scholarly journals No evidence that presence of sexually transmitted infection selects for reduced mating rate in the two spot ladybird,Adalia bipunctata

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1148 ◽  
Author(s):  
Sophie L. Jones ◽  
Daria Pastok ◽  
Gregory D.D. Hurst
Keyword(s):  
Sexually Transmitted Infection ◽  
Adalia Bipunctata ◽  
Transmitted Infection ◽  
Mating Rate ◽  
Sexually Transmitted

scholarly journals Sexual conflict and STIs: coevolution of sexually antagonistic host traits with a sexually transmitted infection

2017 ◽  
Author(s):  
Alison M. Wardlaw ◽  
Aneil F. Agrawal
Keyword(s):  
Sexual Conflict ◽  
Sexually Transmitted Infection ◽  
Female Mate Choice ◽  
Relative Strength ◽  
Female Resistance ◽  
Transmitted Infection ◽  
Mating Rate ◽  
Sexually Transmitted ◽  
Establishment Probability ◽  
Sexually Antagonistic Coevolution

AbstractIn many taxa, there is a conflict between the sexes over mating rate. The outcome of sexually antagonistic coevolution depends on the costs of mating and natural selection against sexually antagonistic traits. A sexually transmitted infection (STI) changes the relative strength of these costs. We study the three-way evolutionary interaction between male persistence, female resistance, and STI virulence for two types of STIs: a viability-reducing STI and a reproduction-reducing STI. A viability-reducing STI escalates conflict between the sexes. This leads to increased STI virulence (i.e., full coevolution) if the costs of sexually antagonistic traits occur through viability but not if the costs occur through reproduction. In contrast, a reproduction-reducing STI de-escalates the sexual conflict but STI virulence does not coevolve in response. We also investigated the establishment probability of STIs under different combinations of evolvability. Successful invasion by a viability-reducing STI becomes less likely if hosts (but not parasite) are evolvable, especially if only the female trait can evolve. A reproduction-reducing STI can almost always invade because it does not kill its host. We discuss how the evolution of host and parasite traits in a system with sexual conflict differ from a system with female mate choice.

scholarly journals Does online sexually transmitted infection screening compromise care? A service evaluation comparing the management of chlamydial infection diagnosed online and in clinic

2021 ◽  
Vol 32 (6) ◽  
pp. 528-532
Author(s):  
Nur Gasmelsid ◽  
Benjamin CB Moran ◽  
Tom Nadarzynski ◽  
Rajul Patel ◽  
Elizabeth Foley
Keyword(s):  
United Kingdom ◽  
Health Services ◽  
Sexual Health ◽  
Sexually Transmitted Infections ◽  
Sexually Transmitted Infection ◽  
Chlamydial Infection ◽  
Service Evaluation ◽  
Transmitted Infection ◽  
Sexually Transmitted ◽  
The United Kingdom

Patient demand on sexual health services in the United Kingdom is so high that many services have introduced online screening to accommodate more patients. There are concerns that these services may not be accessible to all. This service evaluation was undertaken to determine whether online screening is accessible by those patients most at need by comparing the demographics and number of asymptomatic chlamydial infections detected online and in clinic. No difference was found in the age nor level of deprivation, demonstrating that online services are an accessible way to screen for sexually transmitted infections without overburdening established services.

Sign in / Sign up

Export Citation Format

Share Document