Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Octodon"”.
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Experimental trichinosis in Octodon degus (Rodentia)
Octodon degus occurs abundantly in an endemic trichinosis area of Chile. However, Trichinella spiralis, the etiologic agent for trichinosis has not been reported as a natural or laboratory parasite of O. degus. In this study, degus were found to be susceptible to doses of T. spiralis as low as 20 …
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Mechanisms driving social structure in Octodon degus
… mechanisms shaping social network structure in Octodon degus, a diurnal, semi-fossorial rodent endemic to Chile. Using data collected over three seasons (2022–2023), we tested the roles of nighttime spatial proximity, female social cohesion, and female homophily based on masculinization …
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Habitat-specific fitness benefits of sociality in Octodon degus
… Across two years, I studied two populations of Octodon degus, a plurally breeding rodent, to answer three questions: (1) Does living in large groups and having strong social network strength improve access to resources in harsh environments? (2) Does increased access to resources improve the …
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Cronobiología del sueño de movimientos oculares rápidos en Octodon degus
El Octodon degus ha sido descrito como un animal de actividad diurna en su medio natural. En condiciones de laboratorio, presenta un perfil predominantemente crepuscular en su ritmo de actividad-reposo. Se ha descrito la existencia de múltiples cronotipos en esta especie, con individuos que …
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Do females counter against costly males in the degu, Octodon degus?
… of offspring. We studied the common degu (Octodon degus), a plurally breeding rodent endemic to Chile, to evaluate (i) whether males negatively influence female reproduction, (ii) if cohesive female social relationships counter the influence of costly males, and (iii) whether females …
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Kin and social network structure in two populations of Octodon degus
… to evolve. Here I investigate two populations of Octodon degus, a South American rodent which has been shown to form kin and non-kin groups. I quantified genetic relatedness within social groups in two populations as well as social network parameters (association, strength, and clustering …
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Disminución en tamaño poblacional y asimetría fluctuante en OCTODON BRIDGESI (RODENTIA), TAXÓN ESPECIALISTA DE HÁBITAT
Doctora en Ciencias Biológicas con mención en Ecología y Biología Evolutiva
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Restricciones dietarias y digestivas sobre la tasa metabólica basal en un herbívoro pequeño, Octodon degus (Rodentia: octodontidae)
… como modelo al roedor caviomorfo herbívoro (octodon degus)
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Social organization during mating, but not offspring care, influences the reproductive success of male degus, Octodon degus
… on male reproductive success in the common degu (Octodon degus), a caviomorph rodent endemic to Chile. Male social organization was variable across years and seasons. The best fit model for male reproductive success included autumn-winter social organization unit type, year, spring group ID, and …
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Consequences of the environment: timing of litter parturition and offspring survival in the social rodent Octodon degus
… on a natural, free-living population of degus (Octodon degus), a social rodent endemic to Chile, to test predictions that ecological, social, and maternal conditions during the breeding season are associated with the timing of litter parturition and intragroup litter synchrony and that …
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Does personality affect competition, social organization, and fitness? a study using a small social mammal, Octodon degus
… group-living animals. I studied the common degu (Octodon degus), a social and group-living rodent, to evaluate whether three personality traits (aggression, boldness, and activity level) play a role in shaping competitive interactions and composition of social groups, and whether these …
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SYSTEMIC ALTERATIONS AND BRAIN CHANGES IN PHYSIOLOGY AND PATHOLOGY. THE OCTODON DEGUS AS A MODEL OF AGING AND MULTIMORBIDITY
… predisporre alla patologia. Negli ultimi anni, l'Octodon degus (O. degus) è stato proposto come modello importante per la ricerca biomedica. A differenza dei roditori tradizionali, l’O. degus è diurno e presenta svariate caratteristiche biologiche simili all'uomo, compreso lo sviluppo di alcuni …
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Harsh and variable ecological conditions modulate the relationship between social structure and direct fitness in a plurally breeding small mammal
… direct fitness in the plurally breeding rodent, Octodon degus. As predicted, increased social structure was most beneficial when food abundance was more variable, mean monthly rainfall was highest, predator abundance was more variable, soil hardness was more variable, and ectoparasitic flea …