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Supporting data for streamflow permanence studies in the Huachuca Mountains, Arizona, 2010-2014. Supporting data for streamflow permanence studies in the Huachuca Mountains, Arizona, 2010-2014.
This Data Release provides supporting data to characterize and identify influences of streamflow permanence in headwater streams in the Huachuca Mountains, Arizona, U.S.A. Relative conductivity as a proxy for surface water presence was measured in headwater streams in the Huachuca Mountains from 2010-2014. These data are summarized as mean daily values. Geologic influences on the timing...
Uranium and Strontium geochronology data for marine terraces on Santa Rosa Island, Channel Islands National Park, California, USA Uranium and Strontium geochronology data for marine terraces on Santa Rosa Island, Channel Islands National Park, California, USA
Studies of marine terraces and their fossils can yield important information about sea level history, tectonic uplift rates, and paleozoogeography. The marine terrace record on Santa Rosa Island, California is complex. Two prominent low-elevation terraces appear to record the ~80 ka (MIS 5a) and ~120 ka (MIS 5e) high-sea stands, based on U-series dating of fossil corals, but...
Stream temperature observations during summer 2021 for sites in the Antietam Creek watershed, Maryland Stream temperature observations during summer 2021 for sites in the Antietam Creek watershed, Maryland
This Data Release contains stream temperature observations for 28 sites in the Antietam Creek Watershed (Maryland) during summer 2021. Data were collected using Onset ProV2 temperature gages within perforated PVC cases attached to stream substrates with rebar. Temperature gages were deployed and retrieved by volunteers with the Antietam-Conococheague Watershed Alliance. Temperature...
PRISM4 (mid-Piacenzian) Paleoenvironmental Reconstruction Data PRISM4 (mid-Piacenzian) Paleoenvironmental Reconstruction Data
The mid-Piacenzian is known as a period of relative warmth when compared to the present day. A comprehensive understanding of conditions during the Piacenzian serves as both a conceptual model and a source for boundary conditions as well as means of verification of global climate model experiments. These data are provided as digital representations of mid Pliocene boundary conditions...
Data regarding the efficacy of management practices for controlling gull use of Common Tern nesting colonies Data regarding the efficacy of management practices for controlling gull use of Common Tern nesting colonies
These data, which support a paired USGS publication, describe the efficacy of several management practices for reducing the presence of herring gulls in the nesting colonies of Common Terns. This data was collected on Poplar Island, located in the Chesapeake Bay portion of Maryland.
Water Chemistry and Smallmouth Bass Biological Data From the Potomac River, Dargan, Maryland, 2013-2019 Water Chemistry and Smallmouth Bass Biological Data From the Potomac River, Dargan, Maryland, 2013-2019
Decades of poor reproductive success and young-of-the-year recruitment, in addition to adult mortality, has led to a decline in the smallmouth bass (SMB) population in subwatersheds of the Potomac River. Previous studies have identified numerous biologic and environmental stressors associated with negative effects on SMB health. To better understand the impact of these stressors, the...