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A study of important entomofauna in oak forests of Slovenia
ID Harapinov, Miroslav (Author), ID Jurc, Maja (Author)

URLURL - Presentation file, Visit http://eprints.gozdis.si/380/ This link opens in a new window

Abstract
Insects in 9 research areas in pedunculate oak and sessile oak forests in Slovenia have been studied. We identified 35 insect species as well as two genera from 13 families. The defoliation of oak leaves in studied forests was between 10 and 90 %. More than 80 % of the defoliation was caused by mottled umber and winter moth (Erannis defoliaria Cl., Operophthera brumata L.). Leaf-roll moths are an important group of pests of oak leaves and acorns. The most numerous is the green leaf-roll moth, Tortrix viridana L., followed by Archips crataegana Hb., Laspeyresia splendana Hb. and Laspeyresia amplana Hb. The ratio of appearance of oak sawflies (Apethymus abdominalis Lep. and Apethymus braccatus Gmel.) was 9 : 1. During the past 10 years, oak miner (Tischeria complanella Hb.) has attacked young oak trees heavily. Acorn destroyers (Balaninus glandium Mrsh. and Balaninus nucum L.) were important acorn pests. During the gradation of defoliators in the Prekmurje region of Slovenia there was an increased population density of their predators, such asground beetles and burying beetles (Calosoma sycophanta L., Calosoma inquisitor L., Carabus spp., Xylodrepa quadripunctata L. We can confirm that the health of oak forests in Slovenia is better than in Croatia and southeastern Europe.

Language:English
Keywords:dob, Quercus robur, graden, Quercus petraea, gozdarska entomologija, Insecta, žuželka, škodljivec, entomofauna, Slovenija, pedunculate oak, Quercus robur, sessile oak, Quercus petraea, forest entomology, Insecta, entomofauna, Slovenija
Work type:Not categorized (r6)
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2000
Publisher:Inštitut za gozdno in lesno gospodarstvo
Number of pages:Str. 75-93
Numbering:Št. 61
PID:20.500.12556/RUL-63865 This link opens in a new window
UDC:630
ISSN on article:0351-3114
COBISS.SI-ID:678054 This link opens in a new window
Publication date in RUL:10.07.2015
Views:636
Downloads:134
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 This link opens in a new window

Secondary language

Language:English
Title:Raziskava pomembne entomofavne hrastovih gozdov Slovenije
Abstract:
Na devetih raziskovalnih ploskvah v dobovih in gradnovih gozdovih v Sloveniji smo proučili entomofavno. Določili smo 35 vrst žuželk ter dva rodova iz 13 družin. Defoliacija hrastovega listja je bila 10 do 90 %. Več kot 80 % defoliacij sta povzročila veliki in mali zimski pedic (Erannis defoliaria Cl.,Operophthera brumata L.). Zavijači so pomembna skupina škodljivcev hrastovega listja in želoda: najštevilnejši je bil zeleni hrastov zavijač - Tortrix viridana L., sledili so mu Archips crataegana Hb. ter vrsti Laspeyresia splendana Hb. in Laspeyresia amplana Hb. Razmerje pojavljanja pozne in zgodnje hrastove grizlice (Apethymus abdominalis Lep. in Apethymus braccatus Gmel.) je bilo 9 : 1. Miner hrastovega listja (Tischeria complanellaHb.) je v zadnjih desetih letih močno napadal hrastov pomladek. Hrastov semenar (Balaninus glandium Mrsh.) in leskov semenar (Balaninus nucum L.) sta bila pomembna elodova škodljivca. V Prekmurju je bila v času gradacije defoliatorjev povečana gostota populacij njihovih predatorjev, kot so krešiči in mrharji (Calosoma sycophanta L., Calosoma inquisitor L., Carabus spp., Xylodrepa quadripunctata L.). Prisotnost predatorjev po gradaciji gosenic defoliatorjev je kazala na dober mehanizem regulacije naravnega ravnovesja v sestojih. Na osnovi analize lahko trdimo, da je zdravstveno stanje hrastovih gozdov v Sloveniji boljše kot na Hrvaškem ter v jugovzhodni Evropi.


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