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

Klocke, B., Estrada, A., Mataya, M., Medina, D., Baitchman, E., Belden, L., Guerrel, J., Evans, M., Baughman, J. and Connette, G., Illueca, E., Ibáñez, R., Gratwicke, B. 2023. Movement and survival of captive-bred Limosa Harlequin frog (Atelopus limosus) released into the wild. Frontiers in Amphibian and Reptile Science, 1, p.1205938. 

Campbell Grant, E.H., Amburgey, S.M., Gratwicke, B., Chaves, V.A., Belasen, A.M., Bickford, D., Brühl, C.A., Calatayud, N.E., Clemann, N., Clulow, S. and Crnobrnja‐Isailovic, J., et al. 2023.Priority research needs to inform amphibian conservation in the Anthropocene. Conservation Science and Practice, p.e12988.

Higgins, K. and Ibanez, R., 2022. Description of two dendrobatid tadpoles (Anura: Dendrobatidae: Andinobates and Oophaga) with comments on egg clutches. Zootaxa, 5175(3), pp.395-400.

Springborn, M.R., Weill, J.A., Lips, K.R., Ibáñez, R. and Ghosh, A., 2022. Amphibian collapses increased malaria incidence in Central America. Environmental Research Letters17(10), p.104012.

Hughey, M.C., Rebollar, E.A., Harris, R.N., Ibáñez, R., Loftus, S.C., House, L.L., Minbiole, K.P., Bletz, M.C., Medina, D., Shoemaker, W.R. and Swartwout, M.C., 2022. An experimental test of disease resistance function in the skin-associated bacterial communities of three tropical amphibian species. FEMS Microbiology Ecology, 98(3), p.fiac023.

Hughey, M.C., Rebollar, E.A., Harris, R.N., Ibáñez, R., Loftus, S.C., House, L.L., Minbiole, K.P., Bletz, M.C., Medina, D., Shoemaker, W.R. and Swartwout, M.C., 2022. An experimental test of disease resistance function in the skin-associated bacterial communities of three tropical amphibian species. FEMS Microbiology Ecology, 98(3), p.fiac023.

Estrada, A., Medina, D; Gratwicke, B, Ibáñez, R, Belden, L (2022) Body condition, skin bacterial communities and disease status: Insights from the first release trial of the Limosa harlequin frog, Atelopus limosus. Proceedings of the Royal Society B.

Kueneman, J., Bletz, M., Becker, M., Gratwicke, B., Garcés, O.A., Hertz, A., Holden, W.M., Ibáñez, R., Loudon, A., McKenzie, V. and Parfrey, L., 2022. Effects of captivity and rewilding on amphibian skin microbiomes. Biological Conservation, 271, p.109576.

Gray, H.M., Green, D.M. and Ibáñez, R., 2021. Diurnal calling in a nocturnal frog: exceptional calling activity of Túngara Frogs (Engystomops pustulosus) on the Panamanian island of Taboga. Herpetologica, 77(3), pp.227-231.

Gratwicke B. 2021 Context matters in the fight to save frogs. In Meshaka, W (ed) Exotic herpetofauna of United States. The John Hopkins University Press (book chapter).

Gratwicke B. 2020. Building an Amphibian Ark in Panama in Wiens, J., Scott, M., Goble, D. Shepherding Nature: The Challenge of Conservation Reliance Cambridge University Press.

Byrne, A.Q., Richards‐Zawacki, C.L., Voyles, J., Bi, K., Ibáñez, R. and Rosenblum, E.B., 2021. Whole exome sequencing identifies the potential for genetic rescue in iconic and critically endangered Panamanian harlequin frogsGlobal Change Biology27(1), pp.50-70.

Rodriguez, C., Ibáñez, R., Mojica, L., Ng, M., Spadafora, C., Durant-Archibold, A.A. and Gutiérrez, M., 2021. Bufadienolides from the Skin Secretions of the Neotropical Toad Rhinella alata (Anura: Bufonidae): Antiprotozoal Activity against Trypanosoma cruzi. Molecules, 26(14), p.4217.

Higgins, K., Guerrel, J., Lassiter, E., Mooers, A., Palen, W.J. and Ibáñez, R., 2021. Observations on spindly leg syndrome in a captive population of Andinobates geminisae. Zoo Biology, 40(4), pp.330-341.

