopsis geminata 比 VC 中更丰富;W. auropunctata 观察到相反的趋势。在 LM,S. geminata 在作物中比在其他 LUS 中更丰富,而 W. auropunctata 在两个地方管理较少的地点往往具有更高的丰度。LM中蚂蚁群落的丰度和物种丰富度高于VC。在区域和地方层面,我们发现 S. geminata 的丰度与物种丰富度之间存在负相关关系;W. auropunctata 发现了相反的模式。我们得出结论,在 Los Tuxtlas,W. auropunctata 可以被认为是典型的优势本地物种,而 S. geminata 是常见的外来入侵蚂蚁。W. auropunctata 观察到相反的趋势。在 LM,S. geminata 在作物中比在其他 LUS 中更丰富,而 W. auropunctata 在两个地方管理较少的地点往往具有更高的丰度。LM中蚂蚁群落的丰度和物种丰富度高于VC。在区域和地方层面,我们发现 S. geminata 的丰度与物种丰富度之间存在负相关关系;W. auropunctata 发现了相反的模式。我们得出结论,在 Los Tuxtlas,W. auropunctata 可以被认为是典型的优势本地物种,而 S. geminata 是常见的外来入侵蚂蚁。W. auropunctata 观察到相反的趋势。在 LM,S. geminata 在作物中比在其他 LUS 中更丰富,而 W. auropunctata 在两个地方管理较少的地点往往具有更高的丰度。LM中蚂蚁群落的丰度和物种丰富度高于VC。在区域和地方层面,我们发现 S. geminata 的丰度与物种丰富度之间存在负相关关系;W. auropunctata 发现了相反的模式。我们得出结论,在 Los Tuxtlas,W. auropunctata 可以被认为是典型的优势本地物种,而 S. geminata 是常见的外来入侵蚂蚁。LM中蚂蚁群落的丰度和物种丰富度高于VC。在区域和地方层面,我们发现 S. geminata 的丰度与物种丰富度之间存在负相关关系;W. auropunctata 发现了相反的模式。我们得出结论,在 Los Tuxtlas,W. auropunctata 可以被认为是典型的优势本地物种,而 S. geminata 是常见的外来入侵蚂蚁。LM中蚂蚁群落的丰度和物种丰富度高于VC。在区域和地方层面,我们发现 S. geminata 的丰度与物种丰富度之间存在负相关关系;W. auropunctata 发现了相反的模式。我们得出结论,在 Los Tuxtlas,W. auropunctata 可以被认为是典型的优势本地物种,而 S. geminata 是常见的外来入侵蚂蚁。
更新日期:2021-05-20
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