Hanna PIEKARSKA BONIECKA, Michal SIATKOWSKI, Pawel TRZCINSKI, Idzi SIATKOWSKI

The impact of the vegetation of apple orchard edges on quantityand quality structure of predatory hoverflies(Diptera:Syrphidae) communities

Bu çalışma elma bahçesi sınır vejetasyonlarının bahçe içerisindeki avcı Syrphidae'lerin nicel ve nitel yapısı üzerindeki etkilerinin belirlenmesi için 2008 ve 2010 yılları arasında Wielkopolska (Polonya)'nın batı kısmında bulunan Czempin bölgesinde yürütülmüştür. Çalışmada elma bahçelerindeki ve bahçe sınır vejetasyonlarındaki Syrphidae komünitelerinin nicel ve nitel analizleri yapılmış olup sınır vejetasyonlarına bahçe kenarında bulunan çalılıklar, ağaçlar ve yol alanları dahil edilmiştir. Çalışma sonucunda toplamda ülke syrphid faunasının %8.8'ni oluşturan 35 Syrphidae türü saptanmıştır. Bahçe içerisinde 24, bahçe sınırlarında 32 syrphid türü belirlenmiştir. Çalışmada toplamda yakalanan birey sayısı 5080 olup bu bireylerden 2338 adeti bahçe içerisinden 2742 adeti bahçe kenarlarından yakalanmıştır. Çalışma sonucunda bahçe sınırlarının vejetasyon bakımından zengin olduğu bahçelerde tür zenginliğinin bahçe sınırlarının düzenlendiği ve vejetasyon bakımından zengin olmayan bahçelere oranla daha zengin olduğu belirlenmiştir. Vejetasyon bakımından daha zengin elma bahçeleri, bahçe kenarında bitkinin olmadığı elma bahçelerine nazaran daha baskın Syrphidae faunasına sahip bulunmuştur. Hem elma bahçeleri hem de bahçe sınır vejetasyonlarında en çok Episyrphus balteatus (De Geer, 1776) ve Eupeodes corollae (Fabricius, 1794) türlerine rastlanılmıştır. Bahçe içerisinde ve bahçe sınırlarında tespit edilen syrphid komünitelerinin nicel ve nitel bakımdan birbirlerine çok benzediği tespit edilmiştir. Çalışma sonucunda bahçe sınırlarının zenginleştirildiği elma bahçelerinde Syrphidae faunasının zenginleştirilmemiş elma bahçelerine nazaran daha zengin olduğu tespit edilmiştir

Elma bahçesi sınır vejetasyonlarının avcı çiçek sineği (Diptera: Syrphidae) komünitelerinin nicel ve nitel yapılarına etkisi

The research on the impact of apple orchard edges vegetation on quantity and quality structure of predatory Syrphidae was carried out between 2008 and 2010 in the vicinity of Czempin in the western part of Wielkopolska, Poland. Quality and quantity analyses of Syrphidae communities in the apple orchards and on their edges were conducted; the edges included fields, shrubberies and a road lined with trees and bushes. The total of 35 Syrphidae species were found, which constituted 8.8% of the national fauna of this family. In the orchards 24 species and on the edges 32 species were caught. The total number of specimens of the family was 5080, out of which 2338 were caught in the orchards and 2742 on the edges.. Apple orchards with developed edge vegetation yielded higher abundances of Syrphidae than the orchard bordering on the fields. All the orchards and their edges were dominated by two species, namely Episyrphus balteatus (De Geer, 1776) and Eupeodes corollae (Fabricius, 1794). It was found that the majority of Syrphidae flies communities inhabiting the orchards and their edges showed a high similarity in their quality and qualityquantity structures. The research showed that the occurrence of well-developed vegetation with diversified species on apple orchard edges positively influences the species richness and abundance of predatory Syrphidae occurring in the orchard habitat

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