Wolbachia (Alphaproteobacteria) is an inherited endosymbiont of arthropods and filarial nematodes and was reported to be widespread across insect taxa. While Wolbachia's effects on host biology are not understood from most of these hosts, known Wolbachia-induced phenotypes cover a spectrum from obligate beneficial mutualism to reproductive manipulations and pathogenicity. Interestingly, data on...

Wildlife managers are concerned that insecticides used to control mosquitoes could suppress invertebrates on which wildlife feed. We assessed whether ultra-low volume (ULV) applications of pyrethrin, permethrin, and malathion for control of adult mosquitoes reduced macroinvertebrate abundance and biomass or killed mosquitofish in seasonal wetlands in California. Pyrethrin was applied over 3 sea...

Amphibian predator-insect prey relationships are common in terrestrial habitats, but amphibian larvae are preyed upon by a variety of aquatic hemipterans in aquatic habitats. This paper suggests that the survival of the nymphs of the endangered aquatic hemipteran Kirkaldyia (=Lethocerus) deyrolli (Belostomatidae: Heteroptera) is directly and indirectly affected by the abundance of their amphibi...

This paper presents the results of a study hemipteran assemblages in aquatic and semiaquatic biotopes Meshchera National Park. The insect fauna, which includes 80 species 21 families, eurytopic species, polyphytophages, broad oligophytophages, inhabiting with an herbaceous cover wide range humidity. fauna is mainly represented by Trans-Palearctic, Superatlantic Holarctic species. greatest fauni...

Abstract The Indonesian government plans to turn Central Kalimantan province into a national food barn by planting rice paddies in several places, including shallow peatlands. Tropical peatlands have limited potential be used as agricultural land since the growing media some cases, is not conducive root development, saturated-water soil that poissons plants. Aquatic invertebrates can indicators...

The diets of four diurnal fish species (Creagrutus bolivari, Knodus deuterodonoides, Knodus sp. and Poecilia reticulata) were examined during a year in the Orituco stream at northern Venezuela. The fishes were sampled monthly from February 1991 to March 1992 (except October 1991 and February 1992) in the stream main channel with a beach seine and a cast net. Diet is reported as frequency of occ...

Pesticides constitute a major anthropogenic addition to natural communities. In aquatic communities, a great majority of pesticide impacts are determined from singlespecies experiments conducted under laboratory conditions. Although this is an essential protocol to rapidly identify the direct impacts of pesticides on organisms, it prevents an assessment of direct and indirect pesticide effects ...

Fipronil, a relatively new insecticide more recently developed than organophosphates and pyrethroids, has been detected in surface water draining from agricultural and urban-developed areas. This insecticide is primarily lost through subsurface and surface drainage from terrestrial areas where it has been applied. Invasive aquatic plants often need to be managed in these receiving water bodies ...

Invertebrate iridescent viruses (IIVs) are icosahedral DNA viruses that infect invertebrates, mainly insects and terrestrial isopods, in damp and aquatic habitats. Exhaustive searches of databases resulted in the identification of 79 articles reporting 108 invertebrate species naturally infected by confirmed or putative iridoviruses. Of these, 103 (95%) were arthropods and the remainder were mo...

Evolutionary history determines how aquatic insects cope with extreme fl ow events, both natural and anthropogenic. From a macroevolutionary point of view, aquatic insects possess different modes of adaptation (morphological, behavioural, or life history) to cope with fl ow events. For example, some Ephe meroptera, Plecoptera and Trichoptera are adapted to long-term average cycles of fl ood and...