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Titolo:
Growth and ageing of feral Xenopus laevis (Daudin) in South Wales, UK
Autore:
Measey, GJ;
Indirizzi:
Univ Bristol, Sch Biol Sci, Bristol BS8 1UG, Avon, England Univ Bristol Bristol Avon England BS8 1UG Bristol BS8 1UG, Avon, England
Titolo Testata:
JOURNAL OF ZOOLOGY
, volume: 254, anno: 2001,
parte:, 4
pagine: 547 - 555
SICI:
0952-8369(200108)254:<547:GAAOFX>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
AFRICAN CLAWED FROGS; BODY SIZE; SKELETOCHRONOLOGY; AMPHIBIANS; CALIFORNIA; MATURITY; ANURA; BUFO; POPULATIONS; PIPIDAE;
Keywords:
African clawed frogs; Xenopus laevis; ecology; growth; invasive amphibians; skeletochronolgy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Measey, GJ Nat Hist Museum, Dept Zool, Cromwell Rd, London SW7 5BD, England Nat Hist Museum Cromwell Rd London England SW7 5BD BD, England
Citazione:
G.J. Measey, "Growth and ageing of feral Xenopus laevis (Daudin) in South Wales, UK", J ZOOL, 254, 2001, pp. 547-555

Abstract

A feral population of African clawed frogs Xenopus laevis from a small pond in South Wales was sampled continuously for 2 years to assess morphometric growth. Toe-clips taken at intervals over a 4-year period were found to contain lines of arrested growth (LAG) which corresponded to each consecutive winter. The first toe-clips revealed a population structure within the pond consisting of a dominant cohort of frogs with one LAG that metamorphosedin 1993, and a few older individuals. Subsequent toe-clips in 1996 and 1998 gave two and four more LAG, respectively. Morphometric growth was found to be restricted to a short growing season, significant differences in the growth rates of males and females being first detected in their third growthseason. Reproductively active frogs were still within their initial periodof growth, suggesting that Xenopus laevis does not conform to the standardenergy resource allocation mechanisms of typical ectotherms.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 00:38:22