Results 51 to 60 of about 10,107 (221)

DETERMINACIÓN DE LA DL50 DE LA SAL COMUN (NACL) EN RENACUAJOS DE RANA CATESBEIANA (SHAW 1810) (ANURAN: RANIDAE), COMO TRATAMIENTO PROFILÁCTICO EN LA ACTIVIDAD RANÍCOLA

open access: yesEcosistemas y Recursos Agropecuarios, 2014
Para obtener el articulo completo pueden contactar al editor de la revista Ecosistemas y Recursos Agropecuarios en el siguiente correo era@ujat.mx y se les enviará sin ningún costo.
Raúl Sima Álvarez   +2 more
doaj   +1 more source

Time domains of the hypoxic ventilatory response in ectothermic vertebrates [PDF]

open access: yes, 2011
Over a decade has passed since Powell et al. (Respir Physiol 112:123-134, 1998) described and defined the time domains of the hypoxic ventilatory response (HVR) in adult mammals.
Cosima Porteus   +4 more
core   +1 more source

Pyruvate Transport in Isolated Cardiac Mitochondria from two Species of Amphibian Exhibiting Dissimilar Aerobic Scope: Bufo Marinus and Rana Catesbeiana

open access: yes, 2007
Cardiac mitochondria were isolated from Bufo marinus and Rana catesbeiana, two species of amphibian whose cardiovascular systems are adapted to either predominantly aerobic or glycolytic modes of locomotion.
Duerr, Jeff, Tucker, Kristina
core   +1 more source

ECOLOGICAL RELEASE OF AN EXOTIC SPECIES UPON SUPPRESSION OF ITS INVASIVE PREDATOR: A FIVE-YEAR CASE STUDY, WITH NOTES ON OTHER SPECIES, AND THE LIFE HISTORY OF THE MEDITERRANEAN GECKO, HEMIDACTYLUS TURCICUS [PDF]

open access: yes, 2014
Ecological release allows a species to expand beyond its currently occupied niche upon removal of a limiting mechanism such as a predator or competitor. Unfortunately, these interactions between exotic and invasive organisms are relatively unknown.
McCallum, Jamie L., McCallum, Malcolm L.
core   +2 more sources

Removing invasive stream macrofauna shifts nontarget invertebrate mesofauna through facilitation

open access: yesEcosphere, Volume 16, Issue 12, December 2025.
Abstract Positive interactions among non‐native species can drive invasional meltdowns to the detriment of native biota. Here, we assessed whether targeted control of aquatic invasive species (AIS) can benefit native species by eliminating synergies among invaders.
Jennifer Whitt   +5 more
wiley   +1 more source

GANHO DE PESO DE RíS-TOURO (Rana catesbeiana, SHAW), CRIADAS EM GAIOLAS INDIVIDUAIS DE DIFERENTES TAMANHOS

open access: yesBoletim do Instituto de Pesca, 2018
Foi feito um experimento no Ranário Experimental do Parque Fernando Costa, São Paulo, Brasil, a fim de comparar-se o desenvolvimento de rãs-touro (Rana catesbeiana Shaw, 1802) em gaiolas individuais de diferentes tamanhos.
Dorival FONTANELLO   +5 more
doaj  

Snake (Colubridae: Thamnophis) Predatory Responses to Chemical Cues from Native and Introduced Prey Species [PDF]

open access: yes, 2004
Several aquatic vertebrates have been introduced into freshwater systems in California over the past 100 years. Some populations of the two-striped garter snake (Thamnophis hammondii) have lived in sympatry with these species since their introduction ...
Ervin, Edward L.   +4 more
core   +2 more sources

Developmental Patterns of Hepatic Peroxisome Proliferator‐Activated Receptor (PPAR) Expression in Xenopus laevis and Response to Pharmaceutical Agonists During Metamorphic Climax

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 343, Issue 10, Page 1191-1204, December 2025.
ABSTRACT Peroxisome proliferator‐activated receptors (PPAR) are master transcriptional regulators that maintain metabolic homeostasis in vertebrates. Amphibians are often exposed to endocrine disrupting compounds (EDCs) that could dysregulate lipid metabolism.
Anna Bushong   +3 more
wiley   +1 more source

Alterações histopatológicas em girinos de rã-touro alimentados com rações comerciais de diferentes níveis protéicos Histopathological alterations in bullfrog tadpoles fed commercial diets with three levels of crude protein

open access: yesRevista Brasileira de Zootecnia, 2008
Realizaram-se necropsia e exame histopatológico de girinos de rã-touro (Rana catesbeiana) alimentados com rações comerciais formuladas com 32, 36, 45 ou 55% de proteína bruta (PB) visando estabelecer a relação entre o nível de proteína bruta da ração e a
José Teixeira de Seixas Filho   +5 more
doaj   +1 more source

The evolution, distribution and diversity of endogenous circoviral elements in vertebrate genomes [PDF]

open access: yes, 2018
Circoviruses (family Circoviridae) are small, non-enveloped viruses that have short, single-stranded DNA genomes. Circovirus sequences are frequently recovered in metagenomic investigations, indicating that these viruses are widespread, yet they remain ...
Dennis, Tristan P.W.   +5 more
core   +1 more source

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