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Dogs trained to recognise a bark beetle pheromone locate recently attacked spruces better than human experts.

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Title: Dogs trained to recognise a bark beetle pheromone locate recently attacked spruces better than human experts.
Authors: Vošvrdová, N.1 (AUTHOR), Johansson, A.2,3 (AUTHOR), Turčáni, M.1 (AUTHOR), Jakuš, R.1 (AUTHOR), Tyšer, D.1 (AUTHOR), Schlyter, F.1,2 (AUTHOR), Modlinger, R.1 (AUTHOR) modlinger@fld.czu.cz
Source: Forest Ecology & Management. Jan2023, Vol. 528, pN.PAG-N.PAG. 1p.
Subject Terms: Bark beetles, Dog training, Ips typographus, Detector dogs, Insect societies, Dogs
Abstract: [Display omitted] • This study uses a novel approach of identifying bark beetle infestation in spruce trees using trained dogs; the traditional approach uses human specialists. • Our study demonstrates that trained dogs can detect trees more successfully and efficient than human experts. One of the most promising techniques for rapid detection of bark beetle-infested trees is the use of specially trained dogs. Due to the novelty of using dogs in detecting bark beetle-infested trees, evaluation of success or comparison with the traditional approaches is lacking. Spruces were pre-treated with a synthetic pheromone at several tree positions in six experimental forest stands of 4–12 ha. The tree positions were selected based on their arrangement in a random scheme or in patches considered suitable for bark beetle colonisation. Three dogs of different ages, sex, and levels of experience in detecting Ips typographus were compared with three experienced human bark beetle specialists. We used GPS positioning of dog tracks (unleashed), handlers, human experts, and detection points during the search under a blind-test procedure for tracking positions. The potential utility of the search methods was estimated with three aspects: 1) search success: detection of infested trees, 2) search effort: length of route, and 3) search efficiency: trees detected / unit time. Dog-handler pairs were overall more successful in detecting trees attacked by bark beetles than human experts. In particular, the success rate of dogs was higher in plots with random arrangement pre-baited trees and search efficiency was four times higher than that of the human experts. The most efficient time for the use of dogs for detection would be during the spring flight period, when detection of first attacks and small hot spots could potentially prevent the development of larger infestations. The main advantage of using the dog search method is to amplify the time-window from about one week to one month from the detection to prompt removal of the infested trees from the forest. [ABSTRACT FROM AUTHOR]
Copyright of Forest Ecology & Management is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Dogs trained to recognise a bark beetle pheromone locate recently attacked spruces better than human experts.
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  Data: <searchLink fieldCode="AR" term="%22Vošvrdová%2C+N%2E%22">Vošvrdová, N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Johansson%2C+A%2E%22">Johansson, A.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Turčáni%2C+M%2E%22">Turčáni, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jakuš%2C+R%2E%22">Jakuš, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tyšer%2C+D%2E%22">Tyšer, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schlyter%2C+F%2E%22">Schlyter, F.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Modlinger%2C+R%2E%22">Modlinger, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> modlinger@fld.czu.cz</i>
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  Data: <searchLink fieldCode="JN" term="%22Forest+Ecology+%26+Management%22">Forest Ecology & Management</searchLink>. Jan2023, Vol. 528, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Bark+beetles%22">Bark beetles</searchLink><br /><searchLink fieldCode="DE" term="%22Dog+training%22">Dog training</searchLink><br /><searchLink fieldCode="DE" term="%22Ips+typographus%22">Ips typographus</searchLink><br /><searchLink fieldCode="DE" term="%22Detector+dogs%22">Detector dogs</searchLink><br /><searchLink fieldCode="DE" term="%22Insect+societies%22">Insect societies</searchLink><br /><searchLink fieldCode="DE" term="%22Dogs%22">Dogs</searchLink>
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  Label: Abstract
  Group: Ab
  Data: [Display omitted] • This study uses a novel approach of identifying bark beetle infestation in spruce trees using trained dogs; the traditional approach uses human specialists. • Our study demonstrates that trained dogs can detect trees more successfully and efficient than human experts. One of the most promising techniques for rapid detection of bark beetle-infested trees is the use of specially trained dogs. Due to the novelty of using dogs in detecting bark beetle-infested trees, evaluation of success or comparison with the traditional approaches is lacking. Spruces were pre-treated with a synthetic pheromone at several tree positions in six experimental forest stands of 4–12 ha. The tree positions were selected based on their arrangement in a random scheme or in patches considered suitable for bark beetle colonisation. Three dogs of different ages, sex, and levels of experience in detecting Ips typographus were compared with three experienced human bark beetle specialists. We used GPS positioning of dog tracks (unleashed), handlers, human experts, and detection points during the search under a blind-test procedure for tracking positions. The potential utility of the search methods was estimated with three aspects: 1) search success: detection of infested trees, 2) search effort: length of route, and 3) search efficiency: trees detected / unit time. Dog-handler pairs were overall more successful in detecting trees attacked by bark beetles than human experts. In particular, the success rate of dogs was higher in plots with random arrangement pre-baited trees and search efficiency was four times higher than that of the human experts. The most efficient time for the use of dogs for detection would be during the spring flight period, when detection of first attacks and small hot spots could potentially prevent the development of larger infestations. The main advantage of using the dog search method is to amplify the time-window from about one week to one month from the detection to prompt removal of the infested trees from the forest. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Forest Ecology & Management is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.foreco.2022.120626
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
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      – SubjectFull: Bark beetles
        Type: general
      – SubjectFull: Dog training
        Type: general
      – SubjectFull: Ips typographus
        Type: general
      – SubjectFull: Detector dogs
        Type: general
      – SubjectFull: Insect societies
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      – SubjectFull: Dogs
        Type: general
    Titles:
      – TitleFull: Dogs trained to recognise a bark beetle pheromone locate recently attacked spruces better than human experts.
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              M: 01
              Text: Jan2023
              Type: published
              Y: 2023
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              Value: 528
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