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Mostrando ítems 11-20 de 1215
Effect of food addition on the reproductive intensity and timing of both sexes of an intertidal crab
(Inter-Research, 2010-02)
Males and females of most animals time reproduction and synchronize their reproductive activity to maximize lifetime fitness. When food is abundant, however, the 2 sexes may time investments in reproduction differently due ...
Egg-laying site, fecundity and degree of sexual size dimorphism in frogs
(Oxford Univ Press, 2020-11-01)
Female fecundity is an important selective force leading to female-biased sexual size dimorphism (SSD) in frogs. Because anurans exhibit diverse reproductive modes, we investigated whether variation in SSD and fecundity ...
Geographical variation in fecundity and reproductive investment of Loxopagurus loxochelis (Decapoda: Anomura: Diogenidae) along the south-eastern coast of Brazil
(Taylor & Francis Ltd, 2019-01-02)
We aimed to study the fecundity and reproductive investment of Loxopagurus loxochelis under different environmental conditions. In total, 67 ovigerous females were analyzed, 20 from Macae, 26 from Ubatuba and 21 from ...
Differences in the timing of egg extrusion and reproductive investment between primiparous and multiparous females of the southern king crab Lithodes santolla
(Taylor & Francis As, 2021-12)
This study analysed differences in the timing of egg extrusion, reproductive investment and spatial distribution between primiparous and multiparous females of the southern king crab (SKC) Lithodes santolla. Early publications ...
Condition analysis of the Brazilian sharpnose shark Rhizoprionodon lalandii: evidence of maternal investment for initial post-natal life
(2018-12-01)
The present study analysed the condition factor (K) and the hepato-somatic index (I H ) of the Brazilian sharpnose shark Rhizoprionodon lalandii during its entire life cycle. Discontinuity of liver growth was observed after ...
Interacting environmental stressors modulate reproductive output and larval performance in a tropical intertidal barnacle
(2015-07)
Tropical intertidal filter-feeding invertebrates often face thermal stress and oligotrophic nearshore conditions, which may modulate reproductive responses. In order to investigate how these stressors affect resource ...