Results 51 to 60 of about 3,740 (206)

Diversidade de anuros na Floresta Nacional de Chapecó, Floresta Atlântica do sul do Brasil [PDF]

open access: yes, 2008
The Atlantic Forest is considered one of the world's biological diversity hotspots but is nevertheless increasingly threatened with the rapid destruction and fragmentation of its natural areas. In the state of Santa Catarina, southern Brazil, remnants of
FORTES, Vanessa Barbisan   +1 more
core   +1 more source

Amphibian chytridiomycosis : a review with focus on fungus-host interactions [PDF]

open access: yes, 2015
Amphibian declines and extinctions are emblematic for the current sixth mass extinction event. Infectious drivers of these declines include the recently emerged fungal pathogens Batrachochytrium dendrobatidis and Batrachochytrium salamandrivorans ...
Haesebrouck, Freddy   +3 more
core   +4 more sources

Toxicity of Four Common Environmental Chemicals Across Caenorhabditis elegans Life Stages Supporting the One Health Concept

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Pesticides and pharmaceuticals are among the most common chemical groups in waterbodies and soils, and their universal distribution raises concerns about potential adverse effects on nontarget organisms and humans. Reproductive output disruption is of particular concern, as it transposes effects from the individual to the next generations at ...
Fábio Campos   +3 more
wiley   +1 more source

Do Lithobates catesbeianus tadpoles acclimatise to sub-lethal copper?

open access: yesInternational Journal of Environment and Health, 2010
The aim of this work was to study the acute effects of short-term exposure (96 hours) to sub-lethal concentrations of copper (2 and 3 mg L−1) on ecotoxicological stress biomarkers in the aquatic stages of Lithobates catesbeianus (syn. Rana catesbeiana) larvae. To this end, the effects of copper on brain acetylcholinesterase, liver and gill catalase and
Natalia Alejandra Ossana   +3 more
openaire   +1 more source

Histopathological alterations in bullfrog juveniles fed commercial rations of different crude protein levels Alterações histopatológicas em imagos de rã-touro alimentados com diferentes rações comerciais

open access: yesRevista Brasileira de Zootecnia, 2009
The relationship between the quality of dietary crude protein and health of bullfrog juveniles (Lithobates catesbeianus) was evaluated by necropsy and histopathological examination of animals.
José Teixeira de Seixas Filho   +5 more
doaj   +1 more source

Illegal trade on non-native amphibians and reptiles in southeast Brazil: the status of e-commerce [PDF]

open access: yes, 2012
Illegal trade on non-native amphibians and reptiles in southeast Brazil: the status of e ...
André Lincoln Barroso de Magalhães   +1 more
core   +2 more sources

‘Using anuran community diversity and Pseudacris crucifer to predict landscape quality across a land use gradient'

open access: yesWildlife Biology, EarlyView.
As human‐modified landscape and climate changes proliferate, maintaining biodiversity and understanding the function and quality of available habitat is imperative. As anurans (frogs/toads) such as Pseudacris crucifer, can be an indicator species of habitat quality and ecosystem productivity, studying the anuran community in a mixed‐land use region ...
Brian C. Kron, Karen V. Root
wiley   +1 more source

Distribution Status of Invasive Alien Species in the Estuarine Wetlands in East and South Coast, Korea [PDF]

open access: yesGeo Data
Based on the results of survey on estuarine ecosystem conducted from 2021 to 2023, this study analyzed the distribution pattern of invasive alien species. A total of six invasive alien species (Micropterus salmoides [M. salmoides], Lepomis macrochirus [L.
Yeounsu Chu   +2 more
doaj   +1 more source

Activity Level-Predation Risk Tradeoff in a Tadpole Guild: Implications for Community Organization Along the Hydroperiod Gradient [PDF]

open access: yes, 2020
Increasing activity levels permit greater food intake for use towards growth and reproduction, consequently increasing predation risk via increased detection.
Saenz, Daniel   +2 more
core   +1 more source

Effects of complex soundscapes on the occurrence of Anaxipha pallidula in isolated green spaces in Tokyo

open access: yesWildlife Biology, EarlyView.
Urban green spaces experience a mix of natural and anthropogenic noises, which could disrupt the vocal communication of several species. This study investigated how such complex soundscapes affect the occurrence of Anaxipha pallidula, which communicates through calls, focusing on both sound level and quality.
Hiroki Mori, Takeshi Osawa
wiley   +1 more source

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