Enrika Hlavacek
Provides GIS support for the Geospatial Sciences & Technologies Branch, including spatial analysis of biological resources data. Manages various geospatial tasks and provides project management in support of UMESC science.
Biography
Eduation:
- B.S. Geography, GIS Concentration - Univ. of Wisconsin - La Crosse, La Crosse, WI, 2011
- M.S. Geographic Information Systems - Univ. of Redlands, Redlands, CA, 2014
Research Interests:
- GIS data visualization
- Cartographic design
- Remote sensing applications, including light detection and ranging (lidar)
- Geoprocessing desktop and online tool development utilizing Python
- Open source GIS software
Current Projects:
- Deep learning for automated detection and classification of waterfowl, seabirds, and other marine wildlife from digital aerial imagery
- Database, visualization, and decision support tool development for UMESC eDNA monitoring and Asian carp projects
- Digital conversion, orthorectification, and archiving of historial aerial imagery datasets
Science and Products
Developing a Pre-Event Planning Tool for Modified Unified Method Fishing Events (Web Application)
The USGS is adapting the Chinese Unified Method, a fishing harvest method that uses herding techniques and a variety of nets to drive fish and concentrate them into a concentrated area for capture, in the fight against invasive Asian carps. This “Modified Unified Method” incorporates adapted techniques and modern technology for efficient, mass removal of bigheaded carp in North American waters...
Database and web application for invasive carp catch data (Illinois River Catch Database)
Four types of invasive carp are currently found in the United States: black, grass, silver, and bighead carps. These species are fast growing, prolific feeders that out-compete native fish species and drastically alter the natural ecosystems they invade. To prevent the spread of invasive carp into the Great Lakes, the multi-agency Asian Carp Regional...
Database and web application for invasive carp telemetry data (FishTracks)
Four types of invasive carp fish species, are currently found in the United States: black, grass, silver, and bighead carps. These species are fast growing, prolific feeders that out-compete native fish species and drastically alter the natural ecosystems they invade. To prevent the spread of invasive carp into the Great Lakes, the multi-agency Asian Carp...
Develop Orthophotos and Mosaics from systemic color infrared aerial photography of the Upper Mississippi River System from 1975, 1989, 1994, and 2000
The U.S. Army Corps of Engineers’ Upper Mississippi River Restoration (UMRR) Program Long Term Resource Monitoring (LTRM) element is implemented by the U.S. Geological Survey, Upper Midwest Environmental Sciences Center (UMESC), in cooperation with the five Upper Mississippi River System (UMRS) states of Illinois, Iowa, Minnesota, Missouri, and Wisconsin. Color infrared aerial photography was...
Deep Learning for Automated Detection and Classification of Waterfowl, Seabirds, and other Wildlife from Digital Aerial Imagery
In collaboration with the Bureau of Ocean Energy Management, U.S. Fish and Wildlife Service, and the Vision Group at the International Computer Science Institute at the University of California - Berkeley, the U.S. Geological Survey Upper Midwest Environmental Sciences Center is developing deep learning algorithms and tools for the automatic detection, enumeration, classification, and...
Decision Support Systems
A Decision Support System (DSS) can be defined in many ways. The working definition the Upper Midwest Environmental Sciences Center (UMESC) uses is, "A spatially based computer application or data that assists a researcher or manager in making decisions." This is quite a broad definition and it needs...
Visualizing proximity of non-native species to protected areas of the United States—A proximity visualization tool for BISON
The Proximity Visualization Tool is a simple lightweight tool that can be placed on web pages that allows users to identify non-native species near Department of Interior lands. The tool works by accessing the more than 400 million species occurrence records in the Biodiversity Information Serving Our Nation (BISON) database using the BISON...
Harrison, Travis J.; Hlavacek, Enrika; Dieck, Jennifer
Riparian forest cover modulates phosphorus storage and nitrogen cycling in agricultural stream sediments
Watershed land cover affects in-stream water quality and sediment nutrient dynamics. The presence of natural land cover in the riparian zone can reduce the negative effects of agricultural land use on water quality; however, literature evaluating the effects of natural riparian land cover on stream sediment nutrient dynamics is scarce. The...
Kreiling, Rebecca; Bartsch, Lynn A.; Perner, Patrik Mathis; Hlavacek, Enrika; Christensen, Victoria Mercury and water level management in lakes of northern Minnesota
Water level (WL) fluctuations substantially alter the fauna, flora, and microbial community of nearshore aquatic ecosystems. Water level management therefore has the potential to strongly influence a wide variety of ecosystem processes. Many northern temperate lake food webs experience substantial methylmercury contamination, which is partially...
Larson, James H.; Maki, Ryan P.; Christensen, Victoria; Hlavacek, Enrika; Sandheinrich, Mark B.; LeDuc, Jaime F.; Kissane, Claire; Knights, Brent C. USGS Illinois River monitoring and evaluation
Asian carp monitoring and contract removal will continue throughout the Upper Illinois Waterway system as needed for adaptive management to mitigate, control, and contain Asian carp. Compiling data from monitoring and removal efforts into a centralized database (Illinois River Catch Database application) facilitates data standardization, quality,...
Harrison, Travis J.; Hop, Kevin D.; Hlavacek, Enrika; Knights, Brent C. Preliminary analysis to estimate the spatial distribution of benefits of P load reduction: Identifying the spatial influence of phosphorus loading from the Maumee River (USA) in western Lake Erie
Since the early 2000s, Lake Erie has been experiencing annual cyanobacterial blooms that often cover large portions of the western basin and even reach into the central basin. These blooms have affected several ecosystem services provided by Lake Erie to surrounding communities (notably drinking water quality). Several modeling efforts have...
Larson, James H.; Hlavacek, Enrika; De Jager, Nathan R.; Evans, Mary Anne; Wynne, Timothy National Park Service Vegetation Mapping Inventory Program: Jean Lafitte National Historical Park and Preserve Vegetation Mapping Project
The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics. These reports are of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and...
Hop, Kevin D.; Strassman, Andrew C.; Sattler, Stephanie; Pyne, Milo; Teague, Judy; White, Rickie; Ruhser, Janis; Hlavacek, Enrika; Dieck, Jennifer National Park Service Vegetation Mapping Inventory Program: Appalachian National Scenic Trail vegetation mapping project
The National Park Service (NPS) Vegetation Mapping Inventory (VMI) Program classifies, describes, and maps existing vegetation of national park units for the NPS Natural Resource Inventory and Monitoring (I&M) Program. The NPS VMI Program is managed by the NPS I&M Division and provides baseline vegetation information to the NPS Natural...
Hop, Kevin D.; Strassman, Andrew C.; Hall, Mark; Menard, Shannon; Largay, Ery; Sattler, Stephanie; Hoy, Erin E.; Ruhser, Janis; Hlavacek, Enrika; Dieck, Jennifer Automated lidar-derived canopy height estimates for the Upper Mississippi River System
Land cover/land use (LCU) classifications serve as important decision support products for researchers and land managers. The LCU classifications produced by the U.S. Geological Survey’s Upper Midwest Environmental Sciences Center (UMESC) include canopy height estimates that are assigned through manual aerial photography interpretation techniques...
Hlavacek, Enrika