Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon

The purpuse of this study was to investigated the influence of anthropogenic impacts on Podocnemis unifilis nesting on a stretch from Falsino river, with two forest reserves, and one urban area on the Araguari river, state of Amapá, eastern Amazon (Brazil). A total of 180 nests were found, being 89....

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Autores:
Arraes, Débora Regina Santos
Cunha, Helenilza Ferreira Albuquerque
Tavares-Dias, Marcos
Tipo de recurso:
Article of journal
Fecha de publicación:
2016
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/61193
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/61193
http://bdigital.unal.edu.co/60001/
Palabra clave:
57 Ciencias de la vida; Biología / Life sciences; biology
Amazon
eggs
freshwater turtle
neonates
nests
Amazonia
huevos
nidos
recién nacidos
tortuga acuática.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
id UNACIONAL2_ed75cc2a4529453cf3024bcb11dc29a8
oai_identifier_str oai:repositorio.unal.edu.co:unal/61193
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
title Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
spellingShingle Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
57 Ciencias de la vida; Biología / Life sciences; biology
Amazon
eggs
freshwater turtle
neonates
nests
Amazonia
huevos
nidos
recién nacidos
tortuga acuática.
title_short Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
title_full Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
title_fullStr Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
title_full_unstemmed Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
title_sort Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon
dc.creator.fl_str_mv Arraes, Débora Regina Santos
Cunha, Helenilza Ferreira Albuquerque
Tavares-Dias, Marcos
dc.contributor.author.spa.fl_str_mv Arraes, Débora Regina Santos
Cunha, Helenilza Ferreira Albuquerque
Tavares-Dias, Marcos
dc.subject.ddc.spa.fl_str_mv 57 Ciencias de la vida; Biología / Life sciences; biology
topic 57 Ciencias de la vida; Biología / Life sciences; biology
Amazon
eggs
freshwater turtle
neonates
nests
Amazonia
huevos
nidos
recién nacidos
tortuga acuática.
dc.subject.proposal.spa.fl_str_mv Amazon
eggs
freshwater turtle
neonates
nests
Amazonia
huevos
nidos
recién nacidos
tortuga acuática.
description The purpuse of this study was to investigated the influence of anthropogenic impacts on Podocnemis unifilis nesting on a stretch from Falsino river, with two forest reserves, and one urban area on the Araguari river, state of Amapá, eastern Amazon (Brazil). A total of 180 nests were found, being 89.4 % in the forest reserves and only 10.6 % in urban areas. On Falsino river, we observed a spawning pattern, because the number of nests was correlated to the length and width of the nesting locations. On Araguari river, the P. unifilis nests were generally found in areas with surrounding vegetation up to 5 meters in height, minimum distance of 120 meters from residences and immediately or after places of higher exploration of pebbles. Females from Falsino river had smaller eggs, but the neonates were bigger and with higher body condition index than the neonates from Araguari river. About 80 % of the nests were prey, mostly because of the large collection of eggs for feeding. Furthermore, it was found that adult turtle hunting has been intense. Although one of the areas is in forest reserves, the human impacts were similar to those caused in urban areas, indicating the need to implement protection programs for the conservation of P. unifilis.
publishDate 2016
dc.date.issued.spa.fl_str_mv 2016-05-01
dc.date.accessioned.spa.fl_str_mv 2019-07-02T20:41:08Z
dc.date.available.spa.fl_str_mv 2019-07-02T20:41:08Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
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dc.type.content.spa.fl_str_mv Text
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dc.identifier.issn.spa.fl_str_mv ISSN: 1900-1649
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/61193
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/60001/
identifier_str_mv ISSN: 1900-1649
url https://repositorio.unal.edu.co/handle/unal/61193
http://bdigital.unal.edu.co/60001/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv https://revistas.unal.edu.co/index.php/actabiol/article/view/49196
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Acta Biológica Colombiana
Acta Biológica Colombiana
dc.relation.references.spa.fl_str_mv Arraes, Débora Regina Santos and Cunha, Helenilza Ferreira Albuquerque and Tavares-Dias, Marcos (2016) Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon. Acta Biológica Colombiana, 21 (2). pp. 413-421. ISSN 1900-1649
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia - Sede Bogotá - Faculdad de Ciencias - Departamento de Biología
institution Universidad Nacional de Colombia
bitstream.url.fl_str_mv https://repositorio.unal.edu.co/bitstream/unal/61193/1/49196-288476-1-PB.pdf
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bitstream.checksum.fl_str_mv 2665446658b17c48d3afc9165dea33be
