Dynamic movement patterns of commensal rodents Mastomys natalensis and Rattus rattus: determining differential habitat use using Rhodamine B
Herieth Mkomwa, Rhodes Makundi, Steven Belmain, Alfan A. Rija, Apia Massawe, Aurore Ponchon, Mwajabu Selemani, Marcela P.A. Espinaze, Sandra Telfer
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{"title":"Dynamic movement patterns of commensal rodents Mastomys natalensis and Rattus rattus: determining differential habitat use using Rhodamine B","authors":"Herieth Mkomwa, Rhodes Makundi, Steven Belmain, Alfan A. Rija, Apia Massawe, Aurore Ponchon, Mwajabu Selemani, Marcela P.A. Espinaze, Sandra Telfer","doi":"10.1002/ps.8435","DOIUrl":null,"url":null,"abstract":"BACKGROUNDUnderstanding movement patterns of rodent pests is essential for planning management strategies. Currently, for many rural village contexts, there is limited information on how rodents move between domestic and peridomestic areas, and the surrounding habitats. We investigated movement of the multimammate rat, <jats:italic>Mastomys natalensis</jats:italic> and the black rat, <jats:italic>Rattus rattus</jats:italic> in nine villages in Kilombero District, Tanzania. We used Rhodamine B (RhB) baits placed inside houses (<jats:italic>R. rattus</jats:italic> preferred habitat) in five villages and placed outside (<jats:italic>M. natalensis</jats:italic> preferred habitat) in four villages.RESULTSWhilst both species were rarely captured in their nonpreferred habitat (5% <jats:italic>M. natalensis</jats:italic> inside houses; 23% <jats:italic>R. rattus</jats:italic> outside houses), evidence of RhB consumption when bait was in nonpreferred habitat was high for both species (50% <jats:italic>M. natalensis</jats:italic>; 57% <jats:italic>R. rattus</jats:italic>), indicating frequent movement to nonpreferred habitats. Whilst <jats:italic>R. rattus</jats:italic> movement distances were consistent with previous studies (maximum 81 m), within our village context, <jats:italic>M. natalensis</jats:italic> moved further (maximum 132 m) compared to previous published studies. Although bait consumption rates varied seasonally, we found no evidence that utilization of nonpreferred habitat varied seasonally. <jats:italic>M. natalensis</jats:italic> females moved into houses more frequently than males, whilst immature <jats:italic>R. rattus</jats:italic> moved outside houses more than mature individuals.CONCLUSIONThese findings highlight the dynamic movement patterns of commensal rodents with implications for control and disease transmission. © 2024 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pest Management Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1002/ps.8435","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
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共生啮齿动物 Mastomys natalensis 和 Rattus rattus 的动态运动模式:利用罗丹明 B 确定不同的栖息地使用情况
背景了解鼠害的移动模式对于规划管理策略至关重要。目前,在许多农村地区,关于啮齿类动物如何在家养区、近家养区和周围栖息地之间移动的信息非常有限。我们在坦桑尼亚基隆贝罗区的九个村庄调查了多啮齿目鼠(Mastomys natalensis)和黑鼠(Rattus rattus)的移动情况。我们使用罗丹明 B(RhB)诱饵在 5 个村庄的房屋内(R. rattus 的首选栖息地)和 4 个村庄的房屋外(M. natalensis 的首选栖息地)进行诱捕。natalensis;23% R. rattus),但两个物种在非偏好栖息地消耗 RhB 的证据都很高(50% M. natalensis;57% R. rattus),这表明它们经常向非偏好栖息地移动。虽然Rattus的移动距离与之前的研究一致(最长81米),但在我们村庄的范围内,M. natalensis的移动距离(最长132米)比之前发表的研究更远。虽然饵料消耗率随季节而变化,但我们没有发现证据表明对非偏好栖息地的利用随季节而变化。结论:这些发现突出了共生啮齿动物的动态移动模式,对控制和疾病传播具有重要意义。© 2024 作者。害虫管理科学》由 John Wiley & Sons Ltd 代表化学工业协会出版。
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