Alternative predatory tactics in a juvenile jumping spider

Bartos, Maciej

doi:10.1636/cst107-134.1

Cited by 21 publications

(31 citation statements)

References 21 publications

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“…There is a very close similarity between the order and presence of particular behavioural units in predatory encounters of Y. arenarius with flies and with other prey characterized by high ability to escape (Homoptera, Orthoptera), which this spider was tested with (BARTOS 2002(BARTOS , 2007(BARTOS , 2008. All behavioural elements observed in this study were also present in experiments with Homoptera and Orthoptera.…”

Section: Discussionsupporting

confidence: 66%

“…arenarius with other prey (Homoptera, Orthoptera, Thysanoptera and larvae of Lepidoptera) have been described earlier with particular attention on the spider's predatory versatility (BARTOS 2000(BARTOS , 2002(BARTOS , 2007(BARTOS , 2008.…”

Section: Introductionmentioning

confidence: 99%

“…Y. arenarius is a cryptically-coloured, sit-and-wait predator feeding on a wide range of insects and spiders that inhabit open sand or are blown by the wind onto the dune surface from neighbouring habitats (BARTOS 2004). It was found that the spiders use a conditional hunting strategy manifested in prey-specific jumping distance, speed of approach, direction of approach and other prey-specific behaviours (BARTOS 2002(BARTOS , 2007(BARTOS , 2008). …”

Section: Introductionmentioning

confidence: 99%

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Predatory Encounters of Yllenus Arenarius (Araneae, Salticidae) with Flies (Diptera)

Bartos¹

2010

biologica

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Predatory behaviour of Yllenus arenarius hunting flies (Diptera) was studied. The general spider’s approach and capture was typical for salticids hunting prey that has high ability to escape. Two modes of approach in close proximity of prey were observed. One was typical for the majority of predatory encounters where the spider’s velocity was significantly reduced with decreasing distance to prey. Stalk and movement masking were typical for this type of approach. Second mode occurred sporadically and was characterized by a high spider’s velocity that was not reduced in the vicinity of the prey.

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Section: Discussionsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Predatory Encounters of Yllenus Arenarius (Araneae, Salticidae) with Flies (Diptera)

Bartos¹

2010

biologica

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“…This alternative way of approach, which obviously increases the risk of a prey's escape, may also have some advantages (Bear & Hasson 1997). Prey with high risk of escape is approached slowly (“stalk” and “movement masking”) while prey with low risk of escape is approached without such preventative measures (Bartos 2008). We suggest that the cryptic or quick predator approach strategy when the wind is blowing is adaptive for reducing the risk of discovery and escape by prey.…”

Section: Discussionmentioning

confidence: 99%

Behavioral response of mantid Tenodera aridifolia (Mantodea: Mantidae) to windy conditions as a cryptic approach strategy for approaching prey

Yano

2012

Entomological Science

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Crypsis can be either defensive or aggressive in function, and the first evidence that crypsis reduces the probability of being detected by a predator was collected almost a century ago. Crypsis in mantids may reduce the probability that a mantid will be detected by its prey, but no experiments have been carried out to test this idea. We tested the hypothesis that the approach strategy of the mantid Tenodera aridifolia (Stoll) toward prey when the wind is blowing is adaptive. Significantly less time elapsed between the discovery of the prey by the predator and capture action under windy conditions than under windless conditions. Approach behaviors (walking and body swaying) were observed more frequently under windy than under windless conditions. When the wind stopped, mantids became still, and they changed their behavior in response to alternately changing wind conditions. Moreover, the discovery rate of the predator mantids by conspecific prey mantids was significantly lower on swaying leaves than on fixed leaves. The capturing rate of the prey by the mantid was significantly higher under windy conditions than under windless conditions. We suggest that the strategy of approaching prey quickly when the wind blowing is adaptive for reducing the risk of discovery and escape by the prey.

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“…The caterpillars of P. farinalis were not reported in the spider's natural diet, but the spider was found to capture the caterpillars of other lepidopteran species (Bartos 2004(Bartos , 2011. The spiders were observed to use preyspecific predatory behavior against leafhoppers and caterpillars (Bartos 2007(Bartos , 2008. Leafhoppers were collected in the field by sweep-netting dune grass on the day of the experiment or the day before and they were held individually in plastic tubes.…”

Section: Methodsmentioning

confidence: 99%

The influence of camouflage and prey type on predatory decisions of jumping spider

Bartos

2013

biologica

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Decisions made by predators during predatory encounters are often based on multiple factors that may influence the outcome of the encounters. For stalking predators their visibility to the prey and the ability of their prey to escape may be important factors influencing predatory success. Hence they are likely to adapt their predatory behavior when approaching prey on backgrounds with different camouflaging properties, but only if the prey is able to escape. To test whether jumping spiders flexibly adapt their predatory behavior to camouflaging properties of the background and prey type, the behavior of Yllenus arenarius (Araneae, Salticide), a cryptically colored jumping spider hunting leafhoppers (high escape potential) and caterpillars (low escape potential) on two types of background: matching and non-matching for the spiders was analyzed. Background color had a significant effect on the spiders’ jumping distance and their predatory success, but only if the prey had a high escape potential. No differences occurred between backgrounds if the prey could not escape. On camouflaging background the spiders attacked leafhoppers from a shorter distance and had a higher success than on non-camouflaging background.

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Alternative predatory tactics in a juvenile jumping spider

Cited by 21 publications

References 21 publications

Predatory Encounters of Yllenus Arenarius (Araneae, Salticidae) with Flies (Diptera)

Predatory Encounters of Yllenus Arenarius (Araneae, Salticidae) with Flies (Diptera)

Behavioral response of mantid Tenodera aridifolia (Mantodea: Mantidae) to windy conditions as a cryptic approach strategy for approaching prey

The influence of camouflage and prey type on predatory decisions of jumping spider

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