Temporal dynamics of milk composition of the precocial caviomorph Octodon degus (Rodentia: Octodontidae)
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چکیده
منابع مشابه
Octomys mimax (Rodentia: Octodontidae)
Octomys mimax O. Thomas, 1920, the viscacha rat, is a surface-dwelling rodent, endemic to the Monte biome of western Argentina. The genus Octomys is monotypic and represents a basal clade within the family Octodontidae. O. mimax is strictly herbivorous and is found in low-elevation arid environments characterized by galleries or rock formations. In these environments, O. mimax nests within rock...
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To examine if a feature of episodic-like memory reported in rats is shared with other species, we investigated whether degus would form an integrated memory of object (what), place (where), and context (which). We used two E-shaped mazes with different contexts regarding the wall and the floor. Degus were entered into the middle arm and first explored the maze with two trial-unique objects plac...
متن کاملWheel-running and rest activity pattern interaction in two octodontids (Octodon degus, Octodon bridgesi).
Wheel-running and other non-photic stimuli influence the rest-activity pattern of diurnal and nocturnal mammals. A day to night inversion of phase preference of activity was described among Octodon degus, when exposed to ad-libitum wheel running. We have studied the rest-activity pattern response in presence of ad libitum wheel-running in wild-captured male individuals from two species of genus...
متن کاملTemporal variation in Trypanosoma cruzi lineages from the native rodent Octodon degus in semiarid Chile.
Chagas disease is a zoonosis caused by the protozoan parasite Trypanosoma cruzi and transmitted by triatomine insects to several mammalian species acting as reservoir hosts. In the present study, we assess T. cruzi-prevalence and DTU composition of the endemic rodent Octodon degus from a hyper-endemic area of Chagas disease in Chile. Parasite detection is performed by PCR assays on blood sample...
متن کاملRetinal projection to the dorsal raphe nucleus in the Chilean degus (Octodon degus).
A substantial projection from the retina to the dorsal raphe nucleus (DRN) has been demonstrated in the Chilean degus, a diurnal/crepuscular hystricomorph rodent. Following intraocular injection of cholera toxin subunit B (CTB), immunocytochemically labeled CTB-positive axons and terminals were observed in all major retinorecipient nuclei as well as in the DRN and periaqueductal gray (PAG) of t...
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ژورنال
عنوان ژورنال: Revista chilena de historia natural
سال: 2005
ISSN: 0716-078X
DOI: 10.4067/s0716-078x2005000200008