Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape

Autores
Marques, Thiago Simon; Bassetti, Luís Antonio Bochetti; Lara, Neliton Ricardo Freitas; Costa Gonçalves Portelinha, Thiago; Piña, Carlos Ignacio; Verdade, Luciano Martins
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Information on the home range and movement patterns of Neotropical crocodilians is scarce for most species, despite being essential for developing management and conservation plans. The broad-snouted caiman (Caiman latirostris) is a Neotropical crocodilian with a wide geographical distribution in South America. This species inhabits artificial reservoirs (e.g., small weirs) in silvicultural areas. However, its use of space in such circumstances is still unknown. The present study aims to estimate home range and movement patterns of the broad-snouted caiman in a silviculture-dominated landscape in São Paulo state, southeastern Brazil. Eight adult caimans (four males and four females) were monitored by radiotelemetry (GPS-UHF system) from February 2010 to October 2011. The collected position points were used to estimate home range sizes and movement patterns. Mean home range size (± SD) of all individuals was 96.6 ± 183.9 ha and 43.2 ± 78.6 ha estimated by Minimum Convex Polygon (MPC) and 95% Kernel Density Estimate methods (KDE), respectively, without difference between the sexes. Individual mean daily movement was 37.6 ± 18.6 m/d, being greater during the reproductive period. The surrounding matrix formed by Eucalyptus plantations was relatively permeable to caiman movement. The present results suggest that the wide variation in the home range size of the broad-snouted caiman could be a result of the space-time distribution of resources and social interactions. Further, variations in environment temperature and reproductive activities can influence the movement pattern of the species. Future studies of crocodilians in agricultural landscapes should prioritize other dimensions possibly related to space use such as agricultural practices of the matrix, water contamination by agrochemicals, and hunting pressures.
Fil: Marques, Thiago Simon. Universidade de Sorocaba; Brasil
Fil: Bassetti, Luís Antonio Bochetti. Universidade de Sao Paulo; Brasil
Fil: Lara, Neliton Ricardo Freitas. Universidade de Sao Paulo; Brasil
Fil: Costa Gonçalves Portelinha, Thiago. Universidade Federal do Tocantins; Brasil
Fil: Piña, Carlos Ignacio. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Proyecto Yacaré; Argentina
Fil: Verdade, Luciano Martins. Universidade de Sao Paulo; Brasil
Materia
ANTHROPOGENIC ENVIRONMENTS
CROCODILIANS
DAILY MOVEMENT
RADIOTELEMETRY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/143022
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated LandscapeMarques, Thiago SimonBassetti, Luís Antonio BochettiLara, Neliton Ricardo FreitasCosta Gonçalves Portelinha, ThiagoPiña, Carlos IgnacioVerdade, Luciano MartinsANTHROPOGENIC ENVIRONMENTSCROCODILIANSDAILY MOVEMENTRADIOTELEMETRYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Information on the home range and movement patterns of Neotropical crocodilians is scarce for most species, despite being essential for developing management and conservation plans. The broad-snouted caiman (Caiman latirostris) is a Neotropical crocodilian with a wide geographical distribution in South America. This species inhabits artificial reservoirs (e.g., small weirs) in silvicultural areas. However, its use of space in such circumstances is still unknown. The present study aims to estimate home range and movement patterns of the broad-snouted caiman in a silviculture-dominated landscape in São Paulo state, southeastern Brazil. Eight adult caimans (four males and four females) were monitored by radiotelemetry (GPS-UHF system) from February 2010 to October 2011. The collected position points were used to estimate home range sizes and movement patterns. Mean home range size (± SD) of all individuals was 96.6 ± 183.9 ha and 43.2 ± 78.6 ha estimated by Minimum Convex Polygon (MPC) and 95% Kernel Density Estimate methods (KDE), respectively, without difference between the sexes. Individual mean daily movement was 37.6 ± 18.6 m/d, being greater during the reproductive period. The surrounding matrix formed by Eucalyptus plantations was relatively permeable to caiman movement. The present results suggest that the wide variation in the home range size of the broad-snouted caiman could be a result of the space-time distribution of resources and social interactions. Further, variations in environment temperature and reproductive activities can influence the movement pattern of the species. Future studies of crocodilians in agricultural landscapes should prioritize other dimensions possibly related to space use such as agricultural practices of the matrix, water contamination by agrochemicals, and hunting pressures.Fil: Marques, Thiago Simon. Universidade de Sorocaba; BrasilFil: Bassetti, Luís Antonio Bochetti. Universidade de Sao Paulo; BrasilFil: Lara, Neliton Ricardo Freitas. Universidade de Sao Paulo; BrasilFil: Costa Gonçalves Portelinha, Thiago. Universidade Federal do Tocantins; BrasilFil: Piña, Carlos Ignacio. