Attraction of first instar larvae of Spodoptera litura to different colours was studied to determine those that could be used as effective visual attractants for trapping the larvae during dispersal. The larvae were presented with cones of coloured paper. Each cone was placed in the center of a 15-cm Petri dish around the edge of which the larvae were released. Percentage of larvae arriving at the cone was recorded at 5-min intervals over a 15-min period. Differences in the percentages reflected differences in larval attraction to the different colours. The larvae were highly attracted to Foliage Green, Green Bice and Cadmium Yellow. The larvae arrived at the Scarlet Red, Ultramarine Blue, Gray, Orange, White and Black cones in percentages that were almost equal, but lower than at the Foliage Green, Green Bice and Cadmium Yellow cones. Arrival of larvae at the coloured cones increased with time, but their relative preference for different colours remained the same. This study shows that green and yellow can be used as visual attractants in Spodoptera litura larval traps.
Moths are frequently used as indicators of biodiversity or habitat quality. Light traps are the most effective and widely used method for gathering data on moth communities. Knowing the distance from which moths are drawn to a light trap is therefore essential for the ecological interpretation of such data. Two community-wide mark-release-recapture experiments were carried out in forest habitats in central Europe in order to investigate whether the percentage of marked moths recaptured at weak artificial light sources (2 × 15 W UV-light tubes) is dependent on the distance they were released from the light source. Altogether 2,331 moths belonging to 167 species were caught at light traps and released at distances of 2–100 m. Of these moths 313 returned to the light trap within 5 min of release. Percentage recapture was generally low (gross rate 13.4%) and strongly decreased with increase in the distance at which they were released. Percentage recapture was not significantly affected by ambient temperature or the sex of the moths. Only for the Geometroidea was the percentage recaptured slightly greater for the larger species. We found no significant differences between moth super-families with regard to the distance dependence of their attraction to light. Our data confirm that the radius of attraction of low powered light traps for moths is very small often even below 10 m. Thus, moths are good indicators of habitat quality and fragmentation as they are rarely attracted from distant habitats to such light traps., Christine Truxa, Konrad Fiedler., and Obsahuje seznam literatury
Pseudocysta pankreatu patří mezi nejčastější cystické léze pankreatu. Pseudocystu lze definovat jako tekutinovou intrapankreatickou, peripankreatickou nebo extrapankreatickou kolekci s definovanou stěnou vznikající nejčastěji na pokladě chronického nebo akutního zánětu pankreatu. Jde o poměrně častou komplikaci akutní nebo chronické pankreatitidy. V diagnostice má zásadní význam UZ pro svou neinvazivitu a dostupnost. Mezi další vyšetření vykazující nejvyšší přesnost, specificitu a senzitivitu patří MDCT a ERCP. Na základě MDCT a ERCP vyšetření lze stanovit klasifikaci a na základě této klasifikace následně algoritmus léčby. MDCT vyšetření by optimálně mělo předcházet ERCP. K odlišení od maligních cystických lézí pak prokazuje největší význam EUS s FNAB nebo aspirací obsahu se stanovením onkomarkerů a AMS v aspirátu. Funkční klasifikace pseudocyst je důležitým předpokladem pro úspěšný algoritmus léčby. Klasifikace vycházejí zejména z anatomického vztahu pseudocysty k pankreatickému vývodu a morfologii parenchymu pankreatu. V léčbě se uplatňují zejména perkutánní drenáž, endoskopické a chirurgické metody., The pseudocyst of the pancreas is one of the most common cystic lesions of the pancreas. The pseudocysts can be defined as intrapancreatic, peripancreatic or extrapancreatic fluid collections with a defined wall formed mostly on the basis of acute or chronic pancreatitis. This is a relatively common complication of acute or chronic pancreatitis. Sonography is essential for the diagnosis given its noninvasivity and availability. Other assessments that show the highest accuracy, specificity and sensitivity include MDCT and ERCP. The MDCT and ERCP assessments can be used to classify the pseudocyst; the treatment algorithm is then determined based on this classification. MDCT should ideally be preceded by ERCP. EUS-FNAB or aspiration with the determination of oncomarkers and AMS in the aspirate have been shown to be most important to distinguish the pseudocyst from malignant cystic lesions. Functional classification of the pseudocyst is an important prerequisite for successful algorithm of the treatment. The classification is based mainly upon anatomical relations of the pseudocyst to the pancreatic outlet and morphology of the pancreatic parenchyma. Percutaneous drainage, endoscopic and surgical methods are mainly applied in the treatment. The authors present a case report of a very rare extrapancreatic pseudocyst., and L. Havlůj, B. Mlýnek, R. Gürlich
We performed a systematic study to check whether neurons in the area TE (the anterior part of inferotemporal cortex) in rhesus monkey, regarded as the last stage of the ventral visual pathway, could be modulated by auditory stimuli. Two fixating rhesus monkeys were presented with visual, auditory or combined audiovisual stimuli while neuronal responses were recorded. We have found that the visually sensitive neurons are also modulated by audiovisual stimuli. This modulation is manifested as the change of response rate. Our results have shown also that the visual neurons were responsive to the sole auditory stimuli. Therefore, the concept of inferotemporal cortex unimodality in information processing should be re-evaluated., P. Kaposvári ... [et al.]., and Obsahuje bibliografii a bibliografické odkazy