Prey capture behavior in three Neotropical armored harvestmen (Arachnida, Opiliones)

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dc.citation.issue2
dc.citation.volume34
dc.contributor.authorCosta, Thaiany M.
dc.contributor.authorSilva, Norton Felipe dos Santos [UNIFESP]
dc.contributor.authorWillemart, Rodrigo Hirata [UNIFESP]
dc.coverageTokyo
dc.date.accessioned2020-07-22T13:23:02Z
dc.date.available2020-07-22T13:23:02Z
dc.date.issued2016
dc.description.abstractAcquiring food requires success in all the distinct phases of foraging, among which are detecting, capturing and handling prey. We have looked at prey detection, capturing and handling in three species of armored harvestmen differing in leg length and pedipalp morphology: Discocyrtus pectinifemur, Heteromitobates discolor and Gryne perlata. We recorded males and females in captivity capturing 0.5- to 0.7-mm-long immature crickets without legs III and provide the first detailed description of prey capture in harvestmen of the suborder Laniatores. We have shown that these three species can detect live prey without touching it but only at close range (< 1 cm). The success at the strike phase was: 27.2 % for D. pectinifemur, 50 % for G. perlata and 72.7 % for H. discolor. Combining the probability of detection without contact with that of successful capturing of the two-legged cricket, the success rate of G. perlata, D. pectinifemur and H. discolor were, respectively, 2, 21 and 32 %. Only one cricket escaped from within the pedipalps of the harvestmen (G. perlata, smooth pedipalps). The long-legged H. discolor, which forage in open areas, had a higher success and, after detection, took less time to attack crickets in open areas. Compared to other arachnids, prey detection happens at close range and capture success in Laniatores is low. However, omnivory probably minimizes these limitations in capturing live prey.en
dc.description.affiliationUniv Sao Paulo, Escola Artes Ciencias & Humanidades, Lab Ecol Sensorial & Comportamento Artropodes, Rua Arlindo Bettio 1000, BR-03828000 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Programa Posgrad Ecol & Evolucao, Campus Diadema,Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Biociencias, Programa Posgrad (ICAFZool, Rua Matao 321,Travessa 14, BR-05508090 Sao Paulo, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Programa Posgrad Ecol & Evolucao, Campus Diadema,Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFAPESP
dc.description.sponsorshipCNPq
dc.description.sponsorshipCAPES
dc.format.extent183-190
dc.identifierhttp://dx.doi.org/10.1007/s10164-016-0464-x
dc.identifier.citationJournal Of Ethology. Tokyo, v. 34, n. 2, p. 183-190, 2016.
dc.identifier.doi10.1007/s10164-016-0464-x
dc.identifier.issn0289-0771
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55999
dc.identifier.wosWOS:000374170400011
dc.language.isoeng
dc.publisherSpringer Japan Kk
dc.relation.ispartofJournal Of Ethology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectDetectionen
dc.subjectForagingen
dc.subjectHandlingen
dc.subjectPrey captureen
dc.subjectGonyleptidaeen
dc.subjectCosmetidaeen
dc.titlePrey capture behavior in three Neotropical armored harvestmen (Arachnida, Opiliones)en
dc.typeinfo:eu-repo/semantics/article
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