Research

This is a list of scientific papers involving Panamanian amphibians and Panama Amphibian Rescue and Conservation Project staff or implementation team members as collaborators.

DiRenzo, G.V., Tunstall, T.S., Ibáñez, R., Longo, A.V., Zamudio, K.R. and Lips, K.R., 2018. External Reinfection of a Fungal Pathogen Does not Contribute to Pathogen Growth. EcoHealth, pp.1-12.

Woodhams, D.C., LaBumbard, B.C., Barnhart, K.L., Becker, M.H., Bletz, M.C., Escobar, L.A., Flechas, S.V., Forman, M.E., Iannetta, A.A., Joyce, M.D. and Rabemananjara, F., Gratwicke, B., Vences, M., Minbiole, K.P.C. 2018. Prodigiosin, violacein, and volatile organic compounds produced by widespread cutaneous bacteria of amphibians can inhibit two Batrachochytrium fungal pathogens. Microbial ecology75(4), pp.1049-1062.

Voyles, J., Woodhams, D.C., Saenz, V., Byrne, A.Q., Perez, R., Rios-Sotelo, G., Ryan, M.J., Bletz, M.C., Sobell, F.A., McLetchie, S. and Reinert, L., Rosenblum, E.B., Rollins-Smith, L.A. Ibáñez, R., Ray, J.M., Griffith, E.J., Ross, H., Richards-Zawacki, C.L. 2018. Shifts in disease dynamics in a tropical amphibian assemblage are not due to pathogen attenuation. Science359(6383), pp.1517-1519.

Becker, M.H. and Gratwicke, B., 2017. Minimum lethal concentration of sodium hypochlorite for the amphibian pathogen Batrachochytrium dendrobatidisPloS one12(4), p.e0176439.

Ibáñez RD, Griffith EJ, Lips KR, Crawford AJ. Altitudinal distribution and advertisement call of Colostethus latinasus (Amphibia: Dendrobatidae), endemic species from eastern Panama and type species of Colostethus , with a molecular assessment of similar sympatric species. Zootaxa. 2017;4254: 91–101.

Rodríguez C, Rollins-Smith L, Ibáñez R, Durant-Archibold AA, Gutiérrez M. Toxins and pharmacologically active compounds from species of the family Bufonidae (Amphibia, Anura). J Ethnopharmacol. Elsevier; 2017;198: 235–254.

Varela BJ, Lesbarrères DA, Ibáñez R, Green DM. Environmental and host effects on skin bacterial community composition in Panamanian frogs. Front Microbiol. Frontiers; 2018;9: 298. doi:10.3389/FMICB.2018.00298

Woodhams DC, LaBumbard BC, Barnhart KL, Becker MH, Bletz MC, Escobar LA, et al. (2017) Prodigiosin, Violacein, and Volatile Organic Compounds Produced by Widespread Cutaneous Bacteria of Amphibians Can Inhibit Two Batrachochytrium Fungal Pathogens. Microb Ecol. 2017; doi:10.1007/s00248-017-1095-7

Della Togna G, Gratwicke B, Evans M, Augustine L, Chia H, Bronikowski E, et al.  (2017) Influence of extracellular environment on the motility and structural properties of spermatozoa collected from hormonally stimulated Panamanian Golden Frog (Atelopus zeteki). Theriogenology. doi:10.1016/j.theriogenology.2017.11.032

Becker, M.H. & Gratwicke B. (2017) Minimum lethal concentration of sodium hypochlorite on Batrachochytrium dendrobatidis. Plos One.12(4): e0176439. https://doi.org/10.1371/journal.pone.0176439

Gratwicke, B. & Murphy, J. (2017) History of Captive Management and Conservation Amphibian Programs Mostly in Zoos and Aquariums. Part I—Anurans. Herpetological Review. 48:1 138-157

Gratwicke, B. & Murphy, J. (2016) Amphibian Conservation Efforts at the Smithsonian’s National Zoological Park and Conservation Biology Institute. Herpetological Review. 47:4 620-627

Della Togna, G., Trudeau, V.L, Gratwicke, B., Evans, M., Augustine, L., Chiaa, H., Bronikowski, E., Murphy, J.B., & Comizzoli, P (2016) Effect of hormonal stimulation on the quantity and quality of excreted spermatozoa in the Panamanian golden frog (Atelopus zeteki). Theriogenology. 91: 27-35

Rodríguez-Brenes S, Rodriguez D, Ibáñez R, Ryan MJ. (2016) Spread of amphibian chytrid fungus across lowland populations of túngara frogs in Panamá. PloS one. 11(5):e0155745.

