Cooperative prey capture by young subsocial spiders

Kim, Kil Won; Krafft, Bertrand; Choe, Jae Chun

doi:10.1007/s00265-005-0013-z

Cited by 41 publications

(38 citation statements)

References 29 publications

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“…Such a difference in costs and benefits with the prey size and group size is consistent with results from other group hunting predators, including carnivorous animals, spiders, and insects (Caraco and Wolf 1975;Inoue 1985;Kim et al 2005). For example, in the African wild dog Lycaon pictus, predation success, prey mass, and the probability of multiple kills increased with the number of adults (Creel and Creel 1995).…”

Section: Discussionsupporting

confidence: 82%

“…Group predation occurs in a wide range of taxa, including insects (e.g., Chadab and Rettenmeyer 1975;Dejean et al 2013), social spiders (e.g., Burgess 1976: Kim et al 2005, fish (e.g., Bshary 2006), birds (e.g., Bednarz 1988), and mammals (e.g., Creel and Creel 1995). In particular, social carnivores have been the focus of much research on group hunting behavior (reviewed by Bailey et al 2013;Krause and Ruxton 2002).…”

Section: Introductionmentioning

confidence: 99%

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Prey size affects the costs and benefits of group predation in nymphs of the predatory stink bug Andrallus spinidens (Heteroptera: Pentatomidae)

Hyodo

Himuro

Fujisaki³

2014

J Ethol

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Group predation promotes foraging efficiency because it increases the size of prey that can be killed and improves hunting success compared to solitary predation. However, group predation may increase competition among group members during feeding. Earlier studies have focused on the advantages of group predation, but little is known about the costs and benefits of group predation for individual members of the group. Here, we show that the costs and benefits of group predation for individuals of the predatory stink bug Andrallus spinidens vary with prey size in laboratory experiments. We found that when A. spinidens fed on small prey, group predation did not significantly increase foraging efficiency but did increase competition for food among group members. In contrast, when prey was large, group predation promoted foraging efficiency, and competition over food was not detected. Our results suggest that group predation by A. spinidens nymphs is advantageous for individual members because it enables each member to hunt larger prey that could not be hunted alone. However, when group size was large or prey size was small, group predation increased competition among group members.

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Section: Discussionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Prey size affects the costs and benefits of group predation in nymphs of the predatory stink bug Andrallus spinidens (Heteroptera: Pentatomidae)

Hyodo

Himuro

Fujisaki³

2014

J Ethol

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“…Our results showed that groups of P. nidificator were able to subdue prey almost four times larger than each individual. Similar patterns of cooperative hunting, including prey sharing, have been registered in social spiders (reviewed in DAndrea, 1987;AvilØs, 1997;Kim et al, 2005a, b), and the advantages of this type of behavior have been widely discussed for social vertebrates (e.g. Giraldeau and Caraco, 2000).…”

Section: Discussionmentioning

confidence: 99%

“…Within a group the food intake per individual is smaller than that of a solitary predator; however, cooperative hunting can increase not only the chance to obtain a larger prey, but simply the chance of obtaining any prey (Schneider, 1996;Ulbrich and Henschel, 1999;Kim, 2000;Amir et al, 2000, Kim et al, 2005. In subsocial spiders cooperative hunting not only enables the group members to hunt larger prey, but they do it more quickly and reduce the chances of cannibalism and aggression among siblings (Kim et al, 2005a;Whitehouse and Lubin, 2005). In P. nidificator cooperative hunting abets mutual tolerance, group cohesion and maternal care, and matriphagy appears as an important step in the evolution of "non-territorial permanent social behavior" (Tizo-Pedroso and DelClaro, 2005).…”

Section: Discussionmentioning

confidence: 99%

Cooperation in the neotropical pseudoscorpion, Paratemnoides nidificator (Balzan, 1888): feeding and dispersal behavior

Tizo-Pedroso

Del‐Claro

2007

Insect. Soc.

