Effect of an anti-gonadotropin-releasing factor vaccine on sexual and aggressive behaviour in male pigs during the finishing period under Australian field conditions

2015 ◽  
Vol 93 (4) ◽  
pp. 121-123 ◽  
Author(s):  
B Karaconji ◽  
B Lloyd ◽  
N Campbell ◽  
D Meaney ◽  
T Ahern
Keyword(s):  
Aggressive Behaviour ◽  
Field Conditions ◽  
Gonadotropin Releasing Factor

Nest-mate recognition and the effect of distance from the nest on the aggressive behaviour of Camponotus chilensis (Hymenoptera: Formicidae)

Behaviour ◽  
2006 ◽  
Vol 143 (7) ◽  
pp. 811-824 ◽  
Author(s):  
Nelson Velásquez ◽  
María Gómez ◽  
Jorge González ◽  
Rodrigo A. Vásquez
Keyword(s):  
Spatial Variation ◽  
Natural Population ◽  
Information Acquisition ◽  
Aggressive Behaviour ◽  
Mate Recognition ◽  
Field Conditions ◽  
Territorial Behaviour ◽  
Central Chile ◽  
Nest Mate ◽  
Nest Mate Recognition

AbstractNest-mate recognition and territorial behaviour in ants are widely studied phenomena. However, few studies have analysed, under field conditions, how nest-mate recognition varies with distance from the resident's colony. In a natural population of Camponotus chilensis in central Chile, we studied nest-mate recognition and spatial variation in aggressive behaviour. C. chilensis individuals were able to discriminate nest-mates from intruders, showing no aggression toward nest companions, while aggressiveness toward allo-colonial con-specifics decreased significantly with distance. Further, the overall number of interactions and the aggressiveness of the resident ants were significantly greater at 25 cm from their colony than at further distances. Given that antennation behaviour is regularly present at all distances from the nest, it seems to entail information acquisition. Biting and intruder-dragging, the most conspicuous aggressive displays, were mainly observed at distances close to the resident colony. Other behaviours such as threatening with open mandibles, ventral bending of the gaster, and backward-movement, were observed at all distances, and they seem to represent the first signs of intruder rejection.

The influence of burnout in aggressive behaviour among Portuguese police officers

2012 ◽  
Author(s):  
Cristina Queiros ◽  
Antonio Leitao da Silva ◽  
Isabel Teixeira
Keyword(s):  
Police Officers ◽  
Aggressive Behaviour

Ichthyotoxicity of the microalga Pseudochattonella farcimen under laboratory and field conditions in Danish waters

2015 ◽  
Vol 116 (3) ◽  
pp. 165-172 ◽  
Author(s):  
NG Andersen ◽  
PJ Hansen ◽  
K Engell-Sørensen ◽  
LH Nørremark ◽  
P Andersen ◽  
...  
Keyword(s):  
Field Conditions
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