Vista Equipo: Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae

Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae

The study of how trap design responds to biotic and abiotic conditions can help to understand the selective forces affecting the foraging of trap-building organisms. We experimentally tested whether pit design can be modified by intraspecific competition for space in larvae of Myrmeleon crudelis,...

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Autores Principales:	Farji-Brener, Alejandro Gustavo, Juncosa Polzella, Agostina Silvia, Madrigal-Tejada, Daniela, Centeno-Alvarado, Diego, Hernández-Soto, Mariana, Soto-Huaira, Mayori, Gutiérrez-Cruz, Sebastián
Formato:	Artículo
Idioma:	Inglés
Publicado:	Blackwell Publishing Ltd 2021
Materias:	EXTENDED PHENOTYPE INTRASPECIFIC COMPETITION LA SELVA BIOLOGICAL STATION MYRMELEON CRUDELIS LARVAS HORMIGAS INSECTOS BOSQUES TROPICALES COSTA RICA
Acceso en línea:	http://hdl.handle.net/11056/21149

id	RepoUNACR21149
recordtype	dspace
spelling	RepoUNACR211492021-09-14T16:17:10Z Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae Farji-Brener, Alejandro Gustavo Juncosa Polzella, Agostina Silvia Madrigal-Tejada, Daniela Centeno-Alvarado, Diego Hernández-Soto, Mariana Soto-Huaira, Mayori Gutiérrez-Cruz, Sebastián EXTENDED PHENOTYPE INTRASPECIFIC COMPETITION LA SELVA BIOLOGICAL STATION MYRMELEON CRUDELIS LARVAS HORMIGAS INSECTOS BOSQUES TROPICALES COSTA RICA The study of how trap design responds to biotic and abiotic conditions can help to understand the selective forces affecting the foraging of trap-building organisms. We experimentally tested whether pit design can be modified by intraspecific competition for space in larvae of Myrmeleon crudelis, a common sit-and-wait predator that digs conical pit traps in the soil to capture walking arthropods. In a tropical forest in Costa Rica, we measured pit dimensions, larval body size, and the level of competition (i.e., density of neighboring traps) in 40 antlion larvae. These larvae were then taken to the laboratory and allowed to build new traps in individual containers. We measured within-individual changes in the size of traps in the field and in the laboratory, and related these to the level of competition experienced in the field. Larvae with relatively high levels of competition in the field showed a greater increase in the size of their pits in the laboratory. This change was independent of larval size. Larvae with none or few neighbors in the field showed little change in their pit sizes, whereas those with higher competition levels increased their diameter and depth up to 1,400% and 1,000%, respectively. Our results demonstrate that, at least in high-density aggregations, pit design is restricted by competition in addition to the constraints imposed by body size. This work suggests that biotic interactions can play a role in the design of extended phenotypes in sit-and-wait predators that live in dense aggregations El estudio de cómo el diseño de las trampas responde a las condiciones bióticas y abióticas puede ayudar a comprender las fuerzas selectivas que afectan la búsqueda de alimento de los organismos constructores de trampas. Probamos experimentalmente si el diseño del pozo puede modificarse mediante la competencia intraespecífica por el espacio en las larvas de Myrmeleon crudelis, un depredador común que se sienta y espera que excava trampas cónicas en el suelo para capturar artrópodos que caminan. En un bosque tropical de Costa Rica, medimos las dimensiones del pozo, el tamaño del cuerpo de las larvas y el nivel de competencia (es decir, la densidad de las trampas vecinas) en 40 larvas de hormiga león. Luego, estas larvas se llevaron al laboratorio y se les permitió construir nuevas trampas en contenedores individuales. Medimos los cambios intraindividuales en el tamaño de las trampas en el campo y en el laboratorio, y los relacionamos con el nivel de competencia experimentado en el campo. Las larvas con niveles relativamente altos de competencia en el campo mostraron un mayor aumento en el tamaño de sus hoyos en el laboratorio. Este cambio fue independiente del tamaño de las larvas. Las larvas con pocos o nulos vecinos en el campo mostraron pocos cambios en el tamaño de sus fosas, mientras