Pereyra MO, Baldo D, Blotto BL, Iglesias PP, Thomé MT, Haddad CF, Barrio‐Amorós C, Ibáñez R, Faivovich J. (2016) Phylogenetic relationships of toads of the Rhinella granulosa group (Anura: Bufonidae): a molecular perspective with comments on hybridization and introgression. Cladistics. 32(1):36-53.

Rebollar EA, Hughey MC, Medina D, Harris RN, Ibáñez R, Belden LK. (2016) Skin bacterial diversity of Panamanian frogs is associated with host susceptibility and presence of Batrachochytrium dendrobatidis. The ISME journal. 10: 1682-1695.

Rodríguez C, Rollins-Smith L, Ibáñez R, Durant-Archibold AA, Gutiérrez M. (2016) Toxins and pharmacologically active compounds from species of the family Bufonidae (Amphibia, Anura). Journal of Ethnopharmacology. 198:235–254.

Savage AE, Terrell KA, Gratwicke B, Mattheus NM, Augustine L, Fleischer RC. (2016) Reduced immune function predicts disease susceptibility in frogs infected with a deadly fungal pathogen. Conservation Physiology. 4(1):cow011.

Gratwicke B, Neff M, Mayer LR, Ryan S, Sevin J. (2016) Education and outreach. In Dodd, CK. Reptile Ecology and Conservation: A Handbook of Techniques. pp 436.

Gratwicke B., Ross H., Batista A., Chaves G., Crawford A.J., Elizondo L., Estrada A., Evans M., Garelle, D., Guerrel J., Hertz A., Hughey M.,  Jaramillo C. A., Klocke B., Mandica M., Medina D.,  Richards-Zawacki C. L, . Ryan M. J, Sosa-Bartuano A., Voyles J.,  Walker B.,  Woodhams D. C.,  and R. Ibáñez (2015). Evaluating the probability of avoiding disease‐related extinctions of Panamanian amphibians through captive breeding programs. Animal Conservation. DOI: 10.1111/acv.12249

Ellison AR, Tunstall T, DiRenzo GV, Hughey MC, Rebollar EA, Belden LK, Harris RN, Ibáñez R, Lips KR, Zamudio KR. More than skin deep: functional genomic basis for resistance to amphibian chytridiomycosis. Genome biology and evolution. 2015 Jan 1;7(1):286-98.

Belden LK, Hughey MC, Rebollar EA, Umile TP, Loftus SC, Burzynski EA, Minbiole KPC, House LL, Jensen RV, Becker MH, Walke JB, Medina D, Ibáñez R and Harris RN (2015) Panamanian frog species host unique skin bacterial communities. Front. Microbiol. 6:1171. doi: 10.3389/fmicb.2015.01171

Woodhams, D. C., Alford. R. A., Antwis, R. E., Archer, H. Becker, M. H., Belden, L. K., Bell, S.C., Bletz, M., Daskin, J. H., Davis, L. R., Flechas, S. V., Lauer, A., Gonzalez, A., Harris, R. N., Holden, W. M., Hughey, M.C., Ibáñez, R. D., Knight, R., Kueneman, J., Rabemananjara, F., Reinert, L. K., Rollins-Smith, L. A., Roman-Rodriguez, F., Shaw, S.D., Walke, J.B., McKenzie, V. 2015. Antifungal isolates database of amphibian skin-associated bacteria and function against emerging fungal pathogens.Ecology, 96(2)

Becker, Matthew H., Walke, Jenifer B., Cikanek, Shawna, Savage, Anna E., Mattheus, Nichole, Santiago, Celina N., Minbiole, Kevin P. C., Harris, Reid N., Belden, Lisa K. and Gratwicke, Brian. 2015. Composition of symbiotic bacteria predicts survival in Panamanian golden frogs infected with a lethal fungus, Proceedings of the Royal Society of London B: Biological Sciences 282: 20142881.

Estrada, A., Gratwicke, B., Benedetti, A., DellaTogna, G., Garrelle, D., Griffith, E., Ibañez, R., Ryan, S. & Miller, P. S. (2014). The Golden Frogs of Panama (Atelopus zeteki, A. varius): A Conservation Planning Workshop Final Report.). Apple Valley, MN: IUSN/SSC Conservation Breeding Specialist Group.

