Sexual dimorphism in skull size and shape of Laticauda colubrina (Serpentes: Elapidae)

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Zoological Science

Main article text

 

Introduction

Materials & Methods

Measurements

Statistical analyses

Results

Allometry

Discussion

Skull size and shape

Skull allometry

Conclusions

Supplemental Information

List of specimens of Laticauda colubrina used in present study

All specimens are from the collection of Field Museum of Natural History, Chicago.

DOI: 10.7717/peerj.16266/supp-1

The skull and body measurements of Laticauda colubrina specimens used in the study

All linear measurements are in milimeters, body weight is in gramms. FMNH refers to voucher numbers of Laticauda colubrina from the Field Museum (Chicago) collection. For abbreviations see the main text.

DOI: 10.7717/peerj.16266/supp-2

Summary of Principal Components Analysis on log-shape ratio of measurements of male and female skulls of Laticauda colubrina

DOI: 10.7717/peerj.16266/supp-3

The allometric coefficients from Reduced Major Axis Regression of log-transformed skull measurements against log-transformed SVL for males (m) and females (f) of Laticauda colubrina

The distances that show positive allometry are highlighted red and those that show negative allometry are highlighted blue. Asterix denotes p-value less than *<0.05, **<0.01, ***<0.001.

DOI: 10.7717/peerj.16266/supp-4

The allometric coefficients from Reduced Major Axis Regression of log-transformed skull measurements against log-transformed skull length for males (m) and females (f) of Laticauda colubrina

The distances that show positive allometry are highlighted red and those that show negative allometry are highlighted blue. Asterix denotes p-value less than *<0.05, **<0.01, ***<0.001.

DOI: 10.7717/peerj.16266/supp-5

Additional Information and Declarations

Competing Interests

The author declares that there are no competing interests.

Author Contributions

Bartosz Borczyk conceived and designed the experiments, performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Data Availability

The following information was supplied regarding data availability:

The raw measurements are available in the Supplemental Files.

Funding

This work was supported by the Excellence Initiative–Research University (IDUB) programme for the University of Wroclaw. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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