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Incorporating The “Invisibles” In Ant Seed Dispersal: Microbial Mortality Agents In Myrmecochory, Chloe L. Lash
Incorporating The “Invisibles” In Ant Seed Dispersal: Microbial Mortality Agents In Myrmecochory, Chloe L. Lash
Doctoral Dissertations
Ant-mediated seed dispersal, myrmecochory, is a diffuse mutualism in which ants are rewarded for seed dispersal services with food via a seed-coat derived appendage, the elaiosome. Seeds gain dispersal benefits including escape from distance- and density- dependent mortality agents, protection from seed predators, and a nutrient-rich germination site in or near ant nests. However, microbes, have been essentially overlooked in this mutualism, despite their pathogenicity to the ants and plants involved. The work presented here investigates the effects of microbial mortality agents on the risks and benefits offered to ant and plant partners in myrmecochory. First, I investigate the effects …