SURFACE-AREA-TO-VOLUME IS RELATED TO SEXUAL SIZE DIMORPHISM ACROSS CENTROBOLUS COOK, 1897

Author Name: Mark. I. Cooper

Volume/Issue: 03/06

Country: South Africa

DOI NO.: 08.2020-25662434 DOI Link: https://www.doi-ds.org/doilink/11.2022-24116995/UIJIR

Affiliation:

University Of Stellenbosch, South Africa

ABSTRACT

In this paper I test for a relationship between sexual size dimorphism (SSD) and surface-area-to-volume ratios in red millipedes Centrobolus Cook, 1897. SSD was related to surface-area-to-volume ratios in males (r=-0.39, Z score=-1.80, n=22, p=0.036)(y = -0.13x + 0.26). SSD was related to surface- area-to-volume ratios in females (r=-0.53, Z score=-2.56, n=22, p<0.01)(y = -0.19x + 0.39). Volumes were related to surface-area to volume ratios when males and female data were pooled (r=-0.46, Z score=-3.20, n=44, p<0.01) (y = -0.16 x + 0.32).

Key words: sexual size, dimorphism, red millipedes, male, female