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repository.name.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Arraes, Débora Regina Santos0c3bd006-7012-43bb-bbab-84eb32e9a81d300Cunha, Helenilza Ferreira Albuquerque137a9690-e12b-4eb6-a82d-3d8cc5a6cb53300Tavares-Dias, Marcos1b3b7693-ff6f-485c-9654-03ff094c8fc73002019-07-02T20:41:08Z2019-07-02T20:41:08Z2016-05-01ISSN: 1900-1649https://repositorio.unal.edu.co/handle/unal/61193http://bdigital.unal.edu.co/60001/The purpuse of this study was to investigated the influence of anthropogenic impacts on Podocnemis unifilis nesting on a stretch from Falsino river, with two forest reserves, and one urban area on the Araguari river, state of Amapá, eastern Amazon (Brazil). A total of 180 nests were found, being 89.4 % in the forest reserves and only 10.6 % in urban areas. On Falsino river, we observed a spawning pattern, because the number of nests was correlated to the length and width of the nesting locations. On Araguari river, the P. unifilis nests were generally found in areas with surrounding vegetation up to 5 meters in height, minimum distance of 120 meters from residences and immediately or after places of higher exploration of pebbles. Females from Falsino river had smaller eggs, but the neonates were bigger and with higher body condition index than the neonates from Araguari river. About 80 % of the nests were prey, mostly because of the large collection of eggs for feeding. Furthermore, it was found that adult turtle hunting has been intense. Although one of the areas is in forest reserves, the human impacts were similar to those caused in urban areas, indicating the need to implement protection programs for the conservation of P. unifilis.El propósito de este estudio fue investigar la influencia de los impactos antropogénicos en nidos de Podocnemis unifilis en un tramo del Río Falsino, se investigó en dos reservas forestales y tramo urbano del río Araguari, Estado de Amapá, en Amazonia (Brasil). Un total de 180 nidos fueron localizados y 89,4 % estaban en las áreas de reservas forestales, pero sólo el 10,6 % en las zonas urbanas. En el río Falsino, hubo desove patrón, el número de nidos se correlacionó con la longitud y la anchura de los sitios de anidación. En Río Araguari, nidos de P. unifilis se encuentran generalmente en lugares con vegetación circundante de hasta 5 metros de altura, distancia mínima de 120 metros de residencial y de inmediato o después de los lugares de mayor explotación de los guijarros. En el río Falsino, aunque las hembras han demostrado huevos más pequeños, los recién nacidos fueron mayores y la puntuación cuerpo también es mayor que en los recién nacidos del río Araguari. En la región del Río Araguari, aproximadamente el 80 % de los nidos fueron depredados, debido a la gran colección de huevos para la alimentación. Se observó que la presión de caza en las tortugas adultas ha sido intensa. Aunque es una de las áreas a ser bosques protegidos, los impactos humanos fueron similares a los de las zonas urbanas, lo que indica la necesidad de implementar programas de protección para la conservación de P. unifilis.We investigated the influence of anthropogenic impacts on Podocnemis unifilis nesting on a stretch from Falsino river, with two forest reserves, and one urban area on the Araguari river, state of Amapá, eastern Amazon (Brazil). A total of 180 nests was found, being 89.4% in the forest reserves and only 10.6% in urban areas. On Falsino river, we observed a spawning pattern, because the number of nests was correlated to the length and width of the nesting locations. On Araguari river, the P. unifilis nests were generally found in areas with surrounding vegetation up to 5 m in height, minimum distance of 120 m from residences and immediately or after places of higher exploration of pebbles. Females from Falsino river had smaller eggs, but the neonates were bigger and with higher body condition index than the neonates from Araguari river. About 80% of the nests were prey, mostly because of the large collection of eggs for feeding. Furthermore, it was found that adult turtle hunting have been intense. Although one of the areas is in forest reserves, the human impacts were similar to those caused in urban areas, indicating the need to implement protection programs for the conservation of P. unifilis.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Faculdad de Ciencias - Departamento de Biologíahttps://revistas.unal.edu.co/index.php/actabiol/article/view/49196Universidad Nacional de Colombia Revistas electrónicas UN Acta Biológica ColombianaActa Biológica ColombianaArraes, Débora Regina Santos and Cunha, Helenilza Ferreira Albuquerque and Tavares-Dias, Marcos (2016) Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon. Acta Biológica Colombiana, 21 (2). pp. 413-421. ISSN 1900-164957 Ciencias de la vida; Biología / Life sciences; biologyAmazoneggsfreshwater turtleneonatesnestsAmazoniahuevosnidosrecién nacidostortuga acuática.Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian AmazonArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL49196-288476-1-PB.pdfapplication/pdf745569https://repositorio.unal.edu.co/bitstream/unal/61193/1/49196-288476-1-PB.pdf2665446658b17c48d3afc9165dea33beMD51THUMBNAIL49196-288476-1-PB.pdf.jpg49196-288476-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9685https://repositorio.unal.edu.co/bitstream/unal/61193/2/49196-288476-1-PB.pdf.jpg3183a6510f527787c429cc94acfda3e2MD52unal/61193oai:repositorio.unal.edu.co:unal/611932023-04-10 23:05:58.598Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co