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Parisi, D.R.; Soria, S.A.; Josens, R. |
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Title |
Faster-is-slower effect in escaping ants revisited: Ants do not behave like humans |
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Journal Article |
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Year |
2015 |
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Safety Science |
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72 |
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274-282 |
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Keywords |
Emergency; Evacuation; Egress; Ant egress; Crowd egress; Faster is slower; Pedestrian evacuation; Pedestrian dynamics |
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Abstract |
In this work we studied the trajectories, velocities and densities of ants when egressing under controlled levels of stress produced by a chemical repellent at different concentrations. We found that, unlike other animals escaping under life-and-death conditions and pedestrian simulations, ants do not produce a higher density zone near the exit door. Instead, ants are uniformly distributed over the available space allowing for efficient evacuations. Consequently, the faster-is-slower effect observed in ants (Soria et al., 2012) is clearly of a different nature to that predicted by de social force model. In the case of ants, the minimum evacuation time is correlated with the lower probability of taking backward steps. Thus, as biological model ants have important differences that make their use inadvisable for the design of human facilities. |
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0925-7535 |
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Equine Behaviour @ team @ |
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6161 |
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Author |
Grönemann, K. |
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Title |
Konfliktfeld Pferd und Wolf – Eine Untersuchung zu Einstellungen, Erwartungen und Befürchtungen von Pferdehaltern und Reitsportlern in Niedersachsen |
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2015 |
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Master's thesis |
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University Hildesheim |
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Hildesheim |
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Equine Behaviour @ team @ |
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6440 |
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Author |
Stecken, Paul |
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Title |
Bemerkungen und Zusammenhänge |
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2015 |
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FNverlag der Deutschen Reiterlichen Vereinigung GmbH |
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wARENDORF |
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978-3-88542-889-3 |
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Equine Behaviour @ team @ |
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6511 |
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Lee, P.C.; de Antonio, C. A. |
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Necessity, unpredictability and opportunity: An exploration of ecological and social drivers of behavioral innovation. |
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2015 |
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Animal Creativity and Innovation |
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317- 333 |
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Elsevier |
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Cambridge |
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Equine Behaviour @ team @ |
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6535 |
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Author |
Ahrendt, L.P.; Labouriau, R.; Malmkvist, J.; Nicol, C.J.; Christensen, J.W. |
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Title |
Development of a standard test to assess negative reinforcement learning in horses |
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Journal Article |
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Year |
2015 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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169 |
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38-42 |
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Algometry; Horse behaviour; Learning performance; Operant conditioning; Pressure-release; Horse training |
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Abstract |
Most horses are trained by negative reinforcement. Currently, however, no standardised test for evaluating horses' negative reinforcement learning ability is available. The aim of this study was to develop an objective test to investigate negative reinforcement learning in horses. Twenty-four Icelandic horses (3 years old) were included in this study. The horses were tested in a pressure-release task on three separate days with 10, 7 and 5 trials on each side, respectively. Each trial consisted of pressure being applied on the hindquarter with an algometer. The force of the pressure was increased until the horse moved laterally away from the point of pressure. There was a significant decrease in required force over trials on the first test day (P<0.001), but not the second and third day. The intercepts on days 2 and 3 differed significantly from day 1 (P<0.001), but not each other. Significantly stronger force was required on the right side compared to the left (P<0.001), but there was no difference between first and second side tested (P=0.56). Individual performance was evaluated by median-force and the change in force over trials on the first test day. These two measures may explain different characteristics of negative reinforcement learning. In conclusion, this study presents a novel, standardised test for evaluating negative reinforcement learning ability in horses. |
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0168-1591 |
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Equine Behaviour @ team @ |
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6650 |
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Author |
Grönemann, C. |
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Title |
Konfliktfeld Pferd und Wolf – Eine Untersuchung zu Einstellungen, Erwartungen und Befürchtungen von Pferdehaltern und Reitsportlern in Niedersachsen |
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Year |
2015 |
Publication |
master thesis |
Abbreviated Journal |
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Master's thesis |
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Universität Hildesheim |
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Hildesheim |
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Equine Behaviour @ team @ |
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6683 |
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