Rationale Polysubstance use, defined as the consumption of more than one addictive substance either simultaneously or sequentially, is an established contributing factor to drug overdose deaths. Almost 80% of opioid-related overdose deaths involve a second substance and 21.6% of these deaths involve cocaine. Beyond increased overdose risk, polysubstance use is also linked to poorer treatment outcomes as well as higher relapse...

Timely detection and understanding of causes for population decline are essential for effective wildlife management and conservation. Assessing trends in population size has been the standard approach, but we propose that monitoring population health could prove more effective. We collated data from 7 bottlenose dolphin ( Tursiops trun catus) populations in the southeastern United States to develop a method for estimating surv...

Emerging data in a range of non-human animal species have highlighted a latent ability to combine certain pre-existing calls together into larger structures. Currently, however, the quantification of context-specific call combinations has received less attention. This is problematic because animal calls can co-occur with one another simply through chance alone. One common approach applied in language sciences to identify recur...

Although long‐distance migratory songbirds are widely believed to be at risk from warming temperature trends, species capable of attempting more than one brood in a breeding season could benefit from extended breeding seasons in warmer springs. To evaluate local and global factors affecting population dynamics of the black‐throated blue warbler ( Setophaga caerulescens ), a double‐brooded long‐distance migrant, we used Pradel...