Margaret Lamont, Ph.D.
Meg Lamont is a Research Biologist at the USGS Wetland and Aquatic Research Center.
Meg Lamont is a research biologist focusing on population-level studies of coastal and marine vertebrates in the Gulf of Mexico. She leads multiple research projects on topics such as demography, habitat use, and movement patterns, particularly related to varying environmental parameters. Her research has focused on species that include nesting and inwater marine turtles (Kemp's ridley, loggerhead and green turtles), diamondback terrapins, gopher tortoise, box turtles, Gulf sturgeon and Yellowfin tuna. She partners with various agencies including the Department of Defense, US Fish and Wildlife Service and the Bureau of Ocean Energy Management, in addition to academic institutions, state agencies and non-profit organizations.
Education and Certifications
Ph.D., Wildlife Ecology and Conservation, University of Florida, 2002
M.S., Marine Science, California State University, Moss Landing Marine Laboratories, 1995
B.S., The College of New Jersey, 1991
Science and Products
Filter Total Items: 59
Spatial requirements of different life-stages of the loggerhead turtle (Caretta caretta) from a distinct population segment in the northern Gulf of Mexico
Many marine species have complex life histories that involve disparate developmental, foraging and reproductive habitats and a holistic assessment of the spatial requirements for different life stages is a challenge that greatly complicates their management. Here, we combined data from oceanographic modeling, nesting surveys, and satellite tracking to examine the spatial requirements of different
Authors
Margaret M. Lamont, Nathan Freeman Putman, Ikuko Fujisaki, Kristen M. Hart
Erratum to: Estimates of vital rates for a declining loggerhead turtle (Caretta caretta) subpopulation: implications for management
Erratum to: Mar Biol (2014) 161:2659–2668 DOI 10.1007/s00227-014-2537-0
The Open Robust Model methods used for analysis in this study were developed by Kendall and Bjorkland (2001) and Kendall (2010). The language used in this manuscript to describe formatting and implementation of data for these analyses was derived heavily from Phillips et al. (2014). Therefore, the wording in the last paragraph
Authors
Margaret M. Lamont, Ikuko Fujisaki, Raymond R. Carthy
Determining origin in a migratory marine vertebrate: a novel method to integrate stable isotopes and satellite tracking
Stable isotope analysis is a useful tool to track animal movements in both terrestrial and marine environments. These intrinsic markers are assimilated through the diet and may exhibit spatial gradients as a result of biogeochemical processes at the base of the food web. In the marine environment, maps to predict the spatial distribution of stable isotopes are limited, and thus determining geograp
Authors
Hannah B. Vander Zanden, Anton D. Tucker, Kristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, David S. Addison, Katherine L. Mansfield, Katrina F. Phillips, Michael B. Wunder, Gabriel J. Bowen, Mariela Pajuelo, Alan B. Bolten, Karen A. Bjorndal
Estimates of vital rates for a declining loggerhead turtle (Caretta caretta) subpopulation: implications for management
Because subpopulations can differ geographically, genetically and/or phenotypically, using data from one subpopulation to derive vital rates for another, while often unavoidable, is not optimal. We used a two-state open robust design model to analyze a 14-year dataset (1998–2011) from the St. Joseph Peninsula, Florida (USA; 29.748°, −85.400°) which is the densest loggerhead (Caretta caretta) nesti
Authors
Margaret M. Lamont, Ikuko Fujisaki, Raymond R. Carthy
Migration, foraging, and residency patterns for Northern Gulf loggerheads: implications of local threats and international movements
Northern Gulf of Mexico (NGoM) loggerheads (Caretta caretta) make up one of the smallest subpopulations of this threatened species and have declining nest numbers. We used satellite telemetry and a switching state-space model to identify distinct foraging areas used by 59 NGoM loggerheads tagged during 2010–2013. We tagged turtles after nesting at three sites, 1 in Alabama (Gulf Shores; n = 37) an
Authors
Kristen M. Hart, Margaret M. Lamont, Autumn R. Sartain-Iverson, Ikuko Fujisaki
Winter diets of immature green turtles (Chelonia mydas) on a northern feeding ground: integrating stomach contents and stable isotope analyses
The foraging ecology and diet of the green turtle, Chelonia mydas, remain understudied, particularly in peripheral areas of its distribution. We assessed the diet of an aggregation of juvenile green turtles at the northern edge of its range during winter months using two approaches. Stomach content analyses provide a single time sample, and stable isotope analyses integrate diet over a several-mon
Authors
