Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant

Scat-detection dogs have been used to locate feces of rare and elusive species across tropical biomes. However their detection efficiency in relation to human observers has rarely been evaluated. In this study, we evaluated the ability of a scat detection dog to locate feces in comparison with human...

Full description

Bibliographic Details
Main Authors: Márcio L. de Oliveira, Darren Norris, José F. M. Ramírez, Pedro H. de F. Peres, Mauro Galetti, José M. B. Duarte
Format: Article
Language:English
Published: Sociedade Brasileira de Zoologia 2012-04-01
Series:Zoologia (Curitiba)
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200012
_version_ 1797967126577807360
author Márcio L. de Oliveira
Darren Norris
José F. M. Ramírez
Pedro H. de F. Peres
Mauro Galetti
José M. B. Duarte
author_facet Márcio L. de Oliveira
Darren Norris
José F. M. Ramírez
Pedro H. de F. Peres
Mauro Galetti
José M. B. Duarte
author_sort Márcio L. de Oliveira
collection DOAJ
description Scat-detection dogs have been used to locate feces of rare and elusive species across tropical biomes. However their detection efficiency in relation to human observers has rarely been evaluated. In this study, we evaluated the ability of a scat detection dog to locate feces in comparison with human researchers. Human researchers and a scat detection dog surveyed for deer (Mazama spp.) feces in dense ombrofilous Atlantic forest in the Paranapiacaba continuum, SP, Brazil. A controlled experiment was used to assess the maximum effective perpendicular distance from a transect search line that the dog could detect a Mazama spp fecal sample. Results from a linear regression model revealed that the maximum effective perpendicular distance from a transect search line that the dog could detect a scat was 7.2 m. The detection success from our surveys in the Atlantic forest was zero for humans and 0.15 samples/ha or 0.20 samples/km walked for the dog team. Our results demonstrated the importance of scat-detection dogs for non invasive sampling and provide data relevant for the design of future studies.
first_indexed 2024-04-11T02:26:17Z
format Article
id doaj.art-cd97a807a9ca4bfe924be468c79bb73f
institution Directory Open Access Journal
issn 1984-4670
1984-4689
language English
last_indexed 2024-04-11T02:26:17Z
publishDate 2012-04-01
publisher Sociedade Brasileira de Zoologia
record_format Article
series Zoologia (Curitiba)
spelling doaj.art-cd97a807a9ca4bfe924be468c79bb73f2023-01-02T22:42:14ZengSociedade Brasileira de ZoologiaZoologia (Curitiba)1984-46701984-46892012-04-01292183186doi: 10.1590/S1984-46702012000200012Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnantMárcio L. de OliveiraDarren NorrisJosé F. M. RamírezPedro H. de F. PeresMauro GalettiJosé M. B. DuarteScat-detection dogs have been used to locate feces of rare and elusive species across tropical biomes. However their detection efficiency in relation to human observers has rarely been evaluated. In this study, we evaluated the ability of a scat detection dog to locate feces in comparison with human researchers. Human researchers and a scat detection dog surveyed for deer (Mazama spp.) feces in dense ombrofilous Atlantic forest in the Paranapiacaba continuum, SP, Brazil. A controlled experiment was used to assess the maximum effective perpendicular distance from a transect search line that the dog could detect a Mazama spp fecal sample. Results from a linear regression model revealed that the maximum effective perpendicular distance from a transect search line that the dog could detect a scat was 7.2 m. The detection success from our surveys in the Atlantic forest was zero for humans and 0.15 samples/ha or 0.20 samples/km walked for the dog team. Our results demonstrated the importance of scat-detection dogs for non invasive sampling and provide data relevant for the design of future studies.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200012Deerfecal samplesMazamasampling
spellingShingle Márcio L. de Oliveira
Darren Norris
José F. M. Ramírez
Pedro H. de F. Peres
Mauro Galetti
José M. B. Duarte
Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant
Zoologia (Curitiba)
Deer
fecal samples
Mazama
sampling
title Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant
title_full Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant
title_fullStr Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant
title_full_unstemmed Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant
title_short Dogs can detect scat samples more efficiently than humans: an experiment in a continuous Atlantic Forest remnant
title_sort dogs can detect scat samples more efficiently than humans an experiment in a continuous atlantic forest remnant
topic Deer
fecal samples
Mazama
sampling
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200012
work_keys_str_mv AT marcioldeoliveira dogscandetectscatsamplesmoreefficientlythanhumansanexperimentinacontinuousatlanticforestremnant
AT darrennorris dogscandetectscatsamplesmoreefficientlythanhumansanexperimentinacontinuousatlanticforestremnant
AT josefmramirez dogscandetectscatsamplesmoreefficientlythanhumansanexperimentinacontinuousatlanticforestremnant
AT pedrohdefperes dogscandetectscatsamplesmoreefficientlythanhumansanexperimentinacontinuousatlanticforestremnant
AT maurogaletti dogscandetectscatsamplesmoreefficientlythanhumansanexperimentinacontinuousatlanticforestremnant
AT josembduarte dogscandetectscatsamplesmoreefficientlythanhumansanexperimentinacontinuousatlanticforestremnant