que aquellas con niveles de competencia más altos aumentaron su diámetro y profundidad hasta 1.400% y 1.000%, respectivamente. Nuestros resultados demuestran que, al menos en agregaciones de alta densidad, el diseño del pozo está restringido por la competencia además de las restricciones impuestas por el tamaño del cuerpo. Este trabajo sugiere que las interacciones bióticas pueden desempeñar un papel en el diseño de fenotipos extendidos en depredadores que se sientan y esperan que viven en densas agregaciones. Universidad Nacional del Comahue, Argentina Universidad Nacional de Córdoba, Argentina Universidad Nacional, Costa Rica Universidade Federal de Pernambuco, Brasil Instituto de Ecología, México Universidad Nacional de San Agustín, Perú Museo de Historia Natural Noel Kempff Mercado, Bolivia Escuela de Ciencias Biológicas 2021-09-14T16:17:06Z 2021-09-14T16:17:06Z 2020-11-01 http://purl.org/coar/resource_type/c_6501 01791613 http://hdl.handle.net/11056/21149 10.1111/eth.13079 eng Acceso embargado application/pdf Blackwell Publishing Ltd Ethology vol.126 no.11 1031-1037 2020
institution	Universidad Nacional de Costa Rica
collection	Repositorio UNA-Costa Rica
language	Inglés
topic	EXTENDED PHENOTYPE INTRASPECIFIC COMPETITION LA SELVA BIOLOGICAL STATION MYRMELEON CRUDELIS LARVAS HORMIGAS INSECTOS BOSQUES TROPICALES COSTA RICA
spellingShingle	EXTENDED PHENOTYPE INTRASPECIFIC COMPETITION LA SELVA BIOLOGICAL STATION MYRMELEON CRUDELIS LARVAS HORMIGAS INSECTOS BOSQUES TROPICALES COSTA RICA Farji-Brener, Alejandro Gustavo Juncosa Polzella, Agostina Silvia Madrigal-Tejada, Daniela Centeno-Alvarado, Diego Hernández-Soto, Mariana Soto-Huaira, Mayori Gutiérrez-Cruz, Sebastián Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
description	The study of how trap design responds to biotic and abiotic conditions can help to understand the selective forces affecting the foraging of trap-building organisms. We experimentally tested whether pit design can be modified by intraspecific competition for space in larvae of Myrmeleon crudelis, a common sit-and-wait predator that digs conical pit traps in the soil to capture walking arthropods. In a tropical forest in Costa Rica, we measured pit dimensions, larval body size, and the level of competition (i.e., density of neighboring traps) in 40 antlion larvae. These larvae were then taken to the laboratory and allowed to build new traps in individual containers. We measured within-individual changes in the size of traps in the field and in the laboratory, and related these to the level of competition experienced in the field. Larvae with relatively high levels of competition in the field showed a greater increase in the size of their pits in the laboratory. This change was independent of larval size. Larvae with none or few neighbors in the field showed little change in their pit sizes, whereas those with higher competition levels increased their diameter and depth up to 1,400% and 1,000%, respectively. Our results demonstrate that, at least in high-density aggregations, pit design is restricted by competition in addition to the constraints imposed by body size. This work suggests that biotic interactions can play a role in the design of extended phenotypes in sit-and-wait predators that live in dense aggregations
format	Artículo
author	Farji-Brener, Alejandro Gustavo Juncosa Polzella, Agostina Silvia Madrigal-Tejada, Daniela Centeno-Alvarado, Diego Hernández-Soto, Mariana Soto-Huaira, Mayori Gutiérrez-Cruz, Sebastián
author_sort	Farji-Brener, Alejandro Gustavo
title	Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
title_short	Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
title_full	Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
title_fullStr	Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
title_full_unstemmed	Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
title_sort	disadvantages of living in a populous neighborhood for sit-andwait predators: competition for space reduces pit-trap size in antlion larvae
publisher	Blackwell Publishing Ltd
publishDate	2021
url	http://hdl.handle.net/11056/21149
_version_	1796096247894900736
score	12.040689

Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae

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