TY - JOUR AU - Escobar, Martín A. H. AU - Puelma-Diez, Francisca AU - Villaseñor, Nélida R. PY - 2022/12/31 Y2 - 2024/03/28 TI - PIT-tag as permanent marking method on Myotis chiloensis (Chiroptera: Vespertilionidae) and Tadarida brasiliensis (Chiroptera: Molossidae) in central Chile JF - Gayana JA - Gayana VL - 86 IS - 2 SE - Original Articles DO - 10.4067/S0717-65382022000200040 UR - https://gayana.cl/index.php/gn/article/view/291 SP - 40-46 AB - <p>Tracking and monitoring of bat populations have frequently involved the use of inappropriate marking methods. Due to their small size, passive integrated transponders (<em>PIT-tag</em>) provide a permanent mark for small vertebrate species through their sub-dermal implantation. However, few studies assess their effects on bats. Here we present the first study on the effect of PIT-tags on bats in Latin America. We evaluated the effect of the use of <em>PIT-tag </em>as a permanent mark on the recapture rate and body condition in <em>Myotis chiloensis </em>and <em>Tadarida brasiliensis </em>in central Chile. For both species, we marked a group of individuals with <em>PIT-tag </em>and left an equivalent group without a mark. In six surveys, between January and March 2019, we captured a total of 262 individuals, 176 corresponding to the species <em>M. chiloensis </em>and 86 to <em>T. brasiliensis</em>, with a total of 43 and 33 recaptures, respectively. The use of <em>PIT-tag </em>had no effect neither on the recapture rate nor body condition for both bat species. Although more investigations are required, our results suggested that the use of <em>PIT-tag </em>as a marking method is adequate and safe for this bat species and it could be implemented in long-term studies.</p> ER -