Comparative phylogeography of Australo-Papuan mangrove-restricted and mangrove-associated avifaunas

Nyári, Árpád S.; Joseph, Leo

doi:10.1111/bij.12082

Cited by 15 publications

(13 citation statements)

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“…Further work is also needed in the P. melanura clade, in which there is complex geographical structure, including paraphyly of at least two subspecies (P. m. robusta and P. m. dahli). The population from Ayr, Queensland, is geographically associated with P. m. robusta, but it groups genetically with P. m. dahli from the Bismarck Archipelago, a result highlighted by Nyári & Joseph (2013). We believe that fine-scale studies of gene flow including all populations of Australasian P. pectoralis and P. melanura are necessary before a comprehensive reworking of taxonomy can be undertaken.…”

Section: Taxonomymentioning

confidence: 97%

Molecular systematics of the world's most polytypic bird: thePachycephala pectoralis/melanura(Aves: Pachycephalidae) species complex

et al. 2013

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With more than 70 described subspecies distributed from Java to Fiji, the Golden Whistler species complex (Aves: Pachycephala pectoralis/melanura) is the world's most geographically variable bird species. We sequenced ten genes totalling 5743 bp from 202 individuals and 32 nominal subspecies, mostly from the Australasian and Polynesian lineages. We used concatenated maximum likelihood and Bayesian inference, as well as coalescent species tree analysis, to reconstruct a phylogeny. The resulting phylogeny is the most densely sampled and robust estimate of this group's evolutionary history to date and many novel relationships are revealed. The ingroup comprised three well‐supported clades. An Australasian clade inclusive of Vanuatu was sister to a clade including the Bismarck Archipelago, the Solomon Islands, and the Polynesian taxa minus Vanuatu, and sister to these two clades was Pachycephala citreogaster collaris of the Louisiade Archipelago. Some species‐level taxa endemic to the Pacific were found to be embedded in the ingroup (e.g. Pachycephala feminina, Pachycephala flavifrons, and Pachycephala jacquinoti), whereas others were found to be outside of the species complex (e.g. Pachycephala implicata). Generally, most nodes in the tree had strong support with the exception of several Polynesian lineages whose relationships remain equivocal. Relationships within each clade are discussed in detail, and current taxonomic treatments are critiqued in light of our results. © 2013 The Linnean Society of London

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Section: Taxonomymentioning

confidence: 97%

Molecular systematics of the world's most polytypic bird: thePachycephala pectoralis/melanura(Aves: Pachycephalidae) species complex

et al. 2013

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“…aridification: Douady et al, 2003;Maguire & Stigall, 2008), and ecological interactions (Kennedy et al, 2002). The island of New Guinea lies in one of the most tectonically active regions in the world and has long provided outstanding opportunity to study the impact of these processes on biogeography (Wallace, 1860;Mayr, 1944;Polhemus & Polhemus, 1998;Heads, 2002;Rawlings & Donnellan, 2003;Wüster et al, 2005;Deiner et al, 2011;Nyári & Joseph, 2013). Originating from the collision of the northward-moving Indo-Australian plate and the westward-moving Pacific plate, the current topographic configuration of New Guinea is a relatively young (approximately 10 Mya).…”

Section: Introductionmentioning

confidence: 99%

Contemporary genetic structure of an endemic freshwater turtle reflects Miocene orogenesis of New Guinea

