The oral apparatus of tadpoles of Rana dalmatina, Bombina variegata, Bufo bufo, and Bufo viridis (Anura)

Bonacci, Antonella; Brunelli, Elvira; Sperone, Emilio; Tripepi, Sandro

doi:10.1016/j.jcz.2007.02.004

Cited by 20 publications

(6 citation statements)

References 17 publications

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“…These data suggest that the population of the Lao is in a good state of conservation and the contemporary presence of the adult phase and the larval phase testifies to its vitality (Maitland and Lyle 2000). This record confirms the richness in aquatic species of the Lao river system and of the Pollino National Park in general (Talarico et al 2004, Bonacci et al 2008. Further studies expanding into other Calabrian rivers are necessary to evaluate the actual presence of the European Brook Lamprey in this region.…”

Section: Discussionsupporting

confidence: 74%

New southernmost record of the European Brook Lamprey, Lampetra planeri (Bloch, 1784) (Agnatha, Petromyzontidae)

Sperone¹,

Filice²,

Giglio³

et al. 2019

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Section: Discussionsupporting

confidence: 74%

New southernmost record of the European Brook Lamprey, Lampetra planeri (Bloch, 1784) (Agnatha, Petromyzontidae)

Sperone¹,

Filice²,

Giglio³

et al. 2019

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“…This is also the case with most bufonids (the basal family of Agastorophrynia, the sister group of Leiuperidae; Grant et al, 2006); although the process is interrupted, marginal papillae never form medially and thus a ventral gap persists (e.g. Limbaugh & Volpe, 1957;Bonacci et al, 2008;our personal observations). Nevertheless, the lack of further developmental studies and a comprehensive phylogeny of the Leiuperidae precludes making hypotheses whether this generalized C3 is the plesiomorphic configuration for the family.…”

Section: Discussionmentioning

confidence: 88%

Different pathways are involved in the early development of the transient oral apparatus in anuran tadpoles (Anura: Leiuperidae)

Candioti

Haad

Baldo

et al. 2011

Biological Journal of the Linnean Society

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The oral apparatus of anuran tadpoles is a unique structure composed of soft and keratinized parts surrounding the mouth. Among the many variations, a common oral apparatus involves a dorsal gap in the marginal papillae, keratinized jaw sheaths, and two upper and three lower rows of labial teeth. In Leiuperidae, besides this generalized morphology, four configurations are distinguished by the arrangement of the lower marginal papillae and the number of lower tooth rows. Study of the early oral ontogeny in 12 species representing these five configurations shows variations in the development of the lower marginal papillae and the third lower labial tooth row. Similar configurations may result from similar pathways (e.g. Physalaemus cuvieri group and Pseudopaludicola falcipes) or different pathways (e.g. generalized oral discs of Pleurodema and Physalaemus). Different oral configurations may result from overlapping trajectories ending at different stages (e.g. Physalaemus riograndensis and Ph. biligonigerus) or different trajectories (e.g. Ph. henselii and Ph. gracilis). Further studies are needed to interpret the role that heterochrony has played in evolutionary change within this family. The unsuspected variation occurring in this transient structure highlights its evolutionary potential and might be insightful in studies of anuran phylogenies that are largely based on adult characters.

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“…Larvae in streams are often depressed and elongate in body form, with strong axial musculature, ventral mouths and long tooth rows (Orton, 1953; Altig & Johnston, 1989). Filter‐feeding pelagic tadpoles are said to have a deeper tail fin, a narrower mouth and a larger branchial basket than macrophagous benthic species (Orton, 1953; Vera Candioti, 2007; Bonacci et al. , 2008).…”

Section: Introductionmentioning

confidence: 99%

Getting in shape: adaptation and phylogenetic inertia in morphology of Australian anuran larvae

Buskirk¹

2009

J of Evolutionary Biology

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The external morphology of frog larvae is predicted to vary among habitats, for a variety of functional reasons. I performed a phylogenetic comparative study to test whether correlations between habitat and the shape of the tadpole and its oral disc are adaptive in 82 species from south‐eastern Australia in the families Hylidae and Myobatrachidae. Habitat distributions and phylogenetic relationships were compiled from the literature and shape was quantified using geometric morphometric analysis of published drawings. Results indicate that shape evolved towards different optima in different habitats while also showing appreciable levels of phylogenetic inertia. Within myobatrachids, evolution of terrestrial tadpoles was associated with a short and shallow head/body and a shallow tail. In aquatic species, the use of benthic microhabitats was correlated with a long shallow tail, dorsal eye position, shallow head/body and ventral mouth with robust jaw sheaths. Even traits with evidence for adaptation evolved slowly in response to habitat shifts, usually requiring ≥10 million years to evolve half‐way to a new optimum. Although these findings support adaptive evolution of tadpole body form, they also highlight a strong influence of ancestral character states and indicate that phenotypes in extant species are partly maladaptive.

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The oral apparatus of tadpoles of Rana dalmatina, Bombina variegata, Bufo bufo, and Bufo viridis (Anura)

Cited by 20 publications

References 17 publications

New southernmost record of the European Brook Lamprey, Lampetra planeri (Bloch, 1784) (Agnatha, Petromyzontidae)

New southernmost record of the European Brook Lamprey, Lampetra planeri (Bloch, 1784) (Agnatha, Petromyzontidae)

Different pathways are involved in the early development of the transient oral apparatus in anuran tadpoles (Anura: Leiuperidae)

Getting in shape: adaptation and phylogenetic inertia in morphology of Australian anuran larvae

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