Genetic differentiation within a widespread “supertramp” taxon: Molecular phylogenetics of the Louisiade White-eye ( Zosterops griseotinctus )

Linck, Ethan; Schaack, Sarah; Dumbacher, John P.

doi:10.1016/j.ympev.2015.08.018

Cited by 16 publications

(33 citation statements)

References 20 publications

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“…Intraspecific variation also decreases with age (Figure 6f), suggesting that late-stage species have experienced local extinctions (on small islands) and are now only found on islands with higher elevations acting as refugia (centrifugal speciation sensu Brown, 1957). The distribution of the correlates between range size and age (Figure 6c) outlines a 'maximum potential' for the geographical extent of a species given its age ( Figure 7), suggesting that we observe both supertramps (see Appendix generate stage II great speciators Linck, Schaack, & Dumbacher, 2016;Pedersen et al, 2018).…”

Section: Taxon Cycles Within the Core Campephagidaementioning

confidence: 86%

“…However, the geographical clustering of closely related species (especially within Lalage and Edolisoma , Figure ) suggests ancestral stages of supertramps and great speciators across the archipelagos. Several studies have demonstrated how turnover within such stage I supertramps may generate stage II great speciators (Jønsson, Bowie, et al., ; Linck, Schaack, & Dumbacher, ; Pedersen et al., ).…”

Section: Discussionmentioning

confidence: 99%

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Reconciling supertramps, great speciators and relict species with the taxon cycle stages of a large island radiation (Aves: Campephagidae)

Pepke

Irestedt

Fjeldså

et al. 2019

Journal of Biogeography

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Aim The taxon cycle concept provides a geographically explicit and testable set of hypotheses for exploring the evolutionary processes underlying the distribution of species in space and time. Here, we test taxon cycle predictions within a large avian island radiation, the core Campephagidae and explicitly integrate the concepts of ‘supertramps’, ‘great speciators’ and relictualization. Location The Indo‐Pacific, Australia, Asia and Africa. Taxon Corvoid passerine birds. Methods We constructed a new time‐calibrated molecular phylogeny of the core Campephagidae (cuckooshrikes, cicadabirds and trillers) using Bayesian phylogenetic methods. Ancestral range estimation methods and diversification rate analyses were used to explore the dispersal and diversification history of the group. We used an extensive dataset on wing morphology and range distributions to test for correlations between evolutionary age of species and dispersal capacity, diversification and distribution, while accounting for phylogenetic non‐independence. Results The core Campephagidae represents an ecologically homogeneous radiation distributed across the Indo‐Pacific, Australia, Southeast Asia and Africa. Its members represent a continuum of dispersal abilities; some species are widespread and undifferentiated (‘supertramps’) or show strong differentiation of local populations (‘great speciators’), and a few are endemic to single islands (relicts). We show that older species relative to younger species inhabit fewer and larger islands at higher elevations. The level of intraspecific variation measured as the number of subspecies also decreases with species age, and is highest in ‘great speciators’ with intermediate levels of dispersal abilities (as per hand‐wing index). Main conclusions Based on trait correlations with species age, we infer phases of range expansion and contraction over millions of years (taxon cycles), within a single monophyletic group of birds. These observations demonstrate reconciliation of the concepts of ‘supertramps’, ‘great speciators’ and relictual palaeoendemics within the temporal stages of the taxon cycle.

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Section: Taxon Cycles Within the Core Campephagidaementioning

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Reconciling supertramps, great speciators and relict species with the taxon cycle stages of a large island radiation (Aves: Campephagidae)

Pepke

Irestedt

Fjeldså

et al. 2019

Journal of Biogeography

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“…On the other hand, the recurring pattern of single island endemism in Tetragnatha hints at evolutionary changes in this dispersal potential where certain species or clades within Tetragnatha secondarily have limited dispersal ability. The Tetragnatha as a genus thus exhibits high dispersal abilities and at the same time high intrinsic property to quickly adapt and diversify, having a "superspeciator" attributes (Linck et al, 2016;Pedersen et al, 2018).…”

Section: Tetragnatha Dispersal Abilitiesmentioning

confidence: 99%

Global biogeography of Tetragnatha spiders reveals multiple colonization of the Caribbean

