The Mysteries of
Easter Island Caves
This vivid, image-driven presentation covers recent discoveries and interpretations of over five years of research on "Te Pito o Te Henua" (or Navel of the World). Jut Wynne provides an overview of the natural history and ancient human settlement, as well as discusses new species discoveries and archaeological findings from Easter Island caves. The discovery of several new insect species suggests these animals may have retreated underground as the ancient Rapanui cleared the forest to make room for burgeoning villages, platforms with towering moai statues, and extensive fields of taro, sweet potatoes and sugar cane. (1:02:30) Download a copy (76 MB)
What is the NSS Youth Group Liaison Committee?
Cave Biota of
Great Basin N.P.
Great Basin National Park, located in the Basin and Range province in Nevada, contains 43 known caves. The park is located in the southern Snake Range and despite being isolated from other mountain ranges and caves by hotter, drier basins, is home to fascinating subterranean creatures. Bioinventories in recent years have revealed new species to science and have shed light about additional habitats that some species occupy. Take a peek at the underground fauna during this webinar and learn more about cave ecology. (1:06:50) Download a copy (79 MB)
The Edwards Aquifer of South Central Texas -
An Aquifer Under Stress
The Edwards Aquifer is one of the most prolific karst aquifers in the United States. The Edwards is the primary water source for more than two million people in the San Antonio area and also provides water for industry, agriculture, and recreational purposes. Water discharging from the aquifer forms Comal and San Marcos springs, two of the largest springs in the southwestern US and provides habitat for a number of endangered species. Development pressures on the aquifer threaten caves, recharge, and water quality. Pumping of water from the aquifer threatens discharge from the springs. This presentation will discuss some of the management and research issues of this important karst aquifer. (1:12:37) Download a copy (106 MB)
(1:25:47 Download a copy (92 MB)
by Marcus Gary, Reuben Reyes,
Page visits since 18 January 2013: 10548