High-latitude arvicoline rodents usually reproduce in warmer months, but winter breeding has been documented in several species, including the northern red-backed vole (Myodes rutilus (Pallas, 1779) Wilson and Reader, 2005; formerly Clethrionomys rutilus (Pallas, 1779)). We tested whether the reproductive condition of the species is linked to changes in environmental parameters or its body cond...

We compared experimental and calculated logP values using a data set of 235 pesticides and experimental values from four different sources: The Pesticide Manual, Hansch Manual, ANPA and KowWin databases. LogP were calculated with four softwares: HyperChem, Pallas, KowWin and TOPKAT. Crossed comparison of the experimental and calculated values proved useful, especially for pesticides. These are ...

The Camargue is an extensive wetland in the southeast of France, which is highly influenced by human activities. Large ponds, marshes and irrigated fields provide abundant potential breeding sites for mosquitoes. Mosquitoes, which are important in terms of the nuisance they cause to people and animals, the limitations they impose on tourism and their potential threat to human health. Several of...

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Приводен список из десяти зарегистрированных и трех возможных видов ос-немок (сем. Mutillidae), обитающих на территории Белгородской области. Вид Nemka viduata (Pallas, 1773) впервые отмечен в Центральной зоне европейской части России, подтверждено наличие этой Ronisia brutia (Petagna, 1787). Для указанных видов, а также для Smicromyrme sicanus (De Stefani 1887), Dasylabris maura sungora D. reg...

Microcystins are produced by bloom-forming cyanobacteria and pose significant health and ecological problems. In this study we show that zebra mussels respond differently to different strains of Microcystis aeruginosa, and that a highly toxic strain causes zebra mussels to produce large quantities of mucous pseudofaeces, 'pseudodiarrhoea', that are periodically expelled hydraulically through th...

The anatomical diffusing factors (ADFs), defined as the ratio of surface area to the thickness of the diffusion barrier, of possible respiratory surfaces of adult amphioxus (Branchiostoma lanceolatum) were evaluated using stereological methods. The ADF is greatest for the lining of the atrium and for the skin covering the segmental muscles. Calculation of the diffusing capacities for O(2) revea...

Abstract Associations of insects that live in nests and burrows small mammals are relatively poorly explored. This work therefore tries to expand the knowledge about Diptera communities (Psychodidae Sphaeroceridae) two mammals, namely Micromys minutus (Pallas, 1771) Muscardinus avellanarius (Linnaeus, 1758). In Eurasian harvest mouse psychodid species one sphaerocerid species, while hazel dormo...