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Seminar: "Where's home? Applying Genetic Tools to Resolve Marine Turtle Spatial Ecology and Reproductive Behavior"

Assistant Research Scientist

Contact Information

Pictured: Dr. Brian Shamblin

Contact Dr. Brian Shamblin

Phone:
706-542-1237​

Campus address

Office:
Warnell 3-310

Research

Research Areas Detail:

My research focuses on the application of genetic tools to inform management and conservation. Much of this work has addressed knowledge gaps in marine turtle life history. Marine turtle populations are defined based on female natal homing, but the scale of this homing behavior is often difficult to infer due to poor marker resolution. We have refined assessments of population structure and migratory connectivity in western Atlantic loggerhead and green turtles through application of mitogenomic markers. Physical tagging and satellite telemetry projects have made seminal contributions to our understanding of marine turtle reproductive ecology, but many aspects remain unresolved. I developed a clutch sampling approach to identify individuals females without the need to physically interact with them, which has permitted genetic tagging on a scale that would not be feasible using traditional tagging methods. We use these genetic tagging data in a capture-recapture framework to better understand the reproductive ecology of Northern Recovery Unit loggerhead turtles. This work includes characterizing site fidelity and nest site selection as well as refining estimates of adult female population size, survival, and reproductive parameters. 

Labs/Centers/Committees:
Recent Citations:

Shamblin BM, Godfrey MH, Pate SM, Thompson WP, Sutton H, Altman J, Fair K, McClary J, Wilson AM, Milligan B, Stetzar EJ, Nairn CJ (2018) Green turtles at their northern range limit in the United States represent a distinct subpopulation. Chelonian Conservation and Biology 17: 314-319.

Tumas HR, Shamblin BM, Woodrey MS, Nibbelink NP, Chandler R, Nairn CJ (2018) Landscape genetics of the foundational salt marsh plant species black needlerush (Juncus roemerianus Scheele) across the northeastern Gulf of Mexico. Landscape Ecology 33:1585-1601.

Shamblin BM, Witherington BE, Hirama S, Hardy RF, Nairn CJ (2018) Mixed stock analyses indicate population-scale connectivity effects of active dispersal by surface-pelagic green turtles. Marine Ecology Progress Series 601:215-226.

Ferrari B, Shamblin BM, Chandler R, Tumas HR, Haché S, Reitsma L, Nairn CJ (2018) Canada Warbler (Cardellina canadensis): novel molecular markers and a preliminary analysis of genetic diversity and structure. Avian Conservation and Biology 13:8.

Shamblin BM, Dodd MG, Griffin DB, Pate SM, Godfrey MH, Coyne MS, Williams KL, Pfaller JB, Ondich BL, Andrews KM, Boettcher R, Nairn CJ (2017) Improved female abundance and reproductive parameter estimates through subpopulation-scale genetic capture-recapture of loggerhead turtles. Marine Biology. 164:138.

Shamblin BM, Dutton PH, Shaver DJ, Bagley DA, Putman NF, Mansfield KL, Ehrhart LM, Peña LJ, Nairn CJ (2017) Mexican origins for the Texas green turtle foraging aggregation: a cautionary tale of incomplete baselines and poor marker resolution. Journal of Experimental Marine Biology and Ecology. 488:111-120.

Komoroske LM, Jensen MP, Stewart KR, Shamblin BM, Dutton PH (2017) Advances in the application of genetics in marine turtle biology and conservation. Frontiers in Marine Science. DOI: 10.3389/fmars.2017.00156.

Shamblin BM, Dutton PH, Bjorndal KA, Bolten AB, Naro-Maciel E, Santos AJB, Bellini C, Baptistotte C, Marcovaldi MÂ, Nairn CJ (2015) Deeper mitochondrial sequencing reveals cryptic diversity and structure in Brazil’s green turtle rookeries. Chelonian Conservation and Biology. 14:167-172.

