Multilocus phylogeny of Paratelmatobiinae (Anura: Leptodactylidae) reveals strong spatial structure and previously unknown diversity in the Atlantic Forest hotspot

Santos, Marcus Thadeu T.; Magalhães, Rafael Félix de; Lyra, Mariana L.; Santos, Fabrício R.; Zaher, Hussam; Giasson, Luís Olímpio Menta; García, Paulo C. A.; Carnaval, Ana Carolina; Haddad, Célio F. B.

doi:10.1016/j.ympev.2020.106819

Cited by 24 publications

(24 citation statements)

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“…The authors reported that most of the genetic structure was correlated with geographical fragmentation. This process was also important for at least the frogs in the genera Crossodactylodes and Rupirana (Santos et al, 2020). Therefore, other processes than fragmentation in FCS model (Flantua & Hooghiemstra, 2018) are at least as good of an explanation, with both being probably complementary to describe the campo rupestre mountain fingerprint.…”

Section: Discussionmentioning

confidence: 99%

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Colonization rather than fragmentation explains the geographical distribution and diversification of treefrogs endemic to Brazilian shield sky islands

Oswald

Lemes

Thomé

et al. 2022

Journal of Biogeography

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Aim: Geographical patterns of montane biodiversity worldwide are related to biotic and abiotic factors, such as historical climate dynamics and species dispersal capabilities, which affect the biota from population to community levels. Understanding of processes related to population diversification in extra-Andean Neotropical mountains remains largely unknown. Here, we tested how colonization of new areas as opposed to fragmentation of geographical ranges influenced the distribution and diversification of frogs from Brazilian mountains. Location: Espinhaço Range, the largest extra-Andean mountain range in South America. Taxon: Ledge treefrog Bokermannohyla saxicola. Methods: We used multilocus DNA and morphometric data throughout the species' distribution to delimit lineages, infer phylogenetic relationships and estimate divergence times. We used ecological niche modelling (ENM) and approximate Bayesian computation (ABC) to reconstruct changes of geographical distribution and population sizes for testing alternative hypotheses of diversification concerning fragmentation and colonization. Results: We found four evolutionary significant lineages that diverged from the Pliocene to the Early Pleistocene. All lineages were validated by DNA and morphometric data by independent and joint analyses. ENM showed that climatic fluctuations might have influenced the species' distribution, whereas ABC model selection further supports associated demographic changes. Taken together, a Pleistocene

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Section: Discussionmentioning

confidence: 99%

“…The SE is also divided into several isolated mountains all the way to Quadrilátero Ferrífero at its southern end (Colli‐Silva et al, 2019). The ER is home to an outstanding diversity of animals, plants and fungi, with several endemic species (Salazar et al, 2019; Santos et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Colonization rather than fragmentation explains the geographical distribution and diversification of treefrogs endemic to Brazilian shield sky islands

Oswald

Lemes

Thomé

et al. 2022

Journal of Biogeography

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“…Species of the genus Adenomera are for example most widely distributed throughout the lowlands of tropical South America east of the Andes (Fouquet et al 2014). Nonetheless, the origin and geographic range evolution of Aromobatidae and Leptodactylidae are thought to be intimately linked to the Andes (Santos et al 2009; Hutter et al 2017), and most species in these clades Aromobatidae and Leptodactylidae are associated with montane environments and are leaf-litter dwelling, which favors allopatry (Fouquet et al 2013; Santos et al 2020).…”

Section: Methodsmentioning

confidence: 99%

“…Species of the genus Adenomera are for example distributed throughout the lowlands of tropical South America east of the Andes (Fouquet et al 2014). Nonetheless, most species in Aromobatidae and Leptodactylidae are associated with montane environments and are leaf-litter dwelling, which favors allopatry (Fouquet et al 2013;Santos et al 2020).…”

Section: Long-lived Mountain Building Triggering Both Ancient and Recent Radiationsmentioning

confidence: 99%

Mountain radiations are not only rapid and recent: Ancient diversification of South American frog and lizard families related to Paleogene Andean orogeny and Cenozoic climate variations

