Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway
Abstract As the distribution and abundance of ticks increase, so do the risks of tick-borne diseases. Anaplasma phagocytophilum, transmitted by Ixodes spp. ticks, is a widespread tick-borne infection causing tick-borne fever (TBF) in domestic ruminants and human granulocytic anaplasmosis. However, t...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1054.9189 http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1054.9189 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1054.9189 2023-05-15T13:13:23+02:00 Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway Jos M Milner Floris M Van Beest The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1054.9189 http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1054.9189 http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf text ftciteseerx 2020-04-12T00:20:43Z Abstract As the distribution and abundance of ticks increase, so do the risks of tick-borne diseases. Anaplasma phagocytophilum, transmitted by Ixodes spp. ticks, is a widespread tick-borne infection causing tick-borne fever (TBF) in domestic ruminants and human granulocytic anaplasmosis. However, the role of wildlife in its epidemiology is poorly understood. Evidence of infection has been detected in wild cervids, but the pathogenicity and ecological consequences are unknown. We conducted a serological study of moose (Alces alces) in two populations in southern Norway, one where TBF was endemic (Telemark) and the other where sheep ticks (Ixodes ricinus) were essentially absent (Hedmark). Seroprevalence to A. phagocytophilum antibodies was 79 and 0 %, respectively. In Telemark, seroprevalence was significantly higher among females that calved successfully (85 %) than among others (50 %). Body mass and winter mass change were unrelated to serostatus. Relative abundance of questing ticks in Telemark was highest in deciduous forest and lowest in mature coniferous forest and higher at easterly aspects and altitudes below 350 m. Habitat factors associated with high tick abundance were risk factors for seropositivity among moose. Our findings were consistent with anaplasmosis causing a persistent subclinical infection in moose without population-level effects. Further work is needed to establish the importance of moose as a reservoir for the disease in sympatric domestic livestock. Text Alces alces Unknown Norway |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Abstract As the distribution and abundance of ticks increase, so do the risks of tick-borne diseases. Anaplasma phagocytophilum, transmitted by Ixodes spp. ticks, is a widespread tick-borne infection causing tick-borne fever (TBF) in domestic ruminants and human granulocytic anaplasmosis. However, the role of wildlife in its epidemiology is poorly understood. Evidence of infection has been detected in wild cervids, but the pathogenicity and ecological consequences are unknown. We conducted a serological study of moose (Alces alces) in two populations in southern Norway, one where TBF was endemic (Telemark) and the other where sheep ticks (Ixodes ricinus) were essentially absent (Hedmark). Seroprevalence to A. phagocytophilum antibodies was 79 and 0 %, respectively. In Telemark, seroprevalence was significantly higher among females that calved successfully (85 %) than among others (50 %). Body mass and winter mass change were unrelated to serostatus. Relative abundance of questing ticks in Telemark was highest in deciduous forest and lowest in mature coniferous forest and higher at easterly aspects and altitudes below 350 m. Habitat factors associated with high tick abundance were risk factors for seropositivity among moose. Our findings were consistent with anaplasmosis causing a persistent subclinical infection in moose without population-level effects. Further work is needed to establish the importance of moose as a reservoir for the disease in sympatric domestic livestock. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jos M Milner Floris M Van Beest |
spellingShingle |
Jos M Milner Floris M Van Beest Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway |
author_facet |
Jos M Milner Floris M Van Beest |
author_sort |
Jos M Milner |
title |
Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway |
title_short |
Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway |
title_full |
Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway |
title_fullStr |
Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway |
title_full_unstemmed |
Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway |
title_sort |
ecological correlates of a tick-borne disease, anaplasma phagocytophilum, in moose in southern norway |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1054.9189 http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1054.9189 http://pure.au.dk/portal/files/56502834/Milner_et_al_2013_Eur_J_Wildl_Res.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766258035772096512 |