A comprehensive vicariant model for Southwest Pacific biotas

Ung, Visotheary; Michaux, Bernard; Leschen, Richard A. B.

doi:10.1071/sb16032

Cited by 9 publications

(8 citation statements)

References 104 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Acanthisitti, basal Oscines), most extant psittaciformes have high flight capacity, covering large distances in a single day (Collar, 1997; Rowley, 1997). The Lord Howe Rise and Fairway Rise plateaus subsided below sea level around the late Eocene (40–35 Ma), coinciding with our divergence age for Strigopoidea (42–36 Ma) (Ung et al, 2016).…”

Section: Discussionsupporting

confidence: 87%

Southern hemisphere tectonics in the Cenozoic shaped the pantropical distribution of parrots and passerines

Selvatti

Galvão

Mayr

et al. 2022

Journal of Biogeography

View full text Add to dashboard Cite

Aim: Explanations of pantropical distributions are challenging for taxa that diverged during the Cenozoic, after Gondwana broke apart. The 'boreotropics hypothesis' suggests that pantropical birds originated in the Laurasian forests. Extant parrots (Psittaciformes) are one the most species-rich pantropical avian clades, but their known evolutionary history does not fit a boreotropical origin. Most living parrots and the earliest diverging lineages of the Psittaciformes inhabit the remnants of Gondwana, whereas the oldest stem and crown fossils are from the remnants of Laurasia. Our study proposes a biogeographic hypothesis that focuses on the Cenozoic connections between Laurasia and Gondwana to explain extant and fossil geographical distributions. Location: Global.Taxon: Psittaciformes. Methods:We generated a time tree using previously derived data from 32 molecular markers for 312 parrot species and reconstructed their biogeographic history using maximum likelihood. Two scenarios were compared: one with dispersal constrained to adjacent areas, including the connections between the Northern and Southern Hemispheres, and one without this constraint. Results:Our results indicate that the pantropical distribution of parrots was shaped by two major geological events. First, the final breakup of parts of Gondwana may have caused the first splits within crown parrots, establishing two parallel radiations: Psittacidae in the Neotropics and Psittaculidae in Australasia. Second, igneous palaeoprovinces could have connected major biogeographic realms. It seems that Atlantogea and Eurogondwana were important, as they connected South America, Africa and Europe, thus reconciling the Gondwanan crown splits and the early Laurasian fossils.Main Conclusions: Our time tree allowed more concise biogeographic correlations between parrots and their sister group, the passerines and Earth's tectonic history.The crown lineages of Psittacopasseres appear to have originated in the Southern Hemisphere remnants of Gondwana, but stem lineages appear to have been able to disperse into the Northern Hemisphere through palaeobiogeographic provinces in the Cenozoic.

show abstract

Section: Discussionsupporting

confidence: 87%

Southern hemisphere tectonics in the Cenozoic shaped the pantropical distribution of parrots and passerines

Selvatti

Galvão

Mayr

et al. 2022

Journal of Biogeography

View full text Add to dashboard Cite

show abstract

“…Besides the main island, the Lord Howe Island group also includes Ball's Pyramid 23 km south‐east of the main island and the Elizabeth and Middleton Reefs about 160 and 220 km north of Lord Howe Island, respectively (Hutton, ). Although the heavily eroded volcanic islands were not of Gondwanan origin themselves, the Lord Howe Rise on which they were situated had indeed been derived from the eastern part of this ancient continent, and had probably existed as a series of isolated islands in the east and south (Ung et al., ). Based on our inference from cladogenesis, ancestral range reconstruction and the geological history of Lord Howe Island, the presence of Howeria on the island was, unlikely as it might seem, probably best inferred as a relatively recent dispersal event from the Australian mainland after 6.9 Ma (node 10; Fig.…”

Section: Discussionmentioning

confidence: 99%

Phylogeny and historical biogeography of Gondwanan moss‐bugs (Insecta: Hemiptera: Coleorrhyncha: Peloridiidae)

