![]() tiaretta WARNCKE, 1974 (southern Spain, Morocco, Algeria). lineolata WARNCKE, 1968 (Tenerife), and the hypothetical ancestor A. Included in the analysis were the following two species that are closely related to the A. wollastoni COCKERELL, 1922, from the Canary Islands has been evaluated. dourada KRATOCHWIL & SCHEUCHL, 2013 (Porto Santo), and three subspecies of A. wollastoni WARNCKE, 1968 (Madeira Island), A. Additionally, restoring native laurel forest vegetation will support the recovery of both species.Ī revision of taxa of the Andrena wollastoni group (Madeira Archipelago, Canary Islands) was carried out. Reducing wildfire frequency and size will be crucial to conserve the two species. ![]() The effects of two large wildfires on Gran Canaria were more detrimental than the effects of smaller wildfires on Madeira, which were recolonised after 10 years. Populations of two endemic, silvicolous bush‐crickets from the Macaronesian Islands declined as a consequence of recent wildfires. Additionally, restoring native laurel forest vegetation will support the recovery of both species. Reducing wildfire frequency and size will be crucial to conserving the two species. However, when analysing the effects of fire history and size, we found that one of the species was found on older burnt sites, suggesting a capacity to recolonise smaller burnt areas from adjacent non‐burnt areas. Our results show that wildfires had strong negative effects on populations of both species. Using bioacoustics monitoring, we studied the consequences of recent wildfires on two endemic silvicolous Macaronesian Bush‐Cricket species, which are listed as threatened on the IUCN Red List of Threatened Species. Macaronesia is a global biodiversity hotspot with wildfires occurring annually, but the consequences of these wildfires on endemic insects are poorly understood. ![]() These wildfires may have negative effects on insect populations. Wildfires increase globally in frequency and extent as a consequence of climate change. portosanctana (one female as lectotype and one female as paralectotype). maderensis (one female as lectotype, three females and two males as paralectotypes), and A. Lectotypes and paralectotypes were described for the following species: Andrena cyanomicans (four females and three males as paralectoptypes), A. 2014) were analysed for the first time using uni- and multivariate morphometric methods. ![]() A morphometric analysis was carried out (calculation of correlation coefficient, principal component analysis). The morphometric differences were tested statistically. Thirty-three morpho- logical (non-meristic) characteristics (integument colour, pubescence, structural features) and 23 morphometric parameters of females and males were analysed. This study revises the taxonomical status of A. portosanctana COCKERELL, 1922 (Porto Santo) as species of their own. maderensis COCKERELL, 1922 (Madeira Island) and A. Later, this author changed the taxonomical status of A. ![]() WARNCKE (1968) described Andrena maderensis fratella and A. Colonisation likely led from the Canary Islands to the Madeira Archipelago and not from the mainland directly to the latter. Morphologically and morphometrically defined subspecies were not distinguishable with COI DNA sequences. wollastoni (Madeira Island) are sister species. Andrena lineolata (Tene-rife) or its putative ancestor ( A. The data do not support a simple stepping-stone model (eastern-western colonisation from the mainland, with splitting into new taxa), but suggest Andrena gomerensis (extant on La Gomera and La Palma) or its ancestor as the basal lineage from which all other taxa evolved. Mitochondrial COI sequences support the monophyly of the four species of the Canary Islands and the two species of the Madeira Archipelago and suggest a relatively young age for all taxa. Here we investigated colonisation and radiation processes in the Madeira Archipelago and the Canary Islands of the Andrena wollastoni group of bees (subgenus Micrandrena ), which comprises six endemic species and five endemic subspecies on the islands. Oceanic islands have long been considered engines of differentiation and speciation for terrestrial organisms. ![]()
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