| dc.rights.license | http://creativecommons.org/licenses/by-nc-sa/3.0/ve/ | |
| dc.contributor.author | Salinas, Pedro José | |
| dc.date.accessioned | 2011-05-23T19:46:34Z | |
| dc.date.available | 2011-05-23T19:46:34Z | |
| dc.date.issued | 2011-05-23T19:46:34Z | |
| dc.identifier.uri | http://www.saber.ula.ve/handle/123456789/33155 | |
| dc.description | Turrialba: Num. 4, Vol. 42, Trimestre Octubre-Diciembre 1992 | es_VE |
| dc.description.abstract | Se diseñaron experimentos para observar y resgistrar el
comportamiento de las larvas de la polilla del rcpotto, Plutella
xylostella (L) (Lepidoptera:Plutellidae) bajo inanición,después
de haber sido bien alimentadas. Cuando las larvas de la polilla
del repollo son sometidas a inanición,les ocurren algunos cambios fisiologicos y de comportamiento.
Los cambios de comportamiento pueden ser drasticos. Las larvas se vuelven agresivas e
irritables,perturbándose por cualquier movimiento cercano. La
larva individual reacciona normalmente a la perturbación
moviéndose y alejándose, y si otra larva le toca , ambas se alejan
en diferentes direcciones. En algunos casos extremos de inanición,
las larvas adquirirían tendencias canibalísticas; y si una
larva debilitada se encuentra con otra mas fuerte,
el comportamiento cambia y la más fuerte se alimenta de la débil . En el
experimento, a pesar de los movimientos fuertes de la larva
"atacada", la "agresora" continúo mordiéndola. La "atacada"
no dejó de forcejear en un esfuerzo inútil por escapar de las
mordeduras continuas de la "agresora", Y cada vez que la otra
forcejeaba la "agresora" se mostraba más agresiva y atacaba
muy rápido con una serie de mordeduras en cualquier parte del
abdomen. Al día siguiente no quedaron restos de la larva "atacada",
ni siquiera la cápsula craneal. | es_VE |
| dc.language.iso | es | es_VE |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.title | Studies on the Ecology and Behaviour of P. xylostella L. Cannibalism Induced by Starvation | es_VE |
| dc.type | info:eu-repo/semantics/article | |
| dc.description.abstract1 | Experiments were designed in order to observe and record
the behavior of the larvae of the diamondback moth, Plutella
xylostella L. (Lepidoptera: Plutellidae) under starvation by
depriving them of food, after being previously well-fed . When
the larvae of the diamondback moth are subjected to starvation,
some physiological and behavioral changes occur. The changes
in behavior may be drastic. The larvae become aggressive and
irritable, disturbed by any nearby movement. The Individual
larva normally reacts to the disturbance by moving away and, if
another touches it, both larvae crawlaway in different directions.
In some extreme cases of starvation, the larvae may acquire cannibalistic
tendencies; if a weakened larva is found by a
stronger one, the normal biling associated with their encounter
encourages the stronger larvae to feed on the weak one. Despite
the vigoruus movement of the attacked larva, the aggressor
continues to bite. The attacked larva docs not cease to struggled,
in an unsuccessful effort to escape from the continuous biting of
the aggressor larva, and every time the attacked larva struggled,
the aggressor became more aggresive and made very rapid
attacks in the form of a series of bites all over the abdomen, biting
any part of the abdomen that it grasped. Nextmorning, there was
nothing left of the attacked larva,not even the head capsule. This
cannibalistic behavior has apparently not being reported before
in the diamondback moth,and is very rare in Lepidoptera. | es_VE |
| dc.description.email | psalinas@ula.ve | es_VE |
| dc.publisher.pais | Venezuela | es_VE |
| dc.subject.thematiccategory | Medio Ambiente | es_VE |
| dc.subject.tipo | Artículos | es_VE |
| dc.type.media | Texto | es_VE |