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Proyecto Yacaré; ArgentinaFil: Verdade, Luciano Martins. Universidade de Sao Paulo; BrasilSociedade Brasileira de Herpetologia2020-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/143022Marques, Thiago Simon; Bassetti, Luís Antonio Bochetti; Lara, Neliton Ricardo Freitas; Costa Gonçalves Portelinha, Thiago; Piña, Carlos Ignacio; et al.; Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape; Sociedade Brasileira de Herpetologia; South American Journal of Herpetology; 16; 1; 8-2020; 16-251982-355XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/south-american-journal-of-herpetology/volume-16/issue-1/SAJH-D-18-00052.1/Home-Range-and-Movement-Pattern-of-the-Broad-Snouted-Caiman/10.2994/SAJH-D-18-00052.1.fullinfo:eu-repo/semantics/altIdentifier/doi/10.2994/SAJH-D-18-00052.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:37:21Zoai:ri.conicet.gov.ar:11336/143022instacron: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:34982025-10-15 14:37:21.531CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
title Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
spellingShingle Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
Marques, Thiago Simon
ANTHROPOGENIC ENVIRONMENTS
CROCODILIANS
DAILY MOVEMENT
RADIOTELEMETRY
title_short Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
title_full Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
title_fullStr Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
title_full_unstemmed Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
title_sort Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape
dc.creator.none.fl_str_mv Marques, Thiago Simon
Bassetti, Luís Antonio Bochetti
Lara, Neliton Ricardo Freitas
Costa Gonçalves Portelinha, Thiago
Piña, Carlos Ignacio
Verdade, Luciano Martins
author Marques, Thiago Simon
author_facet Marques, Thiago Simon
Bassetti, Luís Antonio Bochetti
Lara, Neliton Ricardo Freitas
Costa Gonçalves Portelinha, Thiago
Piña, Carlos Ignacio
Verdade, Luciano Martins
author_role author
author2 Bassetti, Luís Antonio Bochetti
Lara, Neliton Ricardo Freitas
Costa Gonçalves Portelinha, Thiago
Piña, Carlos Ignacio
Verdade, Luciano Martins
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv ANTHROPOGENIC ENVIRONMENTS
CROCODILIANS
DAILY MOVEMENT
RADIOTELEMETRY
topic ANTHROPOGENIC ENVIRONMENTS
CROCODILIANS
DAILY MOVEMENT
RADIOTELEMETRY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Information on the home range and movement patterns of Neotropical crocodilians is scarce for most species, despite being essential for developing management and conservation plans. The broad-snouted caiman (Caiman latirostris) is a Neotropical crocodilian with a wide geographical distribution in South America. This species inhabits artificial reservoirs (e.g., small weirs) in silvicultural areas. However, its use of space in such circumstances is still unknown. The present study aims to estimate home range and movement patterns of the broad-snouted caiman in a silviculture-dominated landscape in São Paulo state, southeastern Brazil. Eight adult caimans (four males and four females) were monitored by radiotelemetry (GPS-UHF system) from February 2010 to October 2011. The collected position points were used to estimate home range sizes and movement patterns. Mean home range size (± SD) of all individuals was 96.6 ± 183.9 ha and 43.2 ± 78.6 ha estimated by Minimum Convex Polygon (MPC) and 95% Kernel Density Estimate methods (KDE), respectively, without difference between the sexes. Individual mean daily movement was 37.6 ± 18.6 m/d, being greater during the reproductive period. The surrounding matrix formed by Eucalyptus plantations was relatively permeable to caiman movement. The present results suggest that the wide variation in the home range size of the broad-snouted caiman could be a result of the space-time distribution of resources and social interactions. Further, variations in environment temperature and reproductive activities can influence the movement pattern of the species. Future studies of crocodilians in agricultural landscapes should prioritize other dimensions possibly related to space use such as agricultural practices of the matrix, water contamination by agrochemicals, and hunting pressures.
