Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)

Bufo variegatus is an intriguing South American toad, usually related to the spinulosus group, a southwestern representative of the so-called “narrow- skulled” line of the genus (Blair, 1972), On the other hand it shows some peculiar morphological traits fairly characteristic of the Eurasian calamit...

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Autor principal: Cei, José Miguel Alfredo María
Formato: Articulo Contribucion a revista
Lenguaje:Inglés
Publicado: 1977
Materias:
Zoología
Bufo
Serological relationships
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/89088
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-89088
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Bufo
Serological relationships
spellingShingle Zoología
Bufo
Serological relationships
Cei, José Miguel Alfredo María
Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)
topic_facet Zoología
Bufo
Serological relationships
description Bufo variegatus is an intriguing South American toad, usually related to the spinulosus group, a southwestern representative of the so-called “narrow- skulled” line of the genus (Blair, 1972), On the other hand it shows some peculiar morphological traits fairly characteristic of the Eurasian calamita group, e.g. its rounded parotoids, laterally allocated on a line which is internal to the edge of the upper eyelid. Geographical distribution and ecological trends of Bufo variegatus are also interesting, this austral anuran being especially related with the Antar- tandic or Valdivian Nothofagus forest, a biocenotic community relic of the Tertiary times. The Antartandic forest is now restricted to the rainy Chilean environments of the Pacific shores, however in the Oligocenic and Miocenic periods it extended through the Patagonian flats, at present a whole desertic area between the Atlantic coast and the early Cordilleran embossments. A remarkable fossil amphibian fauna has been found there (Scarritt Pocket formation, Upper Oligocene: Schaffer, 1949; Chaffee, 1952). This assembles leptodactvloid frogs still existing in the Chilean batrachofauna (Ca- lyptocephalella or Caudiverhera, Eupso- phus) together with some uncertain forms, e.g. Eophractus, and a small toad, also reported as a telmatobiid frog (Lynch, 1971) but probably belonging to the bufonidr calamita-stock from the northern continent (Tihen, 1962; Estes, pers. comm.). The evidence of a Patagonian calamita-like toad in the Cenozoic Nothofagus biocenosis sounds very suggestive, having in mind the above mentioned morphological similarities between the living Bufo calamita from Europe and Bufo variegatus. Ancestral relationships between Bufo variegatus and the Holarctic and Paleotropical toads have been postulated by Gallardo (1962).
format Articulo
Contribucion a revista
author Cei, José Miguel Alfredo María
author_facet Cei, José Miguel Alfredo María
author_sort Cei, José Miguel Alfredo María
title Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)
title_short Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)
title_full Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)
title_fullStr Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)
title_full_unstemmed Serological Relationships of the Patagonian Toad Bufo variegatus (Gunther)
title_sort serological relationships of the patagonian toad bufo variegatus (gunther)
publishDate 1977
url http://sedici.unlp.edu.ar/handle/10915/89088
work_keys_str_mv AT ceijosemiguelalfredomaria serologicalrelationshipsofthepatagoniantoadbufovariegatusgunther
bdutipo_str Repositorios
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