Sexual selection after gamete release in broadcast spawning invertebrates

JP Evans, RA Lymbery - Philosophical Transactions of …, 2020 - royalsocietypublishing.org
Broadcast spawning invertebrates offer highly tractable models for evaluating sperm
competition, gamete-level mate choice and sexual conflict. By displaying the ancestral …

Intra-specific correlations between ejaculate traits and competitive fertilization success: a meta-analysis across species and fertilization modes

EL Macartney, K Morrison, RR Snook, M Lagisz… - …, 2024 - academic.oup.com
Understanding of how selection can act on traits that improve competitiveness and
subsequent paternity has advanced, including the idea that internal and external fertilization …

Female reproductive fluids 'rescue'sperm from phenotypic ageing in an external fertilizer

JH Hadlow, JP Evans… - Proceedings of the …, 2023 - royalsocietypublishing.org
Female reproductive fluids (FRFs) serve key reproductive functions in sexually reproducing
animals, including modifying the way sperm swim and detect eggs, and influencing sperm …

How female × male and male × male interactions influence competitive fertilization in Drosophila melanogaster

S Lüpold, JB Reil, MK Manier, V Zeender… - Evolution …, 2020 - academic.oup.com
How males and females contribute to joint reproductive success has been a long-standing
question in sexual selection. Under postcopulatory sexual selection, paternity success is …

Testing for age-dependent effects of dietary restriction on the strength of condition dependence in ejaculate traits in the guppy (Poecilia reticulata)

JP Evans, EJ Turnbull… - Royal Society Open …, 2023 - royalsocietypublishing.org
Ejaculates can be costly to produce and depend on an individual's condition, defined as the
pool of resources allocated to fitness. A method for assessing condition dependence is to …

Sperm depletion in relation to developmental nutrition and genotype in Drosophila melanogaster

EL Macartney, V Zeender, A Meena, AN De Nardo… - …, 2021 - academic.oup.com
Nutrient limitation during development can restrict the ability of adults to invest in costly
fitness traits, and genotypes can vary in their sensitivity to developmental nutrition. However …

Sexual selection maintains a female-specific character in a species with dynamic sex roles

RM Hare, LW Simmons - Behavioral Ecology, 2021 - academic.oup.com
The effects of sexual selection are more conspicuous among male animals, and, as a result,
the majority of sexual selection research focuses on males. However, burgeoning evidence …

Physical and physiological impacts of ocean warming alter phenotypic selection on sperm morphology

E Chirgwin, DJ Marshall, K Monro - Functional Ecology, 2020 - Wiley Online Library
Global warming may threaten fertility, which is a key component of individual fitness and vital
for population persistence. For males, fertility relies on the ability of sperm to collide and fuse …

Dietary stress increases the total opportunity for sexual selection and modifies selection on condition‐dependent traits

S Cattelan, JP Evans, F Garcia‐Gonzalez… - Ecology …, 2020 - Wiley Online Library
Although it is often expected that adverse environmental conditions depress the expression
of condition‐dependent sexually selected traits, the full consequences of environmental …

Selection on Sperm Count, but Not on Sperm Morphology or Velocity, in a Wild Population of Anolis Lizards

AF Kahrl, MC Kustra, AM Reedy, RS Bhave, HA Seears… - Cells, 2021 - mdpi.com
Sperm competition is a widespread phenomenon that shapes male reproductive success.
Ejaculates present many potential targets for postcopulatory selection (eg, sperm …