%0 Journal Article %T Crossİ\scale dynamics in community and disease ecology: relative timescales shape the community ecology of pathogens %A Alex %A Elizabeth T. Borer %A Eric W. Seabloom %A Lauren G. Shoemaker %A er T. Strauss %J Ecology - Wiley Online Library %D 2019 %R https://doi.org/10.1002/ecy.2836 %X Communities of freeİ\living organisms are shaped by processes operating within and among patches of habitat, whereas pathogen communities are shaped by analogous processes operating within and among hosts. Resource competition (R*) theory can describe dynamics within patches or hosts, and metacommunity dynamics describe competition¨Ccolonization tradeİ\offs, extinction debts, and superinfection. However, models at this broader scale often assume instantaneous competitive exclusion in coİ\inhabited patches or coİ\infected hosts. Impacts of more gradual competitive exclusion on the abundance, distribution, and diversity of species are less clear. Here, we nest a general resource competition model within a metacommunity framework and manipulate the relative timescales for processes operating within and among patches/hosts. We focus on superinfection in pathogen communities. We compare cases where transmission depends on infection prevalence vs. the abundance of pathogens within hosts. Surprisingly, slowing the relative pace of competitive exclusion within hosts can decrease infection prevalence of the inferior competitor and increase prevalence of the superior competitor, depending on transmission and virulence. Slower withinİ\host dynamics reduce the abundance of both pathogens within hosts and promote diversity at multiple scales: coİ\infections within individual hosts and coİ\occurrence in the host population. These results highlight surprising feedbacks that can emerge across scales and reinforce the rich crossİ\scale connections between community and disease ecology. Data are available on the Dryad Digital Repository: https://doi.org/10.5061/dryad.rd435pq Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article %U https://esajournals.onlinelibrary.wiley.com/doi/full/10.1002/ecy.2836