Trophic roles of scavenger beetles in relation to decomposition stages and seasons

NOELIA I. ZANETTI; ELENA C. VISCIARELLI; NÉSTOR D. CENTENO

REVISTA BRASILEIRA DE ENTOMOLOGIA

SOC BRASILEIRA ENTOMOLOGIA

Lugar: Curitiba; Año: 2015 vol. 59 p. 132 - 137

0085-5626

Carcasses represent a trophic and reproductive resource or shelter for arthropods, which are a representative component of the decomposition process. Four experiments, one per season, were conducted in a semi-rural area of Bahía Blanca, Argentina, to study the trophic roles of cadaveric beetles, evaluating the abundance, composition and dominance during all decomposition stages and seasons. Species of necrophagous, necrophilous and omnivorous habits were found. Abundance, composition and dominance of beetles in relation to their trophic roles changed with seasons and decomposition stages. Guilds and patterns of succession were established in relation to those periods. Trophic roles could be an indicator of beetle associations with decomposition stages and seasons.