|2007 - Present||Research Scientist, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|2001 - 2007||Research Assistant, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
- Thesis MEVS-5028
- Thesis MEVS-5039
- Thesis OCMB-6900
- Thesis MSMS-6400
|2004 - 2008||PhD, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|1997 - 2002||MS, Nova Southeastern University ‐ Halmos College of Natural Sciences and Oceanography|
|1992 - 1995||BA, Florida State University ‐ college of arts and sciences|
Brian K. Walker
GIS and Spatial Ecology Lab
Nova Southeastern University
Halmos College of Natural Sciences and Oceanography
8000 N. Ocean Drive, Dania Beach, FL 33004
Shallow-Water Coral Communities Support the Separation of Marine Ecoregions on the West-Central Florida Gulf Coast Frontiers in Ecology and Evolution (2020)
Florida’s west coast is a 170,000 km2 bedrock shelf (west Florida shelf, WFS) comprised of north-south discontinuous carbonate outcroppings extending more than 200 km from the intertidal zone to a depth of 200 m. These ...
Fine-Scale Coral Connectivity Pathways in the Florida Reef Tract: Implications for Conservation and Restoration Frontiers in Marine Science (2020)
Connectivity between coral reefs is critical to ensure their resilience and persistence against disturbances. It is driven by ocean currents, which often have very complex patterns within reef systems. Only biophysical models that simulate both ...
Antibiotic Resistance in Marine Microbial Communities Proximal to a Florida Sewage Outfall System Antibiotics (2020)
Water samples were collected at several wastewater treatment plants in southeast Florida, and water and sediment samples were collected along and around one outfall pipe, as well as along several transects extending both north and ...
Identifying Causes of Temporal Changes in Acropora cervicornis Populations and the Potential for Recovery Frontiers in Marine Science (2019)
Corals, specifically the Atlantic staghorn coral, Acropora cervicornis, are under major threat as disturbance events such as storms and disease and predation outbreaks increase in frequency. Since its population declines due to a wide spread ...
Non‐Linear Thresholds Characterize the Relationship Between Reef Fishes and Mangrove Habitat Ecosphere (2017)
A significant obstacle to evaluating the importance of mangrove habitat to coral reef fishes has been the difficulty of disentangling its effects from other subtidal/nearshore habitats or human population pressures. Florida's seascape, unlike most others, ...
Investigating the Spatial Distribution and Effects of Nearshore Topography on Acropora cervicornis Abundance in Southeast Florida PeerJ (2016)
Dense Acropora cervicornis aggregations, or patches, have been documented within nearshore habitats in Southeast Florida (SE FL) despite close proximity to numerous anthropogenic stressors and subjection to frequent natural disturbance events. Limited information has been ...
Demographics of a Nearshore Mating Queen Conch (Lobatus gigas) Aggregation on the Southeast Florida Reef Tract Bulletin of Marine Science (2016)
The queen conch, Lobatus gigas (Linnaeus, 1758), is a large gastropod found throughout the Caribbean region, including off Florida. The extent, habitat association, and population demographics of an aggregation were investigated off southeast Florida near ...
Possible Recovery of Acropora palmata (Scleractinia:Acroporidae) Within the Veracruz Reef System, Gulf of Mexico: A Survey of 24 Reefs to Assess the Benthic Communities Revista de Biologia Tropical (2014)
Recent evidence shows that Acropora palmata within the Veracruz Reef System, located in the southwestern Gulf of Mexico, may be recovering after the die off from the flooding of the Jamapa River and a dramatic ...
Determining the Extent and Characterizing Coral Reef Habitats of the Northern Latitudes of the Florida Reef Tract (Martin County) PLoS One (2013)
Climate change has recently been implicated in poleward shifts of many tropical species including corals; thus attention focused on higher-latitude coral communities is warranted to investigate possible range expansions and ecosystem shifts due to global ...
Habitat Characterization, Distribution, and Areal Extent of Deep-sea Coral Ecosystems off Florida, Southeastern U.S.A. Caribbean Journal of Science (2013)
The deep-sea (200-1000 m) seafloor off the southeastern U.S. has a variety of extensive deep-sea coral ecosystem (DSCE) habitats including: deep-water coral mounds; various hard-bottom habitats off Florida including the Miami Terrace, Pourtales Terrace, and ...
Small-Scale Mapping of Indeterminate Arborescent Acroporid Coral (Acropora cervicornis) Patches Coral Reefs (2012)
Western Atlantic populations of the staghorn coral Acropora cervicornis have drastically declined over the past few decades. Hence, interest in its ecology and spatial extent has increased. Acroporid corals with indeterminate arborescent growth like A.cervicornis ...
Spatial Analyses of Benthic Habitats to Define Coral Reef Ecosystem Regions and Potential Biogeographic Boundaries along a Latitudinal Gradient PLoS One (2012)
Marine organism diversity typically attenuates latitudinally from tropical to colder climate regimes. Since the distribution of many marine species relates to certain habitats and depth regimes, mapping data provide valuable information in the absence of ...
Elevated Sedimentation on Coral Reefs Adjacent to a Beach Nourishment Project Marine Pollution Bulletin (2010)
An increasingly common method to restore eroding beaches is nourishment, a process by which lost sand is replaced with terrestrial or offshore sediments to widen beaches. The southeastern Florida coastline contains shore-parallel coral reef communities ...
Interpretation of Single-Beam Acoustic Backscatter Using Lidar-Derived Topographic Complexity and Benthic Habitat Classifications in a Coral Reef Environment Journal of Coastal Research (2009)
Producing thematic coral reef benthic habitat maps from single-beam acoustic backscatter has been hindered by uncertainties in interpreting the acoustic energy parameters E1 (tail of 1st echo) and E2 (complete 2nd echo), typically limiting such ...
Relationship of Reef Fish Assemblages and Topographic Complexity on Southeastern Florida Coral Reef Habitats Journal of Coastal Research (2009)
Reef fish assemblage relationships with in situ and lidar topographic measurements across the seascape were analyzed to evaluate the possibility of using lidar metrics as a proxy for prediction models. In situ topographic complexity (i.e., ...
Mapping Coral Reef Habitats in Southeast Florida Using a Combined Technique Approach Journal of Coastal Research (2008)
To create maps of nearshore benthic habitats of Broward County, Florida, from 0 to 35 m depth, we combined laser bathymetry, acoustic ground discrimination, subbottom profiling, and aerial photography data in a geographic information system ...
A Tale of Germs, Storms, and Bombs: Geomorphology and Coral Assemblage Structure at Vieques (Puerto Rico) Compared to St. Croix (U.S. Virgin Islands) Journal of Coastal Research (2008)
The former U.S. Navy range at Vieques Island (Puerto Rico, United States) is now the largest national wildlife refuge in the Caribbean. We investigated the geomorphology and benthic assemblage structure to understand the status of ...
Fish Assemblages Associated with Artificial Reefs of Concrete Aggregates or Quarry Stone Offshore Miami Beach, Florida, USA Aquatic Living Resources (2002)
Few studies have compared the suitability of different artificial reef construction materials in terms of their efficacy in acquiring diverse faunal assemblages. We compared the fishes associated with 12 co-located reefs constructed of limestone quarry ...
Gross Brain Morphology in the Yellow Stingray, Urobatis jamaicensis Florida Scientist (2001)
The yellow stingray, Urobatis jamaicensis (family Urolophidae), a short-lived, relatively small elasmobranch species (35--40 cm total length), is a common inhabitant of hard bottom and coral reef communities in southeastern Florida and many parts of ...