Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/15154 |
Resumo: | Phrynops geoffroanus is a testudine of the family Chelidae that has a wide distribution. However, there are gaps in the knowledge of its biology. This study aimed to characterize demographically and morphometrically a population of Phrynops geoffroanus in an ephemeral water reservoir in a semi-arid area of Paraíba, in the period from April 2016 to March 2017. The individuals were captured manually and by hoop-net trap. Data on size distribution were described by mean and standard deviation. Size and weight were compared between sexes and capture methods using a MANOVA. Sex ratio was compared between capture methods using Pearson's chi-squared test. Population density and biomass were calculated. The number of animals captured was grouped into two shifts and compared. Throughout the year, 113 individuals of P. geoffroanus were captured in the reservoir, with a population of 43.4% males, 47.8% females and 8.8% juveniles, with a density of at least 41.8 individuals / ha and biomass of 33.05kg / ha. There is no significant relationship between the amount of animals captured and the amount of rainfall during the period sampled. Due mainly to the ephemerality of the aquatic environments of the Caatinga and the unpredictability of rainfall in this biome, the populations of aquatic species show large variations in population and in their biological activities. Further studies are needed to fill several gaps in the knowledge of the natural history of Caatinga testudines. |
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Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern BrazilAspectos ecológicos de una población de Phrynops geoffroanus (Schweigger, 1812) en una zona semiárida del nordeste de BrasilAspectos ecológicos de uma população de Phrynops geoffroanus (Schweigger, 1812) em uma área semiárida do Nordeste do BrasilTortuga; Morfometría; Dimorfismo sexual; Demografía.TortugaMorfometríaDimorfismo sexualDemografía.Geoffroy's side-necked turtleGeoffroy's side-necked turtle; Morphometry; Sexual dimorphism; Demography.MorphometrySexual dimorphismDemography.Cágado-de-barbicha; Morfometria; Dimorfismo sexual; Demografia.Cágado-de-barbichaMorfometriaDimorfismo sexualDemografia.Phrynops geoffroanus is a testudine of the family Chelidae that has a wide distribution. However, there are gaps in the knowledge of its biology. This study aimed to characterize demographically and morphometrically a population of Phrynops geoffroanus in an ephemeral water reservoir in a semi-arid area of Paraíba, in the period from April 2016 to March 2017. The individuals were captured manually and by hoop-net trap. Data on size distribution were described by mean and standard deviation. Size and weight were compared between sexes and capture methods using a MANOVA. Sex ratio was compared between capture methods using Pearson's chi-squared test. Population density and biomass were calculated. The number of animals captured was grouped into two shifts and compared. Throughout the year, 113 individuals of P. geoffroanus were captured in the reservoir, with a population of 43.4% males, 47.8% females and 8.8% juveniles, with a density of at least 41.8 individuals / ha and biomass of 33.05kg / ha. There is no significant relationship between the amount of animals captured and the amount of rainfall during the period sampled. Due mainly to the ephemerality of the aquatic environments of the Caatinga and the unpredictability of rainfall in this biome, the populations of aquatic species show large variations in population and in their biological activities. Further studies are needed to fill several gaps in the knowledge of the natural history of Caatinga testudines.Phrynops geoffroanus es un testudino de la familia Chelidae que tiene una amplia distribución. Sin embargo, existen lagunas en el conocimiento de su biología. Este estudio tuvo como objetivo caracterizar demográfica y morfométricamente una población de Phrynops geoffroanus en un embalse de agua efímera en una zona semiárida de Paraíba, desde abril de 2016 hasta marzo de 2017. Los individuos fueron capturados manualmente y mediante una trampa llamada "covo". Los datos sobre la distribución del tamaño se describieron mediante la media y la desviación estándar. La talla y