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dc.contributor.author
Benamú, Marco Antonio
dc.contributor.author
Sanchez, Norma Elba
dc.contributor.author
Viera, Carmen
dc.contributor.author
Gonzalez, Alda
dc.date.available
2019-06-13T20:55:20Z
dc.date.issued
2012-09
dc.identifier.citation
Benamú, Marco Antonio; Sanchez, Norma Elba; Viera, Carmen; Gonzalez, Alda; Comportamiento sexual de Alpaida veniliae (Araneae: Araneidae); Universidad de Costa Rica; Revista de Biología Tropical; 60; 3; 9-2012; 1-12
dc.identifier.issn
0034-7744
dc.identifier.uri
http://hdl.handle.net/11336/78287
dc.description.abstract
Studies in transgenic soybean cropsin Buenos Aires province, Argentina, revealed that Alpaida veniliae is one of the most abundant species in the guild of orb web spiders. This species is an effective natural enemy of insect pests affecting this crop. In the present study we carried out a descriptive and quantitative analysis of sexual behavior (courtship, mating and post-mating) of A. veniliae. The spiders were collected in transgenic soybean crops located in Chivilcoy (35º01' S - 60º06' W), Buenos Aires, Argentina, and reared under laboratory conditions. Based on observations of 20 couples (with virgin females), behavioral units of male and female in terms of postures and movements,including details on duration and frequency, were described at all stages of sexual activity (courtship, mating and post-mating). Courtship exhibited the greatest number and duration of behavioral units in both sexes. Male and female had a sequence of 16 and nine units, respectively, being the frequency of repetitions of the units significantly higher in the male. Mating was brief and males used a single palp to fill only one of the female spermathecae, after which the female became unreceptive. Mating had two behavioral units in the male and only one in the female. During post-mating males had three and females two behavioral units. The average duration of the whole sexual behavior was 541.90 ± 123.1 seconds for the male and 338.20 ± 74.1 seconds for the female. Alpaida veniliae females rarely accept a second mating with the same or another male (remating), indicating a strict monogamy. In 46% of observed mating, the female cannibalized the male after it. Females became unattractive after mating, since stop producing sex pheromones, causing a reduction of the male vibratory courtship. The high cost of courtship, including the risk of cannibalism, would reinforce the selectivity of males towards receptive virgin females.
dc.format
application/pdf
dc.language.iso
spa
dc.publisher
Universidad de Costa Rica
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Alpaida Veniliae
dc.subject
Comportamiento Sexual
dc.subject
Arañas
dc.subject
Araneidae
dc.subject.classification
Otras Ciencias Biológicas
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Comportamiento sexual de Alpaida veniliae (Araneae: Araneidae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-15T20:24:05Z
dc.journal.volume
60
dc.journal.number
3
dc.journal.pagination
1-12
dc.journal.pais
Costa Rica
dc.journal.ciudad
Turrialba
dc.description.fil
Fil: Benamú, Marco Antonio. Instituto de Investigaciones Biológicas Clemente Estable; Uruguay. Universidad de la República; Uruguay
dc.description.fil
Fil: Sanchez, Norma Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
dc.description.fil
Fil: Viera, Carmen. Instituto de Investigaciones Biológicas Clemente Estable; Uruguay. Universidad de la República; Uruguay
dc.description.fil
Fil: Gonzalez, Alda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
dc.journal.title
Revista de Biología Tropical
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://revistas.ucr.ac.cr/index.php/rbt/article/view/1777
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.15517/RBT.V60I3.1777
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