@article{reiskind_janairo_2018, title={Tracking Aedes aegypti (Diptera: Culicidae) Larval Behavior Across Development: Effects of Temperature and Nutrients on Individuals’ Foraging Behavior}, volume={55}, ISSN={0022-2585 1938-2928}, url={http://dx.doi.org/10.1093/jme/tjy073}, DOI={10.1093/jme/tjy073}, abstractNote={Abstract Immature mosquitoes alter their foraging behavior in response to variation in nutrients, predators, and temperature, with consequences on the adult stage where pathogens are transmitted. These patterns of behavior have not been described with respect to both developmental stage and environmental variation, nor has behavior been examined within an individual across instars. We hypothesized that individual larvae have distinct behavioral syndromes, and predict that the rank of foraging activity in the third instar will be correlated with foraging activity in the fourth instar for an individual across all conditions. We also hypothesized that individuals that fail to achieve adulthood forage more intensely than those that will emerge due to the need for greater resources. To examine these hypotheses, we conducted an experiment in which we exposed 96 individual Aedes aegypti L. (Diptera: Culicidae) larvae to four combinations of temperature and nutrients. We recorded larvae in the third and fourth instar, and generated time budgets of active and passive foraging behaviors. We found correlations between individual behavior in the third and fourth instar when conditions were the most stressful (cool temperatures and low nutrients). Controlling for this intra-individual behavior, there was variation between instar behaviors, but this was dependent on both temperature and nutrients. We also found that larvae that failed to pupate within 28 d before emergence foraged more intensely than those that emerged. While we found no evidence that mosquitoes have distinct behavioral syndromes in Ae. aegypti, we did find support that nutrients and temperature affect behavior differently at different instars.}, number={5}, journal={Journal of Medical Entomology}, publisher={Oxford University Press (OUP)}, author={Reiskind, Michael H and Janairo, M Shawn}, year={2018}, month={May}, pages={1086–1092} } @article{reiskind_griffin_janairo_hopperstad_2016, title={Mosquitoes of field and forest: the scale of habitat segregation in a diverse mosquito assemblage}, volume={31}, ISSN={0269-283X}, url={http://dx.doi.org/10.1111/mve.12193}, DOI={10.1111/mve.12193}, abstractNote={AbstractKnowledge of the distribution of arthropod vectors across a landscape is important in determining the risk for vector‐borne disease. This has been well explored for ticks, but not for mosquitoes, despite their importance in the transmission of a variety of pathogens. This study examined the importance of habitat, habitat edges, and the scale at which mosquito abundance and diversity vary in a rural landscape by trapping along transects from grassland areas into forest patches. Significant patterns of vector diversity and distinct mosquito assemblages across habitats were found. The scale of individual species' responses to habitat edges was often dramatic, with several species rarely straying even 10 m from the edge. The present results suggest blood‐seeking mosquito species are faithful to certain habitats, which has consequences for patterns of vector diversity and risk for pathogen transmission. This implies that analysts of risk for pathogen transmission and foci of control, and developers of land management strategies should assess habitat at a finer scale than previously considered.}, number={1}, journal={Medical and Veterinary Entomology}, publisher={Wiley}, author={Reiskind, M. H. and Griffin, R. H. and Janairo, M. S. and Hopperstad, K. A.}, year={2016}, month={Oct}, pages={44–54} } @article{reiskind_janairo_2015, title={Late-instar Behavior of Aedes aegypti (Diptera: Culicidae) Larvae in Different Thermal and Nutritive Environments}, volume={52}, ISSN={["1938-2928"]}, DOI={10.1093/jme/tjv088}, abstractNote={ABSTRACT The effects of temperature on ectotherm growth have been well documented. How temperature affects foraging behavior is less well explored, and has not been studied in larval mosquitoes. We hypothesized that temperature changes foraging behavior in the aquatic larval phase of the mosquito, Aedes aegypti L. Based on empirical results in other systems, we predicted that foraging effort would increase at higher temperatures in these insects. We tested this prediction over three temperature conditions at two food levels. We measured behaviors by video recording replicated cohorts of fourth-instar mosquitoes and assessing individual behavior and time budgets using an ethogram. We found both food level and temperature had significant impacts on larval foraging behavior, with more time spent actively foraging at low food levels and at low temperatures, and more occurrences of active foraging at both temperature extremes. These results are contrary to some of our predictions, but fit into theoretical responses to temperature based upon dynamic energy budget models.}, number={5}, journal={JOURNAL OF MEDICAL ENTOMOLOGY}, author={Reiskind, Michael H. and Janairo, M. Shawn}, year={2015}, month={Sep}, pages={789–796} }