Patterns and Consequences of Monarch Wintering Behavior in the Southeastern US. Hovland, C. P. Ph.D. Thesis, December, 2025. ![Patterns and Consequences of Monarch Wintering Behavior in the Southeastern US [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex Eastern North American monarchs (Danaus plexippus) employ a diversity of overwintering behaviors, including long distance migration to central Mexico, but also winter-breeding and non-breeding overwintering in the southeastern United States. Winter-breeding alters infectious disease dynamics, increasing the prevalence of the monarch parasite Ophryocystis elektroscirrha (O.E.) in winter-breeding populations. I modeled interactions between returning spring migrants and resident winter-breeding monarchs in a simulated habitat patch and found that fewer new migrants were recruited from the patch into the migration when residents were present, and that migrants eclosing in habitat patches shared with residents were more likely to be parasitized than in habitat used only by migrants. Additionally, I fit logistic regression models to associate the breeding status of winter monarchs in the Southeast with habitat characteristics. My results concur with the idea that winter-breeding monarchs use human-modified habitat and suggest non-breeding monarchs may winter in wetlands in warm regions
@phdthesis{hovland_patterns_2025,
title = {Patterns and {Consequences} of {Monarch} {Wintering} {Behavior} in the {Southeastern} {US}},
url = {https://openscholar.uga.edu/record/27798},
abstract = {Eastern North American monarchs (Danaus plexippus) employ a diversity of overwintering behaviors, including long distance migration to central Mexico, but also winter-breeding and non-breeding overwintering in the southeastern United States. Winter-breeding alters infectious disease dynamics, increasing the prevalence of the monarch parasite Ophryocystis elektroscirrha (O.E.) in winter-breeding populations. I modeled interactions between returning spring migrants and resident winter-breeding monarchs in a simulated habitat patch and found that fewer new migrants were recruited from the patch into the migration when residents were present, and that migrants eclosing in habitat patches shared with residents were more likely to be parasitized than in habitat used only by migrants. Additionally, I fit logistic regression models to associate the breeding status of winter monarchs in the Southeast with habitat characteristics. My results concur with the idea that winter-breeding monarchs use human-modified habitat and suggest non-breeding monarchs may winter in wetlands in warm regions},
language = {eng},
urldate = {2026-06-01},
author = {Hovland, Charlotte Pastor},
collaborator = {Altizer, Sonia and Hall, Richard and Lunn, Tamika},
month = dec,
year = {2025},
keywords = {NALCMS},
}
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