Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints

Background As a landscape architect and a major seed disperser, the lowland tapir (Tapirus terrestris) is an important indicator of the ecological health of certain habitats. Therefore, reliable data regarding tapir populations are fundamental in understanding ecosystem dynamics, including those ass...

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Main Authors: Danielle O. Moreira, Sky K. Alibhai, Zoe C. Jewell, Cristina J. da Cunha, Jardel B. Seibert, Andressa Gatti
Format: Article
Language:English
Published: PeerJ Inc. 2018-03-01
Series:PeerJ
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Online Access:https://peerj.com/articles/4591.pdf
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author Danielle O. Moreira
Sky K. Alibhai
Zoe C. Jewell
Cristina J. da Cunha
Jardel B. Seibert
Andressa Gatti
author_facet Danielle O. Moreira
Sky K. Alibhai
Zoe C. Jewell
Cristina J. da Cunha
Jardel B. Seibert
Andressa Gatti
author_sort Danielle O. Moreira
collection DOAJ
description Background As a landscape architect and a major seed disperser, the lowland tapir (Tapirus terrestris) is an important indicator of the ecological health of certain habitats. Therefore, reliable data regarding tapir populations are fundamental in understanding ecosystem dynamics, including those associated with the Atlantic Forest in Brazil. Currently, many population monitoring studies use invasive tagging with radio or satellite/Global Positioning System (GPS) collars. These techniques can be costly and unreliable, and the immobilization required carries physiological risks that are undesirable particularly for threatened and elusive species such as the lowland tapir. Methods We collected data from one of the last regions with a viable population of lowland tapir in the south-eastern Atlantic Forest, Brazil, using a new non-invasive method for identifying species, the footprint identification technique (FIT). Results We identified the minimum number of tapirs in the study area and, in addition, we observed that they have overlapping ranges. Four hundred and forty footprints from 46 trails collected from six locations in the study area in a landscape known to contain tapir were analyzed, and 29 individuals were identified from these footprints. Discussion We demonstrate a practical application of FIT for lowland tapir censusing. Our study shows that FIT is an effective method for the identification of individuals of a threatened species, even when they lack visible natural markings on their bodies. FIT offers several benefits over other methods, especially for tapir management. As a non-invasive method, it can be used to census or monitor species, giving rapid feedback to managers of protected areas.
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spelling doaj.art-482be3b68b8e423695f17f142f55afca2023-12-03T10:01:50ZengPeerJ Inc.PeerJ2167-83592018-03-016e459110.7717/peerj.4591Determining the numbers of a landscape architect species (Tapirus terrestris), using footprintsDanielle O. Moreira0Sky K. Alibhai1Zoe C. Jewell2Cristina J. da Cunha3Jardel B. Seibert4Andressa Gatti5Nicholas School of the Environment, Duke University, Durham, NC, USANicholas School of the Environment, Duke University, Durham, NC, USANicholas School of the Environment, Duke University, Durham, NC, USAPró-Tapir, Instituto de Ensino, Pesquisa e Preservação Ambiental Marcos Daniel (IMD), Vitória, Espírito Santo, BrazilPrograma de Pós-graduação em Ciências Biológicas (Biologia Animal), Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, BrazilPrograma de Pós-graduação em Ciências Biológicas (Biologia Animal), Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, BrazilBackground As a landscape architect and a major seed disperser, the lowland tapir (Tapirus terrestris) is an important indicator of the ecological health of certain habitats. Therefore, reliable data regarding tapir populations are fundamental in understanding ecosystem dynamics, including those associated with the Atlantic Forest in Brazil. Currently, many population monitoring studies use invasive tagging with radio or satellite/Global Positioning System (GPS) collars. These techniques can be costly and unreliable, and the immobilization required carries physiological risks that are undesirable particularly for threatened and elusive species such as the lowland tapir. Methods We collected data from one of the last regions with a viable population of lowland tapir in the south-eastern Atlantic Forest, Brazil, using a new non-invasive method for identifying species, the footprint identification technique (FIT). Results We identified the minimum number of tapirs in the study area and, in addition, we observed that they have overlapping ranges. Four hundred and forty footprints from 46 trails collected from six locations in the study area in a landscape known to contain tapir were analyzed, and 29 individuals were identified from these footprints. Discussion We demonstrate a practical application of FIT for lowland tapir censusing. Our study shows that FIT is an effective method for the identification of individuals of a threatened species, even when they lack visible natural markings on their bodies. FIT offers several benefits over other methods, especially for tapir management. As a non-invasive method, it can be used to census or monitor species, giving rapid feedback to managers of protected areas.https://peerj.com/articles/4591.pdfCensusFootprint identification techniqueLowland tapirNon-invasive methodsProtected area managementAtlantic Forest
spellingShingle Danielle O. Moreira
Sky K. Alibhai
Zoe C. Jewell
Cristina J. da Cunha
Jardel B. Seibert
Andressa Gatti
Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints
PeerJ
Census
Footprint identification technique
Lowland tapir
Non-invasive methods
Protected area management
Atlantic Forest
title Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints
title_full Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints
title_fullStr Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints
title_full_unstemmed Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints
title_short Determining the numbers of a landscape architect species (Tapirus terrestris), using footprints
title_sort determining the numbers of a landscape architect species tapirus terrestris using footprints
topic Census
Footprint identification technique
Lowland tapir
Non-invasive methods
Protected area management
Atlantic Forest
url https://peerj.com/articles/4591.pdf
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