Patterns of cranial shape diversification during the phylogenetic branching process of New World monkeys (Primates: Platyrrhini)

Pérez, S. Iván; Klaczko, Julia; Rocatti, Guido; Reis, Sérgio Furtado dos

doi:10.1111/j.1420-9101.2011.02309.x

Cited by 42 publications

(59 citation statements)

References 58 publications

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“…Evolutionary allometry was estimated via multivariate regression of phylogenetically independent contrasts of shape onto phylogenetically independent contrasts of size (Figueirido, Serrano‐Alarcón, Slater, & Palmqvist, ; Perez, Klaczko, Rocatti, & dos Reis, ). To obtain the nonallometric component of shape variation (corrected for evolutionary allometry), the regression residuals from independent contrast regression were used as shape variables.…”

Section: Methodsmentioning

confidence: 99%

Multilevel assessment of the Lacertid lizard cranial modularity

Urošević

Ljubisavljević

Ivanović

2018

J Zool Syst Evol Res

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Different factors and processes that produce phenotypic variation at the individual, population, or interspecific level can influence or alter the covariance structure among morphological traits. Therefore, studies of the patterns of integration and modularity at multiple levels—static, ontogenetic, and evolutionary, can provide invaluable data on underlying factors and processes that structured morphological variation, directed, or constrained evolutionary changes. Our dataset, consisting of cranium shape data for 14 lizard species from the family Lacertidae, with substantial samples of hatchlings and adults along with their inferred evolutionary relationships, enabled us to assess modularity and morphological integration at all three levels. Five, not mutually exclusive modularity hypotheses of lizard cranium, were tested, and the effects of allometry on intensity and the pattern of integration and modularity were estimated. We used geometric morphometrics to extract symmetric and asymmetric, as well as allometric and nonallometric, components of shape variation. At the static level, firm confirmation of cranial modularity was found for hypotheses which separate anterior and posterior functional compartments of the skull. At the ontogenetic level, two alternative hypotheses (the “anteroposterior” and “neurodermatocranial” hypotheses) of ventral cranial modularity were confirmed. At the evolutionary level, the “neurodermatocranial” hypothesis was confirmed for the ventral cranium, which is in accordance with the pattern observed at the ontogenetic level. The observed pattern of static modularity could be driven by functional demands and can be regarded as adaptive. Ontogenetic modularity and evolutionary modularity show the same developmental origin, indicating conservatism of modularity patterns driven by developmental constraints.

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Section: Methodsmentioning

confidence: 99%

Multilevel assessment of the Lacertid lizard cranial modularity

Urošević

Ljubisavljević

Ivanović

2018

J Zool Syst Evol Res

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“…Comparative methods such as independent contrasts or, equivalently, phylogenetic generalized least squares, can be combined with the usual morphometric methods for analysing morphological integration and modularity [18]. This combination of methods has been used in a range of studies, using analyses such as multivariate regressions to estimate evolutionary allometry [18,25,35,92,93], partial leastsquares analysis for examining patterns of integration among parts [16][17][18][19][20][21]26] and tests of modularity [18,21,52].…”

Section: (G) Evolutionary Integrationmentioning

confidence: 99%

Studying morphological integration and modularity at multiple levels: concepts and analysis

Klingenberg

2014

Phil. Trans. R. Soc. B

286

301

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Although most studies on integration and modularity have focused on variation among individuals within populations or species, this is not the only level of variation for which integration and modularity exist. Multiple levels of biological variation originate from distinct sources: genetic variation, phenotypic plasticity resulting from environmental heterogeneity, fluctuating asymmetry from random developmental variation and, at the interpopulation or interspecific levels, evolutionary change. The processes that produce variation at all these levels can impart integration or modularity on the covariance structure among morphological traits. In turn, studies of the patterns of integration and modularity can inform about the underlying processes. In particular, the methods of geometric morphometrics offer many advantages for such studies because they can characterize the patterns of morphological variation in great detail and maintain the anatomical context of the structures under study. This paper reviews biological concepts and analytical methods for characterizing patterns of variation and for comparing across levels. Because research comparing patterns across level has only just begun, there are relatively few results, generalizations are difficult and many biological and statistical questions remain unanswered. Nevertheless, it is clear that research using this approach can take advantage of an abundance of new possibilities that are so far largely unexplored.

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“…Moreover, other studies failed to recover or recovered only a weak relationship between ecological variation, including differences in diet, and cranial form (e.g., McBrayer ; Cardini and Elton ; Jones and Goswami ; Perez et al. ).…”

mentioning

confidence: 99%

Phylogenetic, Ecological, and Allometric Correlates of Cranial Shape in Malagasy Lemuriforms

et al. 2014

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Adaptive radiations provide important insights into many aspects of evolution, including the relationship between ecology and morphological diversification as well as between ecology and speciation. Many such radiations include divergence along a dietary axis, although other ecological variables may also drive diversification, including differences in diel activity patterns. This study examines the role of two key ecological variables, diet and activity patterns, in shaping the radiation of a diverse clade of primates, the Malagasy lemurs. When phylogeny was ignored, activity pattern and several dietary variables predicted a significant proportion of cranial shape variation. However, when phylogeny was taken into account, only typical diet accounted for a significant proportion of shape variation. One possible explanation for this discrepancy is that this radiation was characterized by a relatively small number of dietary shifts (and possibly changes in body size) that occurred in conjunction with the divergence of major clades. This pattern may be difficult to detect with the phylogenetic comparative methods used here, but may characterize not just lemurs but other mammals. K E Y W O R D S :Ecomorphology, geometric morphometrics, lemur systematics, phylogenetic comparative methods, skull evolution.Adaptive radiations provide a window into adaptation, phenotypic and taxonomic diversification, as well as the role of ecology and divergent selection in shaping evolution

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Patterns of cranial shape diversification during the phylogenetic branching process of New World monkeys (Primates: Platyrrhini)

Cited by 42 publications

References 58 publications

Multilevel assessment of the Lacertid lizard cranial modularity

Multilevel assessment of the Lacertid lizard cranial modularity

Studying morphological integration and modularity at multiple levels: concepts and analysis

Phylogenetic, Ecological, and Allometric Correlates of Cranial Shape in Malagasy Lemuriforms

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