Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil

Detalhes bibliográficos
Autor(a) principal: Santos, Armando José Barsante
Data de Publicação: 2008
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/13042
Resumo: Female hawksbill turtles (Eretmochelys imbricata) nesting along the southeastcoastline of Rio Grande do Norte State, Brazil (6º13'40"S, 35º03'05"W) were captured and weighed during the four months from January to April 2007, in the course of the annual egglaying season, which extended from 06 rd November 2006 to 30 rd May 2007. In all, 99 weight measurements were performed. On first contact the females exhibited an average post-oviposition weight of 79.1 kg (range 56.2-98.9 kg, SD = 10.9 kg, n = 44 females). Those individuals which were subsequently recaptured showed a mean weight loss of 1.7 kg (range 0.7-4.5 kg, SD = 1.0 kg, n = 39 sets of measurements on 20 females) in the interval between two consecutive post-ovipositions, separated by a maximum time interval of 17 days. In the cases where the female aborted the nesting process, the pre-oviposition weight was measured. The clutch weight, that is to say, the weight loss between consecutive pre-oviposition and post-oviposition measurements (separated by a maximum time interval of 3 days), was found to be 5.2 kg (range 4.3-6.0 kg, SD = 0.9 kg, n = 6 sets of measurements). This value is significantly higher (t-test, p<0.001) than the loss between two consecutive post-oviposition measurements with the same female. The mean recovery in body weight, that is to say, the average gain in weight between successive post-oviposition and pre-oviposition captures of the same individual (separated by a time interval of 12 to 17 days), was found to be 3.0 kg (range 1.9-4.3 kg, SD = 1.0 kg, n = 4 sets of measurements) Although the small sample size makes it unwise to generalise, the recovery in body weight was found to be always significantly lower (t-test, p<0.005) than the clutch weight. This fact is in agreement with the observed weight loss tendency throughout the breeding season for this species. Considering the clutch weight and the internidal recovery in body weight we found that the total weight loss of the adult hawksbill females after three to five nesting events varied from 10.4% (range 8.7-11.9%, SD = 1.6%, n = 3) to 14.1% (range 11.8-15.4%, SD = 1.3%, n = 6) in relation to their initial pre-oviposition weight. If there were no body weight recovery during the internesting interval we estimate that a female that nests three to five times in the course of the season would lose from 19% to 31% of its initial weight. We emphasise that our clutch weight estimate was performed by weighing the females and not by multiplying the number of eggs in the nest by their average unit weight. In this way, our measurements take into account the loss of liquid during the oviposition. Despite the unequivocal evidence of body weight recovery during the internidal interval, it is not clear if the cause of this process is rehydration or feeding
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spelling Santos, Armando José Barsantehttp://lattes.cnpq.br/9656844325582089http://lattes.cnpq.br/6388455734228621Corso, Gilbertohttp://lattes.cnpq.br/0274040885278760Pichorim, Maurohttp://lattes.cnpq.br/5696697654544552Carvalho, Celso Morato dehttp://lattes.cnpq.br/9951874598527540Freire, Eliza Maria Xavier2014-12-17T14:10:17Z2009-03-132014-12-17T14:10:17Z2008-05-27SANTOS, Armando José Barsante. Change in the body weight of adult female hawksbill turtles during the 2006/2007 nesting season, on the southeast coast of Rio Grande do Norte state, Brazil. 2008. 45 f. Dissertação (Mestrado em Biodiversidade; Biologia Estrutural e Funcional.) - Universidade Federal do Rio Grande do Norte, Natal, 2008.https://repositorio.ufrn.br/jspui/handle/123456789/13042Female hawksbill turtles (Eretmochelys imbricata) nesting along the southeastcoastline of Rio Grande do Norte State, Brazil (6º13'40"S, 35º03'05"W) were captured and weighed during the four months from January to April 2007, in the course of the annual egglaying season, which extended from 06 rd November 2006 to 30 rd May 2007. In all, 99 weight measurements were performed. On first contact the females exhibited an average post-oviposition weight of 79.1 kg (range 56.2-98.9 kg, SD = 10.9 kg, n = 44 females). Those individuals which were subsequently recaptured showed a mean weight loss of 1.7 kg (range 0.7-4.5 kg, SD = 1.0 kg, n = 39 sets of measurements on 20 females) in the interval between two consecutive post-ovipositions, separated by a maximum time interval of 17 days. In the cases where the female aborted the nesting process, the pre-oviposition weight was measured. The clutch weight, that is to say, the weight loss between consecutive pre-oviposition and post-oviposition measurements (separated by a maximum time interval of 3 days), was found to be 5.2 kg (range 4.3-6.0 kg, SD = 0.9 kg, n = 6 sets of measurements). This value is significantly higher (t-test, p<0.001) than the loss between two consecutive post-oviposition measurements with the same female. The mean recovery in body weight, that is to say, the average gain in weight between successive