Results 171 to 180 of about 3,514 (204)

Persistence of an amphibian ranavirus in aquatic communities

Diseases of Aquatic Organisms, 2014
Host-parasite dynamics can be strongly influenced by interactions with other members of the biotic community, particularly when the parasite spends some fraction of its life in the environment unprotected by its host. Ranaviruses-often lethal viruses of cold-blooded vertebrate hosts transmitted by direct contact, and via water and fomites-offer an ...
A F, Johnson, J L, Brunner
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Dose and host characteristics influence virulence of ranavirus infections

Oecologia, 2005
Parasites play a prominent role in the ecology, evolution, and more recently, conservation of many organisms. For example, emerging infectious diseases, including a group of lethal ranaviruses, are associated with the declines and extinctions of amphibians around the world. An increasingly important basic and applied question is: what controls parasite
Jesse L, Brunner, Kathryn, Richards, James P, Collins   +2 more
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Ranavirus in Nederland

Vakblad natuur bos landschap, 2016
Sinds 2010 weten we zeker dat ranavirus in Nederland voorkomt. Het virus tast complete populaties vissen, reptielen en amfibieën. We weten nog niet wat ranavirus met de populaties koudbloedigen zal doen: is het een tijdelijk dip waar ze weer overheen komen, of is het een langdurige afname?
Montizaan, Margriet, Spitzen, Annemarieke   +1 more
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Widespread Occurrence of Ranavirus in Pond-Breeding Amphibian Populations

EcoHealth, 2011
Ranaviruses are an emerging threat for many amphibian populations, yet their distribution in amphibian communities and the association of infection with possible stressors and species is not fully understood due to historically sparse surveillance. Agricultural practices that reduce the water quality of amphibian breeding habitats (e.g., cattle access ...
Jason T, Hoverman, Matthew J, Gray, Debra L, Miller, Nathan A, Haislip   +3 more
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Discovery of Wild Amphibians Infected with Ranavirus in Brazil

Journal of Wildlife Diseases, 2019
Ranavirus is a double-stranded DNA virus associated with amphibian, fish and reptile die-offs worldwide. International trade of live animals farmed for human consumption, such as the American bullfrog (Lithobates catesbeianus), plays a key role in spreading the pathogen. In Brazil, ranavirus has only been reported in captive bullfrog farms.
Joice, Ruggeri, Luisa P, Ribeiro, Mariana R, Pontes, Carlos, Toffolo, Marcelo, Candido, Mateus M, Carriero, Noeli, Zanella, Ricardo L M, Sousa, Luís Felipe, Toledo   +8 more
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Ranavirus could facilitate local extinction of rare amphibian species

Oecologia, 2016
There is growing evidence that pathogens play a role in population declines and species extinctions. For small populations, disease-induced extinction may be especially probable. We estimated the susceptibility of two amphibian species of conservation concern (the dusky gopher frog [Lithobates sevosus] and boreal toad [Anaxyrus boreas boreas]) to an ...
Julia E, Earl, Jordan C, Chaney, William B, Sutton, Carson E, Lillard, Andrew J, Kouba, Cecilia, Langhorne, Jessi, Krebs, Rebecca P, Wilkes, Rachel D, Hill, Debra L, Miller, Matthew J, Gray   +10 more
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ISOLATION OF A RANAVIRUS FROM A GECKO (UROPLATUS FIMBRIATUS)

Journal of Zoo and Wildlife Medicine, 2005
A virus was isolated from the liver and stomach of a leaf-tailed gecko (Uroplatus fimbriatus) with granulomatous lesions on the tongue and hepatitis. The virus was identified as an iridovirus on the basis of morphology by electron microscopy, restriction endonuclease assay, and sequencing of a large portion of the major capsid protein gene. Comparative
Rachel E, Marschang, Sabine, Braun, Paul, Becher   +2 more
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Landscape setting and risk of Ranavirus mortality events

Biological Conservation, 2008
Abstract Amphibian mortality events in relatively pristine and protected settings cause particular concern because they may be linked to larger scale, off-site factors that interact with local landscape features. We used logistic regression and model selection criterion (QAIC c ) to identify landscape features key to predicting disease incidence in ...
Megan K. Gahl, Aram J.K. Calhoun
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Antiviral effects of rhein on largemouth bass ranavirus (LMBRaV)

Fish & Shellfish Immunology
Largemouth bass ranavirus (LMBRaV), also known as largemouth bass virus (LMBV), is a highly damaging viral pathogen that causes widespread mortality in cultured largemouth bass and poses a significant threat to the farming industry in China. However, there is a paucity of effective preventive methods for this disease by LMBRaV. Research has established
Mengmeng, Chen, Mingyang, Xue, Yong, Zhou, Chen, Xu, Nan, Jiang, Yuding, Fan, Yan, Meng   +6 more
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Evaluation and Application of Andrographolide Against Largemouth Bass Ranavirus

Fish & Shellfish Immunology
It is well-established that Largemouth bass ranavirus (LMBRaV) induces viral ulcerative syndrome, a highly transmissible and lethal viral disease afflicting largemouth bass aquaculture. Given the urgent need for available prevention and control methods, this study evaluated the antiviral activities of fifteen naturally occurring compounds derived from ...
Jingya Li, Mingyang Xue, Chen Xu, Nan Jiang, Yiqun Li, Yuding Fan, Yong Zhou, Yan Meng   +7 more
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