Characterizing Insect Communities and Insect-mediated Ecosystem Processes in Aspen-dominated Forests

We are measuring insect species composition and exploring the influence of insect community structure and composition on ecosystem processes in aspen-dominated forests in northern Wisconsin and the Upper Peninsula of Michigan. Three primary drivers of insect population dynamics in forests are (1) the abiotic controls of climate (e.g., temperature, humidity), (2) the bottom-up effects of plant quality (e.g., foliar nitrogen and secondary chemicals), and (3) the top-down effects of predation and parasitism. We aim to use in situ measurements along with remotely-sensed imagery to better understand the mechanisms that drive insect population dynamics and how insect populations may influence forest ecosystem functioning.

Insect frass (fecal matter) collection devices (laundry baskets and a sheet)

Close up of insect frass, an indicator of quality of aspen foliage.

 

Lab Members:

Alex Brito