Table 1.
Summary of the photographic sampling.
Fig 1.
Landmarks locations presented on a skull of Hypogeomys antimena (MNHN ZM- 1888–6).
Ventral view: 42 landmarks; dorsal view: 27 landmarks.
Table 2.
Species and their associated ecological characteristics.
Areas are generalized from collection localities, climate data are from the Direction Générale de la Météorologie de Madagascar [44] and data concerning locomotor habits and nychthemeral cycle are from Goodman and Soarimalala (2011) [43].
Table 3.
Phylogenetic signal detected in size and shape.
Fig 2.
Visualization of the two first axes of the PCA performed on dorsal shape with phylogenetic projection.
Colored points represent the morphological average of all individuals of a species. Colors indicate the two principal clades among Nesomyinae. Blue: clade formed by the genus Brachyuromys, Nesomys, Macrotarsomys, Monticolomys, and Hypogeomys; green: clade formed by the genus Brachytarsomys, Eliurus, Gymnuromys, and Voalavo. Warpgrids indicate shape variation along axis with maximum deformation observed at each extremity of the axis.
Fig 3.
Visualization of the two first axes of the PCA performed on ventral shape with phylogenetic projection.
Colored points represent the morphological average of all individuals of a species. Colors indicate the two principal clades among Nesomyinae. Blue: clade formed by the genus Brachyuromys, Nesomys, Macrotarsomys, Monticolomys, and Hypogeomys; green: clade formed by the genus Brachytarsomys, Eliurus, Gymnuromys, and Voalavo. Warpgrids indicate shape variation along axis with maximum deformation observed at each extremity of the axis.
Table 4.
Tests of ecological factors on shape and size.
Fig 4.
Significant shape changes related to climate.
Top: ventral shape; bottom: dorsal shape.