Abstract
The population study of threatened species requires marking techniques that do not affect the survival of individuals. In this study, we evaluated the effectiveness of visible implant elastomer (VIE) in the identification and survival of individuals of the salamander Parvimolge townsendi. We compared three salamander groups under different treatments: intervened, simulated intervention and control. No significant mortality differences were observed between groups (with two, none, and one individual, respectively), but implant migration was observe in four of 10 intervened individuals. Although VIE does not have a significant effect on survival, implant migration should be considered before use in population studies.
Highlights
Use of visible implant elastomer and its effect on the survival of an endangered minute salamander
Alternatives for studying amphibians in the field include mark and recapture methods, the effectiveness of which depends on the natural history of the species of interest, the resources available, and even the expected number of individuals to mark (Heyer et al, 1994)
The method used must comply with the assumptions of generating unique, easy–to–interpret and persistent marks with the minimal impact on survival or detection (Campbell–Grant, 2008)
Summary
Use of visible implant elastomer and its effect on the survival of an endangered minute salamander. Evaluamos la efectividad de los implantes visibles de elastómero (VIE, en sus siglas en inglés) en la identificación y supervivencia de individuos de la salamandra Parvimolge townsendi.
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