The patient predator : foraging and population ecology of the great blue heron Ardea herodias in British Columbia / Robert W. Butler. : CW69-1/86E-PDF
"This report presents the results of a six-year study (1986-91, including five breeding seasons and four winters) of the diet, food availability, foraging behaviour, use of habitats by age-classes and sex-classes, spacing of breeding colonies, and survival of the Great Blue Heron Ardea herodias on the Pacific coast of British Columbia. The general thesis of this study is that the availability of food energy largely dictates when herons use foraging habitats, the time of year that they breed, and which individuals survive"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.856111&sl=1
Ministère/Organisme | Canada. Environment Canada. Canadian Wildlife Service. |
---|---|
Titre | The patient predator : foraging and population ecology of the great blue heron Ardea herodias in British Columbia / Robert W. Butler. |
Titre de la série | Occasional paper ; no. 86 |
Type de publication | Série - Voir l'enregistrement principal |
Langue | [Anglais] |
Format | Électronique |
Document électronique | |
Autres formats offerts | Papier-[Anglais] |
Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Issued also in print format. Includes abstract in French. |
Information sur la publication | Ottawa : Canadian Wildlife Service, c1995. |
Auteur / Contributeur | Butler, Robert William. |
Description | 44 p. : ill. |
Numéro de catalogue |
|
Descripteurs | Aquatic birds Ecology Herons |
Demander des formats alternatifs
Pour demander une publication dans un format alternatif, remplissez le formulaire électronique des publications du gouvernement du Canada. Utilisez le champ du formulaire «question ou commentaire» pour spécifier la publication demandée.- Date de modification :