Geographical variation in food plant selection of Eupithecia gelidata Möschler, 1860 (Lepidoptera, Geometridae)

The relict bog populations of Eupithecia gelidata Möschl. in South Bohemia are obligatorily associated with Ledum palustre L., which is here the dominant shrub, all Salix species being absent. In the subarctic and boreal populations of E. gelidata, altemative food plants are willows (Salix spp.). Under laboratory conditions, larvae of the Bohemian populations can accomplish their development feeding on Salix, but Ledum is clearly preferred. The larvae living on Ledum and Salix are usually differently coloured. Thus, in spite of the different food plants and coloration of the larvae, the species seems to be taxonomically homogeneous

Leaf-spinning moths (Lepidoptera) feeding on Vaccinium uliginosum L. along an ecological gradient of central European peat bogs

The leaf-spinning moths (Lepidoptera: Tortricidae, Gelechiidae, Chimabachidae and Geometridae) associated with the boreal plant Vaccinium uliginosum L. were investigated in two different peat bogs (Mrtvy luh and Chalupská slat’), both situated in the Sumava Mts., Czech Republic. During four years (1998–2001) of collecting leaf spinnings, 19 species of moths were recorded from both localities. Their occurrence was clearly structured along a distinct ecological (mesoclimatic) gradient. Species closely associated with peat bogs (tyrphobiontic and tyrphophilous taxa) were found to be most abundant in the treeless centres of both peat bogs in comparison with marginal parts. Vaccinium uliginosum is the only food plant of stenotopic boreal moths Pammene luedersiana (Sorhagen) and Athrips pruinosella (Lienig & Zeller) recorded in the Sumava Mts

Parasitoids (Hymenoptera) of leaf-spinning moths (Lepidoptera) feeding on Vaccinium uliginosum L. along an ecological gradient in central European peat bogs

Parasitoids of leaf-spinning Lepidoptera associated with two isolated central European peat bogs were investigated. Five families of parasitoid Hymenoptera (Braconidae, lchneumonidae, Eulophidae, Pteromalidae and Encyrtidae) were recorded. Three categories were recognised: (1) primary parasitoids, (2) facultative hyperparasitoids and (3) obligatory hyperparasitoids. Ten species of Braconidae, five species and seven marked morphospecies among lchneumonidae, and three species of Chalcidoidea were identified. Despite of some niche-specific (but less host-specific) parasitoids, all these hymenopterans are likely to be generalists and none of them were confirmed to be habitat and/or host specialists. Unlike their eurytopic (opportunistic tyrphoneutral) parasitoids, the Lepidoptera hosts associated with peat bogs are partially highly stenotopic (tyrphobionts and tyrphophiles). The occurrence of parasitoids compared to their potential hosts was structured along an ecological (mesoclimatic) gradient, so most parasitoids were recorded from margins while stenotopic (narrow habitat adaptation) moths were mostly distributed near the centre of the bog habitat

The Patient Health Questionnaire-9 for detection of major depressive disorder in primary care: consequences of current thresholds in a crosssectional study

<p>Abstract</p> <p>Background</p> <p>There is a need for brief instruments to ascertain the diagnosis of major depressive disorder. In this study, we present the reliability, construct validity and accuracy of the PHQ-9 and PHQ-2 to detect major depressive disorder in primary care.</p> <p>Methods</p> <p>Cross-sectional analyses within a large prospective cohort study (PREDICT-NL). Data was collected in seven large general practices in the centre of the Netherlands. 1338 subjects were recruited in the general practice waiting room, irrespective of their presenting complaint. The diagnostic accuracy (the area under the ROC curve and sensitivities and specificities for various thresholds) was calculated against a diagnosis of major depressive disorder determined with the Composite International Diagnostic Interview (CIDI).</p> <p>Results</p> <p>The PHQ-9 showed a high degree of internal consistency (ICC = 0.88) and test-retest reliability (correlation = 0.94). With respect to construct validity, it showed a clear association with functional status measurements, sick days and number of consultations. The discriminative ability was good for the PHQ-9 (area under the ROC curve = 0.87, 95% CI: 0.84-0.90) and the PHQ-2 (ROC area = 0.83, 95% CI 0.80-0.87). Sensitivities at the recommended thresholds were 0.49 for the PHQ-9 at a score of 10 and 0.28 for a categorical algorithm. Adjustment of the threshold and the algorithm improved sensitivities to 0.82 and 0.84 respectively but the specificity decreased from 0.95 to 0.82 (threshold) and from 0.98 to 0.81 (algorithm). Similar results were found for the PHQ-2: the recommended threshold of 3 had a sensitivity of 0.42 and lowering the threshold resulted in an improved sensitivity of 0.81.</p> <p>Conclusion</p> <p>The PHQ-9 and the PHQ-2 are useful instruments to detect major depressive disorder in primary care, provided a high score is followed by an additional diagnostic work-up. However, often recommended thresholds for the PHQ-9 and the PHQ-2 resulted in many undetected major depressive disorders.</p

Leaf-spinning moths (Lepidoptera) feeding on Vaccinium uliginosum L. along an ecological gradient of the Šumava peat bogs

The leaf-spinning moths (Lepidoptera: Tortricidae, Gelechiidae, Chimabachidae and Geometridae) associated with the boreal plant Vaccinium uliginosum L. were investigated in two different peat bogs (Mrtvý Luh near Volary and Chalupská Slať near Borová Lada). During four years (1998-2001) of collecting leaf spinnings, 19 species of moths were recorded from both peat bogs. The occurence of moths was structured along a distinct mesoclimatic gradient. Species closely associated with peat bogs (tyrphobiontic and tyrphophilous taxa) were found to be most abundant in treeless centers of both bogs in comparisonwith marginal parts

Relict and endemitic insect fauna is basic priority for conservation of the Šumava Mts

Relict and endemitic insect fauna is basic priority for conservation of the Šumava Mts

Ergebnisse der Albanien-Expedition 1961 des Deutschen Entomologischen Institutes. 41. Beitrag. Diptera: Rhagionidae.

In dieser Arbeit wurde das Material der Familie Rhagionidae der Albanien-Expedition des Deutschen Entomologischen Institutes bearbeitet, ergänzt durch die Ausbeute der Albanien-Reise von J. Moucha. Das untersuchte Material umfaßte 20 Exemplare in 5 Arten, darunter zwei Erstfunde für Albanien. Unter Berücksichtigung der bisherigen Beiträge zur Rhagioniden-Fauna Albaniens sind aus diesem Land jetzt insgesamt 8 Arten bekannt. Die Arbeit wird durch einen historischen Überblick über die Erforschung der Balkanfauna dieser Familie und eine Verbreitungstabelle ergänzt.The present paper evaluates the material on the family Rhagionidae collected in the expedition to Albania by Deutsches Entomologisches Institut and supplemented by the findings of J. Moucha's tour of Albania. The material under investigation consisted of 20 specimens of 5 species, two of which were new in Albania. Together with previous findings there are now 8 species of Rhagionidae known from Albania. The conclusion gives an historical survey of the study of the Balkan population of this family and a table of its distribution

Argyroploce arbutella (Tortricidae) associated with a montane peat bog in the Sumava Mountains, Czech Republic

Volume: 21Start Page: 283End Page: 28