Results 11 to 20 of about 85 (68)

Amphibian Intestine Allometry. [PDF]

open access: yesJ Morphol
Total intestine length scales hyper‐allometrically, that is, at an exponent > 0.33, with body mass across vertebrates, including amphibians. ABSTRACT Across four large vertebrate groups—fish, reptiles, birds and mammals— intestine length has been shown to scale hyper‐allometrically with body mass (BM), at an exponent higher than the geometric ...
Duque-Correa MJ   +7 more
europepmc   +2 more sources

Influence of Prey Availability in the Dissimilarity of Predator–Prey Interactions

open access: yes, 2022
The Bulletin of the Ecological Society of America, Volume 103, Issue 3, July 2022.
Karoline Ceron   +5 more
wiley   +1 more source

Ultrastructural characteristics of the follicle cell-oocyte interface in the oogenesis of Ceratophrys cranwelli

open access: yesZygote, 2002
In this work we carried out an ultrastructural analysis of the cell interface between oocyte and follicle cells during the oogenesis of the amphibian Ceratophrys cranwelli, which revealed a complex cell-cell interaction. In the early previtellogenic follicles, the plasma membrane of the follicle cells lies in close contact with the plasma membrane of ...
Villecco, Evelina I.   +3 more
openaire   +3 more sources

Metamorfosis del aparato digestivo de larvas carnívoras de Ceratophrys cranwelli (Anura: leptodactylidae)

open access: yesCanadian Journal of Zoology, 2001
Las larvas carnívoras de Ceratophrys cranwelli presentan un tubo digestivo más corto que la mayoría de las larvas de anuros, tiene 6 veces la longitud del cuerpo del renacuajo y se caracteriza también por tener un estómago larval. El presente trabajo tiene como objetivo el determinar el grado de transformaciones en la cavidad bucofaríngea y tubo ...
C.M. Schalk, L.A. Fitzgerald
openaire   +2 more sources

Morphology and feeding in tadpoles of Ceratophrys cranwelli (Anura: Leptodactylidae)

open access: yesActa Zoologica, 2005
AbstractThis paper provides data on the skeleton, musculature, buccal apparatus, buccopharyngeal cavity and diet of Ceratophrys cranwelli tadpoles, and attempts to contribute to the knowledge of relations between morphology and ecology in anuran larvae.
openaire   +2 more sources

Underwater sound emission as part of an antipredator mechanism in Ceratophrys cranwelli tadpoles

open access: yesActa Zoologica, 2013
AbstractWe report the emission of underwater sounds in the tadpoles of a second member of the family Ceratophryidae, Ceratophrys cranwelli. These tadpoles produce a short metallic‐like sound, which consists of short trains of pulses at Gosner stages 25, 28, and 37.
Salgado Costa, Carolina   +5 more
openaire   +2 more sources

Age Structure and Size Variation in Three Closely Related Species of Casque‐Headed Frogs of the Genus Trachycephalus (Hylidae: Lophyohylini)

open access: yesActa Zoologica, Volume 106, Issue 4, Page 485-492, October 2025.
ABSTRACT Parreira. I.P. 2025. Age structure and size variation in three closely related species of casque‐headed frogs of the genus Trachycephalus (Hylidae: Lophyohylini)—Acta zoologica (Estocolmo). This study provides insights into longevity, sexual maturity and growth curves in closely related casque‐headed treefrogs distributed across distinct ...
Isabella Parreira   +4 more
wiley   +1 more source

Motivations behind wild animal consumption in social media in Mexico: A case study

open access: yesPeople and Nature, Volume 6, Issue 2, Page 676-686, April 2024.
Abstract Wildlife trade is a worldwide threat to biodiversity. It is a complex problem, and to deal with it, one must analyse its constituting factors, some of which are specific to certain geographic areas. Although Mexican laws have prohibited selling wild products, Mexico is still both a source and consumer of exotic wildlife; however, there is ...
Marielise Gutiérrez‐Ibarra   +4 more
wiley   +1 more source

Description and shaping factors of diet and feeding ecology of neotropical tadpoles: A case study and a comprehensive review

open access: yesAustral Ecology, Volume 49, Issue 1, January 2024.
We performed a systematic review on the available literature on in situ studies of neotropical tadpole diets focusing on diet composition and its sources of variation. Such studies approached in just a few instances the effects of seasonality, developmental stage and food selectivity on diet composition, but the available data indicate none of these ...
Iara Matias Gonçalves   +4 more
wiley   +1 more source

Descrição e fatores modeladores da dieta e ecologia da alimentação de girinos neotropicais: Um estudo de caso e uma revisão abrangente

open access: yesAustral Ecology, Volume 49, Issue 1, January 2024.
Resumo Os girinos são componentes importantes de muitas teias alimentares aquáticas, pois influenciam as populações em outros níveis tróficos e, consequentemente, a transferência de energia entre os ecossistemas aquáticos e terrestres. O que os girinos consomem é um fator chave para suas funções ecológicas. As assembleias de anuros neotropicais incluem
Iara Matias Gonçalves   +4 more
wiley   +1 more source

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