Results 141 to 150 of about 1,104,726 (307)

Using Periodic Matrix Models to Simulate the Effectiveness of Alternative Reintroduction Strategies for Lizards on a Seasonal Tropical Island

Animal Conservation, EarlyView.
Guam's lizard fauna has been devastated by the invasive brown treesnake, but recent advances in brown treesnake control have opened the possibility of reintroducing native lizards. We simulated different strategies for reintroducing lizards to Guam, comparing the timing and age‐structure of releases.
Jonathan P. Rose, Brian J. Halstead, Melia G. Nafus   +2 more
wiley   +1 more source

Sperm competition in yellow dung flies: No consistent effect of sperm size. [PDF]

J Evol Biol, 2022
Laugen AT, Hosken DJ, Reinhold K, Schwarzenbach GA, Hoeck PEA, Bussière LF, Blanckenhorn WU, Lüpold S.   +7 more
europepmc   +1 more source

Trends in the Use and Indications for Intracytoplasmic Sperm Injection Between 2005 and 2017: A State‐Wide Descriptive Cohort Analysis

Australian and New Zealand Journal of Obstetrics and Gynaecology, EarlyView.
ABSTRACT Background Intracytoplasmic sperm injection (ICSI) was first developed to overcome male factor infertility. ICSI has increased in uptake globally, including in cases where its use is non‐essential for fertilisation. Aims To identify temporal trends in the use of, and indications for ICSI in an Australian context.
Aleah Kink, Parinaz Mehdipour, Richard J. Hiscock, Beverley J. Vollenhoven, Catharyn J. Stern, Susan P. Walker, Mark P. Green, Tiki Osianlis, Franca Agresta, David Wilkinson, Stephen Tong, Roxanne Hastie, Amber L. Kennedy, Anthea C. Lindquist   +13 more
wiley   +1 more source

Sperm tendency to agglutinate in motile bundles in relation to sperm competition and fertility duration in chickens. [PDF]

Sci Rep, 2022
Sayed MAM, Abd-Elhafeez HH, Afifi OS, Marzouk MW, El-Sherry TM.   +4 more
europepmc   +1 more source

Semen quality in patients with testicular cancer is associated with age and with greatly elevated levels of beta human chorionic gonadotropin

Andrology, EarlyView.
Abstract Background Poor semen quality is a well‐known feature in patients with testicular germ cell tumours (GCTs) at the time of diagnosis but the underlying biological reasons are incompletely understood. Objectives This study aimed to identify GCT‐specific clinical factors that are involved with poor semen quality in GCT patients.
Klaus‐Peter Dieckmann, Johanna Hochmuth‐Tisch, Andrea Salzbrunn, Cord Matthies, Kathrein von Kopylow, Marta Godlewska, Christian Wülfing, Uwe Pichlmeier, Armin Soave, Christian Guido Ruf   +9 more
wiley   +1 more source

Adjustment of sperm allocation under high risk of sperm competition across taxa: a meta-analysis [PDF]

, 2011
Javier delBarco‐Trillo
openalex   +1 more source

Low testosterone in primary infertile men is associated with a history of maternal obesity during pregnancy: Findings from a cross‐sectional study

Andrology, EarlyView.
Abstract Background Maternal obesity increases offspring obesity risk, but limited data exist on its association with reproductive hormones in infertile males. Objectives To investigate the impact of maternal obesity during pregnancy on total testosterone levels in primary infertile men.
Fausto Negri, Luca Boeri, Edoardo Pozzi, Massimiliano Raffo, Riccardo Ramadani, Gabriele Birolini, Federica Passarelli, Christian Corsini, Federico Belladelli, Alessandro Bertini, Rayan Matloob, Alessia d'Arma, Michael L. Eisenberg, Francesco Montorsi, Andrea Salonia   +14 more
wiley   +1 more source

Are physiological oscillations physiological?

The Journal of Physiology, EarlyView., 2023
Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley   +1 more source

Paternity bias and cryptic female choice in chickens

Poultry Science
: Sperm competition and cryptic female choice (CFC) are 2 significant mechanisms of postcopulatory sexual selection that greatly impact fertilization success in various species.
Qunpu Wang, Bin Wang, Junying Li, Congjiao Sun, Ning Yang, Chaoliang Wen   +5 more
doaj   +1 more source

Sperm Competition Risk: The Connections That Partner Attractiveness and Infidelity Risk Have with Mate Retention Behaviors and Semen-Displacing Behaviors. [PDF]

Evol Psychol, 2023
Vance G, Zeigler-Hill V, Shackelford TK.
europepmc   +1 more source