Results 71 to 80 of about 2,941 (182)

Effect of Sciatic Nerve Transection on acetylcholinesterase activity in spinal cord and skeletal muscles of the bullfrog Lithobates catesbeianus

open access: yesBrazilian Journal of Biology, 2017
Sciatic nerve transection (SNT), a model for studying neuropathic pain, mimics the clinical symptoms of “phantom limb”, a pain condition that arises in humans after amputation or transverse spinal lesions.
A. Kroth   +5 more
doaj   +1 more source

Seasonal Emergence and Habitat Pond Use of Invasive American Bullfrog, Lithobates catesbeianus, on Sado Island, Japan

open access: yesCurrent Herpetology
: The American bullfrog Lithobates catesbeianus is a well-known invasive alien species recorded in over 40 countries and islands. It is necessary to elucidate their seasonal emergence and habitat water body characteristics for implementing efficient ...
Kiyoto Sawada, T. Kamijo
semanticscholar   +1 more source

Detection and succession properties of forested vernal pools with eDNA metabarcoding

open access: yesEcological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.
We examined the capacity of environmental DNA metabarcoding for studying biodiversity of forested vernal pools, using multiple assays to investigate different eukaryotic communities over space and time. Our results suggest that metabarcoding can serve as a complementary tool for ‘scaling up’ vernal pool biodiversity monitoring, illuminating ecological ...
Harrison B. Goldspiel   +5 more
wiley   +1 more source

Amphibian Strategies Against Attacks by Flies: Host‐Specificity and Threats

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
Species interactions between Diptera flies and amphibians play a significant role in tropical ecosystems, but their ecology and evolution remain understudied. This review explores the costs flies impose on amphibians, such as pathogen transmission and disruption of communication systems, and highlights the evolutionary strategies employed by both ...
Leonardo Leite Ferraz de Campos   +3 more
wiley   +1 more source

Evaluating the Use of Environmental DNA as a Method to Determine Occupancy and Distribution of Coeur d'Alene Salamanders in Montana

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
The purpose of this project was to evaluate the efficacy of eDNA sampling to determine occupancy of Coeur d'Alene salamanders, an “imperiled” species in Montana. Previous methods used to identify occupied sites were haphazard with no measure of detection probability. Due to the unique habitat used by these salamanders (seeps and waterfall spray zones),
Jessica A. Coltrane   +5 more
wiley   +1 more source

Environmental DNA (eDNA) Technology in Biodiversity and Ecosystem Health Research: Advances and Prospects

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
This review synthesizes over 15 years of advancements in eDNA technology by systematizing standardized guidelines for sampling, extraction, and bioinformatics, thereby enhancing the reproducibility of eDNA‐based research. It highlights eDNA's transformative role in noninvasively detecting rare, endangered, and invasive species, as well as its value in ...
Shuwen Wu   +8 more
wiley   +1 more source

The “regime shift extinctions” hypothesis and mass extinction of waterbirds in Hawaiʻi

open access: yesEcosphere, Volume 17, Issue 1, January 2026.
Abstract Studies of biodiversity loss commonly imply that species extinctions occurred as a direct result of initial human arrival and thus are attributable to stewardship failures of Indigenous Peoples. However, recent studies have suggested this assumption is not supported by the evidence, prompting a global reevaluation of existing assumptions.
Kristen C. Harmon   +2 more
wiley   +1 more source

Profile of cortisol, glycaemia, and blood parameters of American Bullfrog tadpoles Lithobates catesbeianus exposed to density and hypoxia stressors Perfil de cortisol, glicemia, e parâmetros sanguineos de girinos de rã-touro Lithobates catesbeianus expostos a diferentes densidades e hipóxia

open access: yesPesquisa Veterinária Brasileira, 2012
The aim of this study was to evaluate alterations to the physiological profile (cortisol, glycaemia, and blood parameters) of Lithobates catesbeianus caused by the stressors density and hypoxia.
Patricia C. Teixeira   +7 more
doaj  

Introduced wild pigs affect the foraging ecology of a native predator as both prey and scavenger

open access: yesWildlife Biology, Volume 2026, Issue 1, January 2026.
Introduced species can disrupt trophic interactions by acting as novel predators, prey, or scavengers. Predicting the impacts of these disruptions can be integral to the conservation of native species and the maintenance of ecological function, but is challenging, especially for species involved in multiple trophic interactions.
Mitchell A. Parsons   +4 more
wiley   +1 more source

Policy Recommendation on the Restriction on Amphibian Trade Toward the Republic of Korea

open access: yesFrontiers in Environmental Science, 2020
Amphibian diseases and invasive amphibian species are both generally introduced through the wildlife trade, either for human consumption or for the pet trade. However, adequate regulations can prevent such introductions.
Amaël Borzée   +4 more
doaj   +1 more source

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