Traditional and geometric morphometrics detect morphological variation of lower pharyngeal jaw in<i>Coris julis</i>(Teleostei, Labridae)

Fruciano, Carmelo; Tigano, Concetta; Ferrito, Venera

doi:10.1080/11250003.2010.547876

Cited by 18 publications

(20 citation statements)

References 44 publications

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“…All the analyses were performed on the right-side configurations described above. However, to visualize results we reflected the configurations of points obtained as results [62], thus producing more easily interpretable “bat-like” symmetric displays.…”

Section: Methodsmentioning

confidence: 99%

Bat Species Comparisons Based on External Morphology: A Test of Traditional versus Geometric Morphometric Approaches

et al. 2015

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External morphology is commonly used to identify bats as well as to investigate flight and foraging behavior, typically relying on simple length and area measures or ratios. However, geometric morphometrics is increasingly used in the biological sciences to analyse variation in shape and discriminate among species and populations. Here we compare the ability of traditional versus geometric morphometric methods in discriminating between closely related bat species – in this case European horseshoe bats (Rhinolophidae, Chiroptera) – based on morphology of the wing, body and tail. In addition to comparing morphometric methods, we used geometric morphometrics to detect interspecies differences as shape changes. Geometric morphometrics yielded improved species discrimination relative to traditional methods. The predicted shape for the variation along the between group principal components revealed that the largest differences between species lay in the extent to which the wing reaches in the direction of the head. This strong trend in interspecific shape variation is associated with size, which we interpret as an evolutionary allometry pattern.

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Section: Methodsmentioning

confidence: 99%

Bat Species Comparisons Based on External Morphology: A Test of Traditional versus Geometric Morphometric Approaches

et al. 2015

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“…The variability in osteological trophic traits in two geographically close populations of the species has been recently assessed (Fruciano, Tigano & Ferrito, 2011a) but, to the best of our knowledge, the scientific literature is lacking of any other morphometric study on the intraspecific morphological variability of the species. Recent work on the species (Fruciano et al, 2011b) has shown the absence of neutral genetic structuring within the Mediterranean Sea, which has been suggested to be a consequence of the high dispersal capabilities of the species, which are, in turn, probably correlated with the long planktonic larval phase (Gordoa, Molì & Raventos, 2000;Raventòs & Macpherson, 2001).…”

Section: Introductionmentioning

confidence: 99%

Geographical and morphological variation within and between colour phases inCoris julis(L. 1758), a protogynous marine fish

Fruciano

Tigano

Ferrito

2011

Biological Journal of the Linnean Society

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The possible differences between sexes in patterns of morphological variation in geographical space have been explored only in gonochorist freshwater species. We explored patterns of body shape variation in geographical space in a marine sequential hermaphrodite species, Coris julis (L. 1758), analyzing variation both within and between colour phases, through the use of geometric morphometrics and spatially-explicit statistical analyses. We also tested for the association of body shape with two environmental variables: temperature and chlorophyll a concentration, as obtained from time-series of satellite-derived data. Both colour phases showed a significant morphological variation in geographical space and patterns of variation divergent between phases. Although the morphological variation was qualitatively similar, individuals in the initial colour phase showed a more marked variation than individuals in the terminal phase. Body shape showed a weak but significant correlation with environmental variables, which was more pronounced in primary specimens.

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“…Coris julis (Linnaeus 1758) is a small protogynous diandric labrid species, which is common along most of the Mediterranean Sea coasts but also inhabits Eastern Atlantic coasts. Recent studies have shown that C. julis lacks genetic structuring at the Mediterranean scale (Fruciano et al 2011a) but nonetheless shows regional morphometric variation (Fruciano et al 2011b;Fruciano et al 2011c) and that patterns of morphological variation in geographic space can be different between colour phases. Coris julis also shows a certain degree of variability in colour pattern.…”

Section: Introductionmentioning

confidence: 99%

Body shape variation and colour change during growth in a protogynous fish

2011

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Protogynous sequential hermaphroditism is very common in marine fish. Despite a large number of studies on various aspects of sequential hermaphroditism in fish, the relationship between body shape and colour during growth in dichromatic species has not been assessed. Using geometric morphometrics, the present study explores the relationship between growth, body shape and colouration in Coris julis (L. 1758), a small protogynous labrid species with distinct colour phases. Results show that body shape change during growth is independent of change in colour phase, a result which can be explained by the biology of the species and by the social control of sex change. Also, during growth the body grows deeper and the head has a steeper profile. It is hypothesized that a deeper body and a steeper profile might have a function in agonistic interactions between terminal phase males and that the marked chromatic difference between colour phases allows the lack of strict interdependence of body shape and colour during growth.

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Traditional and geometric morphometrics detect morphological variation of lower pharyngeal jaw inCoris julis(Teleostei, Labridae)

Cited by 18 publications

References 44 publications

Bat Species Comparisons Based on External Morphology: A Test of Traditional versus Geometric Morphometric Approaches

Bat Species Comparisons Based on External Morphology: A Test of Traditional versus Geometric Morphometric Approaches

Geographical and morphological variation within and between colour phases inCoris julis(L. 1758), a protogynous marine fish

Body shape variation and colour change during growth in a protogynous fish

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