Microbiology of a Hot Spring
This all-day workshop is a primer for cave geo-microbiology using Monte Neva Hot Spring as an analog site. Lunch is included in your registration.
Microbial ecology is one of the most understudied and underappreciated components of cave systems. This is true for how microorganisms are viewed as part of the ecosystem within the caves and as a force that shapes the lithology of caves themselves. Every cave is slightly different, and the specifics of the local geology, cave hydrology, cave geochemistry, and other associated environmental conditions (temperature, humidity, ect.) set up gradients that will alter the cave ecosystem and change the role that microbes play in shaping the ecosystem and cave around them.
Microorganisms can serve many roles within caves and are predominantly thought of as filling the role of decomposers. Although this is true, microorganisms can also be drivers for geologic change in cave systems with increasing numbers of known microbially-induced mineral formations and examples of microbial metabolisms directly leading to cave formation; with the most dramatic of these examples being Lechuguilla Cave in New Mexico and in the Iron Formation Caves of Brazil. Microorganisms' metabolism can directly impact the host rock to solubilize it and enlarge the cave, or form speleothems by precipitating out minerals in a process of biomineralization.
During this workshop we will go on a field trip to Melvin Hot Spring (Monte Neva) and learn first-hand about the interplay between microorganisms, geology, geochemistry, and the role of gradients in microbial ecology. The hot spring setting will serve as an analog cave where we will use a variety of microbiology, geochemistry, and other state-of-the-art geologic tools to analyze this unstudied system. The tools, techniques, and approach used during this workshop are similar to those used in cave microbial ecology studies.
From this workshop you will:
Understand the foundational role microorganisms play in extremophile ecosystems.
Gain a first-hand exposure of the intertwined relationship between the geology and microbiology.
Take part in a geo-microbiology sampling campaign designed similar to cave-microbiology research.
Conduct experiments that can be performed at your cave to teach visitors about microbial ecology.
Cave microbiology is a relatively new field and in your role as a cave manager, we hope to promote both conservation and science. It is our goal that you will leave this workshop with an appreciation for the wide variety of ways cave microbial-ecology can manifest in your cave system so that you can help to (I) conserve these ecosystems and (II) help cave scientists by being on the lookout for new microbial cave phenomenon.