A molecular phylogeny of camaenid land snails from north-western Australia unravels widespread homoplasy in morphological characters (Gastropoda, Helicoidea)

Köhler, Frank; Criscione, Francesco

doi:10.1016/j.ympev.2014.11.009

Cited by 50 publications

(45 citation statements)

References 52 publications

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“…). These observations complement the discovery of highly endemic radiations of land snails across the region (Köhler & Criscione ). This repeated and deep genetic diversity suggests that the true diversity of the region is seriously underestimated by current taxonomy and suggests the presence of multiple long‐term evolutionary refugia across the region; both important issues to resolve to inform regional conservation strategies (Moritz et al .…”

Section: Introductionsupporting

confidence: 73%

Phylogenomics at the tips: inferring lineages and their demographic history in a tropical lizard, Carlia amax

et al. 2016

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High-throughput sequencing approaches offer opportunities to better understand the evolutionary processes driving diversification, particularly in nonmodel organisms. In particular, the 100-1000's of loci that can now be sequenced are providing unprecedented power in population, speciation and phylogenetic studies. Here, we apply an exon capture approach to generate >99% complete sequence and SNP data across >2000 loci from a tropical skink, Carlia amax, and exploit these data to identify divergent lineages and infer their relationships and demographic histories. This is especially relevant to low-dispersal tropical taxa that often have cryptic diversity and spatially dynamic histories. For C. amax, clustering of nuclear SNPs and coalescent-based species delimitation analyses identify four divergent lineages, one fewer than predicted based on geographically coherent mtDNA clades (>9.4% sequence divergence). Three of these lineages are widespread and parapatric on the mainland, whereas the most divergent is restricted to islands off the northeast Northern Territory. Tests for population expansion reject an equilibrium isolation-by-distance model for two of the three widespread lineages and infer refugial expansion sources in the relatively mesic northeast Top End and northwest Kimberley. The latter is already recognized as a hotspot of endemism, but our results also suggest that a stronger focus on the northeast Top End, and adjacent islands is warranted. More generally, our results show how genome-reduction methods such as exon capture can yield insights into the pattern and dynamics of biodiversity across complex landscapes with as yet poorly understood biogeographic history and how exon data can link between population and phylogenetic questions.

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Section: Introductionsupporting

confidence: 73%

Phylogenomics at the tips: inferring lineages and their demographic history in a tropical lizard, Carlia amax

et al. 2016

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“…Some of the King Edward River area (2 in Figure ) is already actively managed for conservation by private leaseholders. Other areas highlighted in the analysis, such as the Argyle to Purnululu region (4 in Figure ) are less surveyed, yet recent studies have revealed deeply divergent lineages (Laver et al., ) or entire radiations (Köhler & Criscione, ) in the east Kimberley. Clearly, more surveys and analysis are needed across the region.…”

Section: Discussionmentioning

confidence: 99%

Real‐world conservation planning for evolutionary diversity in the Kimberley, Australia, sidesteps uncertain taxonomy

Rosauer

Byrne²,

Blom

et al. 2018

CONSERVATION LETTERS

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Targeting phylogenetic diversity (PD) in systematic conservation planning is an efficient way to minimize losses across the Tree of Life. Considering representation of genetic diversity below and above species level, also allows robust analyses within systems where taxonomy is in flux. We use dense sampling of phylogeographic diversity for 11 lizard genera, to demonstrate how PD can be applied to a policy-ready conservation planning problem. Our analysis bypasses named taxa, using genetic data directly to inform conservation decisions. We highlight areas that should be prioritized for ecological management, and also areas that would provide the greatest benefit if added to the multisector conservation estate. We provide a rigorous and effective approach to represent the spectrum of genetic and species diversity in conservation planning. K E Y W O R D Sconservation planning, evolutionary diversity, gekkonidae, lizard conservation, Marxan, phylogenetic diversity, Scincidae, the KimberleyThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…In the Top End, other elements of the A6‐2 clade also show local endemism—one lineage (VRD) is endemic to the rocky substrates of the Victoria River district of the northwest Northern Territory (also home to an endemic lineage of rock wallaby and radiation of snails; Potter et al . , ; Köhler & Criscione ), and others (NA6 lineages) are distributed across woodland savannas of Top End. Most remarkable is the structuring of short‐range TE clade lineages across the northern Top End.…”

