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Previous issue date: 2008-02-15 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The knowledge of Anastrepha zenildae behavioral aspects combined with the biology of Tephritidae may contribute to monitoring and control programs of this fruit fly that is considered as economically important to the Rio Grande do Norte state. In order to characterize the daily activity profile of this species, we studied the behaviors of resting, locomotion, feeding, cleaning, courtship, copulation and
oviposition of animals submitted to an artificial 12:12h light-dark cycle (750:1lux) with controlled temperature (26?2 ?C). The observations were made with groups of 16 males and 16 females during 3 consecutive days each generation from parental to F5. Resting, locomotion, feeding and cleaning data were recorded as frequency and time of occurrence by scanning technique in 15 minutes windows per hour, with a record each minute. Courtship, copulation and oviposition were recorded as frequency, time of occurrence and duration by al occurrences technique. Resting was the most frequent behavior with males resting more than females. Locomotion was more evident in the first half of the ligh phase with higher values in females. Cleaning and feeding behaviors were more frequent in the second half of the light phase for both sexes with females eating more frequently than males. During the courtship, males were grouped in lek formations showing wings vibration and pheromone liberation. Courtship occurred
more frequently 4 to 7 h after lights on (81,9%) with copulations being more frequent 6 h after lights on with a mean duration of 58,1?40,4 min. Copulation attempts were observed in males inside and outside the lek with aggressive behavior being observed only between males in the lek. Oviposition behavior was similar to that described for other species of the genus with a peak of this activity 2-3 h after the lights on, mean duration of 43, 7?34, 8 sec and 2 to 5 eggs by event. According to the results, sexual behavior of A. zenildae is temporally different of other sympatric species of the genus, being favorable to the
reproductive isolation as well as the use of resources as oviposition substrate. / O estudo dos aspectos comportamentais de Anastrepha zenildae associados aos aspectos da biologia geral dos tefrit?deos, pode favorecer os programas de monitoramento e controle dessa mosca-da-fruta de import?ncia econ?mica e bastante presente no estado do Rio Grande do Norte. Para caracterizar o perfil da atividade di?ria de A. zenildae foram estudados os comportamentos de descanso, locomo??o, alimenta??o, limpeza, corte, c?pula e oviposi??o de animais mantidos em ciclo claro/escuro 12:12h (750:<1 lux), com temperatura controlada (26?2 ?C). As observa??es foram feitas em grupos de 16 machos e 16 f?meas por gera??o
(parental a F5) durante tr?s dias consecutivos para cada gera??o, sendo registrado freq??ncia e hor?rio de ocorr?ncia utilizando t?cnica varredura, em janelas de 15 minutos a cada hora com registro a cada minuto. Os comportamentos de corte, c?pula e oviposi??o foram observados pela t?cnica de todas as ocorr?ncias , registrando-se freq??ncia, hor?rio e dura??o. O descanso foi mais freq?ente e os machos descansaram mais que as f?meas. A locomo??o foi mais evidente na primeira metade da fase de claro e as f?meas se locomoveram mais que os
machos. Os comportamentos de limpeza e alimenta??o foram mais freq?entes na segunda metade da fase de claro em ambos os sexos, com as f?meas alimentando-se mais que os machos. Os machos agruparam-se em leks com comportamento de
corte caracterizado pela vibra??o de asa e libera??o de ferom?nio. A corte ocorreu com maior freq??ncia 4 a 7 horas ap?s o acender das luzes (81,9%) e a c?pula 6
horas ap?s acender das luzes. O tempo m?dio de c?pula foi de 58,1?40,4 min, com tentativas de c?pula dentro e fora do lek e comportamento agressivo entre os machos no lek. O comportamento de oviposi??o foi similar ao descrito para outras
esp?cies do g?nero, com pico entre 2 e 3 horas ap?s o acender das luzes e dura??o m?dia de 43,7?34,8 segundos e tamanho da postura variando de 2 a 5 ovos. De acordo com resultados, o comportamento sexual em A. zenildae difere
temporalmente de outras esp?cies simp?tricas do g?nero, favorecendo o isolamento reprodutivo, bem como a utiliza??o de recursos como substrato para oviposi??o.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/17198 |
| Date | 15 February 2008 |
| Creators | Almeida, L?cia Maria de |
| Contributors | CPF:10845054449, http://lattes.cnpq.br/1846287904254246, Paranhos, Beatriz Aguiar Jord?o, CPF:10584728875, http://lattes.cnpq.br/6606136052148527, Nascimento, Ant?nio Souza do, CPF:07152710597, http://lattes.cnpq.br/4338772674638510, Azevedo, Carolina Virg?nia Macedo de, CPF:61903680425, http://lattes.cnpq.br/2667344626234863, Souza, Jo?o Maria Gomes Alencar de, CPF:15563570444, http://lattes.cnpq.br/1062581153507907, Menezes, Alexandre Augusto de Lara |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Psicobiologia, UFRN, BR, Estudos de Comportamento; Psicologia Fisiol?gica |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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