Page 14: Research news on forest ecosystems

Forest ecosystems are complex, multiscale ecological systems dominated by tree communities and structured by vertical stratification (canopy, understory, forest floor) that regulate energy flow, biogeochemical cycles, and habitat availability. They integrate interactions among primary producers, heterotrophs, decomposers, and abiotic factors such as climate, soils, and hydrology, resulting in distinct successional dynamics and disturbance regimes (e.g., fire, windthrow, pest outbreaks). Forest ecosystems play central roles in carbon sequestration, nutrient cycling, and water regulation, exhibit high spatial heterogeneity and biodiversity, and are key model systems for studying resilience, feedbacks between vegetation and climate, and anthropogenic impacts such as fragmentation, land-use change, and altered disturbance frequencies.

Urban park soil microbes reveal function–evolution trade-off

Urban parks are a vital component of urban ecosystems and provide distinctive habitats for soil microorganisms. Yet scientists have questioned whether—and how—the functional diversity and evolutionary potential of microbial ...

Forest exhibits resilience after California mega fire

In 2019 and again in 2021, Penn State researchers in the Department of Geography walked a series of 1,000 square foot plots in California's Lassen Volcanic National Park. The goal was to see how the forest that's hands-off ...

page 14 from 37