post-oviposition and pre-oviposition captures of the same individual (separated by a time interval of 12 to 17 days), was found to be 3.0 kg (range 1.9-4.3 kg, SD = 1.0 kg, n = 4 sets of measurements) Although the small sample size makes it unwise to generalise, the recovery in body weight was found to be always significantly lower (t-test, p<0.005) than the clutch weight. This fact is in agreement with the observed weight loss tendency throughout the breeding season for this species. Considering the clutch weight and the internidal recovery in body weight we found that the total weight loss of the adult hawksbill females after three to five nesting events varied from 10.4% (range 8.7-11.9%, SD = 1.6%, n = 3) to 14.1% (range 11.8-15.4%, SD = 1.3%, n = 6) in relation to their initial pre-oviposition weight. If there were no body weight recovery during the internesting interval we estimate that a female that nests three to five times in the course of the season would lose from 19% to 31% of its initial weight. We emphasise that our clutch weight estimate was performed by weighing the females and not by multiplying the number of eggs in the nest by their average unit weight. In this way, our measurements take into account the loss of liquid during the oviposition. Despite the unequivocal evidence of body weight recovery during the internidal interval, it is not clear if the cause of this process is rehydration or feedingOs dados que compõem esta dissertação, estão organizados em dois capítulos que correspondem a dois artigos científicos a serem submetidos à publicação. O primeiro, Body weight and energy budget of gravid hawksbill turtles (Eretmochelys imbricata) during the nest season está sendo submetido ao Journal of Herpetology e o segundo intitulado Preferências individuais por local de desova em Eretmochelys imbricata (LINNAEUS, 1756), na Praia de Pipa, Tibau do Sul, RNapplication/pdfporUniversidade Federal do Rio Grande do NortePrograma de Pós-Graduação em Ciências BiológicasUFRNBRBiodiversidade; Biologia Estrutural e Funcional.Eretmochelys imbricataCheloniidaePesoBalanço energéticoPreferências individuaisEretmochelys imbricataCheloniidaeWheightEnergy balanceIndividual preferencesCNPQ::CIENCIAS BIOLOGICASAspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, BrasilChange in the body weight of adult female hawksbill turtles during the 2006/2007 nesting season, on the southeast coast of Rio Grande do Norte state, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNTEXTArmandoJBS.pdf.txtArmandoJBS.pdf.txtExtracted texttext/plain93373https://repositorio.ufrn.br/bitstream/123456789/13042/6/ArmandoJBS.pdf.txtb5f4b0c3af9180b231a1b1469983b311MD56AspectosBiologiaReprodutiva_Santos_2008.pdf.txtAspectosBiologiaReprodutiva_Santos_2008.pdf.txtExtracted texttext/plain93373https://repositorio.ufrn.br/bitstream/123456789/13042/8/AspectosBiologiaReprodutiva_Santos_2008.pdf.txtb5f4b0c3af9180b231a1b1469983b311MD58THUMBNAILArmandoJBS.pdf.jpgArmandoJBS.pdf.jpgIM Thumbnailimage/jpeg3245https://repositorio.ufrn.br/bitstream/123456789/13042/7/ArmandoJBS.pdf.jpg6852f554bcbf6abddd101cc1a0bd792eMD57AspectosBiologiaReprodutiva_Santos_2008.pdf.jpgAspectosBiologiaReprodutiva_Santos_2008.pdf.jpgIM Thumbnailimage/jpeg3245https://repositorio.ufrn.br/bitstream/123456789/13042/9/AspectosBiologiaReprodutiva_Santos_2008.pdf.jpg6852f554bcbf6abddd101cc1a0bd792eMD59ORIGINALAspectosBiologiaReprodutiva_Santos_2008.pdfapplication/pdf422054https://repositorio.ufrn.br/bitstream/123456789/13042/1/AspectosBiologiaReprodutiva_Santos_2008.pdff4b2cbf7617b504553ea5eac8f22b533MD51123456789/130422019-02-09 01:21:41.549oai:https://repositorio.ufrn.br:123456789/13042Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2019-02-09T04:21:41Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.por.fl_str_mv Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
dc.title.alternative.eng.fl_str_mv Change in the body weight of adult female hawksbill turtles during the 2006/2007 nesting season, on the southeast coast of Rio Grande do Norte state, Brazil
title Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
spellingShingle Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
Santos, Armando José Barsante
Eretmochelys imbricata
Cheloniidae
Peso
Balanço energético
Preferências individuais
Eretmochelys imbricata
Cheloniidae
Wheight
Energy balance
Individual preferences
CNPQ::CIENCIAS BIOLOGICAS
title_short Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
title_full Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
title_fullStr Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
title_full_unstemmed Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
title_sort Aspectos da biologia reprodutiva de Eretmochelys imbricata (testudines, cheloniidae) no litoral sul do Rio Grande do Norte, Brasil
author Santos, Armando José Barsante
author_facet Santos, Armando José Barsante
author_role author
dc.contributor.authorID.por.fl_str_mv
dc.contributor.authorLattes.por.fl_str_mv http://lattes.cnpq.br/9656844325582089
dc.contributor.advisorID.por.fl_str_mv
dc.contributor.advisorLattes.por.fl_str_mv http://lattes.cnpq.br/6388455734228621
dc.contributor.referees1.pt_BR.fl_str_mv Corso, Gilberto
