Results 21 to 30 of about 3,717 (132)
Non-O1/O139 Vibrio cholerae causes severe intestinal disease in bullfrogs (Rana catesbeiana)
Bullfrogs (Rana catesbeiana) are amphibians with high economic value, but in recent years, bullfrog farming has encountered serious threats of bacterial diseases, and the “bullfrog economy” is facing a continuous decline.
Wenyu Liao +9 more
doaj +1 more source
Measuring stabilized heart rates in the prairie lizard, a small vertebrate ectotherm
Abstract The ability to accurately measure heart rates is vital for studying the ecological and evolutionary pressures on animals because cardiovascular regulation is associated with key physiological responses to environmental change. Heart rates, especially in ectotherms, are influenced by multiple factors over both the short and long term, including
Owen Conroy +4 more
wiley +1 more source
Las enfermedades bacterianas son responsables de grandes pérdidas económicas en la acuicultura en todo el mundo, y las ranas son susceptibles a las bacterias Gram negativas causantes de la septicemia.
María Soledad Morales–Covarrubias +6 more
doaj +1 more source
Positive effects of nonnative invasive Phragmites australis on larval bullfrogs. [PDF]
BACKGROUND: Nonnative Phragmites australis (common reed) is one of the most intensively researched and managed invasive plant species in the United States, yet as with many invasive species, our ability to predict, control or understand the consequences ...
Mary Alta Rogalski, David Kiernan Skelly
doaj +1 more source
Antipredatory Strategies of Anurans: An Updated Conceptual Review
To unravel the evolutionary dynamics of predator–prey interactions, we propose an updated, three‐tiered classification of anuran antipredatory strategies. By mapping non‐behavioral, individual, and group defenses across five functional phases, this integrative framework introduces the concept of synergetic coupling.
Ubiratã Ferreira Souza +3 more
wiley +1 more source
O objetivo deste trabalho foi avaliar a atividade da amilase no quimo da rã-touro, Rana catesbeiana Shaw 1802 (3,6 a 200 g). Oitenta e sete animais foram distribuídos em baias-testes com temperatura e fotoperíodo controlados.
Luís Gustavo Tavares Braga +3 more
doaj +1 more source
Introduced bullfrog facilitates pathogen invasion in the western United States.
Batrachochytrium dendrobatidis (Bd), a causal agent of the amphibian fungal skin disease chytridiomycosis, has been implicated in the decline and extinction of over 200 species worldwide since the 1970s.
Tiffany A Yap +3 more
doaj +1 more source
Avaliação de métodos de coleta de fezes para determinação da digestibilidade protéica em rã-touro (Rana catesbeiana) [PDF]
O presente trabalho teve como objetivo avaliar diferentes metodologias de coleta de fezes para determinação da digestibilidade protéica de alimentos para a rã-touro (Rana catesbeiana). As metodologias estudadas foram o método de coleta total das fezes; o
José Luiz Pedreira Mouriño +1 more
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Generation Length: Often Ignored and Sometimes Misunderstood
ABSTRACT Traditional mathematical models of population genetics have generally assumed discrete generations, but most species have overlapping generations. It is necessary to estimate generation length with overlapping generations for purposes of comparison with discrete‐generation models.
Fred W. Allendorf, Nils Ryman
wiley +1 more source
Se analiza el efecto que la introducción y el cultivo de la rana toro (Rana catesbeiana) ha tenido en el ecosistema y la biodiversidad en México. Se recomienda el cultivo de especies nativas para sustituir a la rana toro.
Gustavo Casas Andreu +2 more
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