On the origin of Halipeurus heraldicus on Round Island petrels: Cophylogenetic relationships between petrels and their chewing lice

Hammer, Sjúrður; Brown, Ruth; Bugoni, Leandro; Palma, Ricardo L.; Hughes, Joseph

doi:10.1016/j.ympev.2010.01.013

Cited by 5 publications

(4 citation statements)

References 45 publications

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“…Identification of feather lice from Round Island birds therefore suggests contact between P. heraldica and the other species present on the island, with consequent infestation of P. arminjoniana and P. neglecta by H. heraldicus . Co-phylogenetic analysis of Halipeurus lice and their hosts has confirmed that the presence of H. heraldicus on P. arminjoniana and P. neglecta on Round Island is the result of a host switch whereas H. kermadecensis is the ancestral parasite of P. arminjoniana [15].…”

Section: Discussionmentioning

confidence: 86%

“…In addition, P. arminjoniana from Trindade Island and P. neglecta both host the same louse species, Halipeurus kermadecensis , whereas P. heraldica hosts a different species, H. heraldicus . Intriguingly, there have been reports that the petrel population on Round Island, thought to comprise mainly P. arminjoniana and P. neglecta , also hosts H. heraldicus [15] . Lice are relatively immobile and do not survive away from their host, therefore dispersal between individuals occurs via direct contact between hosts, usually during copulation or care of the young [16] .…”

Section: Introductionmentioning

confidence: 99%

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Phylogenetic Relationships in Pterodroma Petrels Are Obscured by Recent Secondary Contact and Hybridization

Brown

Jordan²,

Faulkes

et al. 2011

PLoS ONE

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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 populations from different ocean basins. The most common species on the island, Pterodroma arminjoniana, appears to be hybridizing with two rarer species (P. heraldica and P. neglecta), subverting the reproductive isolation of all three and allowing gene flow. P. heraldica and P. neglecta breed sympatrically in the Pacific Ocean, where P. arminjoniana is absent, but no record of hybridization between these two exists and they remain phenotypically distinct. The breakdown of species boundaries in Round Island petrels followed environmental change (deforestation and changes in species composition due to hunting) within their overlapping ranges. Such multi-species interactions have implications not only for conservation, but also for our understanding of the processes of evolutionary diversification and speciation.

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Section: Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Phylogenetic Relationships in Pterodroma Petrels Are Obscured by Recent Secondary Contact and Hybridization

Brown

Jordan²,

Faulkes

et al. 2011

PLoS ONE

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“…We conclude that hybridization and back‐crossing between P. arminjoniana and P. neglecta on Round Island is widespread, however given the skewed population sizes of these two species birds with intermediate plumage and giving intermediate calls are not necessarily F1 hybrids. Birds from Round Island carrying introgressed P. neglecta DNA do not appear to have spread to the population of P. arminjoniana on Trindade Island, a conclusion that is further supported by evidence from mtDNA haplotypes, ectoparasites and morphometrics (Hammer et al. 2010; Brown, unpublished).…”

Section: Discussionmentioning

confidence: 89%

Range expansion and hybridization in Round Island petrels (Pterodroma spp.): evidence from microsatellite genotypes

et al. 2010

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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. The two populations exhibit low but significant levels of differentiation in allele frequencies and estimates of migration rate between islands using genetic data are also low, supporting the hypothesis that these populations have recently separated but are now isolated from one another. A second population of petrels, most similar in appearance to the Pacific species P. neglecta, is also present on Round Island and observations suggest that the two petrel species are hybridizing. Vocalizations recorded on the island also suggest that hybrid birds may be present within the population. Data from microsatellite genotypes support this hypothesis and indicate that there may have been many generations of hybridization and back-crossing between P. arminjoniana and P. neglecta on Round Island. Our results provide an insight into the processes of dispersal and the consequences of secondary contact in Procellariiformes.

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“…Few cases of symbioses involve a significant pattern of co-cladogenesis between organisms, and most of the known cases involve parasites and their hosts [ 57 , 58 , 59 ]. Some other cases that were thought to follow co-cladogenesis, such as the case of figs and their pollinators, have been demonstrated to be less specific than once thought [ 60 , 61 , 62 ].…”

Section: Discussionmentioning

confidence: 99%

Fidelity and Promiscuity in an Ant-Plant Mutualism: A Case Study of Triplaris and Pseudomyrmex

Sánchez

2015

PLoS ONE

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The association between the myrmecophyte Triplaris and ants of the genus Pseudomyrmex is an often-reported example of mutualism but no molecular studies have examined this association to date. In this study, the interspecific relationships of Triplaris were reconstructed using five molecular markers (two chloroplast and three nuclear), and the relationships of the associated Pseudomyrmex using two molecular regions (one mitochondrial and one nuclear). A data set including all known collections of plant hosts and resident ants was also compiled. The pattern of distribution of both organisms reveals that there are varying degrees of host specificity; most ants show broader host usage (promiscuous) but one species (P. dendroicus) is faithful to a single species of Triplaris. In most ant-plant interactions, host usage is not specific at the species level and preferences may result from geographical or ecological sorting. The specificity of P. dendroicus could be based on chemical recognition of the host they were raised on.

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On the origin of Halipeurus heraldicus on Round Island petrels: Cophylogenetic relationships between petrels and their chewing lice

Cited by 5 publications

References 45 publications

Phylogenetic Relationships in Pterodroma Petrels Are Obscured by Recent Secondary Contact and Hybridization

Phylogenetic Relationships in Pterodroma Petrels Are Obscured by Recent Secondary Contact and Hybridization

Range expansion and hybridization in Round Island petrels (Pterodroma spp.): evidence from microsatellite genotypes

Fidelity and Promiscuity in an Ant-Plant Mutualism: A Case Study of Triplaris and Pseudomyrmex

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