Advanced

Food preference, diet dependent fecundity and larval development in Harpalus rufipes (Coleoptera: Carabidae)

Bracht Jörgensen, Helene LU and Toft, Søren (1997) In Pedobiologia 41. p.307-315
Abstract
The carabid beetle Harpalus rufipes has been examined with respect to food preference and food quality. Three different experiments were performed to clarify the role of weedy seeds and insects as food for H. rufipes: 1) adult's food preference, 2) fecundity dependent on diet, and 3) larval development dependent on diet.

No direct relation between food preference and food value was found. The seeds of Taraxacum spl were the most preferred among all the food types tested.

Among the insects the cereal aphid Metopolophium dirhodum and Drosophila were highly preferred. The value of insects as a food source was much lower than the value of seeds, for the larvae as well as for the adults. Survival was identical, however, on a... (More)
The carabid beetle Harpalus rufipes has been examined with respect to food preference and food quality. Three different experiments were performed to clarify the role of weedy seeds and insects as food for H. rufipes: 1) adult's food preference, 2) fecundity dependent on diet, and 3) larval development dependent on diet.

No direct relation between food preference and food value was found. The seeds of Taraxacum spl were the most preferred among all the food types tested.

Among the insects the cereal aphid Metopolophium dirhodum and Drosophila were highly preferred. The value of insects as a food source was much lower than the value of seeds, for the larvae as well as for the adults. Survival was identical, however, on a mixed insect diet and a mixed seed diet, but the developmental time for first and second larval instar was about twice as long on the mixed insect diet. The single species diets also differed in value. Seeds of Poa annua were of high value whereas the aphid Rhopalosiphum padi was of extremely low value. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
larval survival, food preference, fecundity, diet value, insect diet, Seed diet
in
Pedobiologia
volume
41
pages
307 - 315
publisher
Elsevier
external identifiers
  • scopus:0030766739
ISSN
1873-1511
language
English
LU publication?
no
id
d5e938c6-3e3a-4a14-a254-71b75221a9b4 (old id 1397808)
date added to LUP
2009-05-20 10:39:48
date last changed
2017-10-22 04:44:41
@article{d5e938c6-3e3a-4a14-a254-71b75221a9b4,
  abstract     = {The carabid beetle Harpalus rufipes has been examined with respect to food preference and food quality. Three different experiments were performed to clarify the role of weedy seeds and insects as food for H. rufipes: 1) adult's food preference, 2) fecundity dependent on diet, and 3) larval development dependent on diet.<br/><br>
No direct relation between food preference and food value was found. The seeds of Taraxacum spl were the most preferred among all the food types tested.<br/><br>
Among the insects the cereal aphid Metopolophium dirhodum and Drosophila were highly preferred. The value of insects as a food source was much lower than the value of seeds, for the larvae as well as for the adults. Survival was identical, however, on a mixed insect diet and a mixed seed diet, but the developmental time for first and second larval instar was about twice as long on the mixed insect diet. The single species diets also differed in value. Seeds of Poa annua were of high value whereas the aphid Rhopalosiphum padi was of extremely low value.},
  author       = {Bracht Jörgensen, Helene and Toft, Søren},
  issn         = {1873-1511},
  keyword      = {larval survival,food preference,fecundity,diet value,insect diet,Seed diet},
  language     = {eng},
  pages        = {307--315},
  publisher    = {Elsevier},
  series       = {Pedobiologia},
  title        = {Food preference, diet dependent fecundity and larval development in Harpalus rufipes (Coleoptera: Carabidae)},
  volume       = {41},
  year         = {1997},
}