Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Feeding and Reproduction of Three Didelphid Marsupials in Two Neotropical Forests (French Guiana)

Didier Julien-Laferriere and Martine Atramentowicz
Biotropica
Vol. 22, No. 4 (Dec., 1990), pp. 404-415
DOI: 10.2307/2388558
Stable URL: http://www.jstor.org/stable/2388558
Page Count: 12
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Feeding and Reproduction of Three Didelphid Marsupials in Two Neotropical Forests (French Guiana)
Preview not available

Abstract

The reproductive patterns of three didelphid marsupial species (Caluromys philander. Didelphis marsupialis and Philander opossum) were studied in secondary and mature forest in French Guiana in relation to food supply and seasonal variation. Both forests exhibited a period of low fruit availability which was longer and more acute in the mature forest. Nevertheless, survival rate of pouch young was higher for C. philander and P. opossum in the mature forest. It was correlated with high nectar availability during the season of fruit scarcity, and with lower population density compared to the secondary forest site. Conversely, D. marsupialis had a more seasonal breeding pattern, with low mortality of pouch young on both sites, and thus appeared less directly dependent on environmental conditions. Annual variations in body weight were compared for the three species on both study areas. Influence of parturition dates, age and body weight of the female upon litter size and pouch young survival is discussed.

Page Thumbnails

  • Thumbnail: Page 
404
    404
  • Thumbnail: Page 
405
    405
  • Thumbnail: Page 
406
    406
  • Thumbnail: Page 
407
    407
  • Thumbnail: Page 
408
    408
  • Thumbnail: Page 
409
    409
  • Thumbnail: Page 
410
    410
  • Thumbnail: Page 
411
    411
  • Thumbnail: Page 
412
    412
  • Thumbnail: Page 
413
    413
  • Thumbnail: Page 
414
    414
  • Thumbnail: Page 
415
    415