Hughey, M.C., Rebollar, E.A., Harris, R.N., Ibáñez, R., Loftus, S.C., House, L.L., Minbiole, K.P., Bletz, M.C., Medina, D., Shoemaker, W.R. and Swartwout, M.C., 2022. An experimental test of disease resistance function in the skin-associated bacterial communities of three tropical amphibian species. FEMS Microbiology Ecology, 98(3), p.fiac023.

Gray, H.M., Green, D.M. and Ibáñez, R., 2021. Diurnal Calling in a Nocturnal Frog: Exceptional Calling Activity of Túngara Frogs (Engystomops pustulosus) on the Panamanian Island of Taboga. Herpetologica, 77(3), pp.227-231.

Becker, M.H., Brophy, J.A.N., Barrett, K, Bronikowski, E., Evans, M., Glassey, E., Klocke, B. Lassiter, E., Meyer, A.J., Kaganer, A.W., Muletz-Wolz, C.R.,  Fleischer, R.C., Voigt, C.A., and Gratwicke, B. Genetically modifying skin microbe to produce violacein and augmenting microbiome did not defend Panamanian golden frogs from disease. ISME Communications

Smilansky, V., Jirků, M., Milner, D.S., Ibáñez, R., Gratwicke, B., Nicholls, A., Lukeš, J., Chambouvet, A. and Richards, T.A., 2021. Expanded host and geographic range of tadpole associations with the Severe Perkinsea Infection group. Biology Letters17(6), p.20210166.

Rodriguez, C., Ibáñez, R., Rollins-Smith, L.A., Gutiérrez, M. and Durant-Archibold, A.A., 2020. Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human PathogensAntibiotics9(12), p.843.

Kelehear, C., Ibáñez, R., Rodríguez, C., Buitrago, S. and Durant-Archibold, A.A., 2020. Sarcophagid Myiasis in the Bufonid Rhinella alata in Panama. Journal of wildlife diseases56(3), pp.667-672.

Della Togna, G., Howell, L.G., Clulow, J., Langhorne, C.J., Marcec-Greaves, R. and Calatayud, N.E., 2020. Evaluating amphibian biobanking and reproduction for captive breeding programs according to the Amphibian Conservation Action Plan objectives. Theriogenology, 150, pp.412-431.

Martin H, C., Ibáñez, R., Nothias, L.F., Caraballo-Rodríguez, A.M., Dorrestein, P.C. and Gutiérrez, M., 2020. Metabolites from Microbes Isolated from the Skin of the Panamanian Rocket Frog Colostethus panamansis (Anura: Dendrobatidae). Metabolites10(10), p.406.

Yovanovich, C.A., Pierotti, M.E., Kelber, A., Jorgewich-Cohen, G., Ibáñez, R. and Grant, T., 2020. Lens transmittance shapes ultraviolet sensitivity in the eyes of frogs from diverse ecological and phylogenetic backgrounds. Proceedings of the Royal Society B, 287(1918), p.20192253.

Ramírez, J.P., Jaramillo, C.A., Lindquist, E.D., Crawford, A.J. and Ibáñez, R., 2020. Recent and rapid radiation of the highly endangered harlequin frogs (Atelopus) into Central America inferred from mitochondrial DNA sequences. Diversity, 12(9), p.360.

Rodríguez, A., Mundy, N.I., Ibáñez, R. and Pröhl, H., 2020. Being red, blue and green: the genetic basis of coloration differences in the strawberry poison frog (Oophaga pumilio). BMC genomics, 21, pp.1-16.

Savage, A.E.,  Gratwicke, B., Hope, K.,  Bronikowski, R.E.,   Fleischer, R.C. 2020. Sustained immune activation is associated with susceptibility to the amphibian chytrid fungus. Molecular Ecology  DOI: 10.1111/mec.15533

Lassiter, E., Garcés, O., Higgins, K., Baitchman, E., Evans, M., Guerrel, J., Klaphake, E., Snellgrove, D., Ibáñez, R. and Gratwicke, B., 2020. Spindly leg syndrome in Atelopus varius is linked to environmental calcium and phosphate availabilityPloS one15(6), p.e0235285.

Rodriguez, C., Ibáñez, R., Ng, M., Spadafora, C., Durant-Archibold, A.A. and Gutiérrez, M., 2020. 19-Hydroxy-bufalin, a major bufadienolide isolated from the parotoid gland secretions of the Panamanian endemic toad Rhinella centralis (bufonidae), inhibits the growth of Trypanosoma cruzi. Toxicon.

Mendoza, A.M., Bolívar-García, W., Vázquez-Domínguez, E., Ibáñez, R., Parra Olea, G., 2019. The role of Central American barriers in shaping the evolutionary history of the northernmost glassfrog, Hyalinobatrachium fleischmanni (Anura: Centrolenidae). PeerJ 7:e6115.

Medina, D., Ibáñez, R., Lips, K.R. and Crawford, A.J., 2019. Amphibian diversity in Serranía de Majé, an isolated mountain range in eastern PanamáZooKeys859, p.117.

Browne RK, Silla AJ, Upton R, Della-Togna G, Marcec-Greaves R, Shishova NV, Uteshev VK, Proaño B, Pérez OD, Mansour N, Kaurova SA. Sperm collection and storage for the sustainable management of amphibian biodiversity. Theriogenology. 2019 Jul 15;133:187-200.

Lewis CHR., Richards-Zawacki CL., Ibáñez R., Luedtke J., Voyles J., Houser P., Gratwicke B. 2019 Conserving Panamanian harlequin frogs by integrating captive-breeding and research programs. Biological Conservation 236, 180–187. (doi:10.1016/J.BIOCON.2019.05.029)

Scheele, B.C., Pasmans, F., Skerratt, L.F., Berger, L., Martel, A., Beukema, W., Acevedo, A.A., Burrowes, P.A., Carvalho, T., Catenazzi, A., De la Riva, I., Fisher, M.C., Flechas, S. V, Foster, C.N., Frías-Álvarez, P., Garner, T.W.J., Gratwicke, B., Guayasamin, J.M., Hirschfeld, M., Kolby, J.E., Kosch, T.A., La Marca, E., Lindenmayer, D.B., Lips, K.R., Longo, A. V, Maneyro, R., McDonald, C.A., Mendelson, J., Palacios-Rodriguez, P., Parra-Olea, G., Richards-Zawacki, C.L., Rödel, M.-O., Rovito, S.M., Soto-Azat, C., Toledo, L.F., Voyles, J., Weldon, C., Whitfield, S.M., Wilkinson, M., Zamudio, K.R., Canessa, S., 2019. Amphibian fungal panzootic causes catastrophic and ongoing loss of biodiversity. Science Vol. 363, Issue 6434, pp. 1459-1463

C. Martin, Ibáñez, R., Nothias, L.F., Reinert, L.K., Rollins-Smith, L.A., Dorrestein, P.C. and Gutiérrez, M., 2019. Viscosin-like lipopeptides from frog skin bacteria inhibit Aspergillus fumigatus and Batrachochytrium dendrobatidis detected by imaging mass spectrometry and molecular networking. Scientific Reports9(1), p.3019.

Camperio Ciani JF, Guerrel J, Baitchman E, Diaz R, Evans M, Ibañez R, Ross H,  Klaphake E, Nissen B, Pessier AP, Power ML, Arlotta C, Snellgrove D, Wilson B,  Gratwicke B (2018) The relationship between spindly leg syndrome incidence and water composition, overfeeding, and diet in newly metamorphosed harlequin frogs (Atelopus spp.). PLoS ONE 13(10): e0204314.

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.

Della Togna, G., Gratwicke, B., Evans, M., Augustine, L., Chia, H., Bronikowski, E., Murphy, J.B. and Comizzoli, P., 2018. Influence of extracellular environment on the motility and structural properties of spermatozoa collected from hormonally stimulated Panamanian golden frog (Atelopus zeteki). Theriogenology108, pp.153-160.

Varela, B.J., Lesbarrères, D., Ibáñez, R. and Green, D.M., 2018. Environmental and host effects on skin bacterial community composition in Panamanian frogs. Frontiers in Microbiology9, p.298.

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.

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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