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Article Reference Crustacea in phytothelmata: a global overview
Located in Library / RBINS Staff Publications
Article Reference The distribution of sexual reproduction of the geographic parthenogen Eucypris virens (Crustacea: Ostracoda) matches environmental gradients in a temporary lake
Located in Library / RBINS Staff Publications
Article Reference Hurdles in investigating UVB damage in the putative ancient asexual Darwinula stevensoni (Ostracoda, Crustacea)
Located in Library / RBINS Staff Publications
Article Reference Inter and intra island introgression in a wolf spider radiation from the Galapagos and its implications for parallel evolution
Parallel radiations within island systems are often assumed to follow a simple scenario in which single colonization events are followed by in situ adaptive divergence. However, subsequent gene exchange after the initial colonization and during the divergence process might have important evolutionary impacts on species radiations. Gene exchange among ecologically similar species from different islands may lead to introgression of adaptive genetic variation and influence the parallel divergence process. In this study, we estimate levels of gene exchange within a wolf spider radiation of the genus Hogna Simon, 1885, from the Galápagos, wherein habitat specialization into ‘high elevation’ and ‘coastal dry’ species apparently evolved repeatedly on two islands. By using a multilocus approach we show that low levels of inter-island and relatively higher levels of intra island introgression shaped genetic variation in this species complex. Using these estimates, we demonstrate by means of a coalescence simulation that under these inter- and intra-island migration rates parallel evolution most likely evolves by introgression of adaptive alleles among islands, rather than through independent mutations despite the close genetic relationship of species within islands. As species phylogenies within radiations are frequently used to infer the divergence pattern, even relatively low levels of interspecific gene flow should not be neglected when interpreting parallel trait evolution.
Located in Library / RBINS Staff Publications
Article Reference The mitochondrial cytochrome <i>c</i> oxidase I gene reveals phylogeographic structure in the African Goshawk <i>Accipiter tachiro</i> (Accipitridae)
Located in Library / RBINS Staff Publications
Article Reference Second Record and DNA Barcode of the Ant Tyrannomyrmex rex Fernández (Hymenoptera: Formicidae: Myrmicinae)
Located in Library / RBINS Staff Publications
Article Reference The Lahonry quarry at Lompret, Belgium: an extraordinary new site to study Upper Frasnian cephalopods during the onset of anoxia in the Dinant Basin
Located in Library / RBINS Staff Publications
Article Reference Upper Frasnian deposits at the Lahonry quarry (Lompret, Belgium): conodont biostratigraphy, microvertebrates and bentonites
Located in Library / RBINS Staff Publications
Article Reference The link between microbial diversity and nitrogen cycling in marine sediments is modulated by macrofaunal bioturbation
Located in Library / RBINS Staff Publications
Article Reference Two new species of <i>Leptanilloides</i> Mann, 1823 (Formicidae: Dorylinae) from the Andes of southern Ecuador
Two new species of Leptanilloides are described: L. copalinga Delsinne & Donoso sp. nov., and L. prometea Delsinne & Donoso sp. nov., based on workers collected in the leaf litter and soil of the Andes of southern Ecuador. Both species belong to the L. biconstricta species-group (formally diagnosed here). The metatibial gland, considered a synapomorphy for Dorylinae, is observed in L. prometea sp. nov. but seems absent in L. copalinga sp. nov. We provide a COI DNA barcode for both species and a revised key for the worker caste of all known species in the genus. We also describe a single male identified as a potential new Leptanilloides species on the basis of morphology. Furthermore, its mitochondrial COI gene sequence does not match any previously barcoded species. However, we refrain from giving it a specific name because of our lack of knowledge about the worker caste. So far, half of the 14 Leptanilloides species have been discovered above 1500 m in the mountain forests or páramos of the Ecuadorian Andes, confirming, if needed, the biological significance of these threatened habitats.
Located in Library / RBINS Staff Publications