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Start Over Creator Hirka, Anikó

1. The influence of polarized moonlight and collecting distance on the catches of winter moth Operophthera brumata (Lepidoptera: Geometridae) by light traps

Creator:
Nowinszky, László, Hirka, Anikó, Csóka, György, Petrányi, Gergely, and Puskás, János
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, zoologie, entomologie, Lepidoptera, Geometridae, winter moth, Operophthera brumata, light trap, polarized moonlight, collecting distance, 2, and 59
Language:
English
Description:
Operophthera brumata Linnaeus, 1758). Our calculations are based on data collected by the Hungarian Forestry Light Trap Network at four sites from 1961 to 2008. We also tried to estimate the influence of polarized moonlight and collecting distance, which also depends on moonlight. Our investigations revealed that the catches were the greatest in the First and the Last Quarters, and the lowest at Full Moon. The reason for this is that the proportion of polarized moonlight in the different lunar quarters varies, with the catches highest when the proportion is greatest. Collecting distance has only a minor role. and Obsahuje seznam literatury
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. Weather-dependent fluctuations in the abundance of the oak processionary moth, Thaumetopoea processionea (Lepidoptera: Notodontidae)

Creator:
Csóka, György, Hirka, Anikó, Szöcs, Levente, Móricz, Norbert, Rasztovits, Ervin, and Pödör, Zoltán
Format:
print, počítač, and online zdroj
Type:
model:article and TEXT
Subject:
motýli, dolování dat, butterflies, data mining, Lepidoptera, Notodontidae, Thaumetopoea processionea, light trap, population fluctuation, Moran-effect, drought, oak defoliator, CReMIT-analysis, 2, and 59
Language:
English
Description:
Population fluctuations of the well-known oak defoliator, the oak processionary moth (Thaumetopoea processionea L.), were studied using light trap data and basic meteorological parameters (monthly average temperatures, and precipitation) at three locations in Western Hungary over a period of 15 years (1988-2012). The fluctuations in the numbers caught by the three traps were strongly synchronized. One possible explanation for this synchrony may be similar weather at the three trapping locations. Cyclic Reverse Moving Interval Techniques (CReMIT) were used to define the period of time in a year that most strongly influences the catches. For this period, we defined a species specific aridity index for Thaumetopoea processionea (THAU-index). This index explains 54.8-68.9% of the variation in the yearly catches, which indicates that aridity, particularly in the May-July period was the major determinant of population fluctuations. Our results predict an increasing future risk of Oak Processionary Moth (OPM) outbreaks and further spread if the frequency of severe spring/summer droughts increases with global warming., György Csóka, Anikó Hirka, Levente Szöcs, Norbert Móricz, Ervin Rasztovits, Zoltán Pödör., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public