Among fundamental research questions in subterranean biology, the role of subterranean
microbiomes playing in key elements cycling is a top-priority one. Karst caves are widely …

Microorganisms have long been known to mediate manganese (Mn) oxidation in a variety of
environments, including caves. Microbial Mn oxide minerals are typically dark brown to …

The upper Tennessee River Basin contains the highest density of our nation's caves; yet,
little is known regarding speleogenesis or Fe and Mn biomineralization in these …

Manganese (Mn) oxides participate in a range of interactions with organic carbon (OC) that
can lead to either carbon degradation or preservation. Here, we examine the abundance …

Lead is a toxic environmental contaminant associated with current and historic mine sites.
Here we studied the natural attenuation of Pb in a limestone cave system that receives …

Caves are dark subsurface environments with relatively constant temperatures that allow
studying bio-mineralization processes and paleoenvironmental or climate changes in …

Caves formed by sulfuric acid dissolution have been identified worldwide. These caves can
host diverse microbial communities that are responsible for speleogenesis and speleothem …

Little is known about the fungal role in biogeochemical cycling in oligotrophic ecosystems.
This study compared fungal communities and assessed the role of exogenous carbon on …

Cave ecosystems are carbon limited and thus are particularly susceptible to anthropogenic
pollution. Yet, how carbon quality and quantity that can modulate the pathways and amount …

Detrital sediment in Florida's (USA) submerged cave systems may preserve records of
regional climate and hydrologic variability. However, the basic sedimentology, mineralogy …