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.

Trapping Efficiency of Three Carnivorous Pinguicula Species

P. S. Karlsson, K. O. Nordell, S. Eirefelt and A. Svensson
Oecologia
Vol. 73, No. 4 (1987), pp. 518-521
Published by: Springer in cooperation with International Association for Ecology
Stable URL: http://www.jstor.org/stable/4218400
Page Count: 4
  • Download ($43.95)
  • Cite this Item
Trapping Efficiency of Three Carnivorous Pinguicula Species
Preview not available

Abstract

In situ trapping efficiencies of Pinguicula alpina L., P. villosa L., and P. vulgaris L. were compared with each other and with those of artificial traps at a subarctic site in northern Sweden. P. vulgaris had the highest trapping efficiency i.e., 21-37 μg prey trapped $\text{cm}^{-2}\ \text{day}^{-1}$ and apparently has some means of attracting prey. The other two species trapped about 14-18 μg $\text{cm}^{-2}\ \text{day}^{-1}$, a value similar to that of paper traps mimicing plant leaves. By weight, Nematocera and Collembola were the dominant groups trapped by P. alpina. P. villosa trapped mainly Collembola, while small Nematocera dominated the prey caught by P. vulgaris. Mites (Acarina) were caught in high numbers but contributed only a small part of the total captured biomass owing to their low weight.

Page Thumbnails

  • Thumbnail: Page 
[518]
    [518]
  • Thumbnail: Page 
519
    519
  • Thumbnail: Page 
520
    520
  • Thumbnail: Page 
521
    521