Results 21 to 30 of about 176 (108)
Revista de Biología Tropical, 2008 The nematological fauna of most anuran species from Corrientes province, north of Argentina; has not been studied. We report for the first time the nematode species found in Rhinella schneideri and Scinax acuminatus.
Cynthya Elizabeth González +1 more
doaj +8 more sources
Tadpoles of Rhinella schneideri as reservoirs of trichodinids in continental aquaculture [PDF]
Aquaculture, 2018 Abstract Restricted contact between wild amphibians and cultured fish facilitates the transmission of various diseases, including parasitic diseases. The trichodinids are one of the most important ectoparasites in fish farming in continental aquaculture, as they cause significant lesions in the integument and in the gills of the animals, causing ...
Pala, G. +4 more
openaire +2 more sources
Skin and poison glands in toads (Rhinella) and their role in defence and water balance
Acta Zoologica, Volume 103, Issue 1, Page 112-128, January 2022., 2022 Abstract Toads are considered poisonous animals since they have a passive mode of defence relying on cutaneous poison glands, differently from venomous animals who can inject venom in predators/aggressors or prey. Toads of Rhinella marina group are generally large and have a broad distribution in South America, inhabiting a wide range of environments ...
Pedro Luiz Mailho‐Fontana +4 more
wiley +1 more source
Platyhelminthes, Trematoda, Digenea Carus, 1863: Distribution extension in Argentina and new Anura and Ophidia hosts [PDF]
Check List, 2010 The aim of this paper is to increase the knowledge on the diversity of digenean parasites in ophidians andanurans from northeastern Argentina. Specimens of the snakes Eunectes notaeus, Hydrodynastes gigas, Micrurus corallinus,Philodryas sp.
Lunaschi, L. I., Drago, F. B.
doaj +4 more sources
Flutamide effects on morphology of reproductive organs and liver of Neotropical Anura, Rhinella schneideri [PDF]
Aquatic Toxicology, 2016 Water contamination is one of the factors influencing the decline of amphibians. Flutamide is an antiandrogenic medicine that occurs as water contaminant. This compound especially affects the reproductive organs, but it can also show hepatotoxic effects.
de Gregorio, Lara S. +3 more
openaire +3 more sources
Niche overlap and resource partitioning among five sympatric bufonids (Anura, Bufonidae) from northeastern Argentina [PDF]
Phyllomedusa: Journal of Herpetology, 2009 The niche overlap and resource partitioning were analyzed for five sympatric bufonids from Northeastern Argentina: Rhinella schneideri, R. bergi, R. fernandezae, R. granulosa, and Melanophryniscus cupreuscapularis.
Marta I. Duré +2 more
doaj +2 more sources
Morphological and histochemical studies of Bidder’s organ inRhinella schneideri(Amphibia: Anura) males [PDF]
Italian Journal of Zoology, 2015 AbstractBufonids have an organ that produces female germ cells in both sexes, known as the Bidder’s organ (BO). In males, BO is located in the anterior pole of the testis and it has been compared to a rudimentary ovary. It has been demonstrated that in some species the bidderian follicles can accumulate vitellogenin in males, while in other species ...
Silberschmidt Freitas, Juliane +2 more
openaire +2 more sources
Baroreflex regulation affects ventilation in the cururu toad R hinella schneideri [PDF]
Journal of Experimental Biology, 2016 ABSTRACT Anurans regulate short-term oscillations in blood pressure through changes in heart rate (fH), vascular resistance and lymphatic fH. Lung ventilation in anurans is linked to blood volume homeostasis by facilitating lymph return to the cardiovascular system.
Lucas A. Zena +3 more
openaire +4 more sources
Temperature effects on baroreflex control of heart rate in the toad, Rhinella schneideri
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2015 For an adequate blood supply to support metabolic demands, vertebrates regulate blood pressure to maintain sufficient perfusion to avoid ischemia and other tissue damage like edema. Using a pharmacological approach (phenylephrine and sodium nitroprusside) we investigated baroreflex sensitivity at 15, 25, and 30°C in toads Rhinella schneideri ...
Zena, Lucas A. +2 more
openaire +4 more sources
Revista de Biología Tropical, 2021 Introduction: Rhinella schneideri is a toad widely distributed in South America and its poison is characterized by inducing cardiotoxicity and neurotoxicity. Objective: In this work, we investigated pharmacological strategies to attenuate the peripheral neurotoxicity induced by R. schneideri poison in avian neuromuscular preparation.
Yoko Oshima-Franco +7 more
openaire +4 more sources