Using Rhodamine B to assess the movement of small mammals in an urban slum. Issue 11 (11th August 2021)
- Record Type:
- Journal Article
- Title:
- Using Rhodamine B to assess the movement of small mammals in an urban slum. Issue 11 (11th August 2021)
- Main Title:
- Using Rhodamine B to assess the movement of small mammals in an urban slum
- Authors:
- Awoniyi, Adedayo Michael
Souza, Fábio Neves
Zeppelini, Caio Graco
Xavier, Bárbara Inês A.
Barreto, Ana Maria
Santiago, Diogo César C.
Santana, Juliet Oliveira
da Silva, Eduardo Mendes
Costa, Federico
Begon, Michael
Khalil, Hussein - Abstract:
- Abstract: The small mammals, especially rats are pest species that are present in cities world‐wide. The rat moves around and into residences and other anthropogenic structures. It is especially ubiquitous in urban slums and a threat to infrastructure and public health due to the pathogens it carries and transmits. Effective control of rat populations in most urban areas has been unsuccessful, despite several rodent control efforts. Limited information about rat movement distance has hindered identification of control units and effective scales at which to enact control during interventions. We evaluated the suitability of Rhodamine B, a non‐toxic biomarker, for assessing the distance travelled by rats in urban slums. We tracked rats over two campaigns between 2019 and 2020. Overall, 27.9% of trapped rats showed signs of Rhodamine B in their whiskers under fluorescence microscope. This shows that our method provides a viable alternative for investigating the movement of small mammals in this area. We found that rats move up to 90 m distance in urban slums, with smaller rats travelling more actively than bigger rats. Information obtained from this study should be useful in guiding efficient rodent control initiatives to reduce the risk of household rodent infestation and rodent‐borne disease in urban slums. Resumo: Os pequenos mamíferos, especialmente ratos, são espécies de pragas que estão presentes em cidades no mundo todo. Os ratos se movem ao redor e dentro de residênciasAbstract: The small mammals, especially rats are pest species that are present in cities world‐wide. The rat moves around and into residences and other anthropogenic structures. It is especially ubiquitous in urban slums and a threat to infrastructure and public health due to the pathogens it carries and transmits. Effective control of rat populations in most urban areas has been unsuccessful, despite several rodent control efforts. Limited information about rat movement distance has hindered identification of control units and effective scales at which to enact control during interventions. We evaluated the suitability of Rhodamine B, a non‐toxic biomarker, for assessing the distance travelled by rats in urban slums. We tracked rats over two campaigns between 2019 and 2020. Overall, 27.9% of trapped rats showed signs of Rhodamine B in their whiskers under fluorescence microscope. This shows that our method provides a viable alternative for investigating the movement of small mammals in this area. We found that rats move up to 90 m distance in urban slums, with smaller rats travelling more actively than bigger rats. Information obtained from this study should be useful in guiding efficient rodent control initiatives to reduce the risk of household rodent infestation and rodent‐borne disease in urban slums. Resumo: Os pequenos mamíferos, especialmente ratos, são espécies de pragas que estão presentes em cidades no mundo todo. Os ratos se movem ao redor e dentro de residências e outras estruturas antrópicas. São ubíquos especialmente em favelas e ameaçam a infraestrutura e saúde pública devido aos patógenos que carregam e transmitem. O controle efetivo de populações de ratos na maioria das áreas urbanas tem sido mal sucedido, apesar de vários esforços no controle de roedores. As informações limitadas sobre distância do movimento de ratos têm impedido a identificação de unidades de controle e escalas efetivas nas quais se efetua o controle durante as intervenções. Nós avaliamos a adequação da Rodamina‐B, um biomarcador não‐tóxico, para avaliar a distância percorrida por ratos em favelas. Nós rastreamos ratos por duas campanhas entre 2019 e 2020. No geral, 27, 9% dos ratos capturados mostraram sinais de Rodamina‐B em seus bigodes sob microscópio de fluorescência. Isso mostra que nosso método fornece uma alternativa para investigar o movimento de pequenos mamíferos nessa área. Nós descobrimos que os ratos se movem em distâncias acima de 90 m em favelas, com ratos menores percorrendo mais ativamente que ratos maiores. As informações obtidas a partir desse estudo devem ser úteis para guiar iniciativas eficientes de controle de roedores para reduzir o risco de infestação doméstica e doenças transmitidas por roedores em favelas. … (more)
- Is Part Of:
- Methods in ecology and evolution. Volume 12:Issue 11(2021)
- Journal:
- Methods in ecology and evolution
- Issue:
- Volume 12:Issue 11(2021)
- Issue Display:
- Volume 12, Issue 11 (2021)
- Year:
- 2021
- Volume:
- 12
- Issue:
- 11
- Issue Sort Value:
- 2021-0012-0011-0000
- Page Start:
- 2234
- Page End:
- 2242
- Publication Date:
- 2021-08-11
- Subjects:
- rat -- rhodamine B -- rodent -- slum -- snap trap -- zoonoses
Ecology -- Periodicals
Evolution -- Periodicals
577 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)2041-210X ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1111/2041-210X.13693 ↗
- Languages:
- English
- ISSNs:
- 2041-210X
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 19938.xml