Aprendizaje y maduración en el comportamiento predador y construcción de tela según edad y sexo en la araña Physocyclus globosus (Pholcidae)
| dc.contributor.advisor | Eberhard Crabtree, William G | |
| dc.contributor.author | Escalante Meza, Ignacio | |
| dc.date.accessioned | 2017-05-10T15:02:49Z | |
| dc.date.accessioned | 2021-09-01T17:23:51Z | |
| dc.date.available | 2017-05-10T15:02:49Z | |
| dc.date.available | 2021-09-01T17:23:51Z | |
| dc.date.issued | 2012 | es_CR |
| dc.description | Tesis (maestría académica en biología)--Universidad de Costa Rica. Sistema de Estudios de Posgrado. 2012 | es_CR |
| dc.description.abstract | Spider predatory behavior is composed of man.y different tasks, and their sequences vary with the prey type in adults of sorne species. The variations and flexibility in predatory behavior of newly emerged, inexperienced spiderlings are scarcely known. I studied spiderlings of Physocyclus globosus (Pholcidae), which attacks walking and flying prey in its web. The web of this species is an irregular dome sheet web with an upper tangle in man-made structures. First, I investigated how behavioral units varied in prey attack in the first experience when attacking two prey types: fruitflies and ants. The sequence transitions between attack tasks and the time spent in certain behaviors (touching, wrapping, or handling) differed with prey type. Because ants were attacked further away than flies, and ants damaged spiderlings I considered that ants were a much more difficult prey to than flies. My findings suggest that the predatory behavior of spiders is flexible since their first experience. Leaming allows animals to improve behaviors such as predation with experience. However, in spiders learning has been studied mostly in adults, which mask the effect of previous experience. Newly emerged spiderlings of a few species tested increased their capture success with experience, but this could have resulted from either leaming or body maturation. Here, I tested whether leaming or maturation was associated with changes in predatory behavior by P. globosus spiderlings. I gave them one prey every three days, and varied the sequence of difficult (ants) and easy (fruitflies) prey. The support for learning was stronger than that for maturation. Leaming was evident when difficult prey preceded easy prey. The durations of six behaviors decreased when an easy prey followed difficult prey, but only two decreased in the opposite prey sequence, supporting the leaming hypothesis. A greater number of difficult prey previously attacked was associated with an improvement in predatory.. | es_CR |
| dc.description.procedence | UCR::Investigación::Sistema de Estudios de Posgrado::Ciencias Básicas::Maestría Académica en Biología | es_CR |
| dc.identifier.uri | https://repositorio.sibdi.ucr.ac.cr/handle/123456789/2853 | |
| dc.language.iso | spa | es_CR |
| dc.subject | ARAÑAS - CLASIFICACION | es_CR |
| dc.subject | ARAÑAS - CRECIMIENTO | es_CR |
| dc.subject | ARAÑAS - HABITOS Y CONDUCTA | es_CR |
| dc.subject | ARAÑAS - MORFOLOGIA | es_CR |
| dc.subject | TELARAAS | es_CR |
| dc.title | Aprendizaje y maduración en el comportamiento predador y construcción de tela según edad y sexo en la araña Physocyclus globosus (Pholcidae) | es_CR |
| dc.type | tesis de maestría | es_CR |
Archivos
Bloque original
1 - 1 de 1