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Effect of body size on the long-term reproductive output of eastern Atlantic loggerhead turtles Caretta caretta

dc.contributor.authorMartins, Samir
dc.contributor.authorCardona, L.
dc.contributor.authorAbella, E.
dc.contributor.authorSilva, E.
dc.contributor.authorLoureiro, Nuno de Santos
dc.contributor.authorRoast, M.
dc.contributor.authorMarco, A.
dc.date.accessioned2023-01-11T09:55:24Z
dc.date.available2023-01-11T09:55:24Z
dc.date.issued2022
dc.description.abstractWe assessed the relationship between body size and several important life history parameters to understand the demographic significance of interpopulation variability in the body size of loggerhead turtles Caretta caretta nesting on Boa Vista Island (Cabo Verde). The adult growth rate (0.34 +/- 0.60 cm yr-1), annual mortality rate (0.13, 95% CI: 0.12-0.15) and remigration interval (3.1 +/- 1.2 yr) were independent of curved carapace length (minimum curved carapace length [CCLmin]). Conversely, the body condition index decreased significantly with female CCLmin. The clutch size, mean egg mass, mean hatchling straight carapace length and mean hatchling mass increased significantly with female CCLmin. However, there was no relationship between female size and hatching success. Randomization and bootstrapping were used to incorporate variability when calculating the average individual fecundity over 20 yr, a period that accumulated, on average, 94% of the adult mortality. The overall fecundity during this period increased with carapace length at first maturity (71 cm CCLmin: 815 eggs, 95% CI: 653-863; 80 cm CCLmin: 906 eggs, 95% CI: 822-959; 90 cm CCLmin: 1089 eggs, 95% CI: 926-1415). However, only 8% of the adult females nesting on Boa Vista Island are larger than 90 cm CCLmin, and they produce less than 12% of the total annual egg production. The scarcity of large females might result from a shortage of high-quality foraging grounds where females may reach first sexual maturity at a large carapace length and from the combined effect of a small carapace length at first sexual maturity, low adult somatic growth and high adult mortality.pt_PT
dc.description.sponsorshipGrant No. F12AS00404; Grant No. AO1 [17105]
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3354/esr01198pt_PT
dc.identifier.issn1863-5407
dc.identifier.urihttp://hdl.handle.net/10400.1/18785
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInter Researchpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCabo Verdept_PT
dc.subjectFecunditypt_PT
dc.subjectForaging strategiespt_PT
dc.subjectIntrapopulation variationpt_PT
dc.subjectLoggerhead sea turtlept_PT
dc.subjectWest Africapt_PT
dc.titleEffect of body size on the long-term reproductive output of eastern Atlantic loggerhead turtles Caretta carettapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage189pt_PT
oaire.citation.startPage175pt_PT
oaire.citation.titleEndangered Species Researchpt_PT
oaire.citation.volume48pt_PT
person.familyNameMartins
person.familyNameFigueiredo de Santos Loureiro
person.givenNameSamir
person.givenNameNuno Manuel de
person.identifier.ciencia-idD514-3F01-6DE0
person.identifier.orcid0000-0003-3156-9630
person.identifier.orcid0000-0001-7018-7630
person.identifier.scopus-author-id56423263000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0186e5b6-731a-4c48-b611-e03753374928
relation.isAuthorOfPublicationa281c547-4ec4-4512-ba80-350af27857cf
relation.isAuthorOfPublication.latestForDiscovery0186e5b6-731a-4c48-b611-e03753374928

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