el peso se compararon entre sexos y métodos de captura mediante un MANOVA. La proporción de sexos se comparó entre los métodos de captura mediante la prueba de chi-cuadrado de Pearson. Se calculó la densidad de población y la biomasa. El número de animales capturados se agrupó en dos turnos y se comparó. Fueron capturados 113 individuos de P. geoffroannus en el embalse, 43,4% de machos, 47,8% de hembras y 8,8% de juveniles, con una densidad de al menos 41,8 individuos/ha y una biomasa de 33,05kg/ha. No existe una relación significativa entre la cantidad de animales capturados y la cantidad de precipitaciones durante el periodo muestreado. Debido principalmente a lo efímero de los medios acuáticos de la Caatinga y a la imprevisibilidad de las precipitaciones en este bioma, las poblaciones de especies acuáticas presentan grandes variaciones poblacionales y en sus actividades biológicas. Se necesitan más estudios para llenar varias lagunas en el conocimiento de la historia natural de los testudines de Caatinga.Phrynops geoffroanus é um testudine da família Chelidae que possui uma ampla distribuição. No entanto, existem lacunas no conhecimento de sua biologia. Este estudo teve como objetivo caracterizar demográfica e morfometricamente uma população de Phrynops geoffroanus em um reservatório de água efêmero em uma área semiárida da Paraíba, no período de abril de 2016 a março de 2017. Os indivíduos foram capturados manualmente e por armadilha denominada “covo”. Os dados sobre a distribuição do tamanho foram descritos por média e desvio padrão. O tamanho e o peso foram comparados entre os sexos e os métodos de captura usando uma MANOVA. A proporção sexual foi comparada entre os métodos de captura usando o teste Qui-quadrado de Pearson. A densidade populacional e a biomassa foram calculadas. O número de animais capturados foi agrupado em dois turnos e comparado. Ao longo do ano, foram capturados 113 indivíduos de P. geoffroanus no reservatório, com população de 43,4% machos, 47,8% fêmeas e 8,8% de juvenis, com densidade de pelo menos 41,8 indivíduos / ha e biomassa de 33,05kg / ha. Não há relação significativa entre a quantidade de animais capturados e a quantidade de chuva durante o período amostrado. Devido principalmente à efemeridade dos ambientes aquáticos da Caatinga e à imprevisibilidade das chuvas desse bioma, as populações de espécies aquáticas apresentam grandes variações populacionais e em suas atividades biológicas. Outros estudos são necessários para preencher várias lacunas no conhecimento da história natural dos testudines da Caatinga.Research, Society and Development2021-06-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1515410.33448/rsd-v10i7.15154Research, Society and Development; Vol. 10 No. 7; e9510715154Research, Society and Development; Vol. 10 Núm. 7; e9510715154Research, Society and Development; v. 10 n. 7; e95107151542525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/15154/14574Copyright (c) 2021 Marcela Meira Ramos Abrantes; Jéssica Araújo Pereira; Arthur Willian de Lima Brasil; Aline Raiane de Souza; Danielly Fernanda de Assis Dantas; Paulo Henrique Izidro de Brito; Stephenson Hallison Formiga Abrantes; Daniel Lopes Araújo; Geraldo Jorge Barbosa de Mourahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAbrantes, Marcela Meira Ramos Pereira, Jéssica Araújo Brasil, Arthur Willian de Lima Souza, Aline Raiane de Dantas, Danielly Fernanda de Assis Brito, Paulo Henrique Izidro de Abrantes, Stephenson Hallison Formiga Araújo, Daniel Lopes Moura, Geraldo Jorge Barbosa de 2021-07-18T21:07:03Zoai:ojs.pkp.sfu.ca:article/15154Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:36:03.023707Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil Aspectos ecológicos de una población de Phrynops geoffroanus (Schweigger, 1812) en una zona semiárida del nordeste de Brasil Aspectos ecológicos de uma população de Phrynops geoffroanus (Schweigger, 1812) em uma área semiárida do Nordeste do Brasil |
title |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil |
spellingShingle |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil Abrantes, Marcela Meira Ramos Tortuga; Morfometría; Dimorfismo sexual; Demografía. Tortuga Morfometría Dimorfismo sexual Demografía. Geoffroy's side-necked turtle Geoffroy's side-necked turtle; Morphometry; Sexual dimorphism; Demography. Morphometry Sexual dimorphism Demography. Cágado-de-barbicha; Morfometria; Dimorfismo sexual; Demografia. Cágado-de-barbicha Morfometria Dimorfismo sexual Demografia. |
