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International Journal of Medical Sciences

A study on bloodsucking Tabanidae and Stomoxys calcitrans (Diptera) attacking horses and cows in Northern Scania, Sweden

Gabriela Vaduva
Department of Biology, Lund University, Lund 22362, Sweden E-mail: vaduva_gabriela@yahoo.se
Abstract :

In Sweden, during summer, grazing horses and cows are frequently exposed to bloodsucking flies. This study has been performed in the geographical areas of Gundrastorp (pasture) and Kämlehöjalt (wood pasture), in northern Scania, Sweden where the occurrences of biting flies may represent a scourge for domesticated animals. The distribution of biting flies, Tabanidae and Stomoxys calcitrans (L) (known as stable flies) was studied by insect trapping using two Nzi traps, one for each habitat. No attractants have been used in order to improve trap capture rate. This research pointed out that tabanid and stable flies did not show any preference between the two landscape types or between hosts where they get their blood meal. Capture rates increased on days with high temperature. There were also differences in number between all types of weather for both tabanid and stable flies. In terms of species activity in all types of weather, 13 species of Tabanidae displayed some differences between them in each habitat. In the genus Tabanus, Tabanus bromius and Tabanus maculicornis showed similar patterns with regards to daily activity in different types of weather, being followed by Haematopota pluvialis and Hybomitra bimaculata. Moreover, with regards to the number of male and female tabanids collected in Nzi traps, a higher difference for each area was found. As a parallel survey, the landing behavior of each genus of collected tabanids on blue and black colors before going into Nzi traps showed the same variation during the experiments. Nzi traps set near the horses and cows have shown high efficiency in capturing biting flies, allowing animals to graze somewhat undisturbed.

Keywords :
Tabanidae, Stomoxys calcitrans, Species recognition, Attractiveness, Nzi trap, Temperature

Date Deposited : 28 Nov 2016 20:19

Last Modified : 28 Nov 2016 20:19

Official URL: http://macrothink.org/journal/index.php/jbls/issue/archiv

Volume 7, Number 1, - 2016 , ISSN 2157-6076

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