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dc.contributor.author
Sinsch, U.
dc.contributor.author
Marangoni, Federico
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dc.contributor.author
Oromi, N.
dc.contributor.author
Leskovar, C.
dc.contributor.author
Sanuy, D.
dc.contributor.author
Tejedo, M.
dc.date.available
2018-08-29T19:59:29Z
dc.date.issued
2010-08
dc.identifier.citation
Sinsch, U.; Marangoni, Federico; Oromi, N.; Leskovar, C.; Sanuy, D.; et al.; Proximate mechanisms determining size variability in natterjack toads; Wiley Blackwell Publishing, Inc; Journal Of Zoology; 281; 4; 8-2010; 272-281
dc.identifier.issn
0952-8369
dc.identifier.uri
http://hdl.handle.net/11336/57579
dc.description.abstract
In the toad Bufo calamita, among-population variation of size follows roughly a converse Bergmann cline, but populations exist that do not fit this pattern. We propose that latitudinal body size variation is a byproduct of adaptive covariation among the life-history traits juvenile growth rate, longevity and lifetime fecundity. We choose five populations (two in Andalusia, two in Catalonia and one in Rhineland-Palatinate) representing a variation of adult size from 39 mm to 95 mm snout-vent length, a latitudinal gradient from 37 to 50° and an altitudinal gradient from sea level to 420 m. Skeletochronology was used to estimate the age-related life-history traits of 313 toads and their lifetime pattern of growth. At southern latitudes, toads matured and reproduced earlier than those at northern latitudes, but had a reduced potential reproductive lifespan due to lower longevity. Age-adjusted adult size depended mainly on the size achieved between metamorphosis and first hibernation or aestivation, which in turn was influenced by local factors. We propose that first-year size corresponds to the duration of the aboveground activity period, temperature during the activity period and the type of shelter sites and hibernacula available in the habitat. After attaining sexual maturity, the growth rates did not differ among populations. Interactions of multiple environmental factors during the first year of life determine age at maturity, adult size and size variation among populations. Local body size and potential reproductive lifespan covary to optimize lifetime fecundity throughout the geographical range. The presence of a small-sized population in southern Spain does not fit the pattern predicted by a converse Bergmann cline, but is compatible with the hypothesis that body size variation among B. calamita populations may be the evolutionary byproduct of optimized lifetime fecundity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Age at Maturity
dc.subject
Amphibia
dc.subject
Anura
dc.subject
Bergmann'S Rule
dc.subject
Life-History Traits
dc.subject
Longevity
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Potential Reproductive Lifespan
dc.subject
Skeletochronology
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Proximate mechanisms determining size variability in natterjack toads
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-17T19:00:44Z
dc.identifier.eissn
1469-7998
dc.journal.volume
281
dc.journal.number
4
dc.journal.pagination
272-281
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Sinsch, U.. Universitat Koblenz; Alemania
dc.description.fil
Fil: Marangoni, Federico. Universidad Nacional de Misiones; Argentina. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Oromi, N.. Universidad de Lleida; España
dc.description.fil
Fil: Leskovar, C.. Universitat Koblenz; Alemania
dc.description.fil
Fil: Sanuy, D.. Consejo Superior de Investigaciones Científicas. Estación Biológica de Doñana; España
dc.description.fil
Fil: Tejedo, M.. Universidad de Lleida; España
dc.journal.title
Journal Of Zoology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/j.1469-7998.2010.00702.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1111/j.1469-7998.2010.00702.x
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