| range expansion and hybridization in round island petrels (pterodroma spp.): evidence from microsatellite genotypes. | historical records suggest that the petrels of round island (near mauritius, indian ocean) represent a recent, long-distance colonization by species originating from the atlantic and pacific oceans. the majority of petrels on round island appear most similar to pterodroma arminjoniana, a species whose only other breeding locality is trindade island in the south atlantic. using nine microsatellite loci, patterns of genetic differentiation in petrels from round and trindade islands were analysed. ... | 2010 | 20618891 |
| phylogenetic relationships in pterodroma petrels are obscured by recent secondary contact and hybridization. | the classification of petrels (pterodroma spp.) from round island, near mauritius in the indian ocean, has confounded researchers since their discovery in 1948. in this study we investigate the relationships between round island petrels and their closest relatives using evidence from mitochondrial dna sequence data and ectoparasites. far from providing clear delimitation of species boundaries, our results reveal that hybridization among species on round island has led to genetic leakage between ... | 2011 | 21655247 |
| widespread gene flow between oceans in a pelagic seabird species complex. | global-scale gene flow is an important concern in conservation biology as it has the potential to either increase or decrease genetic diversity in species and populations. although many studies focus on the gene flow between different populations of a single species, the potential for gene flow and introgression between species is understudied, particularly in seabirds. the only well studied example of a mixed-species, hybridising population of petrels exists on round island, in the indian ocean ... | 2017 | 28833786 |
| on the origin of halipeurus heraldicus on round island petrels: cophylogenetic relationships between petrels and their chewing lice. | lice phylogenetic relationships have often been used to elucidate host relationships and vice versa. in this study, we investigate the louse genus halipeurus which parasitizes bird hosts in the families procellariidae, hydrobatidae and pelecanoididae. the presence of two lice species on pterodroma arminjoniana in different breeding grounds (halipeurus heraldicus on round island, off mauritius in the indian ocean and halipeurus kermadecensis on trindade island in the atlantic ocean) has led to so ... | 2010 | 20079857 |