Five treatments were used to exclude naturally occurring predators and parasitoids, based on body size and flight ability, to assess their effect on Ostrinia nubilalis (Hübner) populations on corn plaits. Two initial O. nubilalis egg densities (one egg mass and three egg masses per plant) were assigned to each treatment. Egg predation was higher in uncaged treatments than in caged treatments. F...

Until recently, it was believed that microbial communities at high salinities are dominated exclusively by Archaea and Bacteria and one eukaryotic species, the alga Dunaliella salina. Recently, it became evident that melanized fungi, so far described only in the crystallization pond of Adriatic salterns within the season of salt production, can be considered as a new group of eukaryotic halophi...

In woodland streams, the decomposition of allochthonous organic matter constitutes a fundamental ecosystem process, where aquatic hyphomycetes play a pivotal role. It is therefore greatly affected by water temperature and nutrient concentrations. The individual effects of these factors on the decomposition of litter have been studied previously. However, in the climate warming scenario predicte...

Aquatic hyphomycetes dominate leaf decomposition in streams, and their biomass is an important component in the diet of leaf-eating invertebrates. After 2 weeks of exposure in a first-order stream, maple leaf disks had low levels of fungal biomass and species diversity. Spore production by aquatic hyphomycetes also was low. Subsets of these disks were left in the stream for another 3 weeks or i...

Three Hypomyces and one Cladobotryum species are studied and reported as new records and also new anamorph/teleomorph connections of fungicolous fungi for Iran. Anamorphs of two species H. aurantius and H. rosellus (Cladobotryum varium and C. dendroides, respectively) have already been reported from Iran. The anamorph/teleomorph association of H. polyporinus/C. clavisporum was also found and wa...

1. We investigated the effect of moderate eutrophication on leaf litter decomposition and associated invertebrates in five reference and five eutrophied streams in central Portugal. Fungal parameters and litter N and P dynamics were followed in one pair of streams. Benthic invertebrate parameters that are considered useful in bioassessment were estimated in all streams. Finally, we evaluated th...

In stream detrital food webs, interactions occur between aquatic hyphomycetes associated with decomposing leaves and shredders consuming those leaves. However, few studies have examined how the feeding activity of shredders affects aquatic hyphomycetes. We examined the effect of shredder feeding on aquatic hyphomycete communities associated with submerged leaves in two southern Appalachian head...

In woodland streams, the decomposition of allochthonous organic matter constitutes a fundamental ecosystem process, where aquatic hyphomycetes play a pivotal role. It is therefore greatly affected by water temperature and nutrient concentrations. The individual effects of these factors on the decomposition of litter have been studied previously. However, in the climate warming scenario predicte...

48 Aquatic hyphomycetes strongly contribute to organic matter dynamics in streams but their 49 abilities to colonize leaf litter buried in streambed sediments remain unexplored. Here, we 50 conducted field and laboratory experiments (slow-filtration columns and stream-simulating 51 microcosms) to test the following hypotheses: (a) that the hyporheic habitat acting as a 52 physical sieve for spo...

Based on the fact that hyphomycetes or ingoldian fungi are microorganisms present in aquatic environments such as rivers which they involved decomposition of organic material, returning energy to higher levels trophic chain, but despite their importance, few studies have been conducted diversity and presence these ecosystems, objective this work was identify upper Bogotá river basin. This done ...