Intrasexually selected weapons
We propose a practical concept that distinguishes the particular kind of weaponry that has
evolved to be used in combat between individuals of the same species and sex, which we …
evolved to be used in combat between individuals of the same species and sex, which we …
Forgotten fathers: paternal influences on mammalian sex allocation
Sex allocation research in mammals has focussed almost exclusively on mothers under the
assumption that the male contribution is genetically determined during meiosis and …
assumption that the male contribution is genetically determined during meiosis and …
Males can adjust offspring sex ratio in an adaptive fashion through different mechanisms
M Douhard, B Geffroy - BioEssays, 2021 - Wiley Online Library
Sex allocation research has primarily focused on offspring sex‐ratio adjustment by mothers.
Yet, fathers also benefit from producing more of the sex with greater fitness returns. Here, we …
Yet, fathers also benefit from producing more of the sex with greater fitness returns. Here, we …
Parental effects on offspring sex ratio in the Numbat (Myrmecobius fasciatus): does captivity influence paternal sex allocation?
RC Firman, CM Ellis, S Thorn… - Journal of …, 2023 - academic.oup.com
Sex allocation theories predict that under different ecological conditions the production of
sons and daughters will affect parental fitness differently. Skewed offspring sex ratios often …
sons and daughters will affect parental fitness differently. Skewed offspring sex ratios often …
A father effect explains sex-ratio bias
Sex ratio allocation has important fitness consequences, and theory predicts that parents
should adjust offspring sex ratio in cases where the fitness returns of producing male and …
should adjust offspring sex ratio in cases where the fitness returns of producing male and …
Paternal influences over offspring sex ratio in mammals–tested hypotheses and potential mechanisms
JJ Pawluk, M Zagalska‐Neubauer - Mammal Review, 2024 - Wiley Online Library
The sex ratio of sexually reproducing animal species is usually close to 1: 1 and could be
influenced by both parents. Deviations from this ratio occur in nature and can have an …
influenced by both parents. Deviations from this ratio occur in nature and can have an …
Exposure to male-dominated environments during development influences sperm sex ratios at sexual maturity
Different stages during development are important when it comes to phenotypic adjustments
in response to external stimuli. Critical stages in mammals are the prenatal phase, where …
in response to external stimuli. Critical stages in mammals are the prenatal phase, where …
Sperm sex ratio adjustment in a mammal: perceived male competition leads to elevated proportions of female-producing sperm
Mammal sex allocation research has focused almost exclusively on maternal traits, but it is
now apparent that fathers can also influence offspring sex ratios. Parents that produce …
now apparent that fathers can also influence offspring sex ratios. Parents that produce …
Evaluating the quantitative and qualitative contribution of zoos and aquaria to peer-reviewed science
J Kögler, IB Pacheco, PW Dierkes - Journal of zoo and Aquarium Research, 2020 - jzar.org
Abstract The EU Council Directive relating to the kee** of wild animals in zoos as well as
major global and regional zoo associations call upon zoos and aquaria to actively support …
major global and regional zoo associations call upon zoos and aquaria to actively support …
Monitoring health and reproductive status of olms (Proteus anguinus) by ultrasound
S Holtze, M Lukač, I Cizelj, F Mutschmann… - PLoS one, 2017 - journals.plos.org
The olm (Proteus anguinus) is a troglomorphic, neotenous amphibian with extraordinary life
expectancy and unique adaptations that deserve further investigation. A low reproductive …
expectancy and unique adaptations that deserve further investigation. A low reproductive …