This finding provides empirical support for theories of unbiased sex allocation when sex differences in survival arise after the period of parental investment.
Importantly, a conventional model ignoring sex biases significantly overestimated population viability.
Sex biases are widespread in nature and represent a fundamental component of sexual selection and population biology—but at which point in life history do these biases emerge?
We report a detailed individual-based demographic analysis of an intensively studied wild bird population to evaluate origins of sex biases and their consequences on mating strategies and population dynamics.
But the move undeniably makes it harder for sex workers, and many are lamenting that it will be difficult to find work without Backpage.
The Sex Workers Outreach Project, a social justice group focused on the sex trade, said in a statement, “[T]his closure has deeply impacted our communities, removing a unique, low-cost and low-barrier way for some of the most marginalized individuals in the adult industry who otherwise might have relied on a third-party or riskier street-based sex work to earn a living.” It isn’t just consenting adult sex workers who are impacted by the shutdown.
was a critical investigative tool depended on by America’s vice detectives and agents in the field to locate and recover missing children and to arrest and successfully prosecute the pimps who prostitute children.” She added, “The ability to search for and track potentially exploited children on a website and have the website bend over backwards to help and cooperate with police the way Backpage did was totally unique.
Sex biases also strongly influenced population viability, which was significantly overestimated when sex ratio and mating system were ignored.