tailieunhanh - Báo cáo lâm nghiệp: " Web-spinning sawflies of the genus Cephalcia Panzer (Hymenoptera, Pamphiliidae) in the Picea abies forests of the Beskidy Mountains (Poland)"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: Web-spinning sawflies of the genus Cephalcia Panzer (Hymenoptera, Pamphiliidae) in the Picea abies forests of the Beskidy Mountains (Poland). | JOURNAL OF FOREST SCIENCE 53 2007 Special Issue 63-68 Web-spinning sawflies of the genus Cephalcia Panzer Hymenoptera Pamphiliidae in the Picea abies forests of the Beskidy Mountains Poland M. Jachym Department of Forest Management in Mountain Regions Forest Research Institute Cracow Poland ABSTRACT This article presents a review of data and results of investigations from the period 1958-2006 regarding the occurrence of insects of the genus Cephalcia Panzer Hymenoptera Pamphiliidae in Norway spruce stands of the Beskidy Mountains Western Carpathians southern Poland . Currently eight species are known for the area C. abietis C. alashanica C. alpina C. annulicornis C. arvensis C. erythrogaster C. fulva and C. masuttii. Information regarding each species is given with details on identification local occurrence and importance. Keywords web-spinning sawfly Picea abies Cephalcia Beskidy Mountains Poland The increased level of the occurrence of web spinning sawflies associated with spruce in the Polish part of the Beskidy Mts. is mentioned since the fifties of the previous century. Koehler et al. 1958 described a few known for years outbreaks of Cephalcia abietis in the Sudetes and indicate its occurrence in those times in Beskid Slạski and Maly within the Forest Inspectorates Szczyrk and Wapienica. During the following years the occurrence of Cephalcia abietis was recorded in the Forest Inspectorate Porạbka actually - Forest Inspectorate Andrychow in Beskid Maly Kapuscinski Capecki 1963 . In the collections of the Forest Research Institute Department of Forest Management in Mountain Regions in Cracow FRI DFMMR there are more than one thousand specimens of the genus Cephalcia caught since the beginning of the eighties mainly during periods of mass outbreaks in the Beskidy Mts. In the while studies were conducted to recognize and describe the populations of individual species of web-spinning sawflies their economic importance and biology Cwiklinski 1986 as well as to .