Boschman

Condamine

2021

Preprint

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Mountainous areas host a disproportionately large fraction of Earth's biodiversity, suggesting a causal relationship between mountain building and biological diversification. Mountain clade radiations are generally associated with environmental heterogeneity, and with ecological opportunities created during the formation of high-elevation habitats. In South America, most documented Andean clade radiations are recent (Neogene) and rapid. However, so far only few studies have explicitly linked Andean elevation to species diversification. Here, we present a curve of Andean elevation based on a recent compilation of paleo-elevational data back to the Late Cretaceous, and analyse the diversification history of six Andean frog and lizard families that originated equally far back in time. For two clades (Aromobatidae and Leptodactylidae), we find that they diversified most rapidly during the early phase of mountain building (Late Cretaceous - Paleogene), when the first high-elevation habitats emerged in South America. The diversification of two other clades (Centrolenidae and Dendrobatidae) are correlated with Cenozoic temperature variations, with higher speciation (and for Dendrobatidae, also higher extinction) rates during warm periods. The last two clades (Hemiphractidae and Liolaemidae) are best explained by environment-independent diversification, although for Liolaemidae, an almost equally strong positive correlation was found between speciation and Andean elevation since the late Eocene. Our findings imply that throughout the long-lived history of surface uplift in the Andes, mountain building drove the diversification of different clades at different times, while not directly affecting other clades. Our study illustrates the importance of paleogeographic reconstructions that capture the complexity and heterogeneity of mountain building in our understanding of the effects that a changing environment plays in shaping biodiversity patterns observed today.

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“…(Alvarenga 1997), harboring an extremely diverse anuran fauna (Silva et al 2018). In an elevational gradient, although the mountain tops generally present a reduced species richness (Rahbek 1995;Lomolino 2001), it is there where we often find narrow endemic and quite often still undescribed species (e.g., Leite et al 2012;Walker et al 2018;Santos et al 2020). During field surveys in the highlands of the Serra do Caparaó (see Zornosa-Torres et al 2020), in Adobe Audition CC).…”

Section: Introductionmentioning

confidence: 99%

Head in the clouds: a new dwarf frog species of the Physalaemus signifer clade (Leptodactylidae, Leiuperinae) from the top of the Brazilian Atlantic Forest

Leal

Zornosa-Torres

Augusto‐Alves

et al. 2021

EJT

889

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In an elevational gradient, the mountain top generally presents a reduced species diversity. However, it is there where we often find microendemic and quite often still undescribed species. That prediction is very common in underexplored Neotropical mountains, like those of the Caparaó National Park – a protected area that includes the highest peak of the Atlantic Forest, a megadiverse domain. Up in its top, we found a dwarf frog of the genus Physalaemus (Anura, Leptodactylidae, Leiuperinae), belonging to the P. signifer clade. After an integrative (morphological, bioacoustical, and genetic) analysis, we were able to describe it as a new species and found it to be sister to P. maculiventris. Due to its very restricted distribution at a site with extreme environmental conditions (which includes fires and frosts) and current instability in national environmental policy, we suggest this to be classified as an endangered species. A brief description of its natural history and the description of the species itself will now enable its proper conservation status categorization and the future planning for conservation actions.

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Multilocus phylogeny of Paratelmatobiinae (Anura: Leptodactylidae) reveals strong spatial structure and previously unknown diversity in the Atlantic Forest hotspot

Cited by 24 publications

References 119 publications

Colonization rather than fragmentation explains the geographical distribution and diversification of treefrogs endemic to Brazilian shield sky islands

Colonization rather than fragmentation explains the geographical distribution and diversification of treefrogs endemic to Brazilian shield sky islands

Mountain radiations are not only rapid and recent: Ancient diversification of South American frog and lizard families related to Paleogene Andean orogeny and Cenozoic climate variations

Head in the clouds: a new dwarf frog species of the Physalaemus signifer clade (Leptodactylidae, Leiuperinae) from the top of the Brazilian Atlantic Forest

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