Latest Articles from Journal of Hymenoptera Research Latest 2 Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Thu, 28 Mar 2024 19:47:10 +0200 Pensoft FeedCreator https://jhr.pensoft.net/i/logo.jpg Latest Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Review of adult diapause in ichneumonid wasps (Hymenoptera, Ichneumonidae) https://jhr.pensoft.net/article/83618/ Journal of Hymenoptera Research 91: 185-208

DOI: 10.3897/jhr.91.83618

Authors: Fons Verheyde, Donald L. J. Quicke

Abstract: The mechanisms and ecological circumstances of adult diapause in Ichneumonidae are poorly studied. An overview is presented of what observations and research have been carried out on ichneumonid diapause to date, and new ecological and distributional data are presented. The new data primarily concerns species that hibernate in association with trees, based on observations made in Belgium and the Netherlands. A preliminary checklist of the 50 species that are now known to hibernate is provided for both these countries. Auberteterus alternecoloratus (Cushman, 1929), Dicaelotus montanus (de Stefani, 1885), Dicaelotus pictus (Schmiedeknecht, 1903) and Orthocentrus sannio Holmgren, 1858 are reported as adult hibernators for the first time. Four species are newly recorded for the Belgian or Dutch faunas.

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Review Article Thu, 30 Jun 2022 17:00:07 +0300
Influence of the reduction of urban lawn mowing on wild bee diversity (Hymenoptera, Apoidea) https://jhr.pensoft.net/article/7929/ Journal of Hymenoptera Research 49: 51-63

DOI: 10.3897/JHR.49.7929

Authors: Laura Wastian, Philipp Andreas Unterweger, Oliver Betz

Abstract: To analyse the effects of reduced green space management in urban areas on the biodiversity of insects, we compared intensely mowed lawns (mowed 12 times per year) with meadows under reduced maintenance (mowed only twice per year) in the city of Tübingen (Baden-Württemberg, Germany). Over the entire field season, 177 wild bee individuals representing 43 species were caught using sweep nets. Areas with reduced maintenance showed significantly higher total species numbers and biodiversity indices. Our research supports the initiative “Bunte Wiese (Colourful Meadow) - Species Diversity in Public Greenspaces” of the University of Tübingen, which is campaigning for the enhancement of species diversity in public urban greenland areas by reorganising intensive mowing into a “twice a year” programme.

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Research Article Thu, 28 Apr 2016 10:15:51 +0300