Anuran tadpoles learn to recognize injury cues from members of the same prey guild

Authors
Pueta, Mariana; Perotti, Maria Gabriela
Publication Year
2016
Language
English
Format
article
Status
Published version
Description
Recognition of predation risk from cuesreleased from injured heterospecific could be beneficialwhen prey belongs to the same prey guild. Here, we performedthree experiments. Experiment 1 showed that P.thaul tadpoles reduced their activity levels when exposedto conspecific injury cues, but not when exposed toamphipod injury cues. Experiment 2 tested whether P.thaul tadpoles can learn to recognize predation risk fromchemical cues released from injured heterospecifics fromthe same prey guild (amphipod, Hyalella patagonica). Agroup of tadpoles were conditioned by exposing them to aspecific concentration of amphipod injury cues paired withconspecific injury cues. Two days later, we evaluatedchanges in the activity of tadpoles when they were exposedto amphipod cues. As a control of learning, we used anunpaired group. Additionally, we used more control groupsto fully investigate the learning mechanism. Our resultsshowed that tadpoles can learn to recognize predation riskfrom injured amphipods and that the mechanism underlyingthe observed learned response could be associative.Experiment 3 replicated Experiment 2 and also showed thata low concentration of amphipod cues did not sustain thatlearning.
Fil: Pueta, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina
Fil: Perotti, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Subject
ASSOCIATIVE LEARNING
ANURAN TADPOLES
AMPHIPODS
PREDATION RISK
Otras Ciencias Biológicas
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/66178