Choice of Prey Body Parts for Effective Feeding by Predaceous Diving Beetle Larvae, Dytiscus sharpi sharpi (Wehncke) (Coleoptera: Dytiscidae)

Autor:	Toshio Inoda, Shinji Kamimura
Rok vydání:	2014
Předmět:	Larva biology Ecology Zoology Dytiscidae Rana ornativentris biology.organism_classification Tadpole Predation Optimal foraging theory Dytiscus Animal ecology Insect Science Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Insect Behavior. 28:26-36
ISSN:	1572-8889 0892-7553
DOI:	10.1007/s10905-014-9475-z
Popis:	Diving beetle larvae use their mandibles in two ways: capturing prey and sucking their body fluid. Catching and consuming the prey’s most nutritious body part leads to the highest feeding efficiency. To test this, Dytiscus sharpi sharpi larvae were given tadpoles (Rana ornativentris) as food and their feeding behaviors were observed. Dytiscus larvae preferred to catch tadpoles by the abdomens rather than by other parts. Tadpoles soon became immobilized and in most cases the beetle larvae started eating abdomens first. Beetle larvae tried to change biting site to tadpole’s abdomen when the tadpole was initially caught by the head or tail. More food was absorbed from the abdomen than the head or tail suggesting that the feeding behavior of beetle larva is optimized to obtain nutrition efficiently from the tadpole abdomen.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::00ef13a7e7e13d0244caae87c7974bea https://doi.org/10.1007/s10905-014-9475-z Zobrazit plný text záznamu Full text from SpringerLink