Size and the Not-So-Single Sex: Disentangling the Effects of Size and Budget on Sex Allocation in Hermaphrodites [PDF]
, 2004 Sex allocation theory explains how size-related variations in male and female fitness may favor the evolution of size-dependent sex allocation in hermaphrodites.
Cadet, C. +2 more
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Morphology and anatomy of the flower and anthesis of Metrodorea nigra St. Hill. (Rutaceae)
Brazilian Archives of Biology and Technology, 2004 Studies on the morphology and anatomy of the flower and anthesis of Metrodorea nigra St. Hill. (Rutaceae) showed perfect flowers, which occurred in panicle. The peak of the flowering was August and September.
Luiz A. de Souza +3 more
doaj +1 more source
Sex change in scallop Patinopecten yessoensis: response to population composition? [PDF]
PeerJ, 2018 Sex structure is very labile between populations and specific for each population because it is a result of genetic, ontogenetic and biocenotic influences on the mollusks.
Alla V. Silina
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The interaction between reproductive lifespan and protandry in seasonal breeders [PDF]
Journal of Evolutionary Biology, 2004 Abstract The timing and duration of reproductive activities are highly variable both at the individual and population level. Understanding how this variation evolved by natural selection is fundamental to understanding many important aspects of an organism's life history, ecology and behaviour.
Y E, Morbey, P A, Abrams
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Molecular evidence for gender differences in the migratory behaviour of a small seabird [PDF]
, 2012 Molecular sexing revealed an unexpectedly strong female bias in the sex ratio of pre-breeding European Storm Petrels (Hydrobates pelagicus), attracted to playback of conspecific calls during their northwards migration past SW Europe.
Anthony Clinton +11 more
core +12 more sources
Development, reproductive capacity and diet of the Mediterranean grasshopper Arcyptera brevipennis vicheti Harz 1975 (Orthoptera: Caelifera: Acrididae: Gomphocerinae) [PDF]
, 2012 Arcyptera brevipennis vicheti Harz 1975 (Orthoptera: Acrididae) is a rare grasshopper native to Mediterranean grassland habitats in the Languedoc-Roussillon region of southern France.
Blanchet, Elodie +4 more
core +4 more sources
Experimental confirmation of protandric simultaneous hermaphroditism in a Caridean shrimp outside of the genus Lysmata [PDF]
, 2008 Caridean shrimps display a variety of sexual systems including gonochorism and various forms of protandry but rarely simultaneous hermaphroditism. Protandric simultaneous hermaphroditism (PSH) has thus far only been demonstrated in the genus Lysmata. The
Laubenheimer, Helio, Rhyne, Andrew L.
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The European Zoological Journal, 2021 Environmental factors influencing the timing of bird migration frequently affect age and sex groups differently. We applied discriminant functions to determine the sex of adult Song Thrushes ringed during spring migration in 1968–2019 at Hel on the ...
M. Redlisiak, M. Remisiewicz, A. Mazur
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Early sex change of barramundi Lates calcarifer farmed in Singapore
Aquaculture Reports, 2021 Barramundi, Lates calcarifer, are protandrous hermaphrodites where individuals first sexually mature as male at 3−5 years of age, before reorganizing gonadal tissue to change to female several years later when they reach around 70 cm in total length (∼4 ...
Celestine Terence +8 more
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Protandry and Self-Fertilization in the Calyptraeidae [PDF]
Nature, 1960 ORTON1 suggested that protandrous animals might be self-fertilizing and that this would be advantageous for the spread of a species. He concluded that Crepidula fornicata was self-fertilizing because he found an isolated female guarding veliger larvae. I have kept single Crepidula in aquaria and they have laid fertilized spawn two to three months later.
openaire +2 more sources