In order to verify the carbon source and trophic position of the main species of fishes, of the Paraná River floodplain, we analysed the proportion of stable carbon (delta 13C) and nitrogen (delta 15N) isotopes in muscle of fishes sampled in the rainy season. We analyzed adult individuals of Loricariichthys platymetopon, Schizodon borellii, Leporinus lacustris, Auchenipterus osteomystax, Iherin...

The impact of the insecticide, Synergy-505 (chlorpyrifos 50% and cypermethrin 5% E.C), on the functional response, predatory behavior, and mating behavior of a non-target reduviid, Rhynocoris marginatus (Fabricius) (Hemiptera: Reduviidae), a potential biological control agent, were studied. Though both normal and Synergy-505-exposed R. marginatus exhibited Holling's type II curvilinear function...

Three satellite DNA families were identified in three species of burying beetles, Nicrophorus orbicollis, N. marginatus, and N. americanus. Southern hybridization and nucleotide sequence analysis of individual randomly cloned repeats shows that these satellite DNA families are highly abundant in the genome, are composed of unique repeats, and are species-specific. The repeats do not have identi...

Available mitochondrial DNA sequences viz., 16S, Cyt b, Cyt c oxidase subunit - I, and Cyt c subunit-like - I gene of Rhynocoris (Kolenati) species were subjected to phylogenetic analysis to understand the intrageneric and intraspecific variations and the role of geographical isolation on speciation; using CLUSTAL W in MEGA version 5.1. This analysis includes fifteen species and four ecotypes o...

BACKGROUND Given its numerous biologically active components, Euphorbiaceae has been found to be a large plant family and polyvalent with quite interesting therapeutic activity that can be studied. MATERIALS AND METHODS The ixodicidal activity of Euphorbia cyparissias extracts was studied in vitro and in vivo. Tested concentrations were 10, 5, 2, 1, 0.5 and 0.25%. RESULTS For the in vitro s...

background: babesiosis and thosis are parasitic tick-borne diseases that cause a lot of economic loss in livestock industry. objectives: the purpose of the present study was to detect babesia and theileria infection in goats and and vector ticks in goats in mashhad. methods: one hundred blood samples of goats and 246 ticks were collected from some suspected flocks with history of piroplasmosis....

The Black-capped Becard (Pachyramphus marginatus) has two geographically isolated subspecies, including the Atlantic Forest subspecies that is distributed from Pernambuco State to Paraná State. Here we report first observation of species in Santa Catarina State, southern Brazil. On 12 November 2019 an adult male P. marginatus was observed municipality São Francisco do Sul, on northeastern coast...

Резюме. Кліщі видів Dermacentor reticulatus і Dermacentor. marginatus є одними із масових у Європі в Україні. Ці види мають дещо схожі ареали, але перший вид частіше зустрічається більш північніше, а інший південніше лісостеповій зоні Євразії. Мета дослідження. Дослідити поширення, біологію живлення та епідеміологічний стан кліщів роду Koch західних, частині центральних північних областей Украї...

Onthophagus fragosus, a new species of Onthophagus, is described from Cienfuegos Province on the island of Cuba. Specimens were collected in leaf litter samples at elevations of 650-935 m. It appears to be most closely related to O. marginatus Castelnau, the only other Cuban endemic Onthophagus species. Images of habitus and of male genitalia are provided.