Phylogeography of the crown-of-thorns starfish: genetic structure within the Pacific species

Vogler, Catherine; Benzie, John A. H.; Tenggardjaja, Kimberly; Ambariyanto,; Barber, Paul H.; Wörheide, Gert

doi:10.1007/s00338-012-1003-z

Cited by 42 publications

(75 citation statements)

References 47 publications

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“…3). For example, our model found the Great barrier reef to be the most likely source for colonization of Western Australia (although this result did not rise above our threshold for significance), consistent with previous findings in another sea star (Vogler et al 2013).…”

Section: Discussionsupporting

confidence: 91%

Return of the ghosts of dispersal past: historical spread and contemporary gene flow in the blue sea star <I>Linckia laevigata</I>

Crandall¹,

Treml²,

Liggins³

et al. 2014

BMS

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AbstrAct.-Marine animals inhabiting the Indian and Pacific oceans have some of the most extensive species ranges in the world, sometimes spanning over half the globe. These Indo-Pacific species present a challenge for study with both geographic scope and sampling density as limiting factors. Here, we augment and aggregate phylogeographic sampling of the iconic blue sea star, Linckia laevigata Linnaeus, 1758, and present one of the most geographically comprehensive genetic studies of any Indo-Pacific species to date, sequencing 392 base pairs of mitochondrial cOI from 791 individuals from 38 locations spanning over 14,000 km. We first use a permutation based multiple-regression approach to simultaneously evaluate the relative influence of historical and contemporary gene flow together with putative barriers to dispersal. We then use a discrete diffusion model of phylogeography to infer the historical migration and colonization routes most likely used by L. laevigata across the Indo-Pacific. We show that estimates of genetic structure have a stronger correlation to geographic distances than to "oceanographic" distances from a biophysical model of larval dispersal, reminding us that population genetic estimates of gene flow and genetic structure are often shaped by historical processes. While the diffusion model was equivocal about the location of the mitochondrial most recent common ancestor (MrcA), we show that gene flow has generally proceeded in a step-wise manner across the Indian and Pacific oceans. We do not find support for previously described barriers at the sunda shelf and within cenderwasih bay. rather, the strongest genetic disjunction is found to the east of cenderwasih bay along northern New Guinea. These results underscore the importance of comprehensive range-wide sampling in marine phylogeography.

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Section: Discussionsupporting

confidence: 91%

Return of the ghosts of dispersal past: historical spread and contemporary gene flow in the blue sea star <I>Linckia laevigata</I>

Crandall¹,

Treml²,

Liggins³

et al. 2014

BMS

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“…At the same time, we agree that some polychaete species could have been dispersed as biofoulers, in ballast water, or associated with Japanese giant oysters, and that this is especially well documented for serpulids (Zibrowius 1971, 1978, 1979, Zibrowius & Thorp 1989, Çinar 2013. Further, it has been shown that some species are capable of very long distance dispersion (Lessios & Robertson 2006, Vogler et al 2013), but we think this capacity is only present in a very low number of species, in comparison with the whole regional faunas. There are few studies on polychaete species and they show that an earlier perspective for widely distributed taxa (Bhaud 1982(Bhaud , 1984 was modified into more restricted distributions (Bhaud & Fernández-Alamo 2001), and that cosmopolitan species are very rare (Hartley 1984, Williams 1984, Salazar-Vallejo 2003.…”

Section: Discussionsupporting

confidence: 67%

Polychaete species (Annelida) described from the Philippine and China Seas

Salazar‐Vallejo

Carrera-Parra

Muir

et al. 2014

Zootaxa

939

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The South China and Philippine Seas are among the most diverse regions in the Western Pacific. Although there are several local polychaete checklists available, there is none comprising the whole of this region. Presented herein is a comprehensive list of the original names of all polychaete species described from the region. The list contains 1037 species, 345 genera and 60 families; the type locality, type depository, and information regarding synonymy are presented for each species.

