Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region

Autores
Gatica, Ailin; Ochoa, Ana Cecilia; Pérez Iglesias, Juan Manuel
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Turtles represent one of the most threatened groups of vertebrates. Habitat loss by expansion of the agricultural frontier, exploitation and unregulated trade are the primary causes for sharp declines in many turtle species. Chelonoidis chilensis is a widespread turtle having the broadest distribution in South American continent, it has recently been reclassified from threatened to vulnerable. Considering this, it is necessary to search for non-invasive study methods that allow us to safely assess its ecological traits and monitor its populations. The objective of this work was to evaluate abundance and activity patterns of C. chilensis, using conventional and non-invasive methodologies in different years and vegetation types in Sierra de las Quijadas National Park. Conventional methodology consisted in sampling a study area through 5m width visual detection transects, placed one adjacent to another, involving a total of 168 transects (216 has). This sampling was repeated twice, with a one-year interval. Non-invasive novelty methodology consisted of using ten camera traps that were installed for two years. Turtle frequency in different vegetation types, activity patterns according to temperature and sex ratio were determined. The abundance of C. chilensis registered was 0.027 (in 2016) and 0.036 turtles/ha (in 2017). Temporal activity, observed through camera-traps, was detected between 25 to 40 °C and from 8 am to 8 pm. The results allow us to conclude that the abundance in the park is lower than what has been reported by several authors in other Chaco regions. In this sense, further studies should be made on this ecotonal region to assure the protection of this vulnerable species. This study is the first to report abundancy and activity patterns of C. chilensis in the ecotonal region with the novelty of using a non-invasive method for monitoring the species.
Fil: Gatica, Ailin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
Fil: Ochoa, Ana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
Fil: Pérez Iglesias, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
Materia
Density
Activity patterns
Chaco tortoise
Non-invasive monitoring
Ecotonal region
Camera-trap
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/236474
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/236474
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina regionGatica, AilinOchoa, Ana CeciliaPérez Iglesias, Juan ManuelDensityActivity patternsChaco tortoiseNon-invasive monitoringEcotonal regionCamera-traphttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Turtles represent one of the most threatened groups of vertebrates. Habitat loss by expansion of the agricultural frontier, exploitation and unregulated trade are the primary causes for sharp declines in many turtle species. Chelonoidis chilensis is a widespread turtle having the broadest distribution in South American continent, it has recently been reclassified from threatened to vulnerable. Considering this, it is necessary to search for non-invasive study methods that allow us to safely assess its ecological traits and monitor its populations. The objective of this work was to evaluate abundance and activity patterns of C. chilensis, using conventional and non-invasive methodologies in different years and vegetation types in Sierra de las Quijadas National Park. Conventional methodology consisted in sampling a study area through 5m width visual detection transects, placed one adjacent to another, involving a total of 168 transects (216 has). This sampling was repeated twice, with a one-year interval. Non-invasive novelty methodology consisted of using ten camera traps that were installed for two years. Turtle frequency in different vegetation types, activity patterns according to temperature and sex ratio were determined. The abundance of C. chilensis registered was 0.027 (in 2016) and 0.036 turtles/ha (in 2017). Temporal activity, observed through camera-traps, was detected between 25 to 40 °C and from 8 am to 8 pm. The results allow us to conclude that the abundance in the park is lower than what has been reported by several authors in other Chaco regions. In this sense, further studies should be made on this ecotonal region to assure the protection of this vulnerable species. This study is the first to report abundancy and activity patterns of C. chilensis in the ecotonal region with the novelty of using a non-invasive method for monitoring the species.Fil: Gatica, Ailin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; ArgentinaFil: Ochoa, Ana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; ArgentinaFil: Pérez Iglesias, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; ArgentinaSocietas Europaea Herpetologica2021-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/236474Gatica, Ailin; Ochoa, Ana Cecilia; Pérez Iglesias, Juan Manuel; Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region; Societas Europaea Herpetologica; Herpetology Notes; 14; 3-2021; 499-5052071-5773CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.biotaxa.org/hn/article/view/61719info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:10:01Zoai:ri.conicet.gov.ar:11336/236474instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:10:01.777CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
title Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
spellingShingle Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
Gatica, Ailin
Density
Activity patterns
Chaco tortoise
Non-invasive monitoring
Ecotonal region
Camera-trap
title_short Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
