Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting
Information concerning the factors affecting the circulation and distribution of free-roaming dogs is crucial in developing control actions and limiting the spread of zoonoses. The present study analyzes the influence of gender, sterilization, and environment on the spatial distribution of free-roam...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-05-01
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| Series: | Frontiers in Veterinary Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fvets.2020.00289/full |
| _version_ | 1818527806815993856 |
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| author | Saulo Nascimento de Melo Eduardo Sergio da Silva David Soeiro Barbosa Rafael Gonçalves Teixeira-Neto Gustavo Augusto Lacorte Marco Aurélio Pereira Horta Diogo Tavares Cardoso Guilherme Loureiro Werneck Claudio José Struchiner Claudio José Struchiner Vinícius Silva Belo |
| author_facet | Saulo Nascimento de Melo Eduardo Sergio da Silva David Soeiro Barbosa Rafael Gonçalves Teixeira-Neto Gustavo Augusto Lacorte Marco Aurélio Pereira Horta Diogo Tavares Cardoso Guilherme Loureiro Werneck Claudio José Struchiner Claudio José Struchiner Vinícius Silva Belo |
| author_sort | Saulo Nascimento de Melo |
| collection | DOAJ |
| description | Information concerning the factors affecting the circulation and distribution of free-roaming dogs is crucial in developing control actions and limiting the spread of zoonoses. The present study analyzes the influence of gender, sterilization, and environment on the spatial distribution of free-roaming dogs in urban settings. Animals were captured/recaptured in seven consecutive morning sampling efforts conducted at 2-monthly intervals in control and intervention areas in a medium-size town in southeastern Brazil. Capture locations were georeferenced and captured animals were microchipped before being released at their original capture sites. Dogs captured in the intervention area were subjected additionally to surgical sterilization prior to release. Home range (HR) areas were calculated by applying the minimum convex polygon method to dogs that had been captured at least three times. Land coverage zones were determined from satellite images and overlaid on maps of the study areas along with the locations of 22 commercial food outlets. HR areas showed a global mean of 448 m2 and a median of 28 m2, values that were smaller than those reported previously for dogs in rural regions. The median HR of females (64.m2) was higher than that of males (15 m2), while median HRs of animals in the control and intervention areas were similar (27 and 28.5 m2, respectively). Variability of HR was high, although animals with small HRs predominated. Free-roaming dogs grouped primarily in urbanized and transitional regions, and their spatial distribution was positively correlated with locations of commercial food outlets. While sterilization did not influence HR size, the search for food was a key factor in determining mobility and spatial aggregation of free-roaming dogs. Our findings are pertinent in understanding the ecology of free-roaming dogs in urban environments and will be applicable to strategies aimed at promoting animal welfare and preventing the dissemination of zoonoses. |
| first_indexed | 2024-12-11T06:41:09Z |
| format | Article |
| id | doaj.art-09ccf5382f9349c693c6852e87befcf6 |
| institution | Directory Open Access Journal |
| issn | 2297-1769 |
| language | English |
| last_indexed | 2024-12-11T06:41:09Z |
| publishDate | 2020-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Veterinary Science |
| spelling | doaj.art-09ccf5382f9349c693c6852e87befcf62022-12-22T01:17:13ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692020-05-01710.3389/fvets.2020.00289534549Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban SettingSaulo Nascimento de Melo0Eduardo Sergio da Silva1David Soeiro Barbosa2Rafael Gonçalves Teixeira-Neto3Gustavo Augusto Lacorte4Marco Aurélio Pereira Horta5Diogo Tavares Cardoso6Guilherme Loureiro Werneck7Claudio José Struchiner8Claudio José Struchiner9Vinícius Silva Belo10Campus Centro Oeste Dona Lindu, Universidade Federal de São João del Rei, Divinópolis, BrazilCampus Centro Oeste Dona Lindu, Universidade Federal de São João del Rei, Divinópolis, BrazilInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, BrazilCampus Centro Oeste Dona Lindu, Universidade Federal de São João del Rei, Divinópolis, BrazilInstituto Federal de Educação, Ciência e Tecnologia Minas Gerais, Campus Bambuí, Bambuí, BrazilFundação Oswaldo Cruz, Instituto Oswaldo Cruz, Rio de Janeiro, BrazilInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, BrazilDepartamento de Epidemiologia, Instituto de Medicina Social, Universidade Do Estado Do Rio de Janeiro, Rio de Janeiro, BrazilDepartamento de Epidemiologia, Instituto de Medicina Social, Universidade Do Estado Do Rio de Janeiro, Rio de Janeiro, BrazilFundação Getúlio Vargas, Escola de Matemática Aplicada, Rio de Janeiro, BrazilCampus Centro Oeste Dona Lindu, Universidade Federal de São João del Rei, Divinópolis, BrazilInformation concerning the factors affecting the circulation and distribution of free-roaming dogs is crucial in developing control actions and limiting the spread of zoonoses. The present study analyzes the influence of gender, sterilization, and environment on the spatial distribution of free-roaming dogs in urban settings. Animals were captured/recaptured in seven consecutive morning sampling efforts conducted at 2-monthly intervals in control and intervention areas in a medium-size town in southeastern Brazil. Capture locations were georeferenced and captured animals were microchipped before being released at their original capture sites. Dogs captured in the intervention area were subjected additionally to surgical sterilization prior to release. Home range (HR) areas were calculated by applying the minimum convex polygon method to dogs that had been captured at least three times. Land coverage zones were determined from satellite images and overlaid on maps of the study areas along with the locations of 22 commercial food outlets. HR areas showed a global mean of 448 m2 and a median of 28 m2, values that were smaller than those reported previously for dogs in rural regions. The median HR of females (64.m2) was higher than that of males (15 m2), while median HRs of animals in the control and intervention areas were similar (27 and 28.5 m2, respectively). Variability of HR was high, although animals with small HRs predominated. Free-roaming dogs grouped primarily in urbanized and transitional regions, and their spatial distribution was positively correlated with locations of commercial food outlets. While sterilization did not influence HR size, the search for food was a key factor in determining mobility and spatial aggregation of free-roaming dogs. Our findings are pertinent in understanding the ecology of free-roaming dogs in urban environments and will be applicable to strategies aimed at promoting animal welfare and preventing the dissemination of zoonoses.https://www.frontiersin.org/article/10.3389/fvets.2020.00289/fullfree-roaming dogssurgical sterilizationdog behaviorurban areasspatial analysiszoonosis spread |
| spellingShingle | Saulo Nascimento de Melo Eduardo Sergio da Silva David Soeiro Barbosa Rafael Gonçalves Teixeira-Neto Gustavo Augusto Lacorte Marco Aurélio Pereira Horta Diogo Tavares Cardoso Guilherme Loureiro Werneck Claudio José Struchiner Claudio José Struchiner Vinícius Silva Belo Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting Frontiers in Veterinary Science free-roaming dogs surgical sterilization dog behavior urban areas spatial analysis zoonosis spread |
| title | Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting |
| title_full | Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting |
| title_fullStr | Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting |
| title_full_unstemmed | Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting |
| title_short | Effects of Gender, Sterilization, and Environment on the Spatial Distribution of Free-Roaming Dogs: An Intervention Study in an Urban Setting |
| title_sort | effects of gender sterilization and environment on the spatial distribution of free roaming dogs an intervention study in an urban setting |
| topic | free-roaming dogs surgical sterilization dog behavior urban areas spatial analysis zoonosis spread |
| url | https://www.frontiersin.org/article/10.3389/fvets.2020.00289/full |
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