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Paul M Oliver - One of the best experts on this subject based on the ideXlab platform.
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Oligocene divergence of frogmouth birds (Podargidae) across Wallace's Line
Biology letters, 2020Co-Authors: Paul M Oliver, Holly Heiniger, Andrew F. Hugall, Leo Joseph, Kieren J. MitchellAbstract:Wallace's Line demarcates the transition between the differentiated regional faunas of Asia and Australia. However, while patterns of biotic differentiation across these two continental landmasses and the intervening Island groups (Wallacea) have been extensively studied, patterns of long-term dispersal and diversification across this region are less well understood. Frogmouths (Aves: Podargidae) are a relictual family of large nocturnal birds represented by three extant genera occurring, respectively, in Asia, 'Sahul' (Australia and New Guinea) and the Solomon Islands, thus spanning Wallace's Line. We used new mitochondrial genomes from each of the extant frogmouth genera to estimate the timeline of frogmouth evolution and dispersal across Wallace's Line. Our results suggest that the three genera diverged and dispersed during the mid-Cenozoic between approximately 30 and 40 Mya. These divergences are among the oldest inferred for any trans-Wallacean vertebrate lineage. In addition, our results reveal that the monotypic Solomons frogmouth (Rigidipenna inexpectata) is one of the most phylogenetically divergent endemic bird lineages in the southwest Pacific. We suggest that the contemporary distribution of exceptionally deep divergences among extant frogmouth lineages may be explained by colonization of, and subsequent long-term persistence on, Island Arcs in the southwest Pacific during the Oligocene. These Island Arcs may have provided a pathway for biotic dispersal out of both Asia and Australia that preceded the formation of extensive emergent landmasses in Wallacea by at least 10 million years.
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lizards of the lost Arcs mid cenozoic diversification persistence and ecological marginalization in the west pacific
Proceedings of The Royal Society B: Biological Sciences, 2018Co-Authors: Paul M Oliver, Rafe M Brown, Fred Kraus, Eric Rittmeyer, Scott L Travers, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the taxon cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world9s most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread, and provide evidence to support one key prediction of the taxon cycle, specifically that interior habitats (lowland rainforests, montane habitats) are home to a greater number of older or relictual lineages than are peripheral habitats (coastal and open forests). On continental fringes, however, the clade shows a disjunct distribution away from lowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the taxon cycle), but we find this pattern most strongly on continental fringes not Islands. Our results also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal and colonization. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace9s Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia.
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Sequence alignment from Lizards of the lost Arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific
2018Co-Authors: Paul M Oliver, Fred Kraus, Eric Rittmeyer, Scott L Travers, Rafe Brown, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the Taxon Cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world's most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread, and there is no evidence that interior habitats (lowland rainforests, montane habitats) are home to more older or relictual lineages than peripheral habitats (coastal and open forests) as might be predicted by a Taxon Cycle. On continental fringes however, the lineage shows a disjunct distribution away from lowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the Taxon Cycle), but find this pattern most strongly on continental fringes not Islands. They also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace's Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia
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Sequence alignment from Lizards of the lost Arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific
2018Co-Authors: Paul M Oliver, Fred Kraus, Eric Rittmeyer, Scott L Travers, Rafe Brown, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the taxon cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world's most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread , and provide evidence to support one key prediction of the taxon cycle, specifically that interior habitats (lowland rainforests, montane habitats) are home to a greater number of older or relictual lineages than are peripheral habitats (coastal and open forests).Oncontinental fringes, however, the clade shows a disjunct distribution away fromlowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the taxon cycle), but we find this pattern most strongly on continental fringes not Islands. Our results also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal and colonization. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace's Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia
Cameron D Siler - One of the best experts on this subject based on the ideXlab platform.
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lizards of the lost Arcs mid cenozoic diversification persistence and ecological marginalization in the west pacific
Proceedings of The Royal Society B: Biological Sciences, 2018Co-Authors: Paul M Oliver, Rafe M Brown, Fred Kraus, Eric Rittmeyer, Scott L Travers, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the taxon cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world9s most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread, and provide evidence to support one key prediction of the taxon cycle, specifically that interior habitats (lowland rainforests, montane habitats) are home to a greater number of older or relictual lineages than are peripheral habitats (coastal and open forests). On continental fringes, however, the clade shows a disjunct distribution away from lowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the taxon cycle), but we find this pattern most strongly on continental fringes not Islands. Our results also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal and colonization. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace9s Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia.
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Sequence alignment from Lizards of the lost Arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific
2018Co-Authors: Paul M Oliver, Fred Kraus, Eric Rittmeyer, Scott L Travers, Rafe Brown, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the Taxon Cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world's most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread, and there is no evidence that interior habitats (lowland rainforests, montane habitats) are home to more older or relictual lineages than peripheral habitats (coastal and open forests) as might be predicted by a Taxon Cycle. On continental fringes however, the lineage shows a disjunct distribution away from lowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the Taxon Cycle), but find this pattern most strongly on continental fringes not Islands. They also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace's Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia
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Sequence alignment from Lizards of the lost Arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific
2018Co-Authors: Paul M Oliver, Fred Kraus, Eric Rittmeyer, Scott L Travers, Rafe Brown, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the taxon cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world's most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread , and provide evidence to support one key prediction of the taxon cycle, specifically that interior habitats (lowland rainforests, montane habitats) are home to a greater number of older or relictual lineages than are peripheral habitats (coastal and open forests).Oncontinental fringes, however, the clade shows a disjunct distribution away fromlowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the taxon cycle), but we find this pattern most strongly on continental fringes not Islands. Our results also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal and colonization. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace's Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia
Paterno R Castillo - One of the best experts on this subject based on the ideXlab platform.
