Publications
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Nocturnal and diurnal activity of armored suckermouth catfish (Loricariidae: Pterygoplichthys) associated with wintering Florida manatees (Trichechus manatus latirostris) Nocturnal and diurnal activity of armored suckermouth catfish (Loricariidae: Pterygoplichthys) associated with wintering Florida manatees (Trichechus manatus latirostris)
Several Pterygoplichthys species, members of the Neotropical catfish family Loricariidae, have been widely introduced outside their native ranges. In this paper, I present observations on the diel activity pattern of non-native Pterygoplichthys, tentatively identified as P. disjunctivus, with respect to their attachment and grazing on endangered Florida manatees, Trichechus manatus...
Authors
Leo G. Nico
Low genetic variation and evidence of limited dispersal in the regionally important Belize manatee Low genetic variation and evidence of limited dispersal in the regionally important Belize manatee
The Antillean subspecies of the West Indian manatee Trichechus manatus is found throughout Central and South America and the Caribbean. Because of severe hunting pressure during the 17th through 19th centuries, only small populations of the once widespread aquatic mammal remain. Fortunately, protections in Belize reduced hunting in the 1930s and allowed the country's manatee population...
Authors
M.E. Hunter, N. E. Auil-Gomez, K.P. Tucker, R. K. Bonde, J. Powell, P.M. McGuire
Effects of Hurricane Katrina on an incipient population of giant salvinia Salvinia molesta in the lower Pascagoula River, Mississippi Effects of Hurricane Katrina on an incipient population of giant salvinia Salvinia molesta in the lower Pascagoula River, Mississippi
The objectives of this study were to: 1) survey the lower Pascagoula River Basin and determine the post–storm distribution and abundance of giant salvinia; 2) control any remaining giant salvinia through physical and/or chemical means; 3) determine the fate of the bio–control agents; and 4) determine if re–introduction of salvinia weevils is needed and if so, to decide where best to...
Authors
Pam L. Fuller, Mike G. Pursley, Dale Diaz, Wesley Devers
Characterization of highly informative cross-species microsatellite panels for the Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) including five novel primers Characterization of highly informative cross-species microsatellite panels for the Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) including five novel primers
The Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) are threatened species of aquatic mammals in the order Sirenia. Sirenian conservation and management actions would benefit from a more complete understanding of genetic diversity and population structure. Generally, species-specific microsatellite markers are employed in conservation genetic studies...
Authors
Margaret Kellogg Hunter, Damien Broderick, Jennifer R. Ovenden, Kimberly Pause Tucker, Robert K. Bonde, Peter M. McGuire, Janet M. Lanyon
Challenges and opportunities for integrating lake ecosystem modelling approaches Challenges and opportunities for integrating lake ecosystem modelling approaches
A large number and wide variety of lake ecosystem models have been developed and published during the past four decades. We identify two challenges for making further progress in this field. One such challenge is to avoid developing more models largely following the concept of others (‘reinventing the wheel’). The other challenge is to avoid focusing on only one type of model, while...
Authors
Wolf M. Mooij, Dennis Trolle, Erik Jeppesen, George Arhonditsis, Pavel V. Belolipetsky, Deonatus B.R. Chitamwebwa, Andrey G. Degermendzhy, Donald L. DeAngelis, Lisette N. De Senerpont Domis, Andrea S. Downing, J. Alex Elliott, Carlos Ruberto Fragoso, Ursula Gaedke, Svetlana N. Genova, Ramesh D. Gulati, Lars Hakanson, David P. Hamilton, Matthew R. Hipsey, Jochem ’t Hoen, Stephan Hulsmann, F. Hans Los, Vardit Makler-Pick, Thomas Petzoldt, Igor G. Prokopkin, Karsten Rinke, Sebastiaan A. Schep, Koji Tominaga, Anne A. Van Dam, Egbert H. Van Nes, Scott A. Wells, Jan H. Janse
Can we improve the salinity tolerance of genotypes of Taxodium by using varietal and hybrid crosses? Can we improve the salinity tolerance of genotypes of Taxodium by using varietal and hybrid crosses?
