Hábitos alimentares de larvas de Chironomidae (Insecta: Diptera) do córrego Vargem Limpa, Bauru, SP, Brasil

Abstract

O presente estudo analisou os hábitos alimentares e a estrutura da fauna de Chironomidae do córrego Vargem Limpa, em dezembro de 2004. O principal item alimentar ingerido pela maioria dos gêneros analisados (Beardius,

Immatures of Chironomidae (Insecta – Diptera) under the action of pesticides in irrigated rice field

“…The family plays an important role in the trophic chains of aquatic communities, representing the major link between the producers and secondary consumers, since their larvae, pupae and adults are food for larger invertebrates, shes, amphibians and birds (Epler 2001). The genera of the family are not much selective in terms of food, but are subject to environmental characteristics, which may re ect the quality of the food available (Silva et al 2008b). …”

Notes on predator-prey relationships among Tanypodinae larvae (Diptera, Chironomidae) and mites (Acariformes) in Brazilian subterranean aquatic environments

“…However, in unfavorable foraging conditions, they may adopt generalized and opportunistic strategies, using a variety of foods that are available in the environment (Silva et al 2008). Mites are among the food items that may be consumed by Tanypodinae (Blakely et al 2010).…”

“…that are unfavorable for other organisms (e.g., polluted or with low oxygen content) (Silva et al 2008). Hence, chironomids are considered as good indicators of water quality (Saether 1979, Quinlan andSmol 2001).…”

“…Because these chironomids are opportunistic organisms (Silva et al 2008), they can consume a variety of food items in oligotrophic environments, thus consuming mites at random.…”

“…These organisms ingest various food items, such as algae and detritus and their associated microorganisms, besides some invertebrates (Silva et al 2008). They also serve as food for many other aquatic invertebrates (Schmid-Araya and Schmid 2000).…”