Results 41 to 50 of about 50,849 (296)
, 2023 This protocol was established for the evaluation of sexual maturity for exploited stock species, using quantitative histology (stereology). This document describes the reading method used on histological slides under the cross-platform QuPath ...
Lepoittevin, Mélanie +9 more
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Sexual selection in a simultaneous hermaphrodite : mate choice and sperm utilization patterns [PDF]
, 2011 Sexual selection processes, in general, are distinguished in precopulatory and postcopulatory mechanisms. In the animal kingdom, precopulatory mechanisms are related to mate competition and mate choice before the copulation.
Kupfernagel, Sandra
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Mature Modifications and Sexual Dimorphism [PDF]
, 2015 Allometric growth between different parts of the shell often hampers the identification of mollusk shells, particularly in such cases where preadult shell growth varies strongly. Especially in gastropods, the terminal aperture is often less variable and yields morphological information essential for species determination (e.g. Vermeij 1993; Urdy et al.
Klug Christian +4 more
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Epigenetic Measurement of Key Vertebrate Population Biology Parameters
Frontiers in Ecology and Evolution, 2021 The age, sex, and sexual maturity of individual animals are key parameters in assessing wild populations and informing conservation management strategies.
Matthew J. Heydenrych +4 more
doaj +1 more source
Sexual maturation in Turkish boys
Annals of Human Biology, 1975 Ages of onset and attainment of various stages of secondary sexual characters were assessed from cross-sectional data on 1530 city schoolboys in Istanbul, Turkey. The subjects were grouped into four socio-economic classes. Ages of onset of pubic hair (11.80 years), axillary hair (13.15 years), facial hair (14.45 years) and laryngeal development (13.37 ...
O, Neyzi +4 more
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Sexual maturity and shape development in cranial appendages of extant ruminants
Ecology and Evolution, 2016 Morphological disparity arises through changes in the ontogeny of structures; however, a major challenge of studying the effect of development on shape is the difficulty of collecting time series of data for large numbers of taxa.
Zachary T. Calamari
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Modal and empirical lengths at sexual maturity for six deep-sea species in Ecuadorian oceanic waters
Marine and Fishery Sciences, 2023 The objective of the present work was to establish modal lengths, empirical lengths at sexual maturity, and proportions of mature individuals of six deep-sea species from the bycatch of the experimental fishery for Patagonian toothfish (Dissostichus ...
René Zambrano +2 more
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Sound Signals Processing of Roosters for Sexual Maturity and Puberty Diagnosis [PDF]
Journal of Agricultural Machinery, 2020 IntroductionImmature birds, like humans and many animals, pass through the puberty period to sexual maturity that is accompanied by sound changes and after the sexual maturity, the sound structure evolves.
M Yavari, A Banakar, M Sharafi
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, 2017 The aim of this study was to examine the influence of hormonal status, anthropometric profile, sexual maturity level, and physical performance on the technical abilities of 40 young male soccer players during small-sided games (SSGs).
Carlos R. Thiengo +16 more
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