منابع مشابه
Evolution of morphological allometry.
Morphological allometry refers to patterns of covariance between body parts resulting from variation in body size. Whether measured during growth (ontogenetic allometry), among individuals at similar developmental stage (static allometry), or among populations or species (evolutionary allometry), allometric relationships are often tight and relatively invariant. Consequently, it has been sugges...
متن کاملEvolution through genetically controlled allometry space.
Understanding evolutionary change requires phenotypic differences between organisms to be placed in a genetic context. However, there are few cases where it has been possible to define an appropriate genotypic space for a range of species. Here we address this problem by defining a genetically controlled space that captures variation in shape and size between closely related species of Antirrhi...
متن کاملMorphological Evolution of Galaxies
We simulate the growth of large-scale structure, for 3 different cosmological models, an Einstein-de Sitter model (density parameter Ω0 = 1), an open model (Ω0 = 0.2) and a flat model with nonzero cosmological constant (Ω0 = 0.2, cosmological constant λ0 = 0.8), using a cosmological N-body code (PM) with 64 dark matter particles in a comoving cubic volume of present comoving size 128 Mpc. The c...
متن کاملModels of morphological evolution
In this lecture, we will be covering models of morphological evolution. These fall into two different classes: those that model morphology in terms of discrete states and those that treat morphology as quantitative characters. Both are applicable to other types of data; for instance, the discrete-state models can be applied to restriction site data and other data of a presence/absence nature, a...
متن کاملThe evolution of static allometry in sexually selected traits.
Although it has been the subject of verbal theory since Darwin, the evolution of morphological trait allometries remains poorly understood, especially in the context of sexual selection. Here we present an allocation trade-off model that predicts the optimal pattern of allometry under different selective regimes. We derive a general solution that has a simple and intuitive interpretation and us...
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ژورنال
عنوان ژورنال: Annals of the New York Academy of Sciences
سال: 2014
ISSN: 0077-8923
DOI: 10.1111/nyas.12470