| paraphyly of the blue tit (parus caeruleus) suggested from cytochrome b sequences. | the phylogenetic relationships of the blue tit-azure tit assemblage (genus parus; aves: passeriformes) were studied using mitochondrial dna sequences of 24 specimens representing seven subspecies from eurasia and north africa. previous work based on comparative morphological and acoustic data suggested a division of the blue tit (parus caeruleus) into two species. our analyses clearly indicate that the blue tit represents a paraphyletic assemblage, including a european/middle asian clade that is ... | 2002 | 12128025 |
| the taxonomic status of 'phylogroups' in the parus teneriffae complex (aves): comments on the paper by kvist et al. (2005). | | 2006 | 16314112 |
| return flight to the canary islands--the key role of peripheral populations of afrocanarian blue tits (aves: cyanistes teneriffae) in multi-gene reconstructions of colonization pathways. | afrocanarian blue tits (cyanistes teneriffae) have a scattered distribution on the canary islands and on the north african continent. to date, the canary islands have been considered the species' main pleistocene evolutionary center, but their colonization pathways remain uncertain. we set out to reconstruct a dated multi-gene phylogeny and ancestral ranges for cyanistes tit species including the currently unstudied, peripheral libyan population of c. t. cyrenaicae. in all reconstructions the mo ... | 2013 | 23454090 |
| the evolutionary history of afrocanarian blue tits inferred from genomewide snps. | a common challenge in phylogenetic reconstruction is to find enough suitable genomic markers to reliably trace splitting events with short internodes. here, we present phylogenetic analyses based on genomewide single-nucleotide polymorphisms (snps) of an enigmatic avian radiation, the subspecies complex of afrocanarian blue tits (cyanistes teneriffae). the two sister species, the eurasian blue tit (cyanistes caeruleus) and the azure tit (cyanistes cyanus), constituted the out-group. we generated ... | 2015 | 25407440 |
| colonisation and diversification of the blue tits (parus caeruleus teneriffae-group) in the canary islands. | the blue tit (parus caeruleus teneriffae group) is proposed to have colonised the canary islands from north africa according to an east-to-west stepping stone model, and today, the species group is divided into four subspecies, differing in morphological, acoustic, and ecological characters. this colonisation hypothesis was tested and the population structure between and within the islands studied using mitochondrial dna sequences of the non-coding and relatively fast evolving control region. ou ... | 2005 | 15683925 |
| reproductive success of the canarian echium simplex (boraginaceae) mediated by vertebrates and insects. | oceanic island ecosystems favour the appearance of novel interactions as a consequence of their depauperate and disharmonic flora and fauna. we investigated echium simplex, endemic to the anaga biosphere reserve in ne tenerife, canary islands, belongs to the canarian bird-flower element. along two flowering seasons, we studied the breeding system of e. simplex, identified the floral visitors and compared the pollination effectiveness of different animal guilds (insects versus vertebrates) by mea ... | 2019 | 30334319 |