Many populations of elasmobranchs (sharks and rays) are experiencing severe declines
due to the high demand for shark fins in Asia, the activities of unregulated fisheries, and …

Conservation concerns exist for many sharks but robust estimates of abundance are often
lacking. Improving population status is a performance measure for species under …

Risk-induced fear effects exerted by top predators are pervasive in terrestrial and marine
systems, with lasting impacts on ecosystem structure and function. The loss of top predators …

Large genomic data sets generated with restriction site-associated DNA sequencing
(RADseq), in combination with demographic inference methods, are improving our ability to …

Despite global declines of apex predatory sharks, evidence for ecosystem consequences
remains limited and debated. This is likely a result of both the logistical difficulties of …

Unprecedented levels of change in ocean ecosystems bring an ever-increasing need for re-
analyses of existing data to explore pressing conservation questions. Substantial declines in …

Predators can impact ecosystems through consumptive or risk effects on prey.
Physiologically, risk effects can be mediated by energetic mechanisms or stress responses …

Sustainable exploitation of fisheries populations is challenging to achieve when the size of
the population prior to exploitation and the actual numbers removed over time and across …

Little is known about the extent of genetic connectivity along continuous coastlines in manta
rays, or whether site visitation is influenced by relatedness. Such information is pertinent to …

Vagile, large-bodied marine organisms frequently have wide range dispersion but also
dependence on coastal habitats for part of their life history. These characteristics may induce …