Do Agonistic Interactions Underlie the Segregation and Relative Abundances Between Two Loxosceles Species (Araneae: Sicariidae)?

dc.creatorFischer, ML
dc.creatorDiniz, S
dc.creatorVasconcellos-Neto, J
dc.date2014
dc.dateMAY
dc.date2014-07-30T14:49:22Z
dc.date2015-11-26T16:47:20Z
dc.date2014-07-30T14:49:22Z
dc.date2015-11-26T16:47:20Z
dc.date.accessioned2018-03-28T23:33:27Z
dc.date.available2018-03-28T23:33:27Z
dc.identifierJournal Of Medical Entomology. Entomological Soc Amer, v. 51, n. 3, n. 547, n. 559, 2014.
dc.identifier0022-2585
dc.identifier1938-2928
dc.identifierWOS:000335660900008
dc.identifier10.1603/ME13064
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62411
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62411
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1274824
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThe medically important spiders Loxosceles intermedia Mello-Leitao and Loxosceles laeta (Nicolet) are segregated in Curitiba, southern Brazil, where L. intermedia is more abundant and widespread than L. laeta. Because they share similar microhabitat preferences and wander in search of web sites, agonistic encounters are likely to occur. The purposes of this study were to describe agonistic interactions and interpret their consequences for the relative abundances and spatial segregation of L. intermedia and L. laeta. Experimental contests were performed between residents and intruders. Asymmetries between contestants included sex, age, species, weight, and residence status. Nine behavioral categories were defined. Through discriminant analyses, it was possible to differentiate spider sex, species, and residence based on their agonistic behaviors. Intruders, juveniles, and L. intermedia individuals were better characterized by exploratory behaviors, whereas L. laeta females were differentiated by aggressiveness. By performing a multiple logistic regression, with winning or defeat as a dependent variable of sex, age, species, size, weight, and residence, it was possible to say that residents and L. intermedia individuals had the highest winning odds in contests, where as juveniles had lower winning odds than adults. Advantages of the prior residence may help to explain the predominance of L. laeta in old colonization sites, whereas the higher winning odds of L. intermedia and less aggressive behavior toward conspecifies may lead to a successful establishment of dense populations in new sites. A better understanding of agonistic interactions as a mechanism of spacing, segregation, and species replacement among spiders may be helpful for control purposes.
dc.descriptiono TEXTO COMPLETO DESTE ARTIGO, ESTARÁ DISPONÍVEL À PARTIR DE AGOSTO DE 2015.
dc.description51
dc.description3
dc.description547
dc.description559
dc.descriptionCurso de Pos-Graduacao em Zoologia (Universidade Federal do Parana, UFPR)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCNPq [141319/94-4, 300539/94-0]
dc.descriptionFAPESP [99/05446-8]
dc.languageen
dc.publisherEntomological Soc Amer
dc.publisherAnnapolis
dc.publisherEUA
dc.relationJournal Of Medical Entomology
dc.relationJ. Med. Entomol.
dc.rightsembargo
dc.sourceWeb of Science
dc.subjectagonistic behavior
dc.subjectLoxosceles
dc.subjectprior residence
dc.subjectspecies segregation
dc.subjectIntermedia Mello-leitao
dc.subjectLaeta Araneae
dc.subjectRefugia Preferences
dc.subjectRecluse Spider
dc.subjectBrown Spiders
dc.subjectNicolet
dc.subjectBrazil
dc.subjectPrey
dc.subjectBehavior
dc.subjectBiology
dc.titleDo Agonistic Interactions Underlie the Segregation and Relative Abundances Between Two Loxosceles Species (Araneae: Sicariidae)?
dc.typeArtículos de revistas


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