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Oppositional responses to host density in Aphytis holoxanthus (Hymenoptera: Aphefinidae), an efficient gregarious parasite
Year:
1978
Source of publication :
Ecological Entomology
Authors :
Podoler, Haggai
;
.
Volume :
3
Co-Authors:
PODOLER, H., Hebrew University, Faculty of Agriculture, Rehovot, Israel
ROSEN, D., Hebrew University, Faculty of Agriculture, Rehovot, Israel
SHARONI, M., Hebrew University, Faculty of Agriculture, Rehovot, Israel
Facilitators :
From page:
305
To page:
311
(
Total pages:
7
)
Abstract:
Abstract. 1. Ovipositional responses of an efficient gregarious ectoparasite (Aphytis holoxanthus) to increasing densities of its host (the Florida red scale, Chrysomphalus aonidum, Homoptera: Diaspididae) were studied in a laboratory system. 2. The female parasite may lay one to several eggs at each encounter with a host. 3. As host density increased, the number of eggs laid by the female parasite during the experimental period increased at a decreasing rate. This type of functional response resulted in less parasitism at higher host densities. 4. As host density increased, the number of eggs laid per encounter decreased. This behavioural response partially compensated for the decrease in parasitism. Copyright © 1978, Wiley Blackwell. All rights reserved
Note:
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More details
DOI :
10.1111/j.1365-2311.1978.tb00931.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30396
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:54
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Scientific Publication
Oppositional responses to host density in Aphytis holoxanthus (Hymenoptera: Aphefinidae), an efficient gregarious parasite
3
PODOLER, H., Hebrew University, Faculty of Agriculture, Rehovot, Israel
ROSEN, D., Hebrew University, Faculty of Agriculture, Rehovot, Israel
SHARONI, M., Hebrew University, Faculty of Agriculture, Rehovot, Israel
Oppositional responses to host density in Aphytis holoxanthus (Hymenoptera: Aphefinidae), an efficient gregarious parasite
Abstract. 1. Ovipositional responses of an efficient gregarious ectoparasite (Aphytis holoxanthus) to increasing densities of its host (the Florida red scale, Chrysomphalus aonidum, Homoptera: Diaspididae) were studied in a laboratory system. 2. The female parasite may lay one to several eggs at each encounter with a host. 3. As host density increased, the number of eggs laid by the female parasite during the experimental period increased at a decreasing rate. This type of functional response resulted in less parasitism at higher host densities. 4. As host density increased, the number of eggs laid per encounter decreased. This behavioural response partially compensated for the decrease in parasitism. Copyright © 1978, Wiley Blackwell. All rights reserved
Scientific Publication
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