iarjalsIARJALSIARJALS2708-5104https://doi.org/10.47310/iarjals.2021.v02i01.025Comparison of Methods to Improve the Capture of Marmosa Mexicana in a Neotropical AreaFlores-PeredoRafaelMaríadel CoralRosas-RonzónBeatrizdel SocorroBolívarCiméIsacMella-MéndezLaboratorio de Ecología, Instituto de Investigaciones Forestales, Universidad Veracruzana, Interior del Parque Ecológico el Haya S/N, Xalapa, Veracruz, MéxicoDepartamento de Conservación de la Biodiversidad, El Colegio de la Frontera Sur, Periférico Sur S/N, Barrio María Auxiliadora, San Cristóbal de las Casas, Chiapas, MéxicoInstituto de Neuroetología, Universidad Veracruzana, Av. Dr. Luis Castelazo, Industrial de las ánimas, 91190 Xalapa, Veracruz, MéxicoMarmosa mexicana, a small semi-arboreal marsupial with a Central-American distribution, from the southern portion of the Mexican state of Tamaulipas to western Panama, remains one of the least-represented species in small-mammals inventories, and one of the least known. Capture is usually done with traps placed on the ground, baited with peanut butter and oats. In the Neotropical realm, the vertical placement of traps on trees with different baits has proved to be more efficient in the capture of marsupials. In this study, we comparatively evaluated the effectiveness of different types of bait and trap placement (ground versus tree) in the capture of M. mexicana in a peri-urban park in Xalapa, Veracruz, Mexico. From January to July 2017, six linear transects 200 m long were randomly established for the placement of 40 Sherman® traps every 5 m, alternating ground and tree locations (at a height of 4 m). Traps were baited with four items: banana with meat and crickets, apple with blueberries, papaya with sweet corn, and peanut butter with oats. A factorial ANOVA was used to evaluate the effect of the type of bait and site on the number of catches. In a sampling effort of 5,040 trap nights, 75 catches were recorded, which represents a success rate of 1.48%. We found that only the site of trap placement was significant. Our results suggest that, with any of the baits, the placement of traps on trees can make the capture of M. mexicana more successful.