English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The biological control program against nodding thistle, Carduus nutans, commenced in New Zealand in 972, with the introduction of the receptacle weevil, