Exploring the diversity of the Malagasy Ponera (Hymenoptera: Formicidae) fauna via integrative taxonomy
Exploring the diversity of the Malagasy Ponera (Hymenoptera: Formicidae) fauna via integrative taxonomy
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DOI：
10.1007/s13127-023-00610-1
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发表时间：
2023-06-28
影响因子：
1.6
通讯作者：
Fisher，Brian L.
中科院分区：
文献类型：
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作者：
Csosz，Sandor;Loss，Ana C.;Fisher，Brian L.
全世界有60多个现存物种。这些微小的内生捕食蚂蚁主要分布在Indomalaya和澳大拉西亚地区，还有一些其他的泛北极物种。在这里，我们探索和描述的MalagasyPonerafauna的多样性，通过综合分类方法。我们得到了我们的形态物种的假设，从10个连续的形态特征的多变量分析。通过验证性线性判别分析（LDA），交叉验证（LOOCV），和线粒体COI基因片段的分析，物种边界和可靠性的形态集群进行了测试。根据综合应用分析结果，推测马达加斯加地区有三种，即Ponera petilaWilson、P. swezeyiWheeler和P. adumbransCselsz & Fisher sp. n.Ponera petilaandP. swezeyi属于印度-澳大利亚Ponera tenuisgroup; n.，在形态上与巴布亚新几内亚相似。ClavicornisEmery（1900）.线性判别分析对模式标本进行了分类。babletiPerrault，沿着的是aP。后验概率p = 1的小聚类。因此，我们提出了P的新的初级同义词。巴伯莱蒂湾P. petila。马达加斯加现存的生物多样性主要是由于非洲大陆通过漂流穿越莫桑比克海峡的殖民活动。然而，由于非洲热带大陆没有已知的本地Ponerafauna种，而最近的同源物几乎完全分布在印度-澳大利亚，因此暗示了MalagasyPonerafauna的印度-澳大利亚起源的可能性。
The genusPoneraincludes over 60 extant species worldwide. These tiny, endogeic predator ants are predominantly distributed in the Indomalaya and Australasia regions, with a few additional Holarctic species. Herein, we explore and describe the diversity of the MalagasyPonerafauna through an integrative taxonomic approach. We obtained our morphological species hypotheses from multivariate analyses of ten continuous morphometric characters. Species boundaries and reliability of morphological clusters were tested via confirmatory Linear Discriminant Analysis (LDA), cross-validation (LOOCV), and analyses of a mitochondrial COI gene fragment. According to the combined application of the analyses, altogether, three species are inferred in the Malagasy region,Ponera petilaWilson ,P. swezeyiWheeler , andP. adumbransCsősz & Fisher sp. n.Ponera petilaandP. swezeyibelong to the Indo-AustralianPonera tenuisgroup; the third species,P. adumbranssp. n., is morphologically similar to the Papua New GuineanP. clavicornisEmery (1900). Furthermore, Linear Discriminant Analysis classified the type specimens ofP. babletiPerrault , along with aP. petilacluster with posteriorp= 1. Therefore, we propose the new junior synonymy ofP. babletiwithP. petila. Madagascar’s extant biodiversity is predominantly explained by colonization events from the African continent across the Mozambique channel via rafting. However, since no nativePoneraspecies are known from the Afrotropical continent, and the closest congeners have an almost exclusively Indo-Australian distribution, the likelihood of an Indo-Australian origin of the MalagasyPonerafauna is implied.