Fecha/hora: 11/06/2024 21:29:25

Biblioteca(s): 	INIA Treinta y Tres.	
Fecha corriente: 	10/09/2020	
Fecha de la última actualización: 	01/02/2021	
Autoria: 	GARCÍA, L. F.; NÚÑEZ, E.; LACAVA, M.; SILVA, H.; MARTÍNEZ, S.; PÉTILLON, J.	
Afiliación: 	LUIS FERNANDO GARCÍA, Grupo multidisciplinario en Ecología para la Agricultura, Centro Universitario Regional del Este (CURE), UDELAR, Treinta y Tres; ERIKA NÚÑEZ, PDU - Estudios Interdisciplinarios de Sistemas Territoriales Complejos, CENUR Noreste, Universidad de la República, Rivera Uruguay. Programa para el Desarrollo en Ciencias Básicas (PEDECIBA, UDELAR, Montevideo, Uruguay.; MARIÁNGELES LACAVA, PDU Estudios Interdisciplinarios de Sistemas Territoriales Complejos, CENUR Noreste, UDELAR, Rivera, Uruguay.; HORACIO SILVA, Estación Experimental Mario A. Cassinoni, Facultad de Agronomía, UDELAR, Paysandú, Uruguay.; SEBASTIÁN MARTÍNEZ KOPP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIEN PÉTILLON, UMR CNRS Université de Rennes, Rennes, France.	
Título: 	Experimental assessment of trophic ecology in a generalist spider predator: implications for biocontrol in uruguayan crops. [Original contribution].	
Año de publicación: 	2021	
Fuente/Imprenta: 	Journal of Applied Entomology, February 2021, Volume145, Issue1-2, p.82-91. Doi: https://doi.org/10.1111/jen.12811	
ISSN: 	0931-2048	
DOI: 	doi.org/10.1111/jen.12811	
Idioma: 	Inglés	
Notas: 	Article history: Received: 22 April 2020; Revised: 15 July 2020; Accepted: 17 July 2020; First published: 05 September 2020.	
Contenido: 	Conservative biological control promotes the use of native natural enemies to limit the size and growth of pest populations. Although spiders constitute one of the most important groups of native predators in several crops, their trophic ecology remains largely unknown, especially for several generalist taxa. In laboratory, we assessed the predatory behaviour of a wandering spider (the wolf spider Lycosa thorelli (Keyserling, 1877) against several arthropods varying in size and trophic positions, all found in South American soybean and rice crops. As prey we used the bug Piezodorus guildinii (Westwood, 1837) as well as larvae and adults of the moth Spodoptera frugiperda (Smith, 1797), both being considered important pests in Uruguayan crops. We also used several non&#8208;pest arthropods as prey, sarcophagid flies, carabid beetles and wolf spiders. All prey were attacked in more or less high, although not statistically differing, proportions. However, carabids were not consumed, and bugs were consumed in significantly lower proportions than flies. A negative correlation was found between prey size and acceptance rate. Immobilization times were longer against larvae when compared to moths and flies, while predatory sequences were longer for bugs when compared to flies, moths and spiders. In addition, we found a positive effect of prey size on predatory sequence length and complexity. Our results confirm the ability of spiders to attack and feed upon prey with different morphologies, included well&#8208;defended arthropods, and their potential use as natural enemies of several pests in South American crops.	
Palabras-Clave: 	ARAÑA LOBO; BEHAVIOURAL SEQUENCE; BIOLOGICAL CONTROL; CONDITIONAL PREY ACCEPTANCE; RICE; SOYBEAN; WOLF SPIDER.	
Thesagro: 	ARROZ; CONTROL BIOLÓGICO; SOJA.	
Categoría del tema: 	F01 Cultivo	
Registro original: 	INIA Treinta y Tres (TT)	
Ejemplares: 	TT - (103130-1) - PXI - AP - DD - PP/JAE/2021/García -  -  - DIS