Data
Below is a list of current Data Resources available from NOROCK. If you are in search of specific resources, please email twojtowicz@usgs.gov.
Filter Total Items: 139
Elk movement and predicted number of brucellosis-induced abortion events in the southern Greater Yellowstone Ecosystem (1993-2015) Elk movement and predicted number of brucellosis-induced abortion events in the southern Greater Yellowstone Ecosystem (1993-2015)
Using data from 288 adult and yearling female elk that were captured on 22 winter supplemental elk feedgrounds in Wyoming and monitored with GPS collars from 2007 - 2015, we fit Step Selection Functions (SSFs) during the spring abortion season and then implemented a master equation approach to translate SSFs into predictions of daily elk distribution for five plausible winter weather...
Potential movement paths for male grizzly bear (Ursus arctos) dispersal between the Northern Continental Divide and Greater Yellowstone Ecosystems, 2000-2015 Potential movement paths for male grizzly bear (Ursus arctos) dispersal between the Northern Continental Divide and Greater Yellowstone Ecosystems, 2000-2015
For several decades, grizzly bear (Ursus arctos) populations in the Greater Yellowstone Ecosystem (GYE) and the Northern Continental Divide Ecosystem (NCDE) have increased in numbers and range extent. Whereas the NCDE population is contiguous with grizzly bear populations in the Canadian Rocky Mountains, genetic evidence suggests the GYE population remains isolated. Recent analyses...
Robert Fire Montana Tailed Frog Data 2001-2015 Robert Fire Montana Tailed Frog Data 2001-2015
The data represent counts of Rocky Mountain Tailed Frog larvae from 8 streams in Glacier National Park, Montana. Each stream was surveyed during 5 different years. We originally sampled the eight streams during June 2001 to evaluate a time-constrained method for potential inclusion in a monitoring program. We sampled streams by turning rocks and disturbing the substrate in front of D...
Conventional and quantitative PCR assays for detecting Tetracapsuloides bryosalmonae in fish tissue and environmental DNA water samples Conventional and quantitative PCR assays for detecting Tetracapsuloides bryosalmonae in fish tissue and environmental DNA water samples
We developed and validated conventional and quantitative real-time PCR assays for the detection of DNA from the myxozoan parasite Tetracapsuloides bryosalmonae, the causative agent of proliferative kidney disease in fish. Assays were tested on fish tissue and on field-collected water samples to assess diagnostic and environmental DNA capabilities. The specificity, sensitivity, and broad...
Glacier margin time series (1966, 1998, 2005, 2015) of the named glaciers of Glacier National Park, MT, USA Glacier margin time series (1966, 1998, 2005, 2015) of the named glaciers of Glacier National Park, MT, USA
This dataset was created to develop a time series and history of glacier recession in Glacier National Park (GNP), Montana, USA. The dataset delineates the 1966, 1998, 2005 and 2015 perimeters of the 37 named glaciers of Glacier National Park and two additional glaciers on U.S. Forest Services Flathead National Forest land (the Bob Marshall Wilderness Complex) which borders GNP to the...
R code for fitting and simulation study for zero-augmented beta model with errors R code for fitting and simulation study for zero-augmented beta model with errors
Code for implementing the Zero-Augmented Beta Model with Errors (ZABE) , simulation study code, and code for assessing trade-offs in study design via simulations.
Northern Continental Divide Ecosystem grizzly bear (Ursus arctos) genetic profiles, 1998-2012 Northern Continental Divide Ecosystem grizzly bear (Ursus arctos) genetic profiles, 1998-2012
Two independent sampling methods were used to collect genetic samples from grizzly bears (Ursus arctos): (i) hair trapscorrals of barbed wire with lure in the center systematically distributed using an 8 x 8 km (1998, 2000) or 7 x 7 km (2004) grid and (ii) bear rubsnaturally occurring trees or other objects that bears rub on fitted with barbed wire (19982000, 2004, and 20092012). From...