Natalie C. Williams, Karen A. Bjorndal, Margaret M. Lamont, Raymond R. Carthy
Spatial distribution of loggerhead turtle (Caretta caretta) emergences along a highly dynamic beach in the northern Gulf of Mexico
As coastlines change due to sea level rise and an increasing human presence, understanding how species, such as marine turtles, respond to alterations in habitat is necessary for proper management and conservation. Survey data from a major nesting beach in the northern Gulf of Mexico, where a revetment was installed, was used to assess spatial distribution of loggerhead emergences. Through use of
Authors
Margaret M. Lamont, Chris Houser
Temporal, spatial, and body size effects on growth rates of loggerhead sea turtles (Caretta caretta) in the Northwest Atlantic
In response to a call from the US National Research Council for research programs to combine their data to improve sea turtle population assessments, we analyzed somatic growth data for Northwest Atlantic (NWA) loggerhead sea turtles (Caretta caretta) from 10 research programs. We assessed growth dynamics over wide ranges of geography (9–33°N latitude), time (1978–2012), and body size (35.4–103.3
Authors
Karen A. Bjorndal, Barbara A. Schroeder, Allen M. Foley, Blair E. Witherington, Michael Bresette, David Clark, Richard M. Herren, Michael D. Arendt, Jeffrey R. Schmid, Anne B. Meylan, Peter A. Meylan, Jane A. Provancha, Kristen M. Hart, Margaret M. Lamont, Raymond R. Carthy, Alan B. Bolten
Movements and habitat-use of loggerhead sea turtles in the northern Gulf of Mexico during the reproductive period
Nesting strategies and use of important in-water habitats for far-ranging marine turtles can be determined using satellite telemetry. Because of a lack of information on habitat-use by marine turtles in the northern Gulf of Mexico, we used satellite transmitters in 2010 through 2012 to track movements of 39 adult female breeding loggerhead turtles (Caretta caretta) tagged on nesting beaches at thr
Authors
Kristen M. Hart, Margaret M. Lamont, Autumn R. Sartain-Iverson, Ikuko Fujisaki, Brail S. Stephens
Common coastal foraging areas for loggerheads in the Gulf of Mexico: Opportunities for marine conservation
Designing conservation strategies that protect wide-ranging marine species is a significant challenge, but integrating regional telemetry datasets and synthesizing modeled movements and behavior offer promise for uncovering distinct at-sea areas that are important habitats for imperiled marine species. Movement paths of 10 satellite-tracked female loggerheads (Caretta caretta) from three separate
Authors
Kristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, Anton D. Tucker, Raymond R. Carthy
Increased incidence of red imported fire ant (Hymenoptera: Formicidae) presence in loggerhead sea turtle (Testudines: Cheloniidae) nests and observations of hatchling mortality
No abstract available.
Authors
L.B. Parris, M.M. Lamont, R.R. Carthy
Science and Products
- Publications
Filter Total Items: 59
Spatial requirements of different life-stages of the loggerhead turtle (Caretta caretta) from a distinct population segment in the northern Gulf of Mexico
Many marine species have complex life histories that involve disparate developmental, foraging and reproductive habitats and a holistic assessment of the spatial requirements for different life stages is a challenge that greatly complicates their management. Here, we combined data from oceanographic modeling, nesting surveys, and satellite tracking to examine the spatial requirements of differentAuthorsMargaret M. Lamont, Nathan Freeman Putman, Ikuko Fujisaki, Kristen M. HartErratum to: Estimates of vital rates for a declining loggerhead turtle (Caretta caretta) subpopulation: implications for management
Erratum to: Mar Biol (2014) 161:2659–2668 DOI 10.1007/s00227-014-2537-0 The Open Robust Model methods used for analysis in this study were developed by Kendall and Bjorkland (2001) and Kendall (2010). The language used in this manuscript to describe formatting and implementation of data for these analyses was derived heavily from Phillips et al. (2014). Therefore, the wording in the last paragraphAuthorsMargaret M. Lamont, Ikuko Fujisaki, Raymond R. CarthyDetermining origin in a migratory marine vertebrate: a novel method to integrate stable isotopes and satellite tracking
Stable isotope analysis is a useful tool to track animal movements in both terrestrial and marine environments. These intrinsic markers are assimilated through the diet and may exhibit spatial gradients as a result of biogeochemical processes at the base of the food web. In the marine environment, maps to predict the spatial distribution of stable isotopes are limited, and thus determining geograpAuthorsHannah B. Vander Zanden, Anton D. Tucker, Kristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, David S. Addison, Katherine L. Mansfield, Katrina F. Phillips, Michael B. Wunder, Gabriel J. Bowen, Mariela Pajuelo, Alan B. Bolten, Karen A. BjorndalEstimates of vital rates for a declining loggerhead turtle (Caretta caretta) subpopulation: implications for management
