scholarly journals Protogynous Sex Change in the Intertidal Isopod Gnorimosphaeroma oregonense (Crustacea: Isopoda)

1994 ◽  
Vol 187 (1) ◽  
pp. 99-111 ◽  
Author(s):  
H. J. Brook ◽  
T. A. Rawlings ◽  
R. W. Davies
Keyword(s):  
Sex Change ◽  
Protogynous Sex Change

Influence of protogynous sex change on recovery of fish populations within marine protected areas

2020 ◽  
Vol 30 (3) ◽  
Author(s):  
E. E. Easter ◽  
M. S. Adreani ◽  
S. L. Hamilton ◽  
M. A. Steele ◽  
S. Pang ◽  
...  
Keyword(s):  
Protected Areas ◽  
Marine Protected Areas ◽  
Sex Change ◽  
Fish Populations ◽  
Protogynous Sex Change

Inter-group movement of females of the polygynous gobiid fish Trimma okinawae in relation to timing of protogynous sex change

2006 ◽  
Vol 25 (2) ◽  
pp. 133-137 ◽  
Author(s):  
Hisaya Manabe ◽  
Mami Ishimura ◽  
Akihiko Shinomiya ◽  
Tomoki Sunobe
Keyword(s):  
Sex Change ◽  
Gobiid Fish ◽  
Group Movement ◽  
Protogynous Sex Change

scholarly journals Macroevolutionary Patterns of Sexual Size Dimorphism Among African Tree Frogs (Family: Hyperoliidae)

2020 ◽  
Author(s):  
Daniel M Portik ◽  
David C Blackburn ◽  
Jimmy A McGuire
Keyword(s):  
Body Size ◽  
Sexual Size Dimorphism ◽  
Sex Change ◽  
Sexual Dichromatism ◽  
Size Dimorphism ◽  
Size Scaling ◽  
Scaling Relationship ◽  
Size Evolution ◽  
Selective Forces ◽  
Protogynous Sex Change

Abstract Sexual size dimorphism (SSD) is shaped by multiple selective forces that drive the evolution of sex-specific body size, resulting in male or female-biased SSD. Stronger selection on one sex can result in an allometric body size scaling relationship consistent with Rensch’s rule or its converse. Anurans (frogs and toads) generally display female-biased SSD, but there is variation across clades and the mechanisms driving the evolution of SSD remain poorly understood. We investigated these topics in a diverse family of African treefrogs (Hyperoliidae). Hyperoliids display traits considered rare among amphibians, including sexual dichromatism and protogynous sex change. Using phylogenetic comparative methods, we tested if adult ecology, sexual dichromatism, and sex change were predictors of body size or SSD. We also tested whether hyperoliids displayed allometric interspecific body size scaling relationships. We found a majority of hyperoliid taxa display female-biased SSD, but that adult ecology and sexual dichromatism are poor predictors of sex-specific body size and SSD. Regardless of the groupings analyzed (partitioned by clades or traits), we found support for isometric body size scaling. However, we found that sex change is a significant predictor of SSD variation. Species in the Hyperolius viridiflavus complex, which putatively display this trait, show a significant reduction in SSD and are frequently sexually monomorphic in size. Although protogynous sex change needs to be validated for several of these species, we tentatively propose this trait is a novel mechanism influencing anuran body size evolution. Beyond this association, additional factors that shape the evolution of anuran body size and SSD remain elusive.

Rapid transition in sexual behaviors during protogynous sex change in the haremic angelfish Centropyge vroliki (Pomacanthidae)

2003 ◽  
Vol 50 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Yoichi Sakai ◽  
Chihiro Tsujimura ◽  
Yukari Nakata ◽  
Hisayo Tanabe ◽  
Go Maejima
Keyword(s):  
Sexual Behaviors ◽  
Sex Change ◽  
Rapid Transition ◽  
Protogynous Sex Change
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