Parrots (Psittaciformes) are a well-studied, diverse group of birds distributed mainly in
tropical and subtropical regions. Today, one-third of their species face extinction, mainly due …

Captive breeding programs are an increasingly important tool for species' conservation
efforts, but not all species reproduce well in captivity. Identifying factors that affect the …

Conservation assessments of threatened species are often limited by scarce data and
parameter uncertainty. Predictive models, designed to incorporate this uncertainty, may be …

Sex‐ratio theory predicts that parents can optimise their fitness by producing offspring of the
rare sex, yet there is a dearth of empirical evidence for adaptive sex allocation in response …

Conservation breeding programs and other forms of ex-situ management exist worldwide for
a huge variety of taxa. These programs often have dual goals of preserving an insurance …

In this work, we propose and investigate a predator-prey model where the prey population is
structured by sex and the predators (unstructured) depredate based on sex-bias. We provide …