Trap-treat-release: horizontal transfer of fipronil in field colonies of black carpenter ants,Camponotus pennsylvanicus

2019 ◽  
Vol 75 (8) ◽  
pp. 2195-2201 ◽  
Author(s):  
Grzegorz Buczkowski
2021 ◽  
Author(s):  
Ganga Prasath Srinivasa Gopalakrishnan ◽  
Souvik Mandal ◽  
Fabio Giardina ◽  
Jordan Kennedy ◽  
Venkatesh N Murthy ◽  
...  

The solution of complex problems by the collective action of simple agents in both biologically evolved and synthetically engineered systems involves cooperative action. Understanding the resulting emergent solutions requires integrating across the organismal behaviors of many individuals. Here we investigate an ecologically relevant collective task in black carpenter ants Camponotus pennsylvanicus: escape from a soft, erodible confining corral. Individual ants show a transition from individual exploratory excavation at random locations to spatially localized collective exploitative excavation and escape from the corral. A minimal continuum theory that coarse-grains over individual actions and considers their integrated influence on the environment leads to the emergence of an effective phase space of behaviors in terms of excavation strength and cooperation intensity. To test the theory over the range of predicted behaviors, we used custom-built robots (RAnts) that respond to stimuli and show the emergence (and failure) of cooperative excavation and escape. Overall, our approach shows how the cooperative completion of tasks can arise from relatively simple rules that involve the interaction of simple agents with a dynamically changing environment that serves as an enabler and modulator of behavior.


Author(s):  
Francis Olawale Abulude ◽  
Samuel Dare Fagbayide

Biochemical compositions of black carpenter ants (Camponotus pennsylvanicus) were analyzed using standard methods. The proximate composition (%) were as follows: crude protein (22.50), crude fibre (1.46), carbohydrate by difference (30.86) and energy (35.4Kcal). The predominant mineral was potassium and nickel was the least. The antinutritional properties (mgkg-1) ranged as follows: Oxalate (1.35), phytate (62.79), and tannins (0.72). The results suggested that the ant may be a good source of nutrition.


2002 ◽  
Vol 90 (3) ◽  
pp. 1037-1050
Author(s):  
Dustin L. Sauer ◽  
Charles I. Abramson ◽  
Adam L. Lawson

An attempt was made to classically condition the mouthparts of harnessed worker ants ( Camponotus pennsylvanicus) in anticipation of feeding. Experiments were designed to investigate classical conditioning with one CS, discrimination between two CSs, and pseudoconditioning. Analysis indicated a small acquisition effect that could be accounted for by pseudoconditioning. The preparation can be used to study nonassociative learning and some instrumental conditioning situations.


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