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“…The relatively high (8.8-10.6%) genetic distance among the four-aforementioned species, based on the COI marker used for 'barcoding', suggests that these species diverged 1.95 to 3.65 million years ago (Vogler et al 2008). Within the four nominal species, genetic divergence was greatest for the Pacific population (Haszprunar et al 2017), and other studies have revealed conspicuous genetic structure when comparing among CoTS from different regions across the Pacific (Timmers et al 2012;Vogler et al 2013). Moreover, distinctive phenotypes of Acanthaster spp.…”

Section: Systematics and Biogeographymentioning

confidence: 89%

“…On the GBR, for example, genetic sampling during outbreaks has failed to resolve any structure (Benzie 1992;Harrison et al 2017), indicating rapid expansion in population size from multiple, undifferentiated latent populations. Similarly, studies elsewhere in the Pacific have identified largely homogeneous populations within specific reef systems (Vogler et al 2013;Yasuda et al 2015b;Tusso et al 2016), though CoTS generally exhibit substantial regional, archipelagic genetic structuring (Timmers et al 2012), reflective of limited large-scale dispersal. Greater resolution in genetic structure among outbreak populations, enabling greater insight into the source and spread of outbreaks, may be possible using more extensive and comprehensive sampling (e.g., singlenucleotide polymorphisms or SNPs), but these are yet to be tested for any Acanthaster sp.…”

mentioning

confidence: 94%

30 Years of Research on Crown-of-thorns Starfish (1986-2016): Scientific Advances and Emerging Opportunities

Pratchett¹,

Caballes²,

Wilmes³

et al. 2017

Preprint

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Abstract:Research on the coral-eating crown-of-thorns starfish (CoTS) has waxed and waned over the last few decades, mostly in accordance with the occurrence of population outbreaks at key locations, such as Australia's Great Barrier Reef. This review considers advances in our understanding of the biology and ecology of CoTS based on the latest resurgence of research interest, which culminated in this current special issue on the Biology, Ecology and Management of Crown-of-Thorns Starfish. More specifically, this review considers progress against 41 specific research questions posed in the seminal review by P. Moran 30 years ago, as well as exploring new directions for CoTS research. Despite the plethora of research on CoTS (> 1,200 research articles), there are persistent knowledge gaps that constrain effective management of outbreaks. Although directly addressing some of these questions will be extremely difficult, there have been considerable advances in understanding the biology of CoTS, if not the proximal and ultimate cause(s) of outbreaks. Moving forward, researchers need to embrace new technologies and opportunities to advance understanding of CoTS biology and behaviour, with focus given to key questions that will improve effectiveness of management to reduce the frequency and likelihood of future outbreaks, if not preventing them altogether.Keywords: Acanthaster; coral reefs, disturbance; management; population outbreaks; research priorities Peer-reviewed version available at Diversity 2017, 9, 41; doi:10.3390/d90400412 of 50 BackgroundCrown-of-thorns starfish (CoTS; Acanthaster spp., excluding A. brevispinus) are renowned for their capacity to devastate coral reef ecosystems . This is primarily because local densities of CoTS can increase from normally very low densities (<1 starfish.ha -1 ) to extremely high densities (>1,000 starfish.ha -1 ) during periodic population outbreaks (e.g. Chesher 1969). Moreover, CoTS are one of the largest and most efficient predators on scleractinian corals (Birkeland 1989). Whereas most other individual coral-feeding organisms (e.g., Chaetodon butterflyfishes, and Drupella snails) cause only localised injuries or tissue-loss (Cole et al. 2008;Rotjan and Lewis 2008), adult CoTS can kill entire corals, including relatively large colonies. High densities of CoTS will therefore, cause rapid and extensive coral depletion. In French Polynesia, for example, high densities of CoTS caused systematic coral loss around the entire circumference of the island of Moorea, killing >96% of coral between 2005(Kayal et al. 2012). More broadly, outbreaks of Acanthaster spp. are a major contributor to sustained declines in coral cover and degradation of coral reefs at many locations throughout the Indo west-Pacific (Osborne et al. 2011;Trapon et al. 2011;De'ath et al. 2012).While there has been considerable research, and a larger number of scientific articles (>940) focused on Acanthaster spp., extending back to the 1960s (Goreau 1964;Pearson and Endean 1969), research interest (and fundin...

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Phylogeography of the crown-of-thorns starfish: genetic structure within the Pacific species

Cited by 42 publications

References 47 publications

Return of the ghosts of dispersal past: historical spread and contemporary gene flow in the blue sea star <I>Linckia laevigata</I>

Return of the ghosts of dispersal past: historical spread and contemporary gene flow in the blue sea star <I>Linckia laevigata</I>

Polychaete species (Annelida) described from the Philippine and China Seas

30 Years of Research on Crown-of-thorns Starfish (1986-2016): Scientific Advances and Emerging Opportunities

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