H Johnsson
Well-known member
I do not know if it of interest for Mallorca birders but in report from Swedish Bird Lifes Taxonomic committee they have put Puffinus mauretanicus and P. yelkouan together - one species.
Report below with Google translation
Balearic lira and Mediterranean lira a species Ferrer Obiol et al. convincingly shows in three papers (2021, 2022 and especially 2023) that the Balearic plover Puffinus mauretanicus and the Mediterranean plover P. yelkouan should not constitute two separate species. Careful genetic clustering and species delimitation analyzes did not yield two distinct groups, phylogenetic analyzes did not obtain reciprocal monophyly between the two taxa, and so-called coalescent-based divergence time estimation showed that the two taxa did not diverge. These clear results, together with the lyres forming a gradient of phenotypes, with partially overlapping non-breeding distributions, nearly identical calls, and a lack of individual-level concordance between phenotypic characters, stable isotope, microsatellite, and mitochondrial DNA analyzes strengthen the merger into a species. Further evidence against two species is frequent interbreeding and the existence of a considerable number of mixed colonies. The merged species becomes P. yelkouan (Mediterranean Shearwater).
Report below with Google translation
Balearic lira and Mediterranean lira a species Ferrer Obiol et al. convincingly shows in three papers (2021, 2022 and especially 2023) that the Balearic plover Puffinus mauretanicus and the Mediterranean plover P. yelkouan should not constitute two separate species. Careful genetic clustering and species delimitation analyzes did not yield two distinct groups, phylogenetic analyzes did not obtain reciprocal monophyly between the two taxa, and so-called coalescent-based divergence time estimation showed that the two taxa did not diverge. These clear results, together with the lyres forming a gradient of phenotypes, with partially overlapping non-breeding distributions, nearly identical calls, and a lack of individual-level concordance between phenotypic characters, stable isotope, microsatellite, and mitochondrial DNA analyzes strengthen the merger into a species. Further evidence against two species is frequent interbreeding and the existence of a considerable number of mixed colonies. The merged species becomes P. yelkouan (Mediterranean Shearwater).