scholarly journals Isolation of an Aggregation Pheromone from the Flour Beetles, Tribolium castaneum and T. confusum (Coleoptera : Tenebrionidae)

1979 ◽  
Vol 14 (2) ◽  
pp. 228-230 ◽  
Author(s):  
Takahisa SUZUKI ◽  
Ryozo SUGAWARA
Keyword(s):  
Tribolium Castaneum ◽  
Aggregation Pheromone ◽  
Flour Beetles ◽  
Coleoptera Tenebrionidae

The effect of resource limitation on competing populations of flour beetles, tribolium spp. (Coleoptera, Tenebrionidae)

1975 ◽  
Vol 65 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Michael Nathanson
Keyword(s):  
Tribolium Castaneum ◽  
Resource Limitation ◽  
Single Species ◽  
Mixed Species ◽  
Flour Beetles ◽  
Competing Populations ◽  
Coleoptera Tenebrionidae

AbstractSingle-species and mixed-species populations of Tribolium castaneum (Hbst.) and T. confusum Duv. were followed in two experiments. Food (flour) was renewed at various intervals between 30 days and 180 days or was not renewed at all. As the interval between food renewals lengthened, single-species populations of T. confusum became extinct later than populations of T. castaneum, the survivor in mixed-species populations changed from T. castaneum to T. confusum, and the mixed-species populations became extinct later than the single-species populations. When resource is limited, therefore, populations of the two species may persist longer if they compete than if they are husbanded as single species.

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