Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite

Brood parasitism imposes several fitness costs on the host species. To reduce these costs, hosts of avian brood parasites have evolved various defenses, of which egg rejection is the most prevalent. In the face of variable host-parasite mimicry and the costs of egg discrimination itself, many hosts...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	de la Colina, María Alicia, Pompilio, Lorena, Reboreda, Juan Carlos, Mahler, Bettina
Publicado:	2012
Materias:	Antiparasite defenses Chalk-browed Mockingbird Egg rejection Eggshell spotting Shiny Cowbird animal article association female host parasite interaction nesting oocyte parasitology pattern recognition recognition songbird Animals Cues Female Host-Parasite Interactions Nesting Behavior Ovum Passeriformes Pattern Recognition, Visual Recognition (Psychology) Aves Mimus saturninus Molothrus Molothrus bonariensis
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14359448_v15_n5_p881_delaColina http://hdl.handle.net/20.500.12110/paper_14359448_v15_n5_p881_delaColina
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14359448_v15_n5_p881_delaColina
record_format	dspace
spelling	paper:paper_14359448_v15_n5_p881_delaColina2023-06-08T16:15:40Z Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite de la Colina, María Alicia Pompilio, Lorena Reboreda, Juan Carlos Mahler, Bettina Antiparasite defenses Chalk-browed Mockingbird Egg rejection Eggshell spotting Shiny Cowbird animal article association female host parasite interaction nesting oocyte parasitology pattern recognition recognition songbird Animals Cues Female Host-Parasite Interactions Nesting Behavior Ovum Passeriformes Pattern Recognition, Visual Recognition (Psychology) Aves Mimus saturninus Molothrus Molothrus bonariensis Brood parasitism imposes several fitness costs on the host species. To reduce these costs, hosts of avian brood parasites have evolved various defenses, of which egg rejection is the most prevalent. In the face of variable host-parasite mimicry and the costs of egg discrimination itself, many hosts reject only some foreign eggs. Here, we experimentally varied the recognition cues to study the underlying cognitive mechanisms used by the Chalk-browed Mockingbird (Mimus saturninus) to reject the white immaculate eggs laid by the parasitic Shiny Cowbird (Molothrus bonariensis). Immaculate eggs are the only parasite eggs rejected by this host, as it accepts all polymorphic, spotted eggs laid by cowbirds. Using a within-breeding pair experimental design, we tested for the salience of spotting, UV reflectance, and brightness in eliciting rejection. We found that the presence of spotting significantly decreased the probability of rejection while increments in brightness significantly increased rejection frequencies. The cognitive rules underlying mockingbird rejection behavior can be explained by a decision-making model which predicts changes in the levels of rejection in direct relation to the number of relevant attributes shared between host and parasite eggs. © 2012 Springer-Verlag. Fil:de la Colina, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pompilio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Reboreda, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mahler, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14359448_v15_n5_p881_delaColina http://hdl.handle.net/20.500.12110/paper_14359448_v15_n5_p881_delaColina
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Antiparasite defenses Chalk-browed Mockingbird Egg rejection Eggshell spotting Shiny Cowbird animal article association female host parasite interaction nesting oocyte parasitology pattern recognition recognition songbird Animals Cues Female Host-Parasite Interactions Nesting Behavior Ovum Passeriformes Pattern Recognition, Visual Recognition (Psychology) Aves Mimus saturninus Molothrus Molothrus bonariensis
spellingShingle	Antiparasite defenses Chalk-browed Mockingbird Egg rejection Eggshell spotting Shiny Cowbird animal article association female host parasite interaction nesting oocyte parasitology pattern recognition recognition songbird Animals Cues Female Host-Parasite Interactions Nesting Behavior Ovum Passeriformes Pattern Recognition, Visual Recognition (Psychology) Aves Mimus saturninus Molothrus Molothrus bonariensis de la Colina, María Alicia Pompilio, Lorena Reboreda, Juan Carlos Mahler, Bettina Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
topic_facet	Antiparasite defenses Chalk-browed Mockingbird Egg rejection Eggshell spotting Shiny Cowbird animal article association female host parasite interaction nesting oocyte parasitology pattern recognition recognition songbird Animals Cues Female Host-Parasite Interactions Nesting Behavior Ovum Passeriformes Pattern Recognition, Visual Recognition (Psychology) Aves Mimus saturninus Molothrus Molothrus bonariensis
description	Brood parasitism imposes several fitness costs on the host species. To reduce these costs, hosts of avian brood parasites have evolved various defenses, of which egg rejection is the most prevalent. In the face of variable host-parasite mimicry and the costs of egg discrimination itself, many hosts reject only some foreign eggs. Here, we experimentally varied the recognition cues to study the underlying cognitive mechanisms used by the Chalk-browed Mockingbird (Mimus saturninus) to reject the white immaculate eggs laid by the parasitic Shiny Cowbird (Molothrus bonariensis). Immaculate eggs are the only parasite eggs rejected by this host, as it accepts all polymorphic, spotted eggs laid by cowbirds. Using a within-breeding pair experimental design, we tested for the salience of spotting, UV reflectance, and brightness in eliciting rejection. We found that the presence of spotting significantly decreased the probability of rejection while increments in brightness significantly increased rejection frequencies. The cognitive rules underlying mockingbird rejection behavior can be explained by a decision-making model which predicts changes in the levels of rejection in direct relation to the number of relevant attributes shared between host and parasite eggs. © 2012 Springer-Verlag.
author	de la Colina, María Alicia Pompilio, Lorena Reboreda, Juan Carlos Mahler, Bettina
author_facet	de la Colina, María Alicia Pompilio, Lorena Reboreda, Juan Carlos Mahler, Bettina
author_sort	de la Colina, María Alicia
title	Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
title_short	Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
title_full	Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
title_fullStr	Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
title_full_unstemmed	Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
title_sort	different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14359448_v15_n5_p881_delaColina http://hdl.handle.net/20.500.12110/paper_14359448_v15_n5_p881_delaColina
work_keys_str_mv	AT delacolinamariaalicia differentrecognitioncuesrevealthedecisionrulesusedforeggrejectionbyhostsofavariablymimeticavianbroodparasite AT pompiliolorena differentrecognitioncuesrevealthedecisionrulesusedforeggrejectionbyhostsofavariablymimeticavianbroodparasite AT reboredajuancarlos differentrecognitioncuesrevealthedecisionrulesusedforeggrejectionbyhostsofavariablymimeticavianbroodparasite AT mahlerbettina differentrecognitioncuesrevealthedecisionrulesusedforeggrejectionbyhostsofavariablymimeticavianbroodparasite
_version_	1768545708035538944

Different recognition cues reveal the decision rules used for egg rejection by hosts of a variably mimetic avian brood parasite

Ejemplares similares