Experimental and Applied Acarology (2017) 71, 151-157
Martin Weiler, Georg Gerhard Duscher, Monika Wetscher and Julia Walochnik (2017)
Tick abundance: a one year study on the impact of flood events along the banks of the river Danube, Austria
Experimental and Applied Acarology 71 (2), 151-157
Abstract: The abundance of questing ticks depends on various factors. In this study, the impact of a major flood event on tick abundance and activity was observed. Ticks were collected on a weekly basis in two approximately 2 km2 large floodplain areas on the inner and the outer bank of the river Danube north of Vienna, Austria. In 2013 before a 200 year flood event, an average of 55 ticks per hour was collected in the area on the outer bank and 21 ticks per hour in the area on the inner bank. After the flood event the tick activity was massively reduced, with 12 ticks per hour on the outer bank and 1.1 ticks per hour on the inner bank. The most distinctive factor between the two areas was the level of sediment after the flooding, with almost no sediment in the outer bank, whereas on the inner bank the average height of sediment was 270 mm. Our data indicate the residual sediment has a greater impact on tick abundance and activity than the flooding itself. Besides the direct effect of ticks being buried under the sediment, there may be important indirect effects of the sediment on the habitat of the ticks and/or the host animals. We assume that this is the reason for the generally significantly lower numbers of questing ticks in this area on the inner bank of the Danube in this region, with periodical flood events.
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Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
environment - cropping system/rotation
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Ixodes ricinus | Austria | |||
| Dermacentor reticulatus | Austria | |||
| Haemaphysalis concinna | Austria |
