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Personality affects defensive behaviour of Porcellioscaber (Isopoda, Oniscidea).

Tuf IH, Drábková L, Šipoš J - Zookeys (2015)

Bottom Line: Within each set of the three treatment, the strongest response was the third one, regardless of treatment type.Duration of reaction was affected by the size of the woodlouse, the smallest individuals feigning death for the shortest time.Despite body size, we found a significant individual pattern of endurance of TI among tested woodlice, which was stable across treatments as well as across time (5 repetitions during a 3 week period).

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Ecology and Environmental Sciences, Faculty of Science, Palacky University, Slechtitelu 27, CZ-77900 Olomouc, Czech Republic.

ABSTRACT
We evaluated individual behavioural patterns of isopods expressed as tonic immobility following some intrusive treatments. Common rough woodlice, Porcellioscaber, were kept individually in plastic boxes and tested for tonic immobility repeatedly. Reactivity, sensitivity (number of stimuli needed to respond), and endurance of tonic immobility (TI) according three types of treatments (touch, squeeze, drop) were evaluated. Touch was the weakest treatment and it was necessary to repeat it a number of times to obtain a response; while squeeze and drop induced TI more frequently. Nevertheless, duration of the response persisted for a longer time with the touch treatment. Within each set of the three treatment, the strongest response was the third one, regardless of treatment type. Duration of reaction was affected by the size of the woodlouse, the smallest individuals feigning death for the shortest time. Despite body size, we found a significant individual pattern of endurance of TI among tested woodlice, which was stable across treatments as well as across time (5 repetitions during a 3 week period). Porcellioscaber is one of the first species of terrestrial isopods with documented personality traits.

No MeSH data available.


Related in: MedlinePlus

Endurance of tonic immobility of Porcellioscaber of different body sizes induced by treatments. (*** p < 0.001; ** p < 0.01; * p ≤ 0.05)
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Figure 3: Endurance of tonic immobility of Porcellioscaber of different body sizes induced by treatments. (*** p < 0.001; ** p < 0.01; * p ≤ 0.05)

Mentions: Although there were no significant differences among body-size categories of Porcellioscaber in the probability of inducing TI (F1,148 = 0.73, p = 0.395), the longest TI duration was performed by medium body sized woodlice (F1,148 = 6.75, p < 0.05, Fig. 3).


Personality affects defensive behaviour of Porcellioscaber (Isopoda, Oniscidea).

Tuf IH, Drábková L, Šipoš J - Zookeys (2015)

Endurance of tonic immobility of Porcellioscaber of different body sizes induced by treatments. (*** p < 0.001; ** p < 0.01; * p ≤ 0.05)
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4525042&req=5

Figure 3: Endurance of tonic immobility of Porcellioscaber of different body sizes induced by treatments. (*** p < 0.001; ** p < 0.01; * p ≤ 0.05)
Mentions: Although there were no significant differences among body-size categories of Porcellioscaber in the probability of inducing TI (F1,148 = 0.73, p = 0.395), the longest TI duration was performed by medium body sized woodlice (F1,148 = 6.75, p < 0.05, Fig. 3).

Bottom Line: Within each set of the three treatment, the strongest response was the third one, regardless of treatment type.Duration of reaction was affected by the size of the woodlouse, the smallest individuals feigning death for the shortest time.Despite body size, we found a significant individual pattern of endurance of TI among tested woodlice, which was stable across treatments as well as across time (5 repetitions during a 3 week period).

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Ecology and Environmental Sciences, Faculty of Science, Palacky University, Slechtitelu 27, CZ-77900 Olomouc, Czech Republic.

ABSTRACT
We evaluated individual behavioural patterns of isopods expressed as tonic immobility following some intrusive treatments. Common rough woodlice, Porcellioscaber, were kept individually in plastic boxes and tested for tonic immobility repeatedly. Reactivity, sensitivity (number of stimuli needed to respond), and endurance of tonic immobility (TI) according three types of treatments (touch, squeeze, drop) were evaluated. Touch was the weakest treatment and it was necessary to repeat it a number of times to obtain a response; while squeeze and drop induced TI more frequently. Nevertheless, duration of the response persisted for a longer time with the touch treatment. Within each set of the three treatment, the strongest response was the third one, regardless of treatment type. Duration of reaction was affected by the size of the woodlouse, the smallest individuals feigning death for the shortest time. Despite body size, we found a significant individual pattern of endurance of TI among tested woodlice, which was stable across treatments as well as across time (5 repetitions during a 3 week period). Porcellioscaber is one of the first species of terrestrial isopods with documented personality traits.

No MeSH data available.


Related in: MedlinePlus