SPREAD OF THE WASP PARASITOID SPHECOPHAGA VESPARUM VESPARUM FOLLOWING ITS RELEASE IN NEW ZEALAND

The measurement of parasitism rates of wasp nests at Pelorus Bridge, New Zealand, at different distances from the initial release point suggests that the mean displacement of the parasitoid has increased by 1 - 1.5 km y−1 from 1988 to 1993. Since average parasitism rates within this radius at any gi...

Full description

Saved in:
Bibliographic Details
Published in:New Zealand journal of ecology 1998-01, Vol.22 (2), p.205-208
Main Authors: BARLOW, N.D., BEGGS, J.R., MOLLER, H.
Format: Article
Language:English
Subjects:
Animal nesting
Dispersal
Ichneumonidae
Insect ecology
Insect nests
Insects
Ngaro
Parasitism
Parasitoids
Population density
Population ecology
Population growth
Population growth rate
Short Communications
Sphecophaga vesparum
Wasps
Zoology
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The measurement of parasitism rates of wasp nests at Pelorus Bridge, New Zealand, at different distances from the initial release point suggests that the mean displacement of the parasitoid has increased by 1 - 1.5 km y−1 from 1988 to 1993. Since average parasitism rates within this radius at any given site show little trend over time, this suggests an approximate 3-fold increase in the total parasitoid population each year, two-thirds of which is devoted to dispersal and one-third to maintaining local populations.
ISSN:0110-6465
1177-7788
1177-7788