Damgaard

Burckhardt

et al. 2018

Cladistics

View full text Add to dashboard Cite

The moss bugs of the Peloridiidae, a small group of cryptic and mostly flightless insects, is the only living family in Coleorrhyncha (Insecta: Hemiptera). Today 37 species in 17 genera are known from eastern Australia, New Zealand, New Caledonia and Patagonia, and the peloridiids are thereby a group with a classical southern Gondwanan distribution. To explicitly test whether the present-day distribution of the Peloridiidae actually results from the sequential breakup of southern Gondwana, we provide the first total-evidence phylogenetic study based on morphological and molecular characters sampled from about 75% of recognized species representing 13 genera. The results largely confirm the established morphological phylogenetic context except that South American Peloridium hammoniorum constitutes the sister group to the remaining peloridiids. A timescale analysis indicates that the Peloridiidae began to diversify in the land mass that is today's Patagonia in the late Jurassic (153 Ma, 95% highest posterior density: 78-231 Ma), and that splitting into the three extant well-supported biogeographical clades (i.e. Australia, Patagonia and New Zealand/New Caledonia) is consistent with the sequential breakup of southern Gondwana in the late Cretaceous, indicating that the current transoceanic disjunct distributions of the Peloridiidae are best explained by a Gondwanan vicariance hypothesis.

show abstract

“…Recent analyses of South‐west Pacific biogeography have begun to address problems in interpreting fossil‐calibrated timetrees. For example, Ung, Michaux, & Leschen () were sceptical about the practice of ‘…dating phylogenies using the age of the oldest fossil, which, despite giving only a minimum age for divergence, becomes a maximum estimate by proxy…’ (p. 433). Since fossil‐calibrated clade ages represent minimum ages, earlier origins cannot be ruled out (the main failing of the method).…”

Section: Chronological Analysis Of New Caledonian Cladesmentioning

confidence: 99%

Recent advances in New Caledonian biogeography

Heads

2018

Biological Reviews

View full text Add to dashboard Cite

The biota of New Caledonia is one of the most unusual in the world. It displays high diversity and endemism, many peculiar absences, and far-flung biogeographic affinities. For example, New Caledonia is the only place on Earth with both main clades of flowering plants -the endemic Amborella and 'all the rest', and it also has the highest concentration of diversity in conifers. The discovery of Amborella's phylogenetic position led to a surge of interest in New Caledonian biogeography, and new studies are appearing at a rapid rate. This paper reviews work on the topic (mainly molecular studies) published since 2013. One current debate is focused on whether any biota survived the marine transgressions of the Paleocene and Eocene. Total submersion would imply that the entire fauna was derived by long-distance dispersal from continental areas since the Eocene, but only if no other islands (now submerged) were emergent. A review of the literature suggests there is little actual evidence in geology for complete submersion. An alternative explanation for New Caledonia's diversity is that the archipelago acted as a refugium, and that the biota avoided the extinctions that occurred in Australia. However, this is contradicted by the many groups that are anomalously absent or depauperate in New Caledonia, although represented there by a sister group. The anomalous absences, together with the unusual levels of endemism, can both be explained by vicariance at breaks in and around New Caledonia. New Caledonia has always been situated at or near a plate boundary, and its complex geological history includes the addition of new terranes (by accretion), orogeny, and rifting. New Caledonia comprises 'basement' terranes that were part of Gondwana, as well as island arc and forearc terranes that accreted to the basement after it separated from Gondwana. The regional tectonic history helps explain the regional biogeography, as well as distribution patterns within New Caledonia. These include endemics on the basement terranes (for example, the basal angiosperm, Amborella), disjunctions at the West Caledonian fault zone, and great biotic differences between Grande Terre and the Loyalty Islands.

show abstract

A comprehensive vicariant model for Southwest Pacific biotas

Cited by 9 publications

References 104 publications

Southern hemisphere tectonics in the Cenozoic shaped the pantropical distribution of parrots and passerines

Southern hemisphere tectonics in the Cenozoic shaped the pantropical distribution of parrots and passerines

Phylogeny and historical biogeography of Gondwanan moss‐bugs (Insecta: Hemiptera: Coleorrhyncha: Peloridiidae)

Recent advances in New Caledonian biogeography

Contact Info

Product

Resources

About