Shamblin BM, Bagley DA, Ehrhart LM, Desjardin NA, Martin RE, Hart KM, Naro-Maciel E, Rusenko K, Stiner JC, Sobel D, Johnson C, Wilmers TJ, Wright LJ, Nairn CJ (2015) Genetic structure of Florida green turtle rookeries as indicated by mitochondrial control region sequences. Conservation Genetics. 16:673-685.

Naro-Maciel E, Reid B, Alter SE, Amato G, Bjorndal KA, Bolten AB, Martin M, Nairn CJ, Shamblin BM, Pineda-Catalan O (2014) From refugia to rookeries: phylogeography of Atlantic green turtles. Journal of Experimental Marine Biology and Ecology. 461:306-316.

Vander Zanden HB, Pfaller JB, Reich KJ, Pajuelo M, Bolten AB, Williams KL, Frick MG, Shamblin BM, Nairn CJ, Bjorndal KA (2014) Foraging areas differentially affect reproductive output and interpretation of trends in abundance of loggerhead turtles. Marine Biology. 161:585-598.

Shamblin BM, Bolten AB, Abreu-Grobois FA, Bjorndal KA, Cardona L, Carreras C, Clusa M, Monzón-Argüello C, Nairn CJ, Nielsen JT, Nel R, Soares LS, Stewart KR, Vilaça ST, Türkozan O, Yilmaz C, Dutton PH (2014) Geographic patterns of genetic variation in a broadly distributed marine vertebrate: new insights into loggerhead turtle stock structure from expanded mitochondrial DNA sequences. PLOS ONE. DOI: 10.1371/journal.pone.0085956

Shamblin BM, Bolten AB, Bjorndal KA, Dutton PH, Nielsen JT, Abreu-Grobois FA, Reich KJ, Witherington BE, Bagley DA, Ehrhart LM, Tucker AD, Addison DS, Arenas A, Johnson C, Carthy RR, Lamont MM, Dodd MG, Gaines MS, LaCasella E, Nairn CJ (2012) Expanded mitochondrial control region sequences increase resolution of stock structure among North Atlantic loggerhead turtle rookeries. Marine Ecology Progress Series. 469:145-160.

Shamblin BM, Bjorndal KA, Bolten AB, Hillis-Starr ZM, Lundgren I, Naro-Maciel E, Nairn CJ (2012) Mitogenomic sequences better resolve stock structure of southern Greater Caribbean green turtle rookeries. Molecular Ecology. 21:2330-2340.

Courses Regularly Taught:

Langdale Center names new associate director

Communications Director

Contact Information

Contact Kristen Morales

Phone:
706-542-2079
706-206-3055

Campus address

Office:
Building 1-202

About

Education:
B.A., Graphic Design, The Art Institute of Fort Lauderdale, 2002
B.S., Print Journalism, Syracuse University, 1998
Biography:

Kristen comes to Warnell after spending five years as communications manager at the UGA College of Education. At Warnell, she oversees the production of The Log, the college's alumni magazine, as well as regular news releases, website updates and social media content. Before working for UGA, Kristen spent more than 15 years in the newspaper industry as an editor, writer, copy editor and designer at newspapers in New York, Massachusetts, California, Florida and Georgia. 

Industry expert Joe Parsons begins April 1

 

The Harley Langdale Jr. Center for Forest Business at the University of Georgia will soon welcome a new industry expert into the fold.

UGA joins federal-state partnership to combat feral swine

Communications Director

Contact Information

Contact Kristen Morales

Phone:
706-542-2079
706-206-3055

Campus address

Office:
Building 1-202

About

Education:
B.A., Graphic Design, The Art Institute of Fort Lauderdale, 2002
B.S., Print Journalism, Syracuse University, 1998
Biography:

Kristen comes to Warnell after spending five years as communications manager at the UGA College of Education. At Warnell, she oversees the production of The Log, the college's alumni magazine, as well as regular news releases, website updates and social media content. Before working for UGA, Kristen spent more than 15 years in the newspaper industry as an editor, writer, copy editor and designer at newspapers in New York, Massachusetts, California, Florida and Georgia. 

