2006
DOI: 10.1590/s0001-37652006000100009
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Abstract: Mammalian seasonalmolting and color change are known to be influenced by photoperiod changes. Calomys laucha, a South American rodent, exhibits seasonal pelage color change; however, unlike Northern hemisphere rodents, which present a gray or brown color during summer and a whitish color during winter, C. laucha pelage changes from an orange color during summer to a dark gray color during winter. Animals maintained for over a year in stationary photoperiod (LD 12:12h, 22 • C) presented orange pelage color dur… Show more

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Cited by 18 publications
(14 citation statements)
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References 24 publications
(25 reference statements)
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“…The coat color of A. budini specimens varies with sex in a pattern of change that can be quantitatively characterized. In agreement with the results of Camargo et al (2006) for other small mammal species, we hypothesize that coat color in males of A. budini will be more homogeneous than in females, probably due to the fact that males are more exposed to predation than females because they spend more time on the surface searching for territories, and, therefore, as a protective camouflage, the coat color of surviving adult males better matches background color than that of females (Camargo et al, 2006).…”
Section: Hypothesessupporting
confidence: 86%
See 1 more Smart Citation
“…The coat color of A. budini specimens varies with sex in a pattern of change that can be quantitatively characterized. In agreement with the results of Camargo et al (2006) for other small mammal species, we hypothesize that coat color in males of A. budini will be more homogeneous than in females, probably due to the fact that males are more exposed to predation than females because they spend more time on the surface searching for territories, and, therefore, as a protective camouflage, the coat color of surviving adult males better matches background color than that of females (Camargo et al, 2006).…”
Section: Hypothesessupporting
confidence: 86%
“…In particular, intra-specific color variation is often underestimated by researchers (Davis and Castleberry, 2010). In specimens of the same taxonomic unit, variations in coat color may exist in relation to several biological features, such as age (e.g., Rios and Álvarez-Castañeda, 2012), sex (e.g., Davis and Castleberry, 2010;Rios and Álvarez-Castañeda, 2012), season (e.g., Camargo et al, 2006), habitat (e.g., Heth et al, 1988;Carraway and Verts, 2002;Lai et al, 2008;Rios and Álvarez-Castañeda, 2012), etc. Moreover, in specimens collected in different years, there may be variations in coat color in relation to sample antiquity, i.e., the storage time of the specimens in a Mammalian Collection of a Natural History Museum (e.g., Davis and Castleberry, 2010;Davis et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…Davis, 1957;Van Deusen, 1969;Raposo et al, 1998;Lahti and Lahti, 2002;Bordignon and França, 2004;Barp et al, 2006;Camargo et al, 2006). It represents one of the most ambitious efforts to date at developing a colour atlas as it contains nominally 7279 samples on 38 plates, each conveniently perforated so that direct comparison with materials is possible (Brown et al, 2006).…”
Section: Methodsmentioning
confidence: 99%
“…Therefore, pelage color can be studied for documenting coloration patterns of a particular species or group of species and for relating this information to several biological, ecological, and/or environmental features, in order to assess the degree of intra-and/or inter-specifi c color variation of the studied taxonomic units. Small mammal intra-specifi c color variation has been related to sex (e.g., Castleberry 2010, Rios andÁlvarez-Castañeda 2012), age (e.g., Rios and Álvarez-Castañeda 2012), habitat (e.g., Heth et al 1988, Carraway and Verts 2002, Lai et al 2008, Rios and Álvarez-Castañeda 2012, and season (e.g., Camargo et al 2006), among others factors. Regarding inter-specific color variation, pelage color is considered a valuable taxonomic feature in several cases, in which the color variation range related to specifi c identity is a diagnostic marker of the mammal species (or subspecies).…”
Section: Introductionmentioning
confidence: 99%