Publications by authors named "Samantha J Brozak"

The cannibalistic behavior of has been extensively researched, revealing instances of chaotic dynamics in laboratory environments for . The well-established Larvae-Pupae-Adult (LPA) model has been instrumental in understanding the conditions that lead to chaos in flour beetles (genus: ). In response to new experimental observations showing a decline in the pupae population in , we proposed and analyzed a simplified two-stage Larvae-Adult (LA) model.

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Article Synopsis
  • Flour beetles have been used in ecological research to model population dynamics, particularly through the well-studied LPA (larvae-pupae-adult) model.
  • Researchers explored whether chaos is a natural behavior of flour beetle populations, adapting the LPA model to account for different adult stages and cannibalism.
  • Their findings indicate that chaos can occur but is uncommon under typical experimental conditions, suggesting it is often triggered by environmental factors rather than being an inherent trait of the beetles.
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This study presents a genetic-ecology modeling framework for assessing the combined impacts of insecticide resistance, temperature variability, and insecticide-based interventions on the population abundance and control of malaria mosquitoes by genotype. Rigorous analyses of the model we developed reveal that the boundary equilibrium with only mosquitoes of homozygous sensitive (resistant) genotype is locally-asymptotically stable whenever a certain ecological threshold, denoted by , is less than one. Furthermore, genotype drives genotype to extinction whenever and (where ,  =  or , with ≠ ).

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India has been the latest global epicenter for COVID-19, a novel coronavirus disease that emerged in China in late 2019. We present a base mathematical model for the transmission dynamics of COVID-19 in India and its neighbor, Pakistan. The base model was rigorously analyzed and parameterized using cumulative COVID-19 mortality data from each of the two countries.

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