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| Format: | Artículo científico |
| Sprache: | es |
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Universidad Estatal a Distancia
2013
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=515651978003 |
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Inhaltsangabe:
- Función de los pectenes en detección de presa en hembras del escorpión Centruroides margaritatus (Scorpiones: Buthidae): prueba experimental con grupo control. Jennifer Rivera Hidalgo Multidisciplinaria (Ciencias Naturales y Exactas) Buthidae pectines vibrations Scorpiones Costa Rica Function of pectines for prey detection in female Centruroides margaritatus scorpions (Scorpiones: Buthidae): an experimental test with control group. Scorpions have two mid-ventral organs called pectines, conformed by a row of sensitive tooth-like cylindrical projections. The functions of these appendages are varied, but those related with the detection of preys are controversial. Here, I investigate the prey-detection function of the pectines in the Central American scorpion Centruroides margaritatus . Experimental behavior tests were performed to compare prey detection skills of scorpions with or without alteration of the pectines using an experimental setup. Sixty mature females were assigned randomly to four groups of similar size. The groups include three treatments (application of paraffin, cutting of a pectine and cutting both pectines) and a control group (pectines intact). There was no significant difference in the time of reaction and prey detection between treatments and group control. The frequencies of the behaviors in each treatment differ with those of the control. The modification of the structure suggests a qualitative effect on the capacity to locate prey. The results are discussed in terms of the functionality of the pectines to detect prey. Other receptors (such as trichobothria, tarsal and basitarsal organs) located in pedipalps and legs of the scorpion C. margaritatus are possibly more important to perceive substrate-borne vibrations from the prey. 2013 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515651978003 es http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.2 Vol.4