Demographic Traits Variation in a Pyrenean Newt (Calotriton asper) among Lacustrine and Stream Populations
| Autor: | Neus Oromi, Fèlix Amat, Sebastià Camarasa, Delfi Sanuy |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Calotriton asper
demography media_common.quotation_subject Population Zoology age structure Biology Age structure Life history theory Evolution and body size Skeletochronology Sexual maturity habitat type Variability education lcsh:QH301-705.5 Nature and Landscape Conservation media_common Demography Facultative education.field_of_study Ecology variability Ecological Modeling evolution and body size Longevity biology.organism_classification Habitat type Agricultural and Biological Sciences (miscellaneous) Sexual dimorphism lcsh:Biology (General) |
| Zdroj: | Diversity, Vol 12, Iss 471, p 471 (2020) Recercat: Dipósit de la Recerca de Catalunya Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) Repositorio Abierto de la UdL Universitad de Lleida Recercat. Dipósit de la Recerca de Catalunya instname |
| ISSN: | 1424-2818 |
| Popis: | Demographic traits were analyzed in the Pyrenean brook newt (Calotriton asper) to evaluate whether its variability responds to the adaptation to the different habitats. In this study, life history traits of Calotriton asper were studied in nine populations living in two different kinds of habitats in the Pyrenees mountains: lakes and streams. Skeletochronology was used to determine age structure and different traits such as age at maturity and longevity. Age structure was different between populations and sexes. The two lacustrine populations, with facultative pedomorphosis, attained their maturity earlier. Age at sexual maturity ranged from 4 to 9 years and in some populations was similar between sexes while in others, females matured at younger ages than males. Maximum longevity varied from 7 to 35 years among populations and was correlated with the age at sexual maturity. Body size differed among populations, was sexually dimorphic, and this disparity was not related to the kind of habitat. The maximum size was found in the lacustrine population but exhibited high variation between populations. The results obtained show a significant variability between sexes and populations, in age and body size structure of Calotriton asper that did not depend on the habitat. This research was funded by the Biodiversity Conservation Plan of ENDESA, S.A. (ENEL Group). |
| Databáze: | OpenAIRE |
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