Phylogeny and biogeography of Philippine bent-toed geckos (Gekkonidae: Cyrtodactylus) contradict a prevailing model of Pleistocene diversification

Siler, Cameron D.; Oaks, Jamie R.; Esselstyn, Jacob A.; Diesmos, Arvin C.; Brown, Rafe M.

doi:10.1016/j.ympev.2010.01.027

Cited by 102 publications

(120 citation statements)

References 53 publications

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“…Over the last ten years alone, studies involving just a few of these groups have resulted in the discovery of numerous new species Brown and Guttman 2002;Rösler et al 2006;Brown and Gonzalez 2007;Siler et al 2007;Siler et al 2009aSiler et al , b, c, 2010b2011b;in press;Linkem et al 2010a;Welton et al 2009Welton et al , 2010a. As the number of faunal descriptions for sites across the Philippines increase, and our understanding of the mechanisms driving diversification in the archipelago improves, we are gradually approaching a more thorough understanding of the evolutionary history of Philippine vertebrates Esselstyn and Brown 2009;Jansa et al 2006;Linkem et al 2010b;Siler et al 2010aSiler et al , 2011a). However, before truly informed conservation planning can be implemented, much taxonomic work remains to be completed in this island archipelago most likely characterize by vastly underestimated biodiversity ).…”

Section: Reptilia (Turtles)mentioning

confidence: 99%

Amphibians and reptiles, Romblon Island group, central Philippines: comprehensive herpetofaunal inventory

Siler¹,

Swab²,

Oliveros³

et al. 2012

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We present results from several recent herpetological surveys in the Romblon Island Group (RIG), Romblon Province, central Philippines. Together with a summary of historical museum records, our data document the occurrence of 55 species of amphibians and reptiles in this small island group. Until the present effort, and despite past studies, herpetological diversity of the RIG and their biogeographical affinities has remained poorly understood. We report on observations of evolutionarily distinct amphibian species, including conspicuous, previously known, endemics like the forest frogs Platymantis lawtoni and P. levigatus and two additional suspected undescribed species of Platymantis. Moderate levels of reptile endemism prevail on these islands, including taxa like the karst forest gecko species Gekko romblon and the newly discovered species G. coi. Although relatively small and less diverse than the surrounding landmasses, the islands of Romblon Province contain remarkable levels of endemism when considered as percentage of the total fauna or per unit landmass area.

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Section: Reptilia (Turtles)mentioning

confidence: 99%

Amphibians and reptiles, Romblon Island group, central Philippines: comprehensive herpetofaunal inventory

Siler¹,

Swab²,

Oliveros³

et al. 2012

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“…This pattern can now be further tested across other taxa to investigate whether most organisms reacted similarly to sea-level oscillations or whether the specificities of each group will dictate their biogeographic scenarios. The emerging pattern from studies in similar systems, such as the Philippines, for example, is that 'Pleistocene Aggregate Island Complexes' (nearby islands that became connected into island platforms at lower sea-level periods) influenced patterns of biodiversity partitioning, but are not the only explanation for the diversification of their terrestrial biodiversity (Siler et al, 2010).…”

Section: Urocotyledon Phylogeography In Seychelles 185mentioning

confidence: 99%

“…As in other archipelagos cyclically isolated and connected, such as Sundaland, cryptic diversity may be higher than currently appreciated (Stuart, Inger & Voris, 2006;Inger, Stuart & Iskandar, 2009). In addition, the distribution of the different lineages may relate (Evans et al, 2003;Esselstyn, Widmann & Heaney, 2004), or not Siler et al, 2010), to the channel depths between islands and/or the patterns of isolation generated by sea-level oscillations. Only a few studies have examined the patterns of variation and diversification within the Seychelles.…”

Section: Introductionmentioning

confidence: 99%

Cryptic diversity within the endemic prehensile-tailed geckoUrocotyledon inexpectataacross the Seychelles Islands: patterns of phylogeographical structure and isolation at the multilocus level

Rocha

Harris²,

Posada

2011

Biological Journal of the Linnean Society

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The deciphering of the process of genetic differentiation of species with insular distributions is relevant for biogeographical and conservation reasons. Despite their importance as old gondwanic islands and part of the western Indian Ocean biodiversity hotspot, little is known about the genetic structure of taxa from the Seychelles Islands. We have examined the patterns of structure and isolation within Urocotyledon inexpectata (Reptilia: Geckkonidae), an endemic species from this archipelago. Genetic diversity was screened from populations across the archipelago for both mitochondrial and nuclear genes. Gene genealogies and model-based inference were used to explore patterns and timings of isolation between the main lineages. High levels of genetic diversity were found for the mitochondrial and some of the nuclear markers. This species harbours at least two highly differentiated lineages, exclusively distributed across the northern and southern groups of the islands. The main split between these was dated back to the Miocene-late Pliocene, but isolation events throughout the Pliocene and Pleistocene were also inferred. Migration between groups of islands was apparently nonexistent, except for one case. The low dispersal capabilities of this species, together with the intrinsic fragmented nature of its geographical distribution, seem to have resulted in highly structured populations, despite the cyclic periods of contact between the different island groups. These populations may currently represent more than one species, making U. inexpectata another example of a morphologically cryptic lineage with deep genetic divergence within gekkonids. The observed patterns suggest a hypothetical biogeographic scenario (of a main north-south phylogeographic break) for the Seychelles that can be further tested with the exploration of the phylogeographic structure of other Seychellois taxa.

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“…In addition, Palawan's positioning close to (and perhaps connected to) Borneo is a relatively recent phenomenon, happening only in the past 10 million years, in contrast to various volcanic formations that formed earlier off the coast of Borneo and are now part of the Philippine Archipelago (Hall 2002;Yumul et al 2009). Cases of lineages of organisms that cross Huxley's line have made obsolete the notion that Philippine biogeography is best understood by a single biotic break between it and Borneo, and Palawan in particular has been shown to play different roles for different lineages (Essylstyn et al 2010;Siler et al 2010). Crossings of Huxley's line are especially interesting when looking at poor dispersers, like freshwater amphibians.…”

mentioning

confidence: 99%

An old lineage of Cyphophthalmi (Opiliones) discovered on Mindanao highlights the need for biogeographical research in the Philippines

Clouse¹,

General

Diesmos

et al. 2011

Journal of Arachnology

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Phylogeny and biogeography of Philippine bent-toed geckos (Gekkonidae: Cyrtodactylus) contradict a prevailing model of Pleistocene diversification

Cited by 102 publications

References 53 publications

Amphibians and reptiles, Romblon Island group, central Philippines: comprehensive herpetofaunal inventory

Amphibians and reptiles, Romblon Island group, central Philippines: comprehensive herpetofaunal inventory

Cryptic diversity within the endemic prehensile-tailed geckoUrocotyledon inexpectataacross the Seychelles Islands: patterns of phylogeographical structure and isolation at the multilocus level

An old lineage of Cyphophthalmi (Opiliones) discovered on Mindanao highlights the need for biogeographical research in the Philippines

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