Results 131 to 140 of about 869 (167)

Potential Distribution of the American Bullfrog (Lithobates Catesbeianus) in Ecuador

South American Journal of Herpetology, 2012
ABSTRACT. The American bullfrog (Lithobates catesbeianus) is a native species from eastern North America that was introduced to Ecuador in 1985. We built two models in Maxent, (1) one model with native records and, (2) one model with native and invasive records, to provide an approximate map of the potential geographical distribution for this species ...
Carlos A. Iñiguez, Felipe J. Morejón
exaly   +2 more sources

Toxicity of Waterborne Copper in Premetamorphic Tadpoles of Lithobates catesbeianus (Shaw, 1802)

Bulletin of Environmental Contamination and Toxicology, 2010
Toxicity parameters of Copper to pre-metamorphic larvae of Lithobates catesbeianus were evaluated in laboratory conditions. The acute toxicity (as LC-50 96 h) was 3.96 mg Cu(2+) L(-1) (95% confidence interval: 3.21-4.89); the bioconcentration of the metal after 96 h exposure followed an exponential increase.
Gisela L Poletta, Marta D Mudry, Alfredo Salibián   +2 more
exaly   +3 more sources

American bullfrog Lithobates catesbeianus (Shaw, 1802) invasion in Argentina

Biological Invasions, 2009
The American bullfrog (Lithobates catesbeianus) has been introduced throughout the world over the past two centuries. This taxa is a potentially devastating invader because of its large size, prolific reproductive output, and broad ecological niche. Consequently, the extent of this ongoing biological invasion is an increasing conservation concern.
Dario Cardozo, Mauricio Sebastian Akmentins   +1 more
exaly   +2 more sources

Localization of hematopoietic cells in the bullfrog (Lithobates catesbeianus)

Cell and Tissue Research, 2009
Amphibians represent the first phylogenetic group to possess hematopoietic bone marrow. However, adult amphibian hematopoiesis has only been described in a few species and with conflicting data. Bone marrow, kidney, spleen, liver, gut, stomach, lung, tegument, and heart were therefore collected from adult Lithobates catesbeianus and investigated by ...
Pedro Paulo, de Abreu Manso, Lycia, de Brito-Gitirana, Marcelo, Pelajo-Machado   +2 more
openaire   +2 more sources

The genotoxicity and cytotoxicity of tannery effluent in bullfrog (Lithobates catesbeianus)

Chemosphere, 2017
Some of the most polluting activities occur in bovine skin processing. Tannery generates effluents containing high concentrations of heavy metals and organic compounds. The phases composing the leather production process generate a large volume of tannery effluents that are often discarded in aquatic environments without any previous treatment. However,
Mateus Flores, Montalvão, Joyce Moreira, de Souza, Abraão Tiago Batista, Guimarães, Ivandilson Pessoa Pinto, de Menezes, André Luis da Silva, Castro, Aline Sueli de Lima, Rodrigues, Guilherme, Malafaia   +6 more
openaire   +2 more sources

Glycosaminoglycans and glycoconjugates in the adult anuran integument (Lithobates catesbeianus)

Micron, 2010
Glycosaminoglycans (GAGs) from the integument of Lithobates catesbeianus were biochemically characterized and histochemically localized. Moreover, carbohydrate distribution was investigated using conventional and lectin histochemistry at light microscopy. Hyaluronan (HA), dermatan sulfate (DS) and a heparanoid were found in the integument. Sulfated and
Adriana Alves, Pelli, Leonardo Paes, Cinelli, Paulo Antonio Souza, Mourão, Lycia, de Brito-Gitirana   +3 more
openaire   +2 more sources

CARDIOVASCULAR EFFECTS OF ALFAXALONE AND PROPOFOL IN THE BULLFROG,LITHOBATES CATESBEIANUS

Journal of Zoo and Wildlife Medicine, 2018
Alfaxalone is becoming a popular anesthetic for nonmammalian vertebrates, but the physiological effects of its administration remain largely unknown in these taxa. Therefore, the cardiovascular responses to a clinically relevant dose of alfaxalone (10 mg/kg) are reported in the bullfrog ( Lithobates catesbeianus), following intramuscular (IM) and ...
Williams, Catherine; id_orcid 0000-0002-4839-6134, Alstrup, Aage Kristian Olsen; id_orcid 0000-0002-0084-9122, Bertelsen, Mads, Jensen, Heidi Meldgaard, Leite, Cleo A.C., Wang, Tobias   +5 more
openaire   +2 more sources

Hepatic and blood alterations in Lithobates catesbeianus tadpoles exposed to sulfamethoxazole and oxytetracycline

Chemosphere, 2022
In this study the effects of environmentally realistic concentrations of the antibiotics sulfamethoxazole (SMX) and oxytetracyclyne (OTC) on Lithobates catesbeianus tadpoles were evaluated, through the analyzes of the frequencies of micronucleus and nuclear abnormalities in erythrocytes, alterations in leucocytes, liver histopathology, and changes in ...
Camila Fatima, Rutkoski, Suelen Cristina, Grott, Nicole Grasmuk, Israel, Francisco Estevão, Carneiro, Fernando, de Campos Guerreiro, Sabrina, Santos, Priscila Aparecida, Horn, Amanda Alves, Trentini, Elizia, Barbosa da Silva, Claudia Almeida, Coelho de Albuquerque, Thiago Caique, Alves, Eduardo, Alves de Almeida   +11 more
openaire   +2 more sources

The complete mitochondrial genome ofLithobates catesbeianus(Anura: Ranidae)

Mitochondrial DNA, 2013
The complete mitochondrial genome of Lithobates catesbeianus (Anura: Ranidae) is sequenced to analyze the gene arrangement. It is a circular molecule of 18,241 bp in length including 37 genes typically found in other frogs. The AT content of the overall base composition of L. catesbeianus is 59.9%.
Yubo, Lin, Bofang, Tao, Xindong, Fang, Tingting, Wang, Jiayong, Zhang   +4 more
openaire   +2 more sources

Combating adult invasive American bullfrog Lithobates catesbeianus

European Journal of Wildlife Research, 2014
American bullfrog Lithobates catesbeianus is considered as one of the world’s worst alien invasive species. Currently, the species is present over almost all continents and is suspected to cause substantial ecological damage. Knowledge about its population density, as well as catchability of the species with commonly used sampling gear, is very useful ...
Gerald Louette, Sander Devisscher, Tim Adriaens   +2 more
openaire   +1 more source