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origin and geodynamic implication of the dupal isotopic anomaly in volcanic rocks from the philippine Island Arcs
Geology, 1996Co-Authors: Paterno R CastilloAbstract:Newly acquired Sr, Nd, and Pb isotope data, combined with other recently available data in the literature, clearly show that Philippine arc volcanic rocks do not have a true Dupal isotopic anomaly. Instead, most of the volcanic rocks must have come from a mantle source with a “Dupal-like” Indian Ocean– to enriched ocean-Island-basalt composition. This mantle source is present beneath the Philippine Sea plate and the South China Sea plate on either side of the Philippine arc systems. The isotopic signature of Philippine arc volcanics is most probably inherited from the previous southern locations of the different geologic terranes that compose the modern Philippine Island Arcs. The new data also show that the isotopic signature of Philippine arc volcanics, similar to volcanic rocks from other western Pacific Island-arc–back-arc settings, is mainly a function of the mantle source and was only recently modified by a component from subducted sediments and crust.
Eric Rittmeyer - One of the best experts on this subject based on the ideXlab platform.
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lizards of the lost Arcs mid cenozoic diversification persistence and ecological marginalization in the west pacific
Proceedings of The Royal Society B: Biological Sciences, 2018Co-Authors: Paul M Oliver, Rafe M Brown, Fred Kraus, Eric Rittmeyer, Scott L Travers, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the taxon cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world9s most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread, and provide evidence to support one key prediction of the taxon cycle, specifically that interior habitats (lowland rainforests, montane habitats) are home to a greater number of older or relictual lineages than are peripheral habitats (coastal and open forests). On continental fringes, however, the clade shows a disjunct distribution away from lowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the taxon cycle), but we find this pattern most strongly on continental fringes not Islands. Our results also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal and colonization. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace9s Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia.
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Sequence alignment from Lizards of the lost Arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific
2018Co-Authors: Paul M Oliver, Fred Kraus, Eric Rittmeyer, Scott L Travers, Rafe Brown, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the Taxon Cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world's most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread, and there is no evidence that interior habitats (lowland rainforests, montane habitats) are home to more older or relictual lineages than peripheral habitats (coastal and open forests) as might be predicted by a Taxon Cycle. On continental fringes however, the lineage shows a disjunct distribution away from lowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the Taxon Cycle), but find this pattern most strongly on continental fringes not Islands. They also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace's Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia
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Sequence alignment from Lizards of the lost Arcs: mid-Cenozoic diversification, persistence and ecological marginalization in the West Pacific
2018Co-Authors: Paul M Oliver, Fred Kraus, Eric Rittmeyer, Scott L Travers, Rafe Brown, Cameron D SilerAbstract:Regions with complex geological histories often have diverse and highly endemic biotas, yet inferring the ecological and historical processes shaping this relationship remains challenging. Here, in the context of the taxon cycle model of insular community assembly, we investigate patterns of lineage diversity and habitat usage in a newly characterized vertebrate radiation centred upon the world's most geologically complex insular region: Island Arcs spanning from the Philippines to Fiji. On Island Arcs taxa are ecologically widespread , and provide evidence to support one key prediction of the taxon cycle, specifically that interior habitats (lowland rainforests, montane habitats) are home to a greater number of older or relictual lineages than are peripheral habitats (coastal and open forests).Oncontinental fringes, however, the clade shows a disjunct distribution away fromlowland rainforest, occurring in coastal, open or montane habitats. These results are consistent with a role for biotic interactions in shaping disjunct distributions (a central tenant of the taxon cycle), but we find this pattern most strongly on continental fringes not Islands. Our results also suggest that peripheral habitats on Islands, and especially Island Arcs, may be important for persistence and diversification, not just dispersal and colonization. Finally, new phylogenetic evidence for subaerial Island archipelagos (with an associated biota) east of present-day Wallace's Line since the Oligocene has important implications for understanding long-term biotic interchange and assembly across Asia and Australia
Keda Cai - One of the best experts on this subject based on the ideXlab platform.
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evolution of the central asian orogenic belt along the siberian margin from neoproterozoic early paleozoic accretion to devonian trench retreat and a comparison with phanerozoic eastern australia
Earth-Science Reviews, 2019Co-Authors: Min Sun, Chutian Shu, Chao Yuan, Yingde Jiang, Le Zhang, Keda CaiAbstract:Abstract The Central Asian Orogenic Belt (CAOB), the largest accretionary orogen on Earth, has received considerable attention in the last 25 years. Various models have been proposed to explain the evolution of the CAOB, incorporating processes such as the lateral duplication of one single arc system along large shear zones, terrane accretion/amalgamation, oroclinal bending, ridge subduction, and trench migration. To better understand accretionary processes along the southwestern Siberian margin, we synthesized new and published detrital zircon and Hf isotope data from various tectonic units along the southwestern Siberian margin. Our results show that the accretion of microcontinents and Island Arcs might have dominated the southwestern Siberian margin in the Neoproterozoic. This was followed, during the Early Paleozoic, by the development of a very large accretionary wedge system. An abrupt increase of zircon eHf(t) during the earliest Devonian is explained by a major phase of trench retreat. A comparison of our results with another major Phanerozoic accretionary orogen, the Tasmanides in eastern Australia, shows a similar behavior of episodic trench retreat. We further suggest that the Late Mesozoic to Cenozoic fragmentation of the eastern Gondwanan margin, and the formation of multiple Island Arcs within marginal sea basins in the southwestern Pacific Ocean, is a possible analogue for the Late Paleozoic development of the East Junggar Island arc system in the CAOB.