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Social behavior is rare among arachnids, and "permanent-sociality" is a strategy documented only in a few spider species. Here we describe the feeding and dispersal behavior of Paratemnoides nidificator, a Neotropical pseudoscorpion presenting "non-territorial permanent-sociality". Field and laboratory observations (100 hours and 200 sessions over four years) and manipulative experiments revealed that P. nidificator is a generalist predator that lives in rough bark of trees, in groups of 2 to 175 individuals (42.62 AE 28.27; N=35 colonies; solitary individuals were never found), including reproductive adults and nymphs. Individuals in groups cooperatively capture prey four times larger than solitary individuals. Adult hunters share food with siblings. Reproduction in natural conditions occurs during the hot/wet season, when food availability is high. Prey diversity and abundance seem to be the main factor limiting reproduction in this species. Phoresy (attachment to a transporter animal) is the basic mode of dispersion in P. nidificator. Grouped individuals use large animals as vectors for dispersal, and once established they use the vector as the first food item of the new colony. However, they can also disperse by colony fission, newly documented herein for this taxon. The elaborate, cooperative behavior in P. nidificator is unique among pseudoscorpions and represents an excellent model for studies on the evolution of sociality in invertebrates.

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“…Mechanisms of foraging facilitation also vary. They include an increased ability of larger groups to (i) locate food, (ii) capture (more agile) and overrule (larger or more dangerous) prey, (iii) increase hunting success and reduce energy expenditure during pursuit and vanquishing, (iv) protect any of its members more effectively from predation, and thus devote more time to foraging, (v) prevent kleptoparasites from stealing already subdued prey, (vi) gain better access to food defended by other species, or (vii) break up potential protective groupings of their prey (Marsh and Ribbink, 1986;Bednarz, 1988;Cosner et al, 1999;Courchamp and Macdonald, 2001;Krause and Ruxton, 2002;Gardner, 2004;Kim et al, 2005aKim et al, , 2005b. For example, tropical insectivorous birds move in a group to flush out insects, and thereby facilitate individuals' feeding (Clayton, 1978), some species of tuna forage in a linear school and aggregate when a school of prey is encountered (Partridge et al, 1983), and aggregations of herbivorous insects can overwhelm induced chemical defenses in host plants (Berryman et al, 1985;Denno and Benrey, 1997).…”

Section: Introductionmentioning

confidence: 99%

Impacts of Foraging Facilitation Among Predators on Predator-prey Dynamics

Berec

2009

Bull. Math. Biol.

135

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Whereas impacts of predator interference on predator-prey dynamics have received considerable attention, the "inverse" process-foraging facilitation among predators-have not been explored yet. Here we show, via mathematical models, that impacts of foraging facilitation on predator-prey dynamics depend on the way this process is modeled. In particular, foraging facilitation destabilizes predator-prey dynamics when it affects the encounter rate between predators and prey. By contrast, it might have a stabilizing effect if the predator handling time of prey is affected. Foraging facilitation is an Allee effect mechanism among predators and we show that for many parameters, it gives rise to a demographic Allee effect or a critical predator density in need to be crossed for predators to persist. We explore also the effects of predator interference, to make the picture "symmetric" and complete. Predator interference is shown to stabilize predator-prey dynamics once its strength is not too high, and thus corroborates results of others. On the other hand, there is a wide range of model parameters for which predator interference gives rise to three co-occurring co-existence equilibria. Such a multi-equilibrial regime is rather robust as we observe it for all the functional response types we explore. This is a previously unreported phenomenon which we show cannot occur for the Beddington-DeAngelis functional response. An interesting topic for future research thus might be to seek for general conditions on predator functional responses that would produce multiple co-existence equilibria in a predator-prey model.

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Cooperative prey capture by young subsocial spiders

Cited by 41 publications

References 29 publications

Prey size affects the costs and benefits of group predation in nymphs of the predatory stink bug Andrallus spinidens (Heteroptera: Pentatomidae)

Prey size affects the costs and benefits of group predation in nymphs of the predatory stink bug Andrallus spinidens (Heteroptera: Pentatomidae)

Cooperation in the neotropical pseudoscorpion, Paratemnoides nidificator (Balzan, 1888): feeding and dispersal behavior

Impacts of Foraging Facilitation Among Predators on Predator-prey Dynamics

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