Results 31 to 40 of about 177 (86)

Is The Amphibian Tree of Life really fatally flawed? [PDF]

open access: yes, 2008
Wiens (2007, Q. Rev. Biol. 82, 55–56) recently published a severe critique of Frost et al.\u27s (2006, Bull. Am. Mus. Nat. Hist. 297, 1–370) monographic study of amphibian systematics, concluding that it is “a disaster” and recommending that readers ...
al., et   +7 more
core   +8 more sources

Conservation of the critically endangered frog Telmatobufo bullocki in fragmented temperate forests of Chile : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Conservation Biology at Massey University, Albany, New Zealand [PDF]

open access: yes, 2015
Amphibians are currently facing several threats and are suffering severe population declines and extinction worldwide. Telmatobufo bullocki (Anura: Calyptocephalellidae) is one of the rarest and most endangered amphibian species in Chile's temperate ...
Moreno-Puig, Virginia
core  

Mapping an endangered living fossil's distribution, threats, and protection coverage

open access: yesConservation Science and Practice, Volume 6, Issue 4, April 2024.
We used Species Distribution Models to determine the potential geographic distribution of a vulnerable species, Calyptocephalella gayi, the helmeted water toad, an endemic amphibian from Chile. In addition, we estimated the role of the Chilean Protected Areas in safeguarding the species and determined the level of risk at which the species is submitted
Juan Contardo, Antonieta Labra
wiley   +1 more source

Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness (Addenda 2013). [PDF]

open access: yes, 2013
The kingdom Animalia is here estimated to have a total of 1,659,420 described species (including 133,692 fossil species) in 40 phyla. Among these, the most successful phylum Arthropoda alone represents 1,302,809 species, or about 78.5% of the total.
Zhang, Zhi-Qiang
core   +2 more sources

Conservación de anfibios de Chile: memorias del taller de conservación de anfibios para organismos públicos [PDF]

open access: yes, 2012
Los anfibios han dado origen a toda la diversidad de vertebrados presentes en la tierra, incluyendo a nosotros, los seres humanos. Los anfibios mantienen los ecosistemas equilibrados y controlan de forma natural las plagas de insectos.
Soto-Azat, Claudio   +1 more
core  

Amphibian fungal panzootic causes catastrophic and ongoing loss of biodiversity [PDF]

open access: yes, 2019
Anthropogenic trade and development have broken down dispersal barriers, facilitating the spread of diseases that threaten Earth's biodiversity.We present a global, quantitative assessment of the amphibian chytridiomycosis panzootic, one of the most ...
Acevedo AA   +40 more
core   +7 more sources

CALYPTOCEPHALELLA (ANURA, AUSTRALOBATRACHIA) REMAINS FROM RÍO SANTA CRUZ (EARLY–MIDDLE MIOCENE, SANTA CRUZ FORMATION), SANTA CRUZ PROVINCE, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2019
In this contribution, the first anuran fossils from classical Santacrucian localities of the Río Santa Cruz are described. According to proportions and features recognized in the few skull elements recorded, the remains are assigned to the southern ...
Paula Muzzopappa
doaj  

Article Efficient Sequencing of Anuran mtDNAs and a Mitogenomic Exploration of the Phylogeny and Evolution of Frogs [PDF]

open access: yes, 2020
Anura (frogs and toads) constitute over 88% of living amphibian diversity but many important questions about their phylogeny and evolution remain unresolved.
Dan Liang   +5 more
core  

OBSERVACIONES SOBRE HISTORIA NATURAL DE UNA LARVA DE SAPO HERMOSO, Telmatobufo venustus (PHILIPPI, 1899) (ANURA: CALYPTOCEPHALELLIDAE)

open access: yesRevista Latinoamericana de Herpetología
Se encontró una larva de sapo hermoso Telmatobufo venustus, desplazándose contra la corriente de un río usando su disco oral como ventosa. Esta conducta no ha sido reportada en el género Telmatobufo, pero muestra similitudes morfológicas y conductuales con otros renacuajos con conductas suctoriales y que se desarrollan en sistemas lóticos. Es necesario
Alejandro Piñeiro Gonzalez   +3 more
openaire   +1 more source

A new genus of pipimorph frog (anura) from the early Cretaceous Crato formation (aptian) and the evolution of South American tongueless frogs [PDF]

open access: yes, 2019
Pipimorpha is a clade of tongueless anurans with a wide fossil record. Furthermore, the oldest South American fossils come from the Late Cretaceous (Cenomanian) of Patagonia, Argentina.
Agnolin, Federico   +6 more
core   +1 more source

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