The University of Georgia is a key partner in a new federal initiative to combat feral hogs and will partner with federal and state agencies as part of a $1.5 million, 3-year project in Southwest Georgia.

As holiday season ends, a final gift for the fish

Communications Director

Contact Information

Contact Kristen Morales

Phone:
706-542-2079
706-206-3055

Campus address

Office:
Building 1-202

About

Education:
B.A., Graphic Design, The Art Institute of Fort Lauderdale, 2002
B.S., Print Journalism, Syracuse University, 1998
Biography:

Kristen comes to Warnell after spending five years as communications manager at the UGA College of Education. At Warnell, she oversees the production of The Log, the college's alumni magazine, as well as regular news releases, website updates and social media content. Before working for UGA, Kristen spent more than 15 years in the newspaper industry as an editor, writer, copy editor and designer at newspapers in New York, Massachusetts, California, Florida and Georgia. 

Student’s project uses discarded Christmas trees to create new habitat

 

Using the reds and oranges on his digital map as a guide, graduate student Wesley Gerrin guided the small motorboat over the drop spot.

Warnell celebrates fall 2019 graduates

Communications Director

Contact Information

Contact Kristen Morales

Phone:
706-542-2079
706-206-3055

Campus address

Office:
Building 1-202

About

Education:
B.A., Graphic Design, The Art Institute of Fort Lauderdale, 2002
B.S., Print Journalism, Syracuse University, 1998
Biography:

Kristen comes to Warnell after spending five years as communications manager at the UGA College of Education. At Warnell, she oversees the production of The Log, the college's alumni magazine, as well as regular news releases, website updates and social media content. Before working for UGA, Kristen spent more than 15 years in the newspaper industry as an editor, writer, copy editor and designer at newspapers in New York, Massachusetts, California, Florida and Georgia. 

The Warnell family got a little bigger recently, as 57 students walked across the stage during the fall convocation ceremony.

In his opening remarks to the several hundred in attendance, Dean Dale Greene recalled the connections made through this family, and challenged the new graduates to stay involved and engaged with Warnell beyond their years as a student.

Songs of STEM: Karaoke-themed class connects science with the arts

Communications Director

Contact Information

Contact Kristen Morales

Phone:
706-542-2079
706-206-3055

Campus address

Office:
Building 1-202

About

Education:
B.A., Graphic Design, The Art Institute of Fort Lauderdale, 2002
B.S., Print Journalism, Syracuse University, 1998
Biography:

Kristen comes to Warnell after spending five years as communications manager at the UGA College of Education. At Warnell, she oversees the production of The Log, the college's alumni magazine, as well as regular news releases, website updates and social media content. Before working for UGA, Kristen spent more than 15 years in the newspaper industry as an editor, writer, copy editor and designer at newspapers in New York, Massachusetts, California, Florida and Georgia. 

FANR 1200 fulfills requirements while also gives students a new way to research topics

 

Think about what you learn from songs: love, loss, redemption … and tree frogs?

Study uses old friends to predict new enemies

Communications Director

Contact Information

Contact Kristen Morales

Phone:
706-542-2079
706-206-3055

Campus address

Office:
Building 1-202

About

Education:
B.A., Graphic Design, The Art Institute of Fort Lauderdale, 2002
B.S., Print Journalism, Syracuse University, 1998
Biography:

Kristen comes to Warnell after spending five years as communications manager at the UGA College of Education. At Warnell, she oversees the production of The Log, the college's alumni magazine, as well as regular news releases, website updates and social media content. Before working for UGA, Kristen spent more than 15 years in the newspaper industry as an editor, writer, copy editor and designer at newspapers in New York, Massachusetts, California, Florida and Georgia. 

About 450 nonnative, plant-eating insect species live in North American forests. While most are harmless, a handful wreak havoc on their new environment, and their attacks on trees cause more than $70 billion in damage each year.

The problem is, scientists often don’t know which insect will emerge as the next harmful invader.