TY - JOUR
T1 - The influence of natural enemies on wing induction in Aphis fabae and Megoura viciae (Hemiptera: Aphididae)
AU - Kunert, G.
AU - Schmoock-Ortlepp, K.
AU - Reissmann, U.
AU - Creutzburg, S.
AU - Weisser, W. W.
PY - 2008/2
Y1 - 2008/2
N2 - Previous studies have shown that the aphid species, Aphis fabae Scopoli and Megoura viciae Buckton, do not produce winged offspring in the presence of natural enemies, in contrast to results for the pea aphid (Acyrthosiphon pisum (Harris)) and the cotton aphid (Aphis gossypii Glover); but these studies did not involve exposing aphids directly to natural enemies. We exposed colonies of both A. fabae and M. viciae to foraging lacewing (Chrysoperla carnea (Stephens)) larvae and found that the predators did not induce winged morphs among offspring compared to unexposed controls. Colonies of A. fabae responded to an increase in aphid density with increasing winged morph production, while such response was not found for M. viciae. We suggest that different aphid species differ in their susceptibility to natural enemy attack, as well as in their sensitivity to contact.
AB - Previous studies have shown that the aphid species, Aphis fabae Scopoli and Megoura viciae Buckton, do not produce winged offspring in the presence of natural enemies, in contrast to results for the pea aphid (Acyrthosiphon pisum (Harris)) and the cotton aphid (Aphis gossypii Glover); but these studies did not involve exposing aphids directly to natural enemies. We exposed colonies of both A. fabae and M. viciae to foraging lacewing (Chrysoperla carnea (Stephens)) larvae and found that the predators did not induce winged morphs among offspring compared to unexposed controls. Colonies of A. fabae responded to an increase in aphid density with increasing winged morph production, while such response was not found for M. viciae. We suggest that different aphid species differ in their susceptibility to natural enemy attack, as well as in their sensitivity to contact.
KW - Aphid polyphenism
KW - Chrysoperla carnea
KW - Density effects
KW - Predator-prey interaction
UR - http://www.scopus.com/inward/record.url?scp=38549120700&partnerID=8YFLogxK
U2 - 10.1017/S0007485307005391
DO - 10.1017/S0007485307005391
M3 - Article
C2 - 18076776
AN - SCOPUS:38549120700
SN - 0007-4853
VL - 98
SP - 57
EP - 62
JO - Bulletin of Entomological Research
JF - Bulletin of Entomological Research
IS - 1
ER -