ORBi: Denoël Mathieu - The effect of food on growth and metamorphosis of paedomorphs in Triturus alpestris apuanus

Reference : The effect of food on growth and metamorphosis of paedomorphs in Triturus alpestris apua...


	Document type :	Scientific journals : Article
	Discipline(s) :	Life sciences : Aquatic sciences & oceanology Life sciences : Environmental sciences & ecology Life sciences : Zoology
	To cite this reference:	http://hdl.handle.net/2268/2975

Title :	The effect of food on growth and metamorphosis of paedomorphs in Triturus alpestris apuanus
Language :	English
Author, co-author :	Denoël, Mathieu [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
	Poncin, Pascal [Université de Liège - ULg > > Biologie du comportement - Ethologie et psychologie animale >]
Publication date :	2001
Journal title :	Archiv für Hydrobiologie
Publisher :	E Schweizerbartsche Verlags
Volume :	152
Issue/season :	4
Pages :	661-670
Audience :	International
ISSN :	0003-9136
City :	Stuttgart
Country :	Germany
Keywords :	[en] Mesotriton alpestris ; Paedomorphosis ; Metamorphosis ; Polyphenism ; Food level ; Phenotypic plasticity ; Food ressources ; Proximate causes ; Growth ; Body weight ; Ichthyosaura alpestris ; Alpine newt ; Body mass ; Feeding ; Body size
	[fr] Metamorphose ; Pédomorphose ; Triton alpestre ; Triturus ; Lac de la Cabane ; Resources ; Alimentation ; Croissance
Abstract :	[en] The effect of food level on growth and metamorphosis of paedomorphs was examined in an experimental replicated design in Triturus alpestris apuanus. Paedomorphosis concerns the retention of larval characteristics in adult individuals. Newts that forgo metamorphosis and then retain gill and gill slits in the adult stage maintain an aquatic life but keep potential for undergoing metamorphosis. Paedomorphs metamorphosed later in treatments with food as a non-limiting factor than in stressful treatments where food was limited. Timing of metamorphosis did not differ between males and females. Food level greatly affected growth rates. These results confirm and extend optimality models that predict paedomorphosis under advantageous aquatic conditions (paedomorph advantage hypothesis) and metamorphosis in stressful aquatic habitats.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/2975
DOI :	10.1111/j.1469-1795.2006.00081.x
Mentions required by the publisher for OA :	The published paper is also available from E. Schweizerbart'ssche Verlagsbuchhandlung.
Commentary :	This journal is now named International Journal of Limnology - Archiv für Hydrobiologie

File(s) associated to this reference

Fulltext file(s):

	File	Commentary	Version	Size	Access
Restricted access	Arch_Hydrobiol_2001.pdf	This is a pdf file of the published paper	Publisher postprint	1.98 MB	Request copy
Open access	Arch-Hydrobiol-2001-open-access.pdf	This is the author postprint (i.e., post-refereed version) pdf in open access	Author postprint	140.56 kB	View/Open

All documents in ORBi are protected by a user license.

Dspace v1.5