Perez R, Richards-Zawacki CL, Krohn AR, Robak M, Griffith EJ, Ross H, Gratwicke B, Ibáñez R & Voyles, J. (2014). Field surveys in Western Panama indicate populations of Atelopus varius frogs are persisting in regions where Batrachochytrium dendrobatidis is now enzootic. Amphibian & Reptile Conservation 8, 30.

Pessier, A. P., Baitchman, E. J., Crump, P., Wilson, B., Griffith, E. & Ross, H. (2014). Causes of mortality in anuran amphibians from an ex situ survival assurance colony in Panama. Zoo Biology 10.1002/zoo.21166, n/a.

Kung, D., Bigler, L., Davis, L. R., Gratwicke, B., Griffith, E. & Woodhams, D. C. (2014). Stability of Microbiota Facilitated by Host Immune Regulation: Informing Probiotic Strategies to Manage Amphibian Disease. PLoS one 9, e87101.

Becker, M. H., Richards-Zawacki, C. L., Gratwicke, B. & Belden, L. K. (2014). The effect of captivity on the cutaneous bacterial community of the critically endangered Panamanian golden frog (Atelopus zeteki). Biological Conservation 176, 199.

Cikanek, S. J., Nockold, S., Brown, J. L., Carpenter, J. W., Estrada, A., Guerrel, J., Hope, K., Ibáñez, R., Putman, S. B. & Gratwicke, B. (2014). Evaluating Group Housing Strategies for the Ex-Situ Conservation of Harlequin Frogs (Atelopus spp.) Using Behavioral and Physiological Indicators. PLoS one 9, e90218.

Baitchman, E. J. & Pessier, A. P. (2013). Pathogenesis, Diagnosis, and Treatment of Amphibian Chytridiomycosis. Veterinary Clinics of North America: Exotic Animal Practice 16, 669.

Crawford, A. J., Cruz, C., Griffith, E., Ross, H., Ibáñez, R., Lips, K. R., Driskell, A. C., Bermingham, E. & Crump, P. (2013). DNA barcoding applied to ex situ tropical amphibian conservation programme reveals cryptic diversity in captive populations. Molecular Ecology Resources 13, 1005.

Gratwicke, B., Crump, P., Baitchman, E., Evans, M., Garelle, D., Hoffmann, C., Ibáñez, R., Renick-Mayer, L. & Ross, H. (2012). Amphibian Rescue  and Conservation Project, Panama. FrogLog 20 (3) #102, 17.

Becker, M. H., Harris, R. N., Minbiole, K. P. C., Schwantes, C. R., Rollins-Smith, L. A., Reinert, L. K., Brucker, R. M., Domangue, R. J. & Gratwicke, B. (2012). Towards a better understanding of the use of probiotics for preventing chytridiomycosis in Panamanian Golden Frogs. Ecohealth 8, 501.

Myers, C. W., Ibáñez, R. D., Grant, T., Jaramillo, César A. 2012. Discovery of the frog genus Anomaloglossus in Panama, with descriptions of two new species from the Chagres Highlands (Dendrobatoidea: Aromobatidae). American Museum Novitates, 3763: 1-19.

Kilburn, V. L., Ibáñez, R. & Green, D. M. (2011). Reptiles as potential vectors and hosts of the amphibian pathogen Batrachochytrium dendrobatidis in Panama. Dis Aquat Org 97, 127.

Kilburn, V. L., Ibáñez, R., Sanjur, O., Bermingham, E., Suraci, J. P. & Green, D. M. (2011). Ubiquity of the Pathogenic Chytrid Fungus, Batrachochytrium dendrobatidis, in Anuran Communities in Panamá. EcoHealth, 1.

Loarie, S. R., Kahn, T. R., Gratwicke, B., Johnson, K., Koo, M., Chaves Portilla, G. A., Tapley, B. & Ueda, K. (2011). Global Amphibian BioBlitz. FrogLog 97, 48.

Gagliardo, R., Griffith, E., Hill, R., Ross, H., Mendelson, J., Timpe, E. & Wilson, B. (2010). Observations on the Captive Reproduction of the Horned Marsupial Frog Gastrotheca cornuta (Boulenger 1898). Herpetological Review 41, 52.

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