Results 1 to 10 of about 10,115 (169)
Larval Adaptation to Salinity Shock in Cane Toads (Rhinella marina) From Coastal French Guiana [PDF]
Ecology and EvolutionMany habitats not only differ in mean conditions but also in the degree to which these conditions fluctuate through time. Therefore, local adaptation to both mean abiotic conditions and habitat variability can enhance organismal viability.
Simon Ducatez +2 more
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Bioaccumulation, Ecotoxicity, and Microbial Responses in Hoplobatrachus rugulosus Tadpoles Following Co-Exposure to Imidacloprid and Microplastics [PDF]
AnimalsAgricultural organic pollutants have been identified as a key factor contributing to amphibian population decline, particularly during early developmental stages when tadpoles are frequently exposed to neonicotinoids (NEOs) and microplastics (MPs).
Xinyu Hu +8 more
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PLoS Biology, 2022 The trade-off between offspring size and number is central to life history strategies. Both the evolutionary gain of parental care or more favorable habitats for offspring development are predicted to result in fewer, larger offspring.
Andrew I Furness +2 more
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Polyculture of bullfrog tadpoles and Nile tilapia fry
Anais da Academia Brasileira de Ciências, 2021 Two experiments were carried out to test better stocking proportion according to animal size for tilapia (Oreochromis niloticus) and tadpole (Lithobates catesbeianus).
CRISTIANE SARTURI +7 more
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Is hypoxia a stressor to American bullfrog tadpoles? [PDF]
Pesquisa Veterinária Brasileira, 2014 The aim of this study was to evaluate alterations to the physiological profile of cortisol in pro-metamorphose phase tadpoles of Lithobates catesbeianus exposed to hypoxia stressor in a capture experiment and in a crowding experiment.
Patricia C. Teixeira +5 more
doaj +4 more sources
Current Research in Physiology, 2023 The present study clarified changes in physiological sensitivities of cultured Nieuwkoop and Faber stage 57 Xenopus laevis tadpole-organ-heart exposed to thyroxine (T4) using acetylcholine (ACh), norepinephrine (NE) and atropine.
Hideki Hanada +4 more
doaj +1 more source
Evaluation of the Effect of Ecological Factors on Cannibalism in Pelophylax bedriagae (Pallas, 1771) (Amphibia: Anura) [PDF]
Iranian Journal of Animal Biosystematics, 2023 Marsh frog, Pelophylax bedriagae tadpoles habituate in temporary wetlands where intraspecific aggression has been observed. In this study, we examined the independent and interactive effects of predator cues, water level and density on head width size ...
Fatemeh Amjadian +2 more
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Journal of Developmental Biology, 2023 Amphibian skin is a particularly complex organ that is primarily responsible for respiration, osmoregulation, thermoregulation, defense, water absorption, and communication.
Esra Akat Çömden +2 more
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The Tadpole Pupil: Case Series With Review of the Literature and New Considerations
Frontiers in Neurology, 2019 Tadpole pupil is a rare phenomenon in which segmental spasm of the iris dilator muscle results in a tadpole-shaped pupil. The pupillary distortion is usually unilateral, lasts several minutes, and can recur in clusters.
Morgane Udry +3 more
doaj +1 more source
Influence of 50-Hz Electromagnetic Field on Anurian (Xenopus laevis) Metamorphosis
The Scientific World Journal, 2004 In this study, we show the effect of a 1-mT magnetic field AC at 50 Hz on Xenopus laevis tadpole populations. In the course of a 65-day exposure to the field, tadpole survival showed a small, but significant, decrease (p < 0.0004), together with a ...
S. Grimaldi +5 more
doaj +1 more source