Documentos de Marjorie Riofrio-Lazo | REDI

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Rapid Communications in Mass Spectrometry(2)

Aquatic Mammals(1)

Marine Biodiversity Records(1)

Área temáticas

Temas específicos de historia natural de los animales(4)

Vertebrados de sangre fría(2)

Área de conocimiento

Biodiversidad(3)

Especies en peligro de extinción(1)

Año de Publicación

Origen

Palabras Claves

Dentine growth layer(1)

Extralimital movement(1)

Feeding strategy(1)

Gulf of Guayaquil(1)

Competition influence in the segregation of the trophic niche of otariids: A case study using isotopic bayesian mixing models in Galapagos pinnipeds

Abstract: RATIONALE The feeding success of predators is associated with the competition level for resources, a

Palabras claves:

Diego Páez-Rosas, Marjorie Riofrio-Lazo, Rodríguez-Pérez M.

Declines and recovery in endangered Galapagos pinnipeds during the El Niño event

Abstract: Currently, the Galapagos sea lion (GSL, Zalophus wollebaeki) and Galapagos fur seal (GFS, Arctocepha

Palabras claves:

Diego Páez-Rosas, Espinoza E.R., Marchetti A., Marjorie Riofrio-Lazo, Seim H., Torres J.

Feeding habits of introduced black rats, Rattus rattus, in nesting colonies of Galapagos petrel on San Cristóbal Island, Galapagos

Abstract: Introduced rodents are responsible for ecosystem changes in islands around the world. In the Galapag

Palabras claves:

Diego Páez-Rosas, Marjorie Riofrio-Lazo

Ontogenetic changes in feeding habits of northern elephant seals revealed by δ <sup>15</sup>N and δ <sup>13</sup>C analysis of growth layers in teeth

Abstract: Stable isotope analysis is useful for examining the feeding strategies of mammals. Isotopes in the a

Palabras claves:

Dentine growth layer, Feeding strategy, Isotope fractionation, Mirounga angustirostris, Ontogenetic dietary shifts, Stable isotope

Aurioles-Gamboa D., Le Boeuf B., Marjorie Riofrio-Lazo

Unprecedented Records of Guadalupe and Juan Fernandez Fur Seals in the Galapagos Archipelago

Palabras claves:

Diana Pazmiño, Diego Páez-Rosas, Marjorie Riofrio-Lazo

Population abundance of the endangered galapagos sea lion Zalophus wollebaeki in the southeastern Galapagos archipelago

Abstract: There is great concern regarding the population status of the endangered Galapagos sea lion (GSL) be

Palabras claves:

Arreguín-Sánchez F., Diego Páez-Rosas, Marjorie Riofrio-Lazo

Southern elephant seal vagrants in Ecuador: A symptom of la Niña events?

Abstract: Background: Extralimital observations of pinnipeds are important to understand the effects of changi

Palabras claves:

ECUADOR, Extralimital movement, Gulf of Guayaquil, LA NIÑA, Mirounga leonina, Southern elephant seal

Carvajal R., Diego Páez-Rosas, José Alava J., Juan de Dios Morales, Marjorie Riofrio-Lazo, Ortega J.

The Ecological Role of the Vaquita, Phocoena sinus, in the Ecosystem of the Northern Gulf of California

Abstract: From an ecosystem management perspective, analysis of the functional roles of species is a challenge

Palabras claves:

ecosystem functioning, ecosystem order, emergent network indices, energy flows, Northern Gulf of California, role of groups, trophic ecosystem model, vaquita

Arreguín-Sánchez F., Escobar-Toledo F., Marjorie Riofrio-Lazo, Zetina-Rejón M.J.

Timing of isotopic integration in marine mammal skull: Comparative study between calcified tissues

Abstract: RATIONALE Tissues with different turnover rates have different isotope compositions and reflect the

Palabras claves:

Aurioles-Gamboa D., Marjorie Riofrio-Lazo