Section: Discussionmentioning

confidence: 99%

“…Within the Kimberley, the presence of distinct lineages in the mesic northwest (NWK and KA6-1) reflects recent discoveries of narrowly endemic species of lizards, frogs and snails from this region (Doughty 2011;K€ ohler 2011;Doughty et al 2012;Palmer et al 2013). In the Top End, other elements of the A6-2 clade also show local endemism-one lineage (VRD) is endemic to the rocky substrates of the Victoria River district of the northwest Northern Territory (also home to an endemic lineage of rock wallaby and radiation of snails; Potter et al 2012Potter et al , 2015K€ ohler & Criscione 2015), and others (NA6 lineages) are distributed across woodland savannas of Top End. Most remarkable is the structuring of short-range TE clade lineages across the northern Top End.…”

Section: Spatial Analysis Identifies Centres Of Endemismmentioning

confidence: 99%

“…The AMT is known to harbour substantial, geographically structured species diversity (Woinarski 1992;Crisp et al 2001;Bowman et al 2010;Gonz alez-Orozco et al 2011), especially in the more mesic areas of the northern Kimberley and northern Top End (Woinarski et al 2007;Palmer et al 2013;K€ ohler & Criscione 2015). Much attention (Cracraft 2001;Bowman et al 2010;Eldridge et al 2012;Pepper & Keogh 2014) has been given to identifying climatic (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Multilocus phylogeography reveals nested endemism in a gecko across the monsoonal tropics of Australia

et al. 2016

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Multilocus phylogeography can uncover taxonomically unrecognized lineage diversity across complex biomes. The Australian monsoonal tropics include vast, ecologically intact savanna-woodland plains interspersed with ancient sandstone uplands. Although recognized in general for its high species richness and endemism, the biodiversity of the region remains underexplored due to its remoteness. This is despite a high rate of ongoing species discovery, especially in wetter regions and for rock-restricted taxa. To provide a baseline for ongoing comparative analyses, we tested for phylogeographic structure in an ecologically generalized and widespread taxon, the gecko Heteronotia binoei. We apply coalescent analyses to multilocus sequence data (mitochondrial DNA and eight nuclear DNA introns) from individuals sampled extensively and at fine scale across the region. The results demonstrate surprisingly deep and geographically nested lineage diversity. Several intra-specific clades previously shown to be endemic to the region were themselves found to contain multiple, short-range lineages. To infer landscapes with concentrations of unique phylogeographic diversity, we probabilistically estimate the ranges of lineages from point data and then, combining these estimates with the nDNA species tree, estimate phyloendemism across the region. Highest levels of phyloendemism occur in northern Top End, especially on islands, across the topographically complex Arnhem escarpment, and across the sandstone ranges of the western Gulf region. These results drive home that deep phylogeographic structure is prevalent in tropical low-dispersal taxa, even ones that are ubiquitous across geography and habitats.

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A molecular phylogeny of camaenid land snails from north-western Australia unravels widespread homoplasy in morphological characters (Gastropoda, Helicoidea)

Cited by 50 publications

References 52 publications

Phylogenomics at the tips: inferring lineages and their demographic history in a tropical lizard, Carlia amax

Phylogenomics at the tips: inferring lineages and their demographic history in a tropical lizard, Carlia amax

Real‐world conservation planning for evolutionary diversity in the Kimberley, Australia, sidesteps uncertain taxonomy

Multilocus phylogeography reveals nested endemism in a gecko across the monsoonal tropics of Australia

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