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Role of granivory and insectivory in the life cycle of the carabid beetle Amara similata

Bracht Jörgensen, Helene LU and Toft, Søren (1997) In Ecological Entomology 22(1). p.7-15
Abstract
1. The cereal field carabid beetle Amara similata was selected to elucidate the role of seeds and insects as food sources. Three experiments were performed to rank different weed seeds and insects in terms of food value: (i) fecundity in relation to adult diet, (ii) larval survival in relation to diet and (iii) larval survival in relation to parental diet.



2. Seeds were found to be of high value and insects of low value both for adults and larvae. Adding insects to a seed diet gave no significant improvement. The value of single species of seeds varied within adults and larvae, but also between adults and larvae. This is the first report that Amara larvae are granivorous.



3. The value of different... (More)
1. The cereal field carabid beetle Amara similata was selected to elucidate the role of seeds and insects as food sources. Three experiments were performed to rank different weed seeds and insects in terms of food value: (i) fecundity in relation to adult diet, (ii) larval survival in relation to diet and (iii) larval survival in relation to parental diet.



2. Seeds were found to be of high value and insects of low value both for adults and larvae. Adding insects to a seed diet gave no significant improvement. The value of single species of seeds varied within adults and larvae, but also between adults and larvae. This is the first report that Amara larvae are granivorous.



3. The value of different insects varied by species. Cereal aphid species were of the lowest value both for adult and larval beetles. On a diet of mixed insects, the adults were able to produce a low number of eggs but the larvae all died before pupation.



4. There was no simple relation between survival of the larvae and the quality of the parents' diet. (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
fecundity, larval survival, diet value, insect diet, Carabidae, seed diet, Amara similata
in
Ecological Entomology
volume
22
issue
1
pages
7 - 15
publisher
Wiley-Blackwell
external identifiers
  • scopus:0030618432
ISSN
1365-2311
DOI
10.1046/j.1365-2311.1997.00045.x
language
English
LU publication?
no
id
fc5bc2bd-7cd2-4bd5-bbe2-50d90b8f7f10 (old id 1397799)
date added to LUP
2009-05-20 10:22:25
date last changed
2017-01-01 04:48:51
@article{fc5bc2bd-7cd2-4bd5-bbe2-50d90b8f7f10,
  abstract     = {1. The cereal field carabid beetle Amara similata was selected to elucidate the role of seeds and insects as food sources. Three experiments were performed to rank different weed seeds and insects in terms of food value: (i) fecundity in relation to adult diet, (ii) larval survival in relation to diet and (iii) larval survival in relation to parental diet.<br/><br>
<br/><br>
2. Seeds were found to be of high value and insects of low value both for adults and larvae. Adding insects to a seed diet gave no significant improvement. The value of single species of seeds varied within adults and larvae, but also between adults and larvae. This is the first report that Amara larvae are granivorous.<br/><br>
<br/><br>
3. The value of different insects varied by species. Cereal aphid species were of the lowest value both for adult and larval beetles. On a diet of mixed insects, the adults were able to produce a low number of eggs but the larvae all died before pupation.<br/><br>
<br/><br>
4. There was no simple relation between survival of the larvae and the quality of the parents' diet.},
  author       = {Bracht Jörgensen, Helene and Toft, Søren},
  issn         = {1365-2311},
  keyword      = {fecundity,larval survival,diet value,insect diet,Carabidae,seed diet,Amara similata},
  language     = {eng},
  number       = {1},
  pages        = {7--15},
  publisher    = {Wiley-Blackwell},
  series       = {Ecological Entomology},
  title        = {Role of granivory and insectivory in the life cycle of the carabid beetle Amara similata},
  url          = {http://dx.doi.org/10.1046/j.1365-2311.1997.00045.x},
  volume       = {22},
  year         = {1997},
}