Taxodium distichum (L.) Rich. var. distichum [baldcypress (BC)], Taxodium distichum var. mexicanum Gordon [Montezuma cypress (MC)], and a Taxodium hybrid (\'Nanjing Beauty\': BC x MC cross, T302) were evaluated for salt tolerance in 2006 at Nacogdoches, TX. Plants were irrigated weekly with four levels of salinity [0, 1, 3.5, and 6 ppt (0, 17, 60, and 102 mol*m-3)] for 13 weeks and then...
Authors
Lijing Zhou, David L. Creech, Ken W. Krauss, Yin Yunlong, David L. Kulhavy
Sapflow and water use of freshwater wetland trees exposed to saltwater incursion in a tidally influenced South Carolina watershed Sapflow and water use of freshwater wetland trees exposed to saltwater incursion in a tidally influenced South Carolina watershed
Sea-level rise and anthropogenic activity promote salinity incursion into many tidal freshwater forested wetlands. Interestingly, individual trees can persist for decades after salt impact. To understand why, we documented sapflow (Js), reduction in Js with sapwood depth, and water use (F) of baldcypress (Taxodium distichum (L.) Rich.) trees undergoing exposure to salinity. The mean Js...
Authors
K. W. Krauss, J.A. Duberstein
Efficacy of automatic vocalization recognition software for anuran monitoring Efficacy of automatic vocalization recognition software for anuran monitoring
Surveys of vocalizations are a widely used method for monitoring anurans, but it can be difficult to coordinate standardized data collection across a large geographic area. Digital automated recording systems (ARS) offer a low-cost method for obtaining samples of anuran vocalizations, but the number of recordings can easily overwhelm human listeners. We tested Song Scope, an automatic...
Authors
J. Hardin Waddle, Tyler F. Thigpen, Brad M. Glorioso
Satellite telemetry of marine megavertebrates: The coming of age of an experimental science Satellite telemetry of marine megavertebrates: The coming of age of an experimental science
Wildlife telemetry research has expanded greatly in the last 2 decades, with the application of satellite tracking and archival logging technologies to study the ecology and conservation of marine mammals, birds, fishes, and turtles. Widespread and expanding use of satellite tracking to study movements and habitats of marine megavertebrates warrants a review of progress to date and a...
Authors
Kristen M. Hart, K. David Hyrenbach
Coastline degradation as an indicator of global change Coastline degradation as an indicator of global change
Finding a climate change signal on coasts is more problematic than often assumed. Coasts undergo natural dynamics at many scales, with erosion and recovery in response to climate variability such as El Niño, or extreme events such as storms and infrequent tsunamis. Additionally, humans have had enormous impacts on most coasts, overshadowing most changes that one can presently attribute...
Authors
Robert J. Nicholls, Colin D. Woodroffe, Virginia Burkett
Factors Affecting Water Quality in Domestic Wells in the Upper Floridan Aquifer, Southeastern United States, 1998-2005 Factors Affecting Water Quality in Domestic Wells in the Upper Floridan Aquifer, Southeastern United States, 1998-2005
The Floridan aquifer system is a highly productive carbonate aquifer that provides drinking water to about 10 million people in Florida, Georgia, and South Carolina. Approximately 1.6 million people rely on domestic wells (privately owned household wells) for drinking water. Withdrawals of water from the Floridan aquifer system have increased by more than 500 percent from 630 million...
Authors
Marian P. Berndt, Christy A. Crandall, Michael Deacon, Teresa L. Embry, Rhonda S. Howard
Simulations of Groundwater Flow and Particle Tracking Analysis in the Area Contributing Recharge to a Public-Supply Well near Tampa, Florida, 2002-05 Simulations of Groundwater Flow and Particle Tracking Analysis in the Area Contributing Recharge to a Public-Supply Well near Tampa, Florida, 2002-05
Shallow ground water in the north-central Tampa Bay region, Florida, is affected by elevated nitrate concentrations, the presence of volatile organic compounds, and pesticides as a result of groundwater development and intensive urban land use. The region relies primarily on groundwater for drinking-water supplies. Sustainability of groundwater quality for public supply requires...
Authors
Christy A. Crandall, Leon J. Kauffman, Brian G. Katz, Patricia A. Metz, W. Scott McBride, Marian P. Berndt