Gajdošová Magdalena, Sychra Oldřich, Kreisinger Jakub, Sedláček Ondřej, Nana Eric Djomo, Albrecht Tomáš, Munclinger Pavel
Department of Zoology Faculty of Science Charles University Prague Czech Republic.
Department of Ecology Faculty of Science Charles University Prague Czech Republic.
Ecol Evol. 2020 Jun 18;10(13):6512-6524. doi: 10.1002/ece3.6386. eCollection 2020 Jul.
Coevolutionary processes that drive the patterns of host-parasite associations can be deduced through congruence analysis of their phylogenies. Feather lice and their avian hosts have previously been used as typical model systems for congruence analysis; however, such analyses are strongly biased toward nonpasserine hosts in the temperate zone. Further, in the Afrotropical region especially, cospeciation studies of lice and birds are entirely missing. This work supplements knowledge of host-parasite associations in lice using cospeciation analysis of feather lice (genus and the complex) and their avian hosts in the tropical rainforests of Cameroon. Our analysis revealed a limited number of cospeciation events in both parasite groups. The parasite-host associations in both louse groups were predominantly shaped by host switching. Despite a general dissimilarity in phylogeny for the parasites and hosts, we found significant congruence in host-parasite distance matrices, mainly driven by associations between lice and passerine species of the Waxbill (Estrildidae) family, and lice and their Bulbul (Pycnonotidae) host species. As such, our study supports the importance of complex biotic interactions in tropical environments.
驱动宿主 - 寄生虫关联模式的协同进化过程可以通过对它们系统发育的一致性分析来推断。羽毛虱及其鸟类宿主此前一直被用作一致性分析的典型模型系统；然而，此类分析严重偏向温带地区的非雀形目宿主。此外，特别是在非洲热带地区，虱子和鸟类的共物种形成研究完全缺失。这项工作通过对喀麦隆热带雨林中的羽毛虱（属和复合体）及其鸟类宿主进行共物种形成分析，补充了虱子宿主 - 寄生虫关联的知识。我们的分析揭示了两个寄生虫群体中有限数量的共物种形成事件。两个虱类群体中的寄生虫 - 宿主关联主要由宿主转换塑造。尽管寄生虫和宿主在系统发育上总体存在差异，但我们在寄生虫 - 宿主距离矩阵中发现了显著的一致性，主要由虱与梅花雀（梅花雀科）家族的雀形目物种以及虱与其鹎（鹎科）宿主物种之间的关联驱动。因此，我们的研究支持了热带环境中复杂生物相互作用的重要性。