Because subpopulations can differ geographically, genetically and/or phenotypically, using data from one subpopulation to derive vital rates for another, while often unavoidable, is not optimal. We used a two-state open robust design model to analyze a 14-year dataset (1998–2011) from the St. Joseph Peninsula, Florida (USA; 29.748°, −85.400°) which is the densest loggerhead (Caretta caretta) nestiAuthorsMargaret M. Lamont, Ikuko Fujisaki, Raymond R. CarthyMigration, foraging, and residency patterns for Northern Gulf loggerheads: implications of local threats and international movements
Northern Gulf of Mexico (NGoM) loggerheads (Caretta caretta) make up one of the smallest subpopulations of this threatened species and have declining nest numbers. We used satellite telemetry and a switching state-space model to identify distinct foraging areas used by 59 NGoM loggerheads tagged during 2010–2013. We tagged turtles after nesting at three sites, 1 in Alabama (Gulf Shores; n = 37) anAuthorsKristen M. Hart, Margaret M. Lamont, Autumn R. Sartain-Iverson, Ikuko FujisakiWinter diets of immature green turtles (Chelonia mydas) on a northern feeding ground: integrating stomach contents and stable isotope analyses
The foraging ecology and diet of the green turtle, Chelonia mydas, remain understudied, particularly in peripheral areas of its distribution. We assessed the diet of an aggregation of juvenile green turtles at the northern edge of its range during winter months using two approaches. Stomach content analyses provide a single time sample, and stable isotope analyses integrate diet over a several-monAuthorsNatalie C. Williams, Karen A. Bjorndal, Margaret M. Lamont, Raymond R. CarthySpatial distribution of loggerhead turtle (Caretta caretta) emergences along a highly dynamic beach in the northern Gulf of Mexico
As coastlines change due to sea level rise and an increasing human presence, understanding how species, such as marine turtles, respond to alterations in habitat is necessary for proper management and conservation. Survey data from a major nesting beach in the northern Gulf of Mexico, where a revetment was installed, was used to assess spatial distribution of loggerhead emergences. Through use ofAuthorsMargaret M. Lamont, Chris HouserTemporal, spatial, and body size effects on growth rates of loggerhead sea turtles (Caretta caretta) in the Northwest Atlantic
In response to a call from the US National Research Council for research programs to combine their data to improve sea turtle population assessments, we analyzed somatic growth data for Northwest Atlantic (NWA) loggerhead sea turtles (Caretta caretta) from 10 research programs. We assessed growth dynamics over wide ranges of geography (9–33°N latitude), time (1978–2012), and body size (35.4–103.3AuthorsKaren A. Bjorndal, Barbara A. Schroeder, Allen M. Foley, Blair E. Witherington, Michael Bresette, David Clark, Richard M. Herren, Michael D. Arendt, Jeffrey R. Schmid, Anne B. Meylan, Peter A. Meylan, Jane A. Provancha, Kristen M. Hart, Margaret M. Lamont, Raymond R. Carthy, Alan B. BoltenMovements and habitat-use of loggerhead sea turtles in the northern Gulf of Mexico during the reproductive period
Nesting strategies and use of important in-water habitats for far-ranging marine turtles can be determined using satellite telemetry. Because of a lack of information on habitat-use by marine turtles in the northern Gulf of Mexico, we used satellite transmitters in 2010 through 2012 to track movements of 39 adult female breeding loggerhead turtles (Caretta caretta) tagged on nesting beaches at thrAuthorsKristen M. Hart, Margaret M. Lamont, Autumn R. Sartain-Iverson, Ikuko Fujisaki, Brail S. StephensCommon coastal foraging areas for loggerheads in the Gulf of Mexico: Opportunities for marine conservation
Designing conservation strategies that protect wide-ranging marine species is a significant challenge, but integrating regional telemetry datasets and synthesizing modeled movements and behavior offer promise for uncovering distinct at-sea areas that are important habitats for imperiled marine species. Movement paths of 10 satellite-tracked female loggerheads (Caretta caretta) from three separateAuthorsKristen M. Hart, Margaret M. Lamont, Ikuko Fujisaki, Anton D. Tucker, Raymond R. CarthyIncreased incidence of red imported fire ant (Hymenoptera: Formicidae) presence in loggerhead sea turtle (Testudines: Cheloniidae) nests and observations of hatchling mortality
No abstract available.AuthorsL.B. Parris, M.M. Lamont, R.R. Carthy - Science
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