title_short |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil |
title_full |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil |
title_fullStr |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil |
title_full_unstemmed |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil |
title_sort |
Ecological aspects of a population of Phrynops geoffroanus (Schweigger, 1812) in a semi-arid area of Northeastern Brazil |
author |
Abrantes, Marcela Meira Ramos |
author_facet |
Abrantes, Marcela Meira Ramos Pereira, Jéssica Araújo Brasil, Arthur Willian de Lima Souza, Aline Raiane de Dantas, Danielly Fernanda de Assis Brito, Paulo Henrique Izidro de Abrantes, Stephenson Hallison Formiga Araújo, Daniel Lopes Moura, Geraldo Jorge Barbosa de |
author_role |
author |
author2 |
Pereira, Jéssica Araújo Brasil, Arthur Willian de Lima Souza, Aline Raiane de Dantas, Danielly Fernanda de Assis Brito, Paulo Henrique Izidro de Abrantes, Stephenson Hallison Formiga Araújo, Daniel Lopes Moura, Geraldo Jorge Barbosa de |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Abrantes, Marcela Meira Ramos Pereira, Jéssica Araújo Brasil, Arthur Willian de Lima Souza, Aline Raiane de Dantas, Danielly Fernanda de Assis Brito, Paulo Henrique Izidro de Abrantes, Stephenson Hallison Formiga Araújo, Daniel Lopes Moura, Geraldo Jorge Barbosa de |
dc.subject.por.fl_str_mv |
Tortuga; Morfometría; Dimorfismo sexual; Demografía. Tortuga Morfometría Dimorfismo sexual Demografía. Geoffroy's side-necked turtle Geoffroy's side-necked turtle; Morphometry; Sexual dimorphism; Demography. Morphometry Sexual dimorphism Demography. Cágado-de-barbicha; Morfometria; Dimorfismo sexual; Demografia. Cágado-de-barbicha Morfometria Dimorfismo sexual Demografia. |
topic |
Tortuga; Morfometría; Dimorfismo sexual; Demografía. Tortuga Morfometría Dimorfismo sexual Demografía. Geoffroy's side-necked turtle Geoffroy's side-necked turtle; Morphometry; Sexual dimorphism; Demography. Morphometry Sexual dimorphism Demography. Cágado-de-barbicha; Morfometria; Dimorfismo sexual; Demografia. Cágado-de-barbicha Morfometria Dimorfismo sexual Demografia. |
description |
Phrynops geoffroanus is a testudine of the family Chelidae that has a wide distribution. However, there are gaps in the knowledge of its biology. This study aimed to characterize demographically and morphometrically a population of Phrynops geoffroanus in an ephemeral water reservoir in a semi-arid area of Paraíba, in the period from April 2016 to March 2017. The individuals were captured manually and by hoop-net trap. Data on size distribution were described by mean and standard deviation. Size and weight were compared between sexes and capture methods using a MANOVA. Sex ratio was compared between capture methods using Pearson's chi-squared test. Population density and biomass were calculated. The number of animals captured was grouped into two shifts and compared. Throughout the year, 113 individuals of P. geoffroanus were captured in the reservoir, with a population of 43.4% males, 47.8% females and 8.8% juveniles, with a density of at least 41.8 individuals / ha and biomass of 33.05kg / ha. There is no significant relationship between the amount of animals captured and the amount of rainfall during the period sampled. Due mainly to the ephemerality of the aquatic environments of the Caatinga and the unpredictability of rainfall in this biome, the populations of aquatic species show large variations in population and in their biological activities. Further studies are needed to fill several gaps in the knowledge of the natural history of Caatinga testudines. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/15154 10.33448/rsd-v10i7.15154 |
url |
https://rsdjournal.org/index.php/rsd/article/view/15154 |
identifier_str_mv |
10.33448/rsd-v10i7.15154 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/15154/14574 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 7; e9510715154 Research, Society and Development; Vol. 10 Núm. 7; e9510715154 Research, Society and Development; v. 10 n. 7; e9510715154 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052676814405632 |