Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/31723
DC FieldValueLanguage
dc.contributor.authorAbella Pérez, Elenaen_US
dc.contributor.authorGarcía Cerdá, Rosa Maríaen_US
dc.contributor.authorMarco, Adolfoen_US
dc.date.accessioned2018-03-06T14:38:43Z-
dc.date.available2018-03-06T14:38:43Z-
dc.date.issued2017en_US
dc.identifier.issn2255-1468en_US
dc.identifier.urihttp://hdl.handle.net/10553/31723-
dc.description.abstractEgg fertilization rate is a defining event in the life history of oviparous species. However, for many terrestrial oviparous species, this parameter is only estimated after hatching and emergence of hatchlings, by studying evidence of embryonic development in unhatched eggs. We compared the accuracy of this method with a second technique based on the careful excavation of sea turtle nests within the first 96 hours of oviposition and calculating the proportion of alive eggs, where a clear white spot is externally visible in the shell. Both methods underestimate the fertility rate but we are not aware of any other alternative on‐invasive technique. The study was conducted in a nest‐ ing population of loggerhead turtles (Care tta care tta) at Boa Vista Island (Republic of Cabo Verde). We found significant differences in the estimation of fertilization rate between both techniques. When inspecting eggs after hatching, researchers significantly overestimated the number of unfer‐ tilized eggs and this calculation was not correlated with the estimation based on examination of eggs soon after oviposition. The first estimate was not correlated with hatching success or hatch‐ ling phenotype. There was no relationship between the number of viable embryos at oviposition and the hatching success and the hatchling’s phenotype. The absence of embryo or its early death had no effect on survival of developing embryos within a nest. Fertilization rate in loggerheads did not show spatial or temporal variation during nesting season. We suggest the implementation in sea turtle nesting monitoring programs of annual less‐invasive estimation of egg fertilization rate based on the excavation of a sample of representative nests immediately after the formation of the white spot in the shell of developing embryos.en_US
dc.languageengen_US
dc.relation.ispartofBasic and Applied Herpetologyen_US
dc.sourceBasic and Applied Herpetology [ ISSN 2255-1468], v. 31, p. 33-44en_US
dc.subject2401 Biología animal (zoología)en_US
dc.subject240116 Herpetologíaen_US
dc.subject240107 Embriología animalen_US
dc.subject.otherEmbryonic developmenten_US
dc.subject.otherFertilization rateen_US
dc.subject.otherLoggerhead turtleen_US
dc.subject.otherReproductionen_US
dc.titleEstimating the fertilization rate of sea turtle nests: Comparison of two techniquesen_US
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticleen_US
dc.identifier.doi10.11160/bah.57
dc.identifier.scopus85036534818
dc.identifier.urlhttp://api.elsevier.com/content/abstract/scopus_id/85036534818-
dc.contributor.orcid#NODATA#en
dc.contributor.orcid#NODATA#en
dc.contributor.orcid#NODATA#en
dc.contributor.authorscopusid57207554402
dc.contributor.authorscopusid56586012000
dc.contributor.authorscopusid57198436419
dc.identifier.eissn2255-1476-
dc.description.lastpage44-
dc.description.firstpage33-
dc.relation.volume31-
dc.investigacionCienciasen_US
dc.source.typearen
dc.type2Artículoen_US
dc.date.coverdateEnero 2017
dc.identifier.ulpgces
item.fulltextCon texto completo-
item.grantfulltextopen-
Appears in Collections:Artículos
Thumbnail
Adobe PDF (573,85 kB)
Show simple item record

SCOPUSTM   
Citations

2
checked on Nov 29, 2020

Page view(s)

15
checked on Nov 29, 2020

Download(s)

22
checked on Nov 29, 2020

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.