Georges

Zhang

Unmack

et al. 2013

Biol J Linn Soc Lond

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The island of New Guinea lies in one of the most tectonically active regions in the world and has long provided outstanding opportunity for studies of biogeography. Several chelid turtles, of clear Gondwanal origin, occur in New Guinea; all species except one, the endemic Elseya novaeguineae, are restricted to the lowlands south of the Central Ranges. Elseya novaeguineae is found throughout New Guinea. We use mitochondrial and nuclear gene variation among populations of E. novaeguineae throughout its range to test hypotheses of recent extensive dispersal versus more ancient persistence in New Guinea. Its genetic structure bears the signature of Miocene vicariance events. The date of the divergence between a Birds Head (Kepala Burung) clade and clades north and south of the Central Ranges is estimated to be 19.8 Mya [95% highest posterior density (HPD) interval of 13.3-26.8 Mya] and the date between the northern and southern clades is estimated to be slightly more recent at 17.4 Mya (95% HPD interval of 11.0-24.5 Mya). The distribution of this endemic species is best explained by persistent occupation (or early invasion and dispersal) and subsequent isolation initiated by the dramatic landform changes that were part of the Miocene history of the island of New Guinea, rather than as a response to the contemporary landscape of an exceptionally effective disperser. The driving influence on genetic structure appears to have been isolation arising from a combination of: (1) the early uplift of the Central Ranges and establishment of a north-south drainage divide; (2) development of the Langguru Fold Belt; (3) the opening of Cenderawasih Bay; and (4) the deep waters of the Aru Trough and Cenderawasih Bay that come close to the current coastline to maintain isolation of the Birds Head through periods of sea level minima (−135 m). The dates of divergence of turtle populations north and south of the ranges predate the telescopic uplift of the central ranges associated with oblique subduction of the Australian Plate beneath the Pacific Plate. Their isolation was probably associated with earlier uplift and drainage isolation driven by the accretion of island terranes to the northern boundary of the Australian craton that occurred earlier than the oblique subduction. The opening of Cenderawasih Bay is too recent (6 Mya) to have initiated the isolation of the Birds Head populations from those of the remainder of New Guinea, although its deep waters will have served to sustain the isolation through successive sea level changes. The molecular evidence suggests that the Birds Head docked with New Guinea some time before the Central Ranges emerged as a barrier to turtle dispersal. Overall, deep genetic structure of the species complex reflects events and processes that occurred during Miocene, whereas structure within each clade across the New Guinea landscape relates to Pliocene and Pleistocene times.

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“…The seasonal availability of food resources ( i.e., insects and nectar) in mangroves is thought to influence bird species distribution and abundance in mangroves (Noske ) and its associated habitats (Woinarski ). In addition, the mangrove bird communities of northern Australia are particularly diverse (Ford , Noske ) and have more mangrove‐specialized species than those of other parts of the world (Luther & Greenberg , Nyári & Joseph ), increasing the expectation of resource partitioning among Australian mangrove bird species (Noske ).…”

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confidence: 99%

Resource Partitioning by Mangrove Bird Communities in North Australia

Noske

Lawes

2014

Biotropica

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Mangrove bird communities in north Australia comprise relatively few passerine species compared with other arboreal habitats in the region. Mangroves are dominated by a few tree species and there are potentially few resource axes available for partitioning by terrestrial birds. Competition for limited resources is predicted to cause strong niche differentiation and a highly structured, but low diversity, bird assemblage. Using multivariate and bipartite network analyses based on 1771 foraging observations (33% of 5320 behavioral observations), we examined resource partitioning by 20 terrestrial bird species in mangroves of north Australia. The mangrove bird community largely comprised generalist insectivores that partitioned insects by size with moderate-to-high interspecific overlap in diet. Gleaning for insects was the most common foraging mode. Few species specialized on nectar. Flowers of one or more mangrove species were available in every month of the year and insect abundance was correlated with flowering peaks. Niche differentiation by birds was determined by food type and foraging mode more than by broad spatial (mangrove zones) or temporal (seasonal) segregation of the use of resources. There was little evidence of bird species saturation or species sorting, suggesting loose species packing and a lesser role than expected for species interactions and interference competition in structuring the bird assemblage in mangroves.

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Comparative phylogeography of Australo-Papuan mangrove-restricted and mangrove-associated avifaunas

Cited by 15 publications

References 86 publications

Molecular systematics of the world's most polytypic bird: thePachycephala pectoralis/melanura(Aves: Pachycephalidae) species complex

Molecular systematics of the world's most polytypic bird: thePachycephala pectoralis/melanura(Aves: Pachycephalidae) species complex

Contemporary genetic structure of an endemic freshwater turtle reflects Miocene orogenesis of New Guinea

Resource Partitioning by Mangrove Bird Communities in North Australia

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