Čandek¹,

Agnarsson

Binford

et al. 2018

Preprint

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Organismal variation in dispersal ability can directly affect levels of gene flow amongst populations, therefore importantly shaping species distributions and species richness patterns. The intermediate dispersal model of biogeography (IDM) predicts that in island systems, species diversity of those lineages with an intermediate dispersal potential is the highest. We broadly test this prediction, focusing on 'four-jawed spiders' (genus Tetragnatha) of the Caribbean archipelago. First, we report on original sampling of this globally distributed genus with numerous widespread as well as endemic species. We then reconstruct multiple Tetragnatha phylogenies from roughly 300 individuals delineated into 54 putative species. Our results support the monophyly of the four-jawed spiders but reject the monophyly of those lineages that reach the Caribbean, where we find low levels of endemism yet high diversity within Tetragnatha. The chronogram detects a potential early overwater colonization of the Caribbean, and in combination with reconstructed biogeographic history, refutes the possibility of ancient vicariant origins of Caribbean Tetragnatha as well as the GAARlandia landbridge scenario. Instead, biogeographic results hypothesize multiple colonization events to, and from the Caribbean since mid-Eocene to late-Miocene. Tetragnatha seems unique among the arachnids explored so far in comprising some species that are excellent dispersers, and others that are not, perhaps having secondarily lost this dispersal propensity. A direct test of the IDM would require consideration of three categories of dispersers. However, four-jawed spiders do not fit one of these three a priori definitions, but rather represent a more complex combination of attributes of a 'dynamic disperser'.

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“…Over the past three decades, novel laboratory techniques have enhanced our ability to generate DNA sequence data from millions of natural history specimens collected prior to the molecular era (Payne & Sorenson, ). The advent of ancient DNA methods has allowed researchers to obtain both nuclear and mitochondrial DNA (mtDNA) sequences from extinct taxa (Cooper et al., ; Fleischer et al., ), explore changes in genetic diversity and population genetic structure over time (Habel, Husemann, Finger, Danley, & Zachos, ; Weber, Stewart, Garza, & Lehman, ), incorporate threatened or difficult‐to‐collect taxa into population genetic or phylogenetic studies (Guschanski et al., ; Linck, Schaack, & Dumbacher, ), and take advantage of extant biological collections to boost sample size and inferential power (Linck, Schaack, & Dumbacher, ; Wójcik, Kawałko, Marková, Searle, & Kotlík, ). Now, high‐throughput sequencing has dramatically increased both the overall efficiency of data collection and the total amount of sequence data that it is possible to collect from museum specimens (Hofreiter et al., ; Rizzi, Lari, Gigli, De Bellis, & Caramelli, ) by overcoming scalability hurdles intrinsic to traditional Sanger sequencing methods (Soltis & Soltis, ; Wandeler, Hoeck, & Keller, ).…”

Section: Introductionmentioning

confidence: 99%

Evaluating hybridization capture with RAD probes as a tool for museum genomics with historical bird specimens

Linck

Hanna

Sellas

et al. 2017

Ecology and Evolution

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Laboratory techniques for high‐throughput sequencing have enhanced our ability to generate DNA sequence data from millions of natural history specimens collected prior to the molecular era, but remain poorly tested at shallower evolutionary time scales. Hybridization capture using restriction site‐associated DNA probes (hyRAD) is a recently developed method for population genomics with museum specimens. The hyRAD method employs fragments produced in a restriction site‐associated double digestion as the basis for probes that capture orthologous loci in samples of interest. While promising in that it does not require a reference genome, hyRAD has yet to be applied across study systems in independent laboratories. Here, we provide an independent assessment of the effectiveness of hyRAD on both fresh avian tissue and dried tissue from museum specimens up to 140 years old and investigate how variable quantities of input DNA affect sequencing, assembly, and population genetic inference. We present a modified bench protocol and bioinformatics pipeline, including three steps for detection and removal of microbial and mitochondrial DNA contaminants. We confirm that hyRAD is an effective tool for sampling thousands of orthologous SNPs from historic museum specimens to describe phylogeographic patterns. We find that modern DNA performs significantly better than historical DNA better during sequencing but that assembly performance is largely equivalent. We also find that the quantity of input DNA predicts %GC content of assembled contiguous sequences, suggesting PCR bias. We caution against sampling schemes that include taxonomic or geographic autocorrelation across modern and historic samples.

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Genetic differentiation within a widespread “supertramp” taxon: Molecular phylogenetics of the Louisiade White-eye ( Zosterops griseotinctus )

Cited by 16 publications

References 20 publications

Reconciling supertramps, great speciators and relict species with the taxon cycle stages of a large island radiation (Aves: Campephagidae)

Reconciling supertramps, great speciators and relict species with the taxon cycle stages of a large island radiation (Aves: Campephagidae)

Global biogeography of Tetragnatha spiders reveals multiple colonization of the Caribbean

Evaluating hybridization capture with RAD probes as a tool for museum genomics with historical bird specimens

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