Mostrando 321 - 340 Resultados de 3,549 Para Buscar '"amphibian"', tiempo de consulta: 0.38s Limitar resultados
  1. 321
    “…Understanding factors that influence host–pathogen interactions is key to predicting outbreaks in natural systems experiencing environmental change. Many amphibian population declines have been attributed to an amphibian chytrid fungus, Batrachochytrium dendrobatidis (Bd). …”
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  2. 322
    “…Amphibian and bird karyotypes typically have a complex organization, which makes them difficult for standard cytogenetic analysis. …”
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  3. 323
    por Matsumoto, Ryoko, Evans, Susan E.
    Publicado 2018
    “…Albanerpetontids are an enigmatic fossil amphibian group known from deposits of Middle Jurassic to Pliocene age. …”
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  7. 327
    por Lukas, Paul, Olsson, Lennart
    Publicado 2018
    “…We used Xenopus laevis and Ambystoma mexicanum to further investigate the function of bapx1 in amphibians. Bapx1 expression levels were upregulated through the use of Ly-294,002 and we investigated the potential consequences of the enhanced bapx1 expression in amphibians to test the hypothesized joint inducing function of bapx1. …”
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  8. 328
    “…Our results indicate that habitat and time of year influence exposure and accumulation of pesticides in amphibians. Our study illustrates the feasibility of quantifying the amphibian exposome to interpret the role of habitat use in pesticide accumulation in frogs to better manage amphibians in agricultural landscapes.…”
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  9. 329
    por Greenberg, Dan A., Mooers, Arne Ø.
    Publicado 2017
    “…This clustered threat in rapidly diversifying amphibian genera means that protecting a small number of species can achieve large gains in preserving amphibian phylogenetic diversity. …”
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  10. 330
    “…Amphibians are one of the most threatened groups of species, facing stressors ranging from habitat degradation and pollution to disease and overexploitation. …”
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  11. 331
    “…As with other subtropical islands, Taiwan faces constant risk of biological invasions and is currently ranked as one of the countries most affected by invasive amphibians and reptiles. In this paper, a comprehensive checklist of all known exotic amphibians and reptiles is provided, including twelve species which have successfully colonized Taiwan and six species with a controversial status. …”
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  12. 332
    “…BACKGROUND: Species richness and composition pattern of amphibians along elevation gradients in eastern Nepal Himalaya are rarely investigated. …”
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  13. 333
    “…This enigmatic order of amphibians are very distinct phenotypically from other extant amphibians and likely from the ancestor of Lissamphibia, but little to nothing is known about the molecular changes underpinning their radiation. …”
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  14. 334
    “…We examined the effects on two kinds of infrastructure, gravel tracks and paved roads, on the dispersal of an endangered amphibian, the yellow-bellied toad (Bombina variegata). …”
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  15. 335
    por Carlsson, Gunnar
    Publicado 2019
    “…It is well-known that the metamorphosis process in amphibians is dependent on thyroid hormones. Laboratory studies have shown that several environmental contaminants can affect the function of thyroid hormones leading to alterations in the amphibian metamorphosis. …”
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    “…Viruses in the Iridoviridae family, such as those in the Ranavirus genus, can infect amphibian species without resulting in mortality or clinical signs, and they can also infect other hosts than amphibian species. …”
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  18. 338
    “…Shifts in temperature might especially affect amphibians, a group with populations that have been challenged by several pathogens. …”
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