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Phylogenetic Principal Components Analysis and Geometric Morphometrics
TLDR
It is found that pPCA produces a shape space that preserves the Procrustes distances between objects, that allows shape models to be constructed, and that produces scores that can be used as shape variables for most purposes.
Hurricane-induced selection on the morphology of an island lizard
TLDR
Two populations of Anolis lizards that survived Hurricanes Irma and Maria had larger toepads, longer forelimbs and shorter hindlimbs relative to the pre-hurricane populations, which suggests hurricane-induced natural selection.
Getting a grip on the evolution of grasping in musteloid carnivorans: a three‐dimensional analysis of forelimb shape
TLDR
The results largely confirm predictions, demonstrating that musteloids with greater grasping skills differ markedly from others in the shape of their forelimb bones, and suggest that the evolution of an arboreal lifestyle likely preceded the development of enhanced grasping ability.
Ecomorphological diversification in squamates from conserved pattern of cranial integration
TLDR
It is demonstrated that highly diverse phenotypes, exemplified by lizards and snakes, can and do arise from differential selection acting on conserved patterns of phenotypic integration, and the primary drivers of their cranial evolution within a unified, quantitative framework.
Influence of body mass on the shape of forelimb in musteloid carnivorans
TLDR
The results obtained show that body mass evolution is tightly coordinated with the evolution of forelimb shape, although not equally in all elements, and that other factors, such as locomotor ecology, must be considered to fully understandforelimb evolution.
High-Density Morphometric Analysis of Shape and Integration: The Good, the Bad, and the Not-Really-a-Problem
TLDR
It is demonstrated that for many skull regions, 20–30 landmarks and/or semilandmarks are needed to accurately characterize their shape variation, and landmark-only analyses do a particularly poor job of capturing shape variation in vault and rostrum bones.
Functional relationship between myology and ecology in carnivores: do forelimb muscles reflect adaptations to prehension?
TLDR
The present study quantitatively analyse the myology of the forelimb in Carnivora in relation to their grasping ability, arboreality and locomotor specializations and finds that non-prehensile taxa differ in their muscle properties from poorly prehensiles taxa and from intermediately to strongly prehensileTaxa when taking into account variation in body size and phylogeny.
The ecological origins of snakes as revealed by skull evolution
TLDR
An integrative geometric morphometric approach is used that suggests evolution from terrestrial to fossorial in the most recent common ancestor of extant snakes, and indicates that snakes later evolved novel craniofacial specializations through global acceleration of skull development.
Morphological integration in the forelimb of musteloid carnivorans
TLDR
The morphological integration between each bone of the forelimb at the level of the entire arm, as well as at the elbow joint, in musteloid carnivorans is studied to quantitatively test shape co‐variation using surface 3D geometric morphometric data.
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