Multilocus species tree analyses resolve the radiation of the widespread Bufo bufo species group (Anura, Bufonidae)

Recuero, Ernesto; Canestrelli, Daniele; Vörös, Judit; Szabó, Krisztián; Poyarkov, N.A.; Arntzen, Jan W.; Crnobrnja‐Isailović, Jelka; Кидов, А. А.; Cogălniceanu, Dan; Caputo, F.; Nascetti, Giuseppe; Martínez‐Solano, Íñigo

doi:10.1016/j.ympev.2011.09.008

Cited by 98 publications

(118 citation statements)

References 56 publications

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“…dalmatina samples from Serbia were well separated from others collected in Spain, Moldova, France and Germany. In the B. bufo clade, samples from Serbia were placed together with those from Greece, Italy, Austria and Croatia, but somewhat apart from the sample from Portugal, being in line with the results of Recuero et al (2012) who revealed that common toads from the Iberian Peninsula belong to B. spinosus, while Appenine, Central European and Balkan ones represent B. bufo.…”

Section: Discussionsupporting

confidence: 87%

Identification of Syntopic Anuran Species in Early Tadpole Stages: Correspondence Between Morphometric and Genetic Data

Ilić¹

2016

Appl Ecol Env Res

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Abstract. Many European frogs and toads are relatively secretive species and except during breeding season, adults can rarely be seen during time-restricted fieldwork. In contrast, their tadpoles are easy to record and could be very useful in a brief biodiversity assessment. It is important to perform quick and accurate taxonomic identification of tadpoles, yet genetic methods are costly and cannot be routinely applied. We tested suitability of morphometric analysis for taxonomical distinction among tadpoles of early breeding local anuran species. Tadpole samples were collected simultaneously at three different locations in Republic of Serbia (South-eastern Europe) in habitats known to be breeding sites shared by brown frogs and the common toad. DNA barcoding verified Rana dalmatina, R. temporaria and Bufo bufo species, each collected in different location. The results of linear morphometric analyses suggested that relative head length and head width could be good discriminative characteristics for tadpoles of these two Rana species and those of B. bufo. To distinguish between tadpoles of two analyzed brown frog species, relative tail length could be used. For further development of the identification procedures for tadpoles of particular species, it is essential to involve geometric morphometrics and to analyze different larval developmental stages.

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Section: Discussionsupporting

confidence: 87%

Identification of Syntopic Anuran Species in Early Tadpole Stages: Correspondence Between Morphometric and Genetic Data

Ilić¹

2016

Appl Ecol Env Res

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“…Across the core outbreak region of the Western Pyrenees, the midwife toad ( Alytes obstetricans ) experiences annual mass mortality due to chytridiomycosis. Two other anuran species also commonly breed in this area, the common toad ( Bufo spinosus, previously known as Bufo bufo [21]) and the common frog ( Rana temporaria ). Across Europe, the prevalence of Bd within affected common toads is usually low [14], with the majority of individuals tolerating infection [22].…”

Section: Introductionmentioning

confidence: 99%

Climate forcing of an emerging pathogenic fungus across a montane multi-host community

Clare

Halder

Daniel

et al. 2016

Phil. Trans. R. Soc. B

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Changes in the timings of seasonality as a result of anthropogenic climate change are predicted to occur over the coming decades. While this is expected to have widespread impacts on the dynamics of infectious disease through environmental forcing, empirical data are lacking. Here, we investigated whether seasonality, specifically the timing of spring ice-thaw, affected susceptibility to infection by the emerging pathogenic fungus Batrachochytrium dendrobatidis (Bd) across a montane community of amphibians that are suffering declines and extirpations as a consequence of this infection. We found a robust temporal association between the timing of the spring thaw and Bd infection in two host species, where we show that an early onset of spring forced high prevalences of infection. A third highly susceptible species (the midwife toad, Alytes obstetricans) maintained a high prevalence of infection independent of time of spring thaw. Our data show that perennially overwintering midwife toad larvae may act as a year-round reservoir of infection with variation in time of spring thaw determining the extent to which infection spills over into sympatric species. We used future temperature projections based on global climate models to demonstrate that the timing of spring thaw in this region will advance markedly by the 2050s, indicating that climate change will further force the severity of infection. Our findings on the effect of annual variability on multi-host infection dynamics show that the community-level impact of fungal infectious disease on biodiversity will need to be re-evaluated in the face of climate change.This article is part of the themed issue ‘Tackling emerging fungal threats to animal health, food security and ecosystem resilience’.

