Trapping efficiency of three carnivorous Pinguicula species

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 cm day and apparently has some...

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Bibliographic Details
Published inOecologia Vol. 73; no. 4; pp. 518 - 521
Main Authors Karlsson, P.S, Nordell, K.O, Eirefelt, S, Svensson, A
Format Journal Article
LanguageEnglish
Published Germany 01.10.1987
Subjects
insects
Pinguicula
pinguicula alpina
pinguicula villosa
pinguicula vulgaris
plant nutrition
trapping
Sweden
Trapping efficiency
Pinguicula
Carnivorous plants
Nutrient relations
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Summary: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 cm day and apparently has some means of attracting prey. The other two species trapped about 14-18 μg cm day , 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.
ISSN:0029-8549
1432-1939
DOI:10.1007/BF00379409