dc.contributor.referees1ID.por.fl_str_mv
dc.contributor.referees1Lattes.por.fl_str_mv http://lattes.cnpq.br/0274040885278760
dc.contributor.referees2.pt_BR.fl_str_mv Pichorim, Mauro
dc.contributor.referees2ID.por.fl_str_mv
dc.contributor.referees2Lattes.por.fl_str_mv http://lattes.cnpq.br/5696697654544552
dc.contributor.referees3.pt_BR.fl_str_mv Carvalho, Celso Morato de
dc.contributor.referees3ID.por.fl_str_mv
dc.contributor.referees3Lattes.por.fl_str_mv http://lattes.cnpq.br/9951874598527540
dc.contributor.author.fl_str_mv Santos, Armando José Barsante
dc.contributor.advisor1.fl_str_mv Freire, Eliza Maria Xavier
contributor_str_mv Freire, Eliza Maria Xavier
dc.subject.por.fl_str_mv Eretmochelys imbricata
Cheloniidae
Peso
Balanço energético
Preferências individuais
topic Eretmochelys imbricata
Cheloniidae
Peso
Balanço energético
Preferências individuais
Eretmochelys imbricata
Cheloniidae
Wheight
Energy balance
Individual preferences
CNPQ::CIENCIAS BIOLOGICAS
dc.subject.eng.fl_str_mv Eretmochelys imbricata
Cheloniidae
Wheight
Energy balance
Individual preferences
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS BIOLOGICAS
description Female hawksbill turtles (Eretmochelys imbricata) nesting along the southeastcoastline of Rio Grande do Norte State, Brazil (6º13'40"S, 35º03'05"W) were captured and weighed during the four months from January to April 2007, in the course of the annual egglaying season, which extended from 06 rd November 2006 to 30 rd May 2007. In all, 99 weight measurements were performed. On first contact the females exhibited an average post-oviposition weight of 79.1 kg (range 56.2-98.9 kg, SD = 10.9 kg, n = 44 females). Those individuals which were subsequently recaptured showed a mean weight loss of 1.7 kg (range 0.7-4.5 kg, SD = 1.0 kg, n = 39 sets of measurements on 20 females) in the interval between two consecutive post-ovipositions, separated by a maximum time interval of 17 days. In the cases where the female aborted the nesting process, the pre-oviposition weight was measured. The clutch weight, that is to say, the weight loss between consecutive pre-oviposition and post-oviposition measurements (separated by a maximum time interval of 3 days), was found to be 5.2 kg (range 4.3-6.0 kg, SD = 0.9 kg, n = 6 sets of measurements). This value is significantly higher (t-test, p<0.001) than the loss between two consecutive post-oviposition measurements with the same female. The mean recovery in body weight, that is to say, the average gain in weight between successive post-oviposition and pre-oviposition captures of the same individual (separated by a time interval of 12 to 17 days), was found to be 3.0 kg (range 1.9-4.3 kg, SD = 1.0 kg, n = 4 sets of measurements) Although the small sample size makes it unwise to generalise, the recovery in body weight was found to be always significantly lower (t-test, p<0.005) than the clutch weight. This fact is in agreement with the observed weight loss tendency throughout the breeding season for this species. Considering the clutch weight and the internidal recovery in body weight we found that the total weight loss of the adult hawksbill females after three to five nesting events varied from 10.4% (range 8.7-11.9%, SD = 1.6%, n = 3) to 14.1% (range 11.8-15.4%, SD = 1.3%, n = 6) in relation to their initial pre-oviposition weight. If there were no body weight recovery during the internesting interval we estimate that a female that nests three to five times in the course of the season would lose from 19% to 31% of its initial weight. We emphasise that our clutch weight estimate was performed by weighing the females and not by multiplying the number of eggs in the nest by their average unit weight. In this way, our measurements take into account the loss of liquid during the oviposition. Despite the unequivocal evidence of body weight recovery during the internidal interval, it is not clear if the cause of this process is rehydration or feeding
publishDate 2008
dc.date.issued.fl_str_mv 2008-05-27
dc.date.available.fl_str_mv 2009-03-13
2014-12-17T14:10:17Z
dc.date.accessioned.fl_str_mv 2014-12-17T14:10:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
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status_str publishedVersion
dc.identifier.citation.fl_str_mv SANTOS, Armando José Barsante. Change in the body weight of adult female hawksbill turtles during the 2006/2007 nesting season, on the southeast coast of Rio Grande do Norte state, Brazil. 2008. 45 f. Dissertação (Mestrado em Biodiversidade; Biologia Estrutural e Funcional.) - Universidade Federal do Rio Grande do Norte, Natal, 2008.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/13042
identifier_str_mv SANTOS, Armando José Barsante. Change in the body weight of adult female hawksbill turtles during the 2006/2007 nesting season, on the southeast coast of Rio Grande do Norte state, Brazil. 2008. 45 f. Dissertação (Mestrado em Biodiversidade; Biologia Estrutural e Funcional.) - Universidade Federal do Rio Grande do Norte, Natal, 2008.
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dc.publisher.department.fl_str_mv Biodiversidade; Biologia Estrutural e Funcional.
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