Publications

TitleAbstractYear
Filter
PMID
Filter
abiotic mediation of a mutualism drives herbivore abundance.species abundance is typically determined by the abiotic environment, but the extent to which such effects occur through the mediation of biotic interactions, including mutualisms, is unknown. we explored how light environment (open meadow vs. shaded understory) mediates the abundance and ant tending of the aphid aphis helianthi feeding on the herb ligusticum porteri. yearly surveys consistently found aphids to be more than 17-fold more abundant on open meadow plants than on shaded understory pl ...201626563752
multitrophic interactions mediate the effects of climate change on herbivore abundance.climate change can influence the abundance of insect herbivores through direct and indirect mechanisms. in this study, we evaluated multitrophic drivers of herbivore abundance for an aphid species (aphis helianthi) in a subalpine food web consisting of a host plant (ligusticum porteri), mutualist ants and predatory lygus bugs (lygus spp.). we used a model-selection approach to determine which climate and host plant cues best predict year-to-year variation in insect phenology and abundance observ ...201728891026
Displaying items 1 - 2 of 2