Document Detail


Foraging ecology of aphidophagous predators against Aphis punicae Passerini.
MedLine Citation:
PMID:  18399467     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Foraging behaviour of three aphidophagous predators, viz., Cheilomenes sexmaculata (Fabricius), Scymnus sp. (Coleoptera: Coccinellidae) and Paragus serratus (Fabricius) (Diptera: Syrphidae) on prey Aphis punicae Passerini (Homoptera: Aphididae) was studied in the laboratory at Indian Institute of Horticultural Research, Bangalore (12 degrees 58' N; 77 degrees 35'E) during 2002-03 to understand the predation dynamics. The foraging studies of grubs of C. sexmaculata and Scymnus sp. on A. punicae revealed that the distance travelled to reach the food (aphids) was negatively correlated with the feeding time of prey (r = -0.434 and -0.743, respectively). The time taken for second encounter was positively correlated with feeding time in case of both C. sexmaculata (r = 0.715) and P.serratus (r = 0.641). The time taken for first encounter of prey by Scymnus sp. showed negative correlation with the feeding time (r = -0.9491) and positive correlation with the distance traveled by the predator to reach the food (r = 0.620). The foraging behavioural studies of syrphid, P. serratus on A. punicae showed that the time taken for first encounter of prey was positively correlated with both the feeding time (r = 0.467) and the distance travelled by the syrphid to reach the food (r = 0.485). The time taken for first encounter of prey also showed significant positive correlation with the search time of the prey (r = 0.384).
Authors:
Abraham Verghese; K Sreedevi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Communications in agricultural and applied biological sciences     Volume:  72     ISSN:  1379-1176     ISO Abbreviation:  Commun. Agric. Appl. Biol. Sci.     Publication Date:  2007  
Date Detail:
Created Date:  2008-04-10     Completed Date:  2008-06-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101200320     Medline TA:  Commun Agric Appl Biol Sci     Country:  Belgium    
Other Details:
Languages:  eng     Pagination:  391-7     Citation Subset:  IM    
Affiliation:
Indian Institute of Horticultural Research, Hessaraghatta Lake - 560 089 Bangalore, Karnataka, India.
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MeSH Terms
Descriptor/Qualifier:
Animals
Aphids / growth & development*,  physiology
Beetles / physiology*
Diptera / physiology*
Pest Control, Biological
Population Dynamics
Predatory Behavior*
Spatial Behavior*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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