Neotropical Toxins Lab members in bold


† Undergraduate student


‡ Graduate student


* Corresponding author


Bayona-Serrano J.D., F.G. Grazziotin, D. Salazar-Valenzuela, R.H. Valente, P.G. Nachtigall, M. Colombini, A.M. Moura da Silva and I.L.M. Junqueira-de-Azevedo*. 2023. Independent recruitment of different types of phospholipases A2 to the venoms of Caenophidian snakes: the rise of PLA2-IIE within Pseudoboini (Dipsadidae). Molecular Biology and Evolution: msad147. [Open Access].

Almeida, J.R., A. Gomes, B. Mendes, L. Aguiar, M. Ferreira, M. Borges Costa Brioschi, D. Duarte, F. Nogueira, S. Cortes, D. Salazar-Valenzuela, D.C. Miguel, C. Teixeira, P. Gameiro and P. Gomes*. 2023. Unlocking the potential of snake venom-based molecules against the malaria, Chagas disease, and leishmaniasis triad. International Journal of Biological Macromolecules 124745. [Open Access].

Carrasco, P.A.*, C. Koch, F.G. Grazziotin, P.J. Venegas, J.C. Chaparro, G.J. Scrocchi, D. Salazar-Valenzuela, G.C. Leynaud and C.I. Mattoni. 2023. Total-evidence phylogeny and evolutionary morphology of New World pitvipers (Serpentes: Viperidae: Crotalinae). Cladistics 39: 71-100. [Read-only version].

Loaiza-Lange, A.‡, D. Székely*, O. Torres-Carvajal, N. Tinoco, D. Salazar-Valenzuela and P. Székely. 2023. Feeding ecology of the Terciopelo pitviper snake (Bothrops asper) in Ecuador. PeerJ 11: e14817. [Open Access].

Rödel, M.O.*, A. Loaiza-Lange, J. Penner, K.D. Neira-Salamea and D. Salazar-Valenzuela. 2023. A mouth full of blood–autohaemorrhaging in three Ecuadorian snakes (Squamata: Colubridae & Tropidophiidae). Herpetology Notes 16: 25-30. [Open Access].

Páez-Vacas, M.*, M.R. Bustamante, N. Baer, N.H. Oleas, M.A. Argoti, S. Espinoza F., Z. Lozano, B. Morales-Espín†, M.M. Gavilanez, D.A. Donoso, D. Franco-Mena†, J. Brito, C.M. Pinto, L. Salazar, M. Endara, A. Falconí-López, E. Bravo-Vera†, E. Sánchez-Lara†, J. Rivera-Albuja†, L. Mena†, K. Muñoz-Lara†, D. Navas†, F.M. Ortíz-Galarza†, T. Pamballo†, D. Pineda†, J. Rivadeneira†, S. Segura†, K. Valencia†, P. Vásquez-Barba† and D. Salazar-Valenzuela. 2023. Citizen science as a tool for education: First Bioblitz in Quito, Ecuador. In IOP Conference Series: Earth and Environmental Science 1141: 012004. [Open Access].


Jaynes, K.E.*, M.I. Páez-Vacas, D. Salazar-Valenzuela, J.M. Guayasamin, A. Terán-Valdez, F.R. Siavichay, S.W. Fitzpatrick and L.A. Coloma. 2022. Harlequin frog rediscoveries provide insights into species persistence in the face of drastic amphibian declines. Biological Conservation 276: 109784. [Open Access]

Hernández-Altamirano, J.A.†, D. Salazar-Valenzuela, E.J. Medina-Villamizar, D.R. Quirola, K. Patel, S. Vaiyapuri, B. Lomonte and J.R. Almeida*. 2022. First insights into the venom composition of two Ecuadorian coral snakes. International Journal of Molecular Sciences 23: 14686. [Open Access]

Patiño, R.S.P.†, D. Salazar-Valenzuela, A.A. Robles-Loaiza, P. Santacruz-Ortega and J.R. Almeida*. 2022. A retrospective study of clinical and epidemiological characteristics of snakebite in Napo province, Ecuadorian Amazon. Transactions of The Royal Society of Tropical Medicine and Hygiene, trac071. [PDF]

Vera-Palacios, A.L., J.D. Sacoto-Torres, J.A. Hernández-Altamirano, A. Moreno, M.C. Peñuela-Mora, D. Salazar-Valenzuela, N.G.S. Mogollón and J.R. Almeida*. 2022. A first look at the inhibitory potential of Urospatha sagittifolia (Araceae) ethanolic extract for Bothrops atrox snakebite envenomation. Toxins 14: 496. [Open Access]


Patiño, R.S.P.†, D. Salazar-Valenzuela, E. Medina-Villamizar, B. Mendes, C. Proaño-Bolaños, S.L. da Silva and J.R. Almeida*. 2021. Bothrops atrox from Ecuadorian Amazon: initial analyses of venoms from individuals. Toxicon 193: 63–72. [PDF]