Fil: Marques, Thiago Simon. Universidade de Sorocaba; Brasil
Fil: Bassetti, Luís Antonio Bochetti. Universidade de Sao Paulo; Brasil
Fil: Lara, Neliton Ricardo Freitas. Universidade de Sao Paulo; Brasil
Fil: Costa Gonçalves Portelinha, Thiago. Universidade Federal do Tocantins; Brasil
Fil: Piña, Carlos Ignacio. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Proyecto Yacaré; Argentina
Fil: Verdade, Luciano Martins. Universidade de Sao Paulo; Brasil
description Information on the home range and movement patterns of Neotropical crocodilians is scarce for most species, despite being essential for developing management and conservation plans. The broad-snouted caiman (Caiman latirostris) is a Neotropical crocodilian with a wide geographical distribution in South America. This species inhabits artificial reservoirs (e.g., small weirs) in silvicultural areas. However, its use of space in such circumstances is still unknown. The present study aims to estimate home range and movement patterns of the broad-snouted caiman in a silviculture-dominated landscape in São Paulo state, southeastern Brazil. Eight adult caimans (four males and four females) were monitored by radiotelemetry (GPS-UHF system) from February 2010 to October 2011. The collected position points were used to estimate home range sizes and movement patterns. Mean home range size (± SD) of all individuals was 96.6 ± 183.9 ha and 43.2 ± 78.6 ha estimated by Minimum Convex Polygon (MPC) and 95% Kernel Density Estimate methods (KDE), respectively, without difference between the sexes. Individual mean daily movement was 37.6 ± 18.6 m/d, being greater during the reproductive period. The surrounding matrix formed by Eucalyptus plantations was relatively permeable to caiman movement. The present results suggest that the wide variation in the home range size of the broad-snouted caiman could be a result of the space-time distribution of resources and social interactions. Further, variations in environment temperature and reproductive activities can influence the movement pattern of the species. Future studies of crocodilians in agricultural landscapes should prioritize other dimensions possibly related to space use such as agricultural practices of the matrix, water contamination by agrochemicals, and hunting pressures.
publishDate 2020
dc.date.none.fl_str_mv 2020-08
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/11336/143022
Marques, Thiago Simon; Bassetti, Luís Antonio Bochetti; Lara, Neliton Ricardo Freitas; Costa Gonçalves Portelinha, Thiago; Piña, Carlos Ignacio; et al.; Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape; Sociedade Brasileira de Herpetologia; South American Journal of Herpetology; 16; 1; 8-2020; 16-25
1982-355X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/143022
identifier_str_mv Marques, Thiago Simon; Bassetti, Luís Antonio Bochetti; Lara, Neliton Ricardo Freitas; Costa Gonçalves Portelinha, Thiago; Piña, Carlos Ignacio; et al.; Home Range and Movement Pattern of the Broad-Snouted Caiman (Caiman latirostris) in a Silviculture Dominated Landscape; Sociedade Brasileira de Herpetologia; South American Journal of Herpetology; 16; 1; 8-2020; 16-25
1982-355X
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://bioone.org/journals/south-american-journal-of-herpetology/volume-16/issue-1/SAJH-D-18-00052.1/Home-Range-and-Movement-Pattern-of-the-Broad-Snouted-Caiman/10.2994/SAJH-D-18-00052.1.full
info:eu-repo/semantics/altIdentifier/doi/10.2994/SAJH-D-18-00052.1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Herpetologia
publisher.none.fl_str_mv Sociedade Brasileira de Herpetologia
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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