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Density-mediated foraging behavioral responses of Rhyzopertha dominica (Coleoptera: Bostrichidae) and Tribolium castaneum (Coleoptera: Tenebrionidae).
Ponce, Marco A; Ranabhat, Sabita; Bruce, Alexander; Van Winkle, Taylor; Campbell, James F; Morrison Iii, William R.
Afiliação
  • Ponce MA; Department of Entomology, Kansas State University, 123 Waters Hall, 1603 Old Claflin Place, Manhattan, KS, 66506, USA. marco26@k-state.edu.
  • Ranabhat S; Department of Entomology, Kansas State University, 123 Waters Hall, 1603 Old Claflin Place, Manhattan, KS, 66506, USA.
  • Bruce A; Department of Entomology and Plant Pathology, University of Tennessee, 2505 E. J. Chapman Dr., 370 Plant Biotechnology, Knoxville, TN, 37996, USA.
  • Van Winkle T; School of Planning, Design, and Construction, Michigan State University, East Lansing, MI, 48824, USA.
  • Campbell JF; Agricultural Research Service, Center for Grain and Animal Health Research, USDA, 1515 College Ave., Manhattan, KS, 66502, USA.
  • Morrison Iii WR; Agricultural Research Service, Center for Grain and Animal Health Research, USDA, 1515 College Ave., Manhattan, KS, 66502, USA.
Sci Rep ; 14(1): 12259, 2024 05 28.
Article em En | MEDLINE | ID: mdl-38806558
ABSTRACT
Tribolium castaneum and Rhyzopertha dominica are cosmopolitan, destructive postharvest pests. Although research has investigated how high densities of T. castaneum affect attraction to the aggregation pheromone by conspecifics, research into the behavioral response of both species to food cues after high density exposure has been lacking despite its importance to foraging ecology. Our goal was to manipulate and observe the effects of crowding on the behavioral response of both species to common food and pheromonal stimuli and to determine how the headspace emission patterns from grain differed under increasing densities. Densities of colonies for both species was altered (10-500 adults) on a fixed quantity of food (10 g of flour or whole wheat), then the behavioral response to common food and pheromonal cues was evaluated in a wind tunnel and release-recapture experiment, while volatiles were examined through gas chromatography coupled with mass spectrometry. Importantly, at least for T. castaneum, crowded conditions attenuate attraction to food-based stimuli, but not pheromonal stimuli. Crowding seemed to have no effect on R. dominica attraction to food and pheromonal stimuli in the wind tunnel, but exposure to high density cues did elicit 2.1-3.8-fold higher captures in traps. The relative composition and abundance of headspace volatiles emitted varied significantly with different densities of beetles and was also species-specific. Overall, our results have implications for expanding our understanding of the foraging ecology of two economically important pests.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Feromônios / Tribolium / Besouros / Comportamento Alimentar Limite: Animals País/Região como assunto: Caribe ingles / Dominica Idioma: En Revista: Sci Rep Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Feromônios / Tribolium / Besouros / Comportamento Alimentar Limite: Animals País/Região como assunto: Caribe ingles / Dominica Idioma: En Revista: Sci Rep Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Reino Unido