Basal Clades and Molecular Systematics of Heteromyid Rodents

Hafner, John C.; Light, Jessica E.; Hafner, David J.; Hafner, Mark S.; Reddington, Emily; Rogers, Donald E.; Riddle, Brett R.

doi:10.1644/06-mamm-a-413r1.1

Cited by 88 publications

(109 citation statements)

References 68 publications

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“…The rodent family Heteromyidae comprises an almost entirely North American radiation (Hafner et al 2007), and although heteromyid rodents have served as model organisms for studies ranging from physiological ecology to macroevolution (Genoways and Brown 1993), robust molecularbased phylogenetic hypotheses that span the entire family or particular clades have become available only recently. For example, Alexander and Riddle (2005) and Hafner et al (2007) clarified relationships and the timing of major diversification events across subfamilies, genera, and species groups of heteromyid rodents.…”

mentioning

confidence: 99%

Diversification of the Perognathus flavus species group in emerging arid grasslands of western North America

Neiswenter

Riddle

2010

Journal of Mammalogy

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confidence: 99%

Diversification of the Perognathus flavus species group in emerging arid grasslands of western North America

Neiswenter

Riddle

2010

Journal of Mammalogy

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“…Multiple-comparison tests indicated that S. mascotensis and B. musculus were not different statistically (t = 0.37, P = 0.715) in their projections on PC1. Sigmodon mascotensis and B. musculus differed significantly from H. pictus (t = 4.37, P < 0.001 and t = 3.51, P = 0.001, respectively) and O. couesi Table 3 Abundance (numbers of individuals captured) of four most common species on 15 grids at Playa de Oro, Colima, Mexico (2003-2005 (2005) except Liomys treated as part of Heteromys (Hafner et al, 2007). Two grids where a given species was captured at only a single trapping station could not be included in analysis of SD Habitat Used.…”

Section: Resultsmentioning

confidence: 99%

Variation in habitat use of coexisting rodent species in a tropical dry deciduous forest

Poindexter¹,

Schnell²,

Sánchez-Hernández³

et al. 2012

Mammalian Biology

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a b s t r a c tUse of habitat is a critical component related to structure of small-mammal communities, with partitioning occurring primarily along dimensions of microhabitat, although use of microhabitat often does not explain fully use at a macrohabitat level. Through grid studies of small mammals in coastal Colima, Mexico (during January 2003-2005, we appraised influence of available habitat, species richness, abundance, and cumulative abundance of other small mammals on variation in habitat used by species. We evaluated 14 habitat variables (reflecting ground cover, slope, canopy, and vegetation density on vertical and horizontal axes) and developed a composite variable (principal component 1) reflecting general openness of habitat through which we addressed habitat use. For the four most common mammalian species (Sigmodon mascotensis, Heteromys pictus, Baiomys musculus, and Oryzomys couesi), two measures of variation in habitat used were employed to estimate niche breadth, one of which assessed variation in habitat use relative to variation present on a grid. Sigmodon mascotensis and B. musculus preferred areas that were more open, and H. pictus and O. couesi occupied less-open areas; breadth of habitat use did not differ interspecifically. Habitat use was more variable on grids with more variability in habitat, although not greater than chance expectations. Findings do not lend support to the resource-breadth hypothesis as an explanation for population densities of species at a local level or the habitat-heterogeneity hypothesis as a predictor of species richness. Variation in habitat used by S. mascotensis did not proportionally increase when diverse habitat was available but was greater when the species was more abundant. For H. pictus, when cumulative abundance of other small mammals was greater, breadth of habitat used was greater. Intraspecific density-dependent habitat selection may result in S. mascotensis selecting a greater variety of habitats, while greater interspecific abundance is related to a greater range in use of habitats by H. pictus. Baiomys musculus used a higher proportion of habitat relative to that available when more species were present on a grid. Variation in habitat used by O. couesi was unrelated to any factor examined. Overall, the four species responded in notably different ways with respect to availability of habitat, abundance, and presence of other species.

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“…The nomenclature and classsification at species level we followed was that by Wilson & Reeder (2005), while for subspecies level we consulted the list of Ramírez- Pulido et al (2005). For taxa of the family Heteromyidae and Soricomorpha we followed Hafner et al (2007) and Carraway (2007) respectively. We reported the category of extinction risk of the taxa according to both the Norma Oficial Mexicana 059 (SEMARNAT, 2010), and the Convention on International Trade of Endangered Species of Wild Fauna and Flora (CITES).…”

Section: Updated List Distribution and Conservation Statusmentioning

confidence: 99%