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Carolina Solis‐Zurita

Bio: Carolina Solis‐Zurita is an academic researcher. The author has contributed to research in topics: Sceloporus variabilis. The author has an hindex of 1, co-authored 1 publications receiving 7 citations.

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Journal ArticleDOI
TL;DR: A parsimony‐based ancestral reconstruction on body size, femoral pores and dorsal scales and related morphological changes to geographic distribution of the species will allow best designs of comparative studies with species in the “variabilis group,” one of the earliest divergent lineages in the genus.
Abstract: The monophyly of the Sceloporus variabilis group is well established with five species and two species complexes, but phylogenetic relationships within species complexes are still uncertain. We studied 278 specimens in 20 terminals to sample all taxa in the “variabilis group,” including three subspecies in the “variabilis complex,” and two outgroups (Sceloporus grammicus and Sceloporus megalepidurus). We assembled an extensive morphological data set with discrete and continuous characters (distances and scale counts), including geometric morphometric data (landmark coordinates of three shapes), and a three‐marker molecular data set as well (ND4, 12S and RAG1). We conducted parsimony and Bayesian phylogenetic inferences on these data, including several partitioning and weighting schemes. We suggest elevating three subspecies to full species status. Therefore, we recommend recognition of nine species in the “variabilis group.” First, S. variabilis is sister to Sceloporus teapensis. In turn, Sceloporus cozumelae is sister to Sceloporus olloporus. These four species are a monophyletic group, which is sister to Sceloporus smithi. Finally, Sceloporus marmoratus is sister of the clade of five species. The other species in the “variabilis group” (Sceloporus chrysostictus, Sceloporus couchii and Sceloporus parvus) are a paraphyletic grade at the base of the tree. Our analyses reject the existence of the “variabilis complex.” We conducted a parsimony‐based ancestral reconstruction on body size (snout–vent length), femoral pores and dorsal scales and related morphological changes to geographic distribution of the species. Our phylogenetic hypothesis will allow best designs of comparative studies with species in the “variabilis group,” one of the earliest divergent lineages in the genus.

10 citations


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01 Jan 2016
TL;DR: The systematics and the origin of species is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can get it instantly.
Abstract: Thank you very much for downloading systematics and the origin of species. Maybe you have knowledge that, people have look numerous times for their chosen readings like this systematics and the origin of species, but end up in malicious downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they juggled with some infectious virus inside their desktop computer. systematics and the origin of species is available in our book collection an online access to it is set as public so you can get it instantly. Our book servers hosts in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the systematics and the origin of species is universally compatible with any devices to read.

673 citations

Journal ArticleDOI
TL;DR: The goal of this contribution is to provide conceptual elements for a basic understanding of morphometric and statistical methods useful in systematics under a phylogenetic approach, and give examples and recommendations on the use of linear measurements and landmark coordinates in morphometric analyses for the identification of species, the variation of taxonomic characters and in the inference of phylogeny and classification.
Abstract: Background and Aims: Quantitative methods have accumulated for the use of linear measurements and Cartesian coordinates of landmark points in analyses of morphometric variation. Unlike previous reviews, here I emphasize the theoretical bases of mathematical spaces and morphospace of a taxonomic character. The goal of this contribution is to provide conceptual elements for a basic understanding of morphometric and statistical methods useful in systematics under a phylogenetic approach.Methods: Morphometric data are being applied in comparative biology research, using a phylogeny as a reference. In contrast, applications of morphometrics in systematics have been with the aim of phenetic grouping and distinguishing taxonomic groups with overall similarity. Under a phylogenetic approach, morphometric data can also be used for the study of taxonomic character variation, character state identity and phylogenetic inference. Taxonomic groups should be proposed from monophyletic groups discovered with phylogenetic methods.Key results: I review the basic morphometric theory, vector geometry, Kendall shape space, Procrustes distance, projection of tangential spaces, and construction of morphospace hypercubes. Remainders of statistical concepts useful for the application of Principal Component Analysis and Canonical Variate Analysis in systematics are presented. Particularly, I give examples and recommendations on the use of linear measurements and landmark coordinates in morphometric analyses for the identification of species, the variation of taxonomic characters and in the inference of phylogeny and classification.Conclusions: The current broad collection of methods provides an opportunity to integrate morphometric data to discover taxic and transformational homology. This implies an epistemological change necessary to move from applications in systematics under a phenetic approach to the integration of morphometric analyses as part of phylogenetic research.

12 citations

Journal ArticleDOI
02 Apr 2020-Zoology
TL;DR: The present study shows the importance of incorporating size and shape variables into analyses of sexual dimorphism among populations of a single species with a wide distribution, as well as the degree of difference among populations that inhabit different environments.

6 citations