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“…[20, 21]). Here we focus on the East-Asian tree frogs ( Hyla japonica group; recently changed to Dryophytes japonicus [22]), which offer an excellent opportunity to advance our historic biogeographic knowledge on this region.…”

Section: Introductionmentioning

confidence: 99%

Phylogeography reveals an ancient cryptic radiation in East-Asian tree frogs (Hyla japonica group) and complex relationships between continental and island lineages

et al. 2016

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BackgroundIn contrast to the Western Palearctic and Nearctic biogeographic regions, the phylogeography of Eastern-Palearctic terrestrial vertebrates has received relatively little attention. In East Asia, tectonic events, along with Pleistocene climatic conditions, likely affected species distribution and diversity, especially through their impact on sea levels and the consequent opening and closing of land-bridges between Eurasia and the Japanese Archipelago. To better understand these effects, we sequenced mitochondrial and nuclear markers to determine phylogeographic patterns in East-Asian tree frogs, with a particular focus on the widespread H. japonica.ResultsWe document several cryptic lineages within the currently recognized H. japonica populations, including two main clades of Late Miocene divergence (~5 Mya). One occurs on the northeastern Japanese Archipelago (Honshu and Hokkaido) and the Russian Far-East islands (Kunashir and Sakhalin), and the second one inhabits the remaining range, comprising southwestern Japan, the Korean Peninsula, Transiberian China, Russia and Mongolia. Each clade further features strong allopatric Plio-Pleistocene subdivisions (~2-3 Mya), especially among continental and southwestern Japanese tree frog populations. Combined with paleo-climate-based distribution models, the molecular data allowed the identification of Pleistocene glacial refugia and continental routes of postglacial recolonization. Phylogenetic reconstructions further supported genetic homogeneity between the Korean H. suweonensis and Chinese H. immaculata, suggesting the former to be a relic population of the latter that arose when the Yellow Sea formed, at the end of the last glaciation.ConclusionsPatterns of divergence and diversity were likely triggered by Miocene tectonic activities and Quaternary climatic fluctuations (including glaciations), causing the formation and disappearance of land-bridges between the Japanese islands and the continent. Overall, this resulted in a ring-like diversification of H. japonica around the Sea of Japan. Our findings urge for important taxonomic revisions in East-Asian tree frogs. First, they support the synonymy of H. suweonensis (Kuramoto, 1980) and H. immaculata (Boettger, 1888). Second, the nominal H. japonica (Günther, 1859) represents at least two species: an eastern (new taxon A) on the northern Japanese and Russian Far East islands, and a southwestern species (n. t. B) on southern Japanese islands and possibly also forming continental populations. Third, these continental tree frogs may also represent an additional entity, previously described as H. stepheni Boulenger, 1888 (senior synonym of H. ussuriensis Nikolskii, 1918). A complete revision of this group requires further taxonomic and nomenclatural analyses, especially since it remains unclear to which taxon the species-epitheton japonica corresponds to.Electronic supplementary materialThe online version of this article (doi:10.1186/s12862-016-0814-x) contains supplementary material, which is available to author...

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Multilocus species tree analyses resolve the radiation of the widespread Bufo bufo species group (Anura, Bufonidae)

Abstract: species tree analyses resolve the radiation of the widespread Bufo bufo species group (Anura, Bufonidae), Molecular Phylogenetics and Evolution (2011),

Cited by 98 publications

References 56 publications

Identification of Syntopic Anuran Species in Early Tadpole Stages: Correspondence Between Morphometric and Genetic Data

Identification of Syntopic Anuran Species in Early Tadpole Stages: Correspondence Between Morphometric and Genetic Data

Climate forcing of an emerging pathogenic fungus across a montane multi-host community

Phylogeography reveals an ancient cryptic radiation in East-Asian tree frogs (Hyla japonica group) and complex relationships between continental and island lineages

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