La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Assessing the age of the Red-crested Pochard ducklings Netta rufina (Anatidae, Anseriformes) based on photo comparisons (2021)
Auteurs :	Abdeslam Rihane, Auteur ; Sidi Imad Cherkaoui, Auteur
Type de document :	Article
Dans :	Journal of Materials and Environmental Sciences (12(8) August, 2021)
Article en page(s) :	1021-1035
Langues:	Anglais
Mots-clés :	Algérie ; Netta rufina ; Age ; Photographie
Résumé :	The assessment of the size of the Red-crested Pochard ducklings Netta rufina in the wild was undertaken in the Hassar Dam on two late broods, one recently hatched and the second slightly older and was used to test the validity of the proposed model. This evaluation is done by comparing all chicks to the size of the mother (on several photographs). The use of the evolution of the measurements (body size, head size and bill size) in relation to the mother's size based on the photographs allowed the development of a model that helps to determine the age of the ducklings in the wild in comparison to the mother's size. This model of the evolution of the ducklings' growth was verified on the second brood and allowed to determine, within a few days, the age of the ducklings.
En ligne :	https://www.jmaterenvironsci.com/Journal/vol12-8.html

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