Does interspecific competition affect the vertical habitat segregation of Apodemus argenteus and Apodemus speciosus? : Experimental evaluation by removal and food supplementation

Access this Article

Search this Article

Author(s)

Abstract

A proximate factor causing the vertical habitat segregation of two sympatric wood mice, <i>Apodemus argenteus</i> and <i>Apodemus speciosus</i>, was analyzed by removal, and food supplementation, experiments. <i>A. argenteus</i> became actively arboreal during summer and autumn, while <i>A. speciosus'</i> arboreal activity was negligible throughout the year, causing seasonal habitat segregation between the two species. Removal experiments showed that the arboreal habits of <i>A. argenteus</i> increased from summer to autumn on both removal and control grids, regardless of the removal of <i>A. speciosus</i>. Food supplementation, however, showed that the provision of additional food led to a rapid decrease in the arboreal habits of <i>A. argenteus</i>. These findings suggest that the arboreal habits of<i> A. argenteus</i> are not the result of interference competition between species, but are a behavioral response to temporal and spatial fluctuations in food availability.<br>

Journal

  • Mammal Study

    Mammal Study 29(2), 97-104, 2004-12-01

    THE MAMMAL SOCIETY OF JAPAN

References:  13

Cited by:  2

Codes

  • NII Article ID (NAID)
    10014272613
  • NII NACSIS-CAT ID (NCID)
    AA11185060
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13434152
  • NDL Article ID
    7211717
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z54-G149
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
Page Top