Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis
Abstract BACKGROUND Upon request of the local administration a control campaign targeting commensal rats ( Rattus rattus , R. exulans ) was conducted in 30 sub‐districts (villages) of the World Heritage town Luang Prabang, Northern Laos, using rat bait containing lethal quantities of the parasitic p...
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crwiley:10.1002/ps.5335 2024-06-02T08:13:44+00:00 Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis Jäkel, Thomas Promkerd, Prasartthong Sitthirath, Rasmy Guedant, Pierre Khoprasert, Yuvaluk Bundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung 2019 http://dx.doi.org/10.1002/ps.5335 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fps.5335 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ps.5335 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Pest Management Science volume 75, issue 8, page 2148-2157 ISSN 1526-498X 1526-4998 journal-article 2019 crwiley https://doi.org/10.1002/ps.5335 2024-05-03T11:58:59Z Abstract BACKGROUND Upon request of the local administration a control campaign targeting commensal rats ( Rattus rattus , R. exulans ) was conducted in 30 sub‐districts (villages) of the World Heritage town Luang Prabang, Northern Laos, using rat bait containing lethal quantities of the parasitic protist Sarcocystis singaporensis . The associated investigations assessed the short‐term control efficacy, willingness of residents to co‐operate (community approach), and temporal and spatial changes of the urban rat population in response to treatment. RESULTS Biological rodent control significantly reduced rodent activity (percentage of positive tracking patches) in the town, from a mean of 25.3% (±12.8% SD) before (January–February) down to 8.0% (±4.4%) after (June) treatment. Reduction of rodent activity relative to three untreated villages was 83%. Similarly, residents observed significantly fewer rats on their properties after the campaign (mean percentage of households (HHs) per village with sightings), whereby reduction of sightings amounted to 57%. There was significant correlation between residents' observation rates and rodent activity. Among 94 rats trapped before and after treatment each, proportions of adult R. exulans and juvenile R. rattus were higher after rodent control, suggesting that a considerable part of the adult house rat population had been removed. Furthermore, a 5% post‐campaign incidence of infection suggested that few rats had survived bait uptake. CONCLUSION S. singaporensis may be used successfully as tactical biocontrol agent for culling of rats in urban environments. We propose additional components of a long‐term rodent management strategy for the town, without which the impact of culling campaigns would be limited. © 2019 Society of Chemical Industry Article in Journal/Newspaper Rattus rattus Wiley Online Library Pest Management Science 75 8 2148 2157 |
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Wiley Online Library |
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English |
description |
Abstract BACKGROUND Upon request of the local administration a control campaign targeting commensal rats ( Rattus rattus , R. exulans ) was conducted in 30 sub‐districts (villages) of the World Heritage town Luang Prabang, Northern Laos, using rat bait containing lethal quantities of the parasitic protist Sarcocystis singaporensis . The associated investigations assessed the short‐term control efficacy, willingness of residents to co‐operate (community approach), and temporal and spatial changes of the urban rat population in response to treatment. RESULTS Biological rodent control significantly reduced rodent activity (percentage of positive tracking patches) in the town, from a mean of 25.3% (±12.8% SD) before (January–February) down to 8.0% (±4.4%) after (June) treatment. Reduction of rodent activity relative to three untreated villages was 83%. Similarly, residents observed significantly fewer rats on their properties after the campaign (mean percentage of households (HHs) per village with sightings), whereby reduction of sightings amounted to 57%. There was significant correlation between residents' observation rates and rodent activity. Among 94 rats trapped before and after treatment each, proportions of adult R. exulans and juvenile R. rattus were higher after rodent control, suggesting that a considerable part of the adult house rat population had been removed. Furthermore, a 5% post‐campaign incidence of infection suggested that few rats had survived bait uptake. CONCLUSION S. singaporensis may be used successfully as tactical biocontrol agent for culling of rats in urban environments. We propose additional components of a long‐term rodent management strategy for the town, without which the impact of culling campaigns would be limited. © 2019 Society of Chemical Industry |
author2 |
Bundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung |
format |
Article in Journal/Newspaper |
author |
Jäkel, Thomas Promkerd, Prasartthong Sitthirath, Rasmy Guedant, Pierre Khoprasert, Yuvaluk |
spellingShingle |
Jäkel, Thomas Promkerd, Prasartthong Sitthirath, Rasmy Guedant, Pierre Khoprasert, Yuvaluk Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis |
author_facet |
Jäkel, Thomas Promkerd, Prasartthong Sitthirath, Rasmy Guedant, Pierre Khoprasert, Yuvaluk |
author_sort |
Jäkel, Thomas |
title |
Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis |
title_short |
Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis |
title_full |
Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis |
title_fullStr |
Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis |
title_full_unstemmed |
Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis |
title_sort |
biocontrol of rats in an urban environment in southeast asia using sarcocystis singaporensis |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/ps.5335 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fps.5335 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ps.5335 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Pest Management Science volume 75, issue 8, page 2148-2157 ISSN 1526-498X 1526-4998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ps.5335 |
container_title |
Pest Management Science |
container_volume |
75 |
container_issue |
8 |
container_start_page |
2148 |
op_container_end_page |
2157 |
_version_ |
1800737329021714432 |