title_full Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
title_fullStr Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
title_full_unstemmed Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
title_sort Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region
dc.creator.none.fl_str_mv Gatica, Ailin
Ochoa, Ana Cecilia
Pérez Iglesias, Juan Manuel
author Gatica, Ailin
author_facet Gatica, Ailin
Ochoa, Ana Cecilia
Pérez Iglesias, Juan Manuel
author_role author
author2 Ochoa, Ana Cecilia
Pérez Iglesias, Juan Manuel
author2_role author
author
dc.subject.none.fl_str_mv Density
Activity patterns
Chaco tortoise
Non-invasive monitoring
Ecotonal region
Camera-trap
topic Density
Activity patterns
Chaco tortoise
Non-invasive monitoring
Ecotonal region
Camera-trap
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Turtles represent one of the most threatened groups of vertebrates. Habitat loss by expansion of the agricultural frontier, exploitation and unregulated trade are the primary causes for sharp declines in many turtle species. Chelonoidis chilensis is a widespread turtle having the broadest distribution in South American continent, it has recently been reclassified from threatened to vulnerable. Considering this, it is necessary to search for non-invasive study methods that allow us to safely assess its ecological traits and monitor its populations. The objective of this work was to evaluate abundance and activity patterns of C. chilensis, using conventional and non-invasive methodologies in different years and vegetation types in Sierra de las Quijadas National Park. Conventional methodology consisted in sampling a study area through 5m width visual detection transects, placed one adjacent to another, involving a total of 168 transects (216 has). This sampling was repeated twice, with a one-year interval. Non-invasive novelty methodology consisted of using ten camera traps that were installed for two years. Turtle frequency in different vegetation types, activity patterns according to temperature and sex ratio were determined. The abundance of C. chilensis registered was 0.027 (in 2016) and 0.036 turtles/ha (in 2017). Temporal activity, observed through camera-traps, was detected between 25 to 40 °C and from 8 am to 8 pm. The results allow us to conclude that the abundance in the park is lower than what has been reported by several authors in other Chaco regions. In this sense, further studies should be made on this ecotonal region to assure the protection of this vulnerable species. This study is the first to report abundancy and activity patterns of C. chilensis in the ecotonal region with the novelty of using a non-invasive method for monitoring the species.
Fil: Gatica, Ailin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
Fil: Ochoa, Ana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
Fil: Pérez Iglesias, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
description Turtles represent one of the most threatened groups of vertebrates. Habitat loss by expansion of the agricultural frontier, exploitation and unregulated trade are the primary causes for sharp declines in many turtle species. Chelonoidis chilensis is a widespread turtle having the broadest distribution in South American continent, it has recently been reclassified from threatened to vulnerable. Considering this, it is necessary to search for non-invasive study methods that allow us to safely assess its ecological traits and monitor its populations. The objective of this work was to evaluate abundance and activity patterns of C. chilensis, using conventional and non-invasive methodologies in different years and vegetation types in Sierra de las Quijadas National Park. Conventional methodology consisted in sampling a study area through 5m width visual detection transects, placed one adjacent to another, involving a total of 168 transects (216 has). This sampling was repeated twice, with a one-year interval. Non-invasive novelty methodology consisted of using ten camera traps that were installed for two years. Turtle frequency in different vegetation types, activity patterns according to temperature and sex ratio were determined. The abundance of C. chilensis registered was 0.027 (in 2016) and 0.036 turtles/ha (in 2017). Temporal activity, observed through camera-traps, was detected between 25 to 40 °C and from 8 am to 8 pm. The results allow us to conclude that the abundance in the park is lower than what has been reported by several authors in other Chaco regions. In this sense, further studies should be made on this ecotonal region to assure the protection of this vulnerable species. This study is the first to report abundancy and activity patterns of C. chilensis in the ecotonal region with the novelty of using a non-invasive method for monitoring the species.
publishDate 2021
dc.date.none.fl_str_mv 2021-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/236474
Gatica, Ailin; Ochoa, Ana Cecilia; Pérez Iglesias, Juan Manuel; Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region; Societas Europaea Herpetologica; Herpetology Notes; 14; 3-2021; 499-505
2071-5773
CONICET Digital
CONICET
url http://hdl.handle.net/11336/236474
identifier_str_mv Gatica, Ailin; Ochoa, Ana Cecilia; Pérez Iglesias, Juan Manuel; Abundance and activity of Chelonoidis chilensis (Gray, 1870) in the Chaco-Monte ecotone of central Argentina region; Societas Europaea Herpetologica; Herpetology Notes; 14; 3-2021; 499-505
2071-5773
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.biotaxa.org/hn/article/view/61719
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Societas Europaea Herpetologica
publisher.none.fl_str_mv Societas Europaea Herpetologica
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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