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No evidence of predation causing female-biased sex ratios in marine pelagic copepods
(Oldendorf, 2013-12-12)
Although sex ratios close to unity are expected in dioecious species, biased sex ratios are common in nature. It is essential to understand causes of skewed sex ratios in situ, as they can lead to mate limitation and have ...
Population dynamics, relative growth and sex change of the protandric simultaneous hermaphrodite Exhippolysmata oplophoroides (Caridea: Lysmatidae) close to an upwelling area
(2018-06-01)
The present study investigated the population dynamics of Exhippolysmata oplophoroides in an area influenced by upwelling, focusing on reproductive period, sex ratio, growth rate, longevity, mortality, relative growth and ...
Female-biased sex ratios in marine pelagic copepods: Response to Hirst et al. (2013)
(Oldendorf, 2013-12-12)
Hirst et al. (2013; Mar Ecol Prog Ser 489:297-298) suggest that Gusmão et al. (2013; Mar Ecol Prog Ser 482:279-298) misinterpreted the findings of Hirst et al. (2010; Limnol Oceanogr 55:2193-2206). They restate that the ...
Population dynamics, sex ratio and size at sex change in a protandric simultaneous hermaphrodite, the spiny shrimp Exhippolysmata oplophoroides
(Springer, 2010-12-01)
One of the main goals of sex allocation theory is understanding sex ratio evolution. However, theoretical studies predicting sex ratios in species with unusual sexual systems, such as protandric simultaneous (PS) ...
Population dynamics, sex ratio and size at sex change in a protandric simultaneous hermaphrodite, the spiny shrimp Exhippolysmata oplophoroides
(Springer, 2010-12-01)
One of the main goals of sex allocation theory is understanding sex ratio evolution. However, theoretical studies predicting sex ratios in species with unusual sexual systems, such as protandric simultaneous (PS) ...
Blow flies, synanthropy and sex ratio: are the deviations in the sex proportion linked to human transformation of landscapes?
(Elsevier Science, 2021-07)
In most species, several factors like time of emergence, age at maturation, reproductive life span, survival of males and females, mating behavior, differential resource use, and migration patterns may affect the adult sex ...
Involvement of pituitary gonadotropins, gonadal steroids and breeding season in sex change of protogynous dusky grouper, Epinephelus marginatus (Teleostei: Serranidae), induced by a non-steroidal aromatase inhibitor
(2013-10-01)
Two experiments were performed using the aromatase inhibitor (AI) letrozole (100mg/kg) to promote sex change, from female-to-male, in protogynous dusky grouper. One experiment was performed during the breeding season ...
Involvement of pituitary gonadotropins, gonadal steroids and breeding season in sex change of protogynous dusky grouper, Epinephelus marginatus (Teleostei: Serranidae), induced by a non-steroidal aromatase inhibitor
(2013-10-01)
Two experiments were performed using the aromatase inhibitor (AI) letrozole (100mg/kg) to promote sex change, from female-to-male, in protogynous dusky grouper. One experiment was performed during the breeding season ...
Sex chromosome complement contributes to sex differences in bradycardic baroreflex response
(Hypertension, 2011)
To investigate whether sex chromosome complement modulates bradycardic baroreflex response and contributes to the angiotensin II– bradycardic baroreflex sex differences, we used the four core genotype mouse model in which ...
Sex change in the dioecious palm Ceroxylon quindiuense (Arecaceae)Sex change in the dioecious palm Ceroxylon quindiuense (Arecaceae)
(Ecological Society of AmericaRegularEcology, 2018)