Document Detail


Size and spatial distribution of stray dog population in the University of São Paulo campus, Brazil.
MedLine Citation:
PMID:  23273378     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A longitudinal study was carried out to describe the size and spatial distribution of the stray dog population in the University of São Paulo campus, Brazil from November 2010 to November 2011. The campus is located within the urban area of São Paulo, the largest city of Brazil, with a population over 11million. The 4.2km(2) that comprise the university grounds are walled, with 10 access gates, allowing stray dogs to move in and out freely. Over 100,000 people and 50,000 vehicles circulate in the campus daily. Five observations were made during the study period, using a mark-resight method. The same route was performed in all observations, being traveled twice on each observation day. Observed animals were photographed and the sight coordinates were obtained using a GPS device. The estimated size of the stray dog population varied from 32 (CI 95% 23-56) to 56 (CI 95% 45-77) individuals. Differences between in- and outward dog movements influenced dog population estimates. Overlapping home ranges of docile dogs were observed in areas where most people circulate. An elusive group was observed close to a protected rain forest area and the estimated home range for this group did not overlap with the home ranges for other dogs within the campus. A kernel density map showed that higher densities of stray dog sighting is associated with large organic matter generators, such as university restaurants. We conclude that the preferred source of food of the stray dogs on the University of São Paulo campus was leftover food deliberately offered by restaurant users. The population was stable during the study period and the constant source of food was the main reason to retain this population within the campus.
Authors:
Ricardo Augusto Dias; Aline Gil Alves Guilloux; Mauro Riegert Borba; Maria Cristina de Lourdes Guarnieri; Ricardo Prist; Fernando Ferreira; Marcos Amaku; José Soares Ferreira Neto; Mark Stevenson
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-25
Journal Detail:
Title:  Preventive veterinary medicine     Volume:  -     ISSN:  1873-1716     ISO Abbreviation:  Prev. Vet. Med.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8217463     Medline TA:  Prev Vet Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques Paiva, 87, São Paulo 05508-270, SP, Brazil. Electronic address: dias@vps.fmvz.usp.br.
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