<i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale

The vector/host ratio and host preference are important parameters for the modelling of vector-borne livestock diseases. It can be anticipated that <i>Culicoides</i> abundance is not homogeneously distributed in the landscape. We investigated the influence of host species (dairy cow, she...

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Main Authors: Armin R. W. Elbers, José L. Gonzales
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/14/7/637
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author Armin R. W. Elbers
José L. Gonzales
author_facet Armin R. W. Elbers
José L. Gonzales
author_sort Armin R. W. Elbers
collection DOAJ
description The vector/host ratio and host preference are important parameters for the modelling of vector-borne livestock diseases. It can be anticipated that <i>Culicoides</i> abundance is not homogeneously distributed in the landscape. We investigated the influence of host species (dairy cow, sheep, and a light-trap (LT) as a surrogate host) and distance of measurement to hosts on <i>Culicoides</i> abundance using a randomized block-design with 12 measuring days and seven 3-min aerial sweep-netting sessions per whole hour at three distances to the host (0, 10, and 25 m), from five hours before to and including one hour after sunset. Dairy cows were found to be a far stronger attractor of <i>Culicoides</i> midges than sheep, while both hosts were far stronger attractors of midges than the LT. <i>Culicoides</i> abundance declined significantly with increasing distance from the livestock hosts; this phenomenon was much stronger for dairy cows than for ewes. In contrast, <i>Culicoides</i> abundance increased with increasing distance from the LT, pin-pointing the apparent shortcomings of the LT as a surrogate host to lure midges. Our data indicate that livestock host species and the distance from these hosts have a profound effect on <i>Culicoides</i> abundance in the landscape.
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spelling doaj.art-d794af5e9cd24523875ff315286e3fa72023-11-18T19:49:20ZengMDPI AGInsects2075-44502023-07-0114763710.3390/insects14070637<i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape ScaleArmin R. W. Elbers0José L. Gonzales1Department of Epidemiology, Bioinformatics and Animal Studies, Wageningen Bioveterinary Research, 8200 AB Lelystad, The NetherlandsDepartment of Epidemiology, Bioinformatics and Animal Studies, Wageningen Bioveterinary Research, 8200 AB Lelystad, The NetherlandsThe vector/host ratio and host preference are important parameters for the modelling of vector-borne livestock diseases. It can be anticipated that <i>Culicoides</i> abundance is not homogeneously distributed in the landscape. We investigated the influence of host species (dairy cow, sheep, and a light-trap (LT) as a surrogate host) and distance of measurement to hosts on <i>Culicoides</i> abundance using a randomized block-design with 12 measuring days and seven 3-min aerial sweep-netting sessions per whole hour at three distances to the host (0, 10, and 25 m), from five hours before to and including one hour after sunset. Dairy cows were found to be a far stronger attractor of <i>Culicoides</i> midges than sheep, while both hosts were far stronger attractors of midges than the LT. <i>Culicoides</i> abundance declined significantly with increasing distance from the livestock hosts; this phenomenon was much stronger for dairy cows than for ewes. In contrast, <i>Culicoides</i> abundance increased with increasing distance from the LT, pin-pointing the apparent shortcomings of the LT as a surrogate host to lure midges. Our data indicate that livestock host species and the distance from these hosts have a profound effect on <i>Culicoides</i> abundance in the landscape.https://www.mdpi.com/2075-4450/14/7/637cowsheepkernelattractionblack-light suction trapdistance-dependency
spellingShingle Armin R. W. Elbers
José L. Gonzales
<i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale
Insects
cow
sheep
kernel
attraction
black-light suction trap
distance-dependency
title <i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale
title_full <i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale
title_fullStr <i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale
title_full_unstemmed <i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale
title_short <i>Culicoides</i> (Diptera: Ceratopogonidae) Abundance Is Influenced by Livestock Host Species and Distance to Hosts at the Micro Landscape Scale
title_sort i culicoides i diptera ceratopogonidae abundance is influenced by livestock host species and distance to hosts at the micro landscape scale
topic cow
sheep
kernel
attraction
black-light suction trap
distance-dependency
url https://www.mdpi.com/2075-4450/14/7/637
work_keys_str_mv AT arminrwelbers iculicoidesidipteraceratopogonidaeabundanceisinfluencedbylivestockhostspeciesanddistancetohostsatthemicrolandscapescale
AT joselgonzales iculicoidesidipteraceratopogonidaeabundanceisinfluencedbylivestockhostspeciesanddistancetohostsatthemicrolandscapescale