La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Dispersal and home-range dynamics of exotic, male sika deer in Maryland
Auteurs :	David M. Kalb, Auteur ; Jacob L. Bowman, Auteur ; T. Brian Eyler, Auteur
Type de document :	Article
Dans :	Wildlife Research (40(4) 2013)
Article en page(s) :	328-335
Langues:	Anglais
Résumé :	Content. An unknown number (n = four or five) and sex of sika deer (Cervus nippon yakushimae) were introduced to the Delmarva Peninsula, Maryland, in 1916. Since introduction, their population has grown exponentially. Aims. The purpose of our study was to investigate dispersal and home-range size to enable better management of this exotic species in the presence of native white-tailed deer (Odocoileus virginianus). Methods. We collected telemetry locations on 60 males (captured during their first winter) from 2008 to 2010. Animals were classified into three movement groups, including local, migratory and nomadic post-dispersal. Key results. Average home-range sizes ranged from 464 to 4121 ha and were influenced by season and deer movement grouping (P = 0.0001). Of 20 deer that dispersed, 19 did so at 1 year of age. Dispersal distance and direction were random across the landscape (P = 0.899). Local deer were the most common movement group (70%; 42 of 60) and were characterised by short movements confined to a well established home range. We observed

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