One paradigm in biogeochemistry is that frequent disturbance tends to deplete carbon (C) in
soil organic matter (SOM) by reducing biomass inputs and promoting losses. However …

The study of positive species interactions is a rapidly evolving field in ecology. Despite
decades of research, controversy has emerged as to whether positive and negative …

1. This review synthesizes evidence that altered fire frequency drives discontinuous
ecosystem transitions from mesic grasslands to shrublands or woodlands in the Central …

Once dominant but now largely excluded from eastern North America, open forests of
savannas to woodlands occupy the ecosystem gradient between grasslands and closed …

Disturbances and environmental heterogeneity are two factors thought to influence plant
species diversity, but their effects are still poorly understood in many ecosystems. We …

Fires shape the biogeochemistry and functioning of many ecosystems, and fire frequencies
are changing across much of the globe. Frequent fires can change soil carbon (C) and …

Prescribed fire is often used in upland oak forests to achieve objectives related to woodland
restoration or oak regeneration. While not uncommon for prescriptions to include repeated …

This chapter summarizes some of the points of contention related to understanding the
distribution and determinants of savanna ecosystems worldwide, and describes some …

In grasslands and savannas, fire regime—frequently a major determinant of woody
encroachment, herbaceous species composition and diversity, and nutrient cycling—is …

Across much of the eastern United States, oak forests are undergoing mesophication as
shade‐tolerant competitors become more abundant and suppress oak regeneration. Given …