Patterns of growth and sexual size dimorphism in two species of box turtles with environmental sex determination

Oecologia ◽  
1998 ◽  
Vol 115 (4) ◽  
pp. 501-507 ◽  
Author(s):  
Robert C. St. Clair
Keyword(s):  
Sex Determination ◽  
Sexual Size Dimorphism ◽  
Environmental Sex Determination ◽  
Size Dimorphism ◽  
Box Turtles

scholarly journals Are evolutionary transitions in sexual size dimorphism related to sex determination in reptiles?

2021 ◽  
Vol 34 (4) ◽  
pp. 594-603
Author(s):  
Gergely Katona ◽  
Balázs Vági ◽  
Zsolt Végvári ◽  
András Liker ◽  
Robert P. Freckleton ◽  
...  
Keyword(s):  
Sex Determination ◽  
Sexual Size Dimorphism ◽  
Evolutionary Transitions ◽  
Size Dimorphism

scholarly journals Sexual Size Dimorphism and Morphological Sex Determination in the Black-billed Magpie in South Korea (Pica pica sericea)

2007 ◽  
Vol 30 (2) ◽  
pp. 195-199 ◽  
Author(s):  
Sang-Im Lee ◽  
Hyun-Joo Jang ◽  
Soo-Hyung Eo ◽  
Jae-Chun Choe
Keyword(s):  
South Korea ◽  
Sex Determination ◽  
Sexual Size Dimorphism ◽  
Pica Pica ◽  
Size Dimorphism

Sex Determination and Sexual Size Dimorphism in the Red-billed Tropicbird (Phaethon aethereus) and White-tailed Tropicbird (P. lepturus)

Waterbirds ◽  
2013 ◽  
Vol 36 (3) ◽  
pp. 348-352 ◽  
Author(s):  
Guilherme Tavares Nunes ◽  
Gustavo Da Rosa Leal ◽  
Cynthia Campolina ◽  
Thales Renato Ochotorena De Freitas ◽  
Márcio Amorim Efe ◽  
...  
Keyword(s):  
Sex Determination ◽  
Sexual Size Dimorphism ◽  
Size Dimorphism

scholarly journals Sexual size dimorphism and sex determination by morphometric measurements in the Coscoroba Swan

2011 ◽  
Vol 46 (3) ◽  
pp. 177-184 ◽  
Author(s):  
Cecilia Perez Calabuig ◽  
Andy J. Green ◽  
Miguel Ferrer ◽  
Roberto Muriel ◽  
Heden Moreira
Keyword(s):  
Sex Determination ◽  
Sexual Size Dimorphism ◽  
Morphometric Measurements ◽  
Size Dimorphism

Population structure and the evolution of sexual size dimorphism and sex ratios in an insular population of Florida box turtles (Terrapene Carolina bauri)

1997 ◽  
Vol 75 (9) ◽  
pp. 1495-1507 ◽  
Author(s):  
C. Kenneth Dodd Jr.
Keyword(s):  
Sex Ratio ◽  
Sexual Size Dimorphism ◽  
Sex Ratios ◽  
Size Dimorphism ◽  
Terrapene Carolina ◽  
Key Population ◽  
Younger Age ◽  
Box Turtles ◽  
The Status ◽  
Using Data

Hypotheses in the chelonian literature suggest that in species with sexual size dimorphism, the smaller sex will mature at a smaller size and a younger age than the larger sex, sex ratios should be biased in favor of the earlier maturing sex, and deviations from a 1:1 sex ratio result from maturation of the smaller sex at a younger age. I tested these hypotheses using data collected from 1991 to 1995 on an insular (Egmont Key) population of Florida box turtles, Terrapene Carolina bauri. Contrary to predictions, the earlier maturing sex (males) grew to larger sizes than the late maturing sex. Males were significantly larger than females in mean carapace length but not mean body mass. Sex ratios were not balanced, favoring the earlier maturing sex (1.6 males: 1 female), but the sex-ratio imbalance did not result from faster maturation of the smaller sex. The imbalance in the sex ratio in Egmont Key's box turtles is not the result of sampling biases; it may result from nest placement. Size-class structure and sex ratios can provide valuable insights into the status and trends of populations of long-lived turtles.

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