Mora-Obando, D., D. Salazar-Valenzuela, D. Pla, B. Lomonte, J.A. Guerrero-Vargas, S. Ayerbe, H.L. Gibbs and J.J. Calvete*. 2020. Venom variation in Bothrops asper lineages from north-western South America. Journal of Proteomics 229: 103945. [PDF]


Salazar-Valenzuela, D.*, U. Kuch, O. Torres-Carvajal, J.H. Valencia and H.L. Gibbs. 2019. Divergence of tropical pitvipers promoted by independent colonization events of dry montane Andean habitats. Journal of Biogeography 46: 1826–1840. [PDF]

Timms, J., J.C. Chaparro, P.J. Venegas, D. Salazar-Valenzuela, G. Scrocchi, J. Cuevas, G. Leynaud and P.A. Carrasco*. 2019. A new species of pitviper of the genus Bothrops (Serpentes: Viperidae: Crotalinae) from the Central Andes of South America. Zootaxa 4656: 99–120. [PDF]

Akcali, C.K.*, H.A. Pérez-Mendoza, D. Salazar-Valenzuela, D. Kikuchi, J.M. Guayasamin and D.W. Pfennig. 2019. Evaluating the utility of camera traps in field studies of predation. PeerJ 7: e6487. [Open Access]

Torres-Carvajal, O.*, G. Pazmiño-Otamendi and D. Salazar-Valenzuela. 2019. Reptiles of Ecuador: a resource-rich online portal, with dynamic checklists and photographic guides. Amphibian & Reptile Conservation 13: 209–229. [Open Access]


Gibbs, H.L.*, M. Sovic, D. Amazonas, H. Chalkidis, D. Salazar-Valenzuela and A. Moura. 2018. Recent lineage diversification in a venomous snake through dispersal across the Amazon River. Biological Journal of the Linnean Society 123: 651–665. [Open Access]

Pomerantz, A.*, N. Peñafiel, A. Arteaga, L. Bustamante, F. Pichardo, L.A. Coloma, C.L. Barrio-Amorós, D. Salazar-Valenzuela and S. Prost*. 2018. Real-time DNA barcoding in a rainforest using nanopore sequencing: opportunities for rapid biodiversity assessments and local capacity building. GigaScience 7: 1–14. [Open Access]

Arteaga, A.*, D. Salazar-Valenzuela, K. Mebert, N. Peñafiel, G. Aguiar, J.C. Sánchez-Nivicela, R.A. Pyron, T.J. Colston, D.F. Cisneros-Heredia, M.H. Yánez-Muñoz, P.J. Venegas, J.M. Guayasamin and O. Torres-Carvajal. 2018. Systematics of South American snail-eating snakes (Serpentes, Dipsadini), with the description of five new species from Ecuador and Peru. Zookeys 766: 79–147. [Open Access]


Ministerio de Salud Pública. 2017. Manejo clínico del envenenamiento por mordeduras de serpientes venenosas y picaduras de escorpiones. Protocolo basado en evidencia. Dirección Nacional de Prevención y Control y Dirección de Normatización. Primera Edición. Quito, Ecuador. [PDF]


Salazar-Valenzuela, D.*, A. Martins, L. Amador-Oyola and O. Torres-Carvajal. 2015. A new species and country record of threadsnakes (Serpentes: Leptotyphlopidae) from northern Ecuador. Amphibian & Reptile Conservation 8: 107–120. [Open Access]

Salazar-Valenzuela, D., D. Mora-Obando, M.L. Fernández, A. Loaiza-Lange, H.L. Gibbs and B. Lomonte*. 2014. Proteomic and toxicological profiling of the venom of Bothrocophias campbelli, a pitviper species from Ecuador and Colombia. Toxicon 90: 15–25. [PDF]

Salazar-Valenzuela, D.*, O. Torres-Carvajal and P. Passos. 2014. A new species of Atractus (Serpentes: Dipsadidae) from the Andes of Ecuador. Herpetologica 70: 350–363. [PDF]

Salazar-Valenzuela, D.*, E.O. Carrillo and S. Aldás. 2010. Tricheilostoma anthracinum: geographic distribution. Herpetological Review 41: 111–112. [PDF]

Bravo, F. and D. Salazar-Valenzuela. 2009. A new species of Sycorax Curtis (Diptera, Psychodidae) collected on harlequin frogs (Anura: Bufonidae, Atelopus) in the Ecuadorian Andes. Zootaxa 2093: 37–42. [PDF]

Passos, P., D.F. Cisneros-Heredia and D. Salazar-Valenzuela. 2007. Rediscovery and redescription of the rare Andean snake Atractus modestus. Herpetological Journal 17: 1–6. [Open Access]

Boada, C., D. Salazar-Valenzuela, A. Freire Lascano and U. Kuch. 2005. The diet of Bothrops asper (Garman, 1884) in the Pacific lowlands of Ecuador. Herpetozoa 18: 77–79. [PDF]