Jeffrey A Bell Alan Fecchio Sergei V. Drovetski Spencer C Galen Shannon Hackett Holly L Lutz Heather Skeen Gary Voelker Wanyoike Wamiti Jason D Weckstein Nicholas J. Clark Konstans Wells 2024 <p>Changing biodiversity and environmental conditions may allow multi-host pathogens to spread among host species and affect prevalence. There are several widely acknowledged theories about mechanisms that may influence variation in pathogen prevalence, including the controversially debated dilution effect and abundance-occupancy relationship hypotheses. Here, we explore such abundance-occupancy relationships for unique lineages of three vector-borne avian blood parasite genera (the avian malaria parasite<span>&nbsp;</span><i>Plasmodium</i><span>&nbsp;</span>and the related haemosporidian parasites<span>&nbsp;</span><i>Parahaemoproteus</i><span>&nbsp;</span>and<span>&nbsp;</span><i>Leucocytozoon</i>) across biogeographical regions.</p> application/pdf 10.1111/jbi.15015 en Wiley Parasite abundance-occupancy relationships across biogeographic regions: Joint effects of niche breadth, host availability and climate article