First record of Tweedy’s Crab-eating Rat, Ichthyomys tweedii Anthony, 1921 (Rodentia, Cricetidae, Sigmodontinae), for Costa Rica by José D. Ramírez-Fernández, Francisco J. Durán A., Marcela Fernández-Vargas

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Effect of fragmentation on the Costa Rican dry forest avifauna by Gilbert Barrantes, Diego Ocampo, José D. Ramírez-Fernández, Eric J. Fuchs

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Treponema pallidum genetic diversity and its implications for targeted vaccine development: A cross-sectional study of early syphilis cases in Southwestern Colombia. by Juan C Salazar, Fabio Vargas-Cely, Jonny A García-Luna, Lady G Ramirez, Everton B Bettin, Nelson Romero-Rosas, María F Amórtegui, Sebastián Silva, Oscar Oviedo, Julie Vigil, Carson J La Vake, Ximena Galindo, Jose D Ramirez, Alvaro J Martínez-Valencia, Melissa J Caimano, Christopher M Hennelly, Farhang Aghakhanian, M Anthony Moody, Arlene C Seña, Jonathan B Parr, Kelly L Hawley, Eduardo López-Medina, Justin D Radolf

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Ecological modeling, biogeography, and phenotypic analyses setting the tiger cats’ hyperdimensional niches reveal a new species by Tadeu G. de Oliveira, Lester A. Fox-Rosales, José D. Ramírez-Fernández, Juan C. Cepeda-Duque, Rebecca Zug, Catalina Sanchez-Lalinde, Marcelo J. R. Oliveira, Paulo H. D. Marinho, Alejandra Bonilla-Sánchez, Mara C. Marques, Katia Cassaro, Ricardo Moreno, Damián Rumiz, Felipe B. Peters, Josué Ortega, Gitana Cavalcanti, Michael S. Mooring, Steven R. Blankenship, Esteban Brenes-Mora, Douglas Dias, Fábio D. Mazim, Eduardo Eizirik, Jaime L. Diehl, Rosane V. Marques, Ana Carolina C. Ribeiro, Reginaldo A. Cruz, Emanuelle Pasa, Lyse P. C. Meira, Alex Pereira, Guilherme B. Ferreira, Fernando F. de Pinho, Liana M. M. Sena, Vinícius R. de Morais, Micheli Ribeiro Luiz, Vitor E. C. Moura, Marina O. Favarini, Karla P. G. Leal, Paulo G. C. Wagner, Maurício C. dos Santos, James Sanderson, Elienê P. Araújo, Flávio H. G. Rodrigues

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