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Geographic variation in cranial morphology in Thrichomys apereoides (Rodentia : Echimyidae). I. Geometric descriptors and patterns of variation in shape
(Alliance Communications Group Division Allen PressLawrenceEUA, 2002)
Analysis of the morphological variation of Doryteuthis sanpaulensis (Cephalopoda: Loliginidae) in Argentinian and Brazilian coastal waters using geometric morphometrics techniques
(Springer Verlag, 2017-09)
Shape variation of individuals from three locations, two from Argentina and one from Brazil, was analysed by geometric morphometrics techniques. Individuals were weighed, measured, sexed, assigned to a maturity stage and ...
Shape variations of Trichomonas vaginalis in presence of different substrates
(Sociedad Chilena de Parasitología, 2002)
Geographic variation in cranial morphology in Thrichomys apereoides (Rodentia : Echimyidae). II. Geographic units, morphological discontinuities, and sampling gaps
(Alliance Communications Group Division Allen PressLawrenceEUA, 2002)
Geographic variation in cranial shape in the Pumpkin Toadlet (Brachycephalus ephippium): A geometric analysis
(Soc Study Amphibians Reptiles, 2008-03-01)
The description of patterns of variation in any character system within well-defined species is fundamental for understanding lineage diversification and the identification of geographic units that represent opportunities ...
Geographic variation in cranial shape in the Pumpkin Toadlet (Brachycephalus ephippium): A geometric analysis
(Soc Study Amphibians Reptiles, 2008-03-01)
The description of patterns of variation in any character system within well-defined species is fundamental for understanding lineage diversification and the identification of geographic units that represent opportunities ...
Assessment of Shape Variation Patterns in Triatoma infestans (Klug 1834) (Hemiptera: Reduviidae: Triatominae): A First Report in Populations from Bolivia
(MDPI, 2020)
The morphological variations of four populations of geographically isolated Triatoma infestans located in the area of inter-Andean valleys and Chaco of Chuquisaca, Bolivia, were evaluated. Fifty-three females and sixty-one ...
Intraspecific shell-shape variation in the razor clam Ensis macha along the Patagonian coast
(Oxford University Press, 2011-05)
Ensis macha has a wide distribution along the Pacific and Atlantic southern coasts of South America. The pattern of morphological shell variation of this razor clam was analysed in 12 populations sampled along its whole ...
The role of ontogenetic allometry and nonallometric flower shape variation in species-level adaptive diversification: Calceolaria polyrhiza (Calceolariaceae) as a case study
(Wiley Blackwell Publishing, Inc, 2021-05)
Organism shape changes predictably during ontogeny, resulting in specific patterns of ontogenetic allometry. In several plant and animal lineages, among-species variation in the shape of mature organisms mirrors variation ...