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New records of Rhagomys rufescens (Rodentia : Sigmodontinae) in the Atlantic forest of Brazil
(MAGNOLIA PRESS, 2008)
Since it was trapped in the XIX(th) century, Rhagomys rufescens has been considered a rare endangered sigmodontine rodent and an endemic species of the Atlantic forest. Only a handful of vouchers of this taxon were known ...
Karyotypic analyses and morphological comments on the endemic and endangered Brazilian painted tree rat Callistomys pictus (Rodentia, Echimyidae)
(Sociedade Brasileira de Genética, 2008)
The genus Callistomys belongs to the rodent family Echimyidae, subfamily Echimyinae, and its only living representative is Callistomys pictus, a rare and vulnerable endemic species of the state of Bahia, Brazil. Callistomys ...
Characterization of rat behavior in the elevated plus-maze using a directed graph
(ELSEVIER SCIENCE BV, 2009)
The elevated plus-maze is a device widely used to assess rodent anxiety under the effect of several treatments, including pharmacological agents. The animal is placed at the center of the apparatus, which consists of two ...
Taxonomic status of Mus talpinus Lund (Rodentia: Sigmodontinae) from the Quaternary deposits of Lagoa Santa, Minas Gerais, Brazil and its paleoenvironmental meaning
(de Gruyter, 2013-08)
Mus talpinus, a fossil sigmodontine rodent exhumated by P. W. Lund from Quaternary deposits in the Lagoa Santa area, Brazil, has been varyingly allocated to the genera Oxymycterus, Blarinomys or Juscelinomys. After our ...
Dehydroepiandrosterone to induce murine models for the study of Polycystic Ovary Syndrome
(Elsevier, 2010-04)
During the last decade a battery of animal models used for the study of polycystic ovary syndrome (PCOS) have allowed a focus on different aspects of the pathology. Since dehydroepiandrosterone (DHEA) was found to be one ...
Grid cells on the ball
(Iop Publishing, 2013-03)
What sort of grid cells do we expect to see in rodents who have spent their developmental period inside a large spherical cage? Or, in a different experimental paradigm, toddling on a revolving ball, with virtual reality ...
Characterization and selection of microhabitat by Microcavia australis (Rodentia: Caviidae): first data in a rocky habitat in the Hyperarid Monte Desert of Argentina
(de Gruyter, 2014-12)
A rocky habitat, in its broadest sense, may be described as any locality that contains boulders, rocks, scree, pebbles, outcrops, cliffs, or caves. In these habitats, mammals find shelter sites that they use as nesting ...
Circadian System Development and Plasticity
(Hindawi Publishing Corporation, 2014-06)
Circadian clocks drive 24 h oscillations in physiology and behavior from algae to humans, using light/dark cycles as the main synchronizing input. The questions of where, when, and how these rhythms take place have inspired ...
Specific association between the mites Androlaelaps fahrenholzi (Acari: Laelapidae) and birds Premnoplex brunnescens in Costa Rica: possible evidence of a recent host switch.
(Springer, 2013-06)
Androlaelaps fahrenholzi is a common, cosmopolitan mite constituting a species complex. This mite is found in nests or on mammal hosts and occasionally on birds. The specific host association between A. fahrenholzi-like ...
A matter of weight: Critical comments on the basic data analysed by Maestri et al. (2016) in Journal of Biogeography, 43, 1192–1202
(Wiley Blackwell Publishing, Inc, 2017-11)
Recently, Maestri, Luza, et al. () assessed the effect of ecology and phylogeny on body size variation in communities of South American Sigmodontinae rodents. Regrettably, a cursory analysis of the data and the phylogeny ...