Postfeeding Larval Dispersal Behavior of Late Season Blow Flies (Calliphoridae) in Southern Ontario,Canada

Postfeeding dispersal involves migration of larvae away from their food source in order to pupate. Puparia are difficult to find, yet are important for estimating PMI, and missing puparia during collection can result in inaccurate estimations. This study investigates the late season maggot dispersal patterns for blow flies at coyote carcasses in two habitats with an aim to improving puparia collection procedures. Puparia samples collected from various dispersal distances and directions tested the spatial distribution patterns of the various species using the variance/mean ratio (VMR). Lucilia illustris was the most common species to emerge, with a preferred minimum dispersal distance of more than 50.8 cm and an overall VMR value of 14.91, indicating this species had a clumped distribution pattern. These findings highlight that current collection procedures that use random sampling from under carcasses do not adequately account for the spatial distribution of larvae.     

Agreement without Peace? International Mediation and Time Inconsistency Problems

Mediation has competing short‐ and long‐term effects. In the short run, the actors are better able to identify and settle on a mutually satisfying outcome. In the long run, mediation can create artificial incentives that, as the mediator's influence wanes and the combatants' demands change, leave the actors with an agreement less durable than one that would have been achieved without mediation. This article tests the observable implications from this logic using a set of international crises from 1918 to 2001. The results reconcile findings in the previous literature that inconsistently portray the effectiveness of mediation.     

Framing a Needed Discourse on Health Disparities and Social Inequities: Drawing Lessons from a Pandemic

COVID-19 provides numerous opportunities for policy makers to consider matters of social equity in relation to the field of public health. Specifically, by reflecting on health disparities in relation to the disproportionate impact of COVID-19 on minority and historically underserved populations, we can leverage a needed discourse on health outcomes for many communities. Grounded in the social determinants of health conceptual framework, this essay explores the application of the disproportionate impact of COVID-19 to vulnerable populations and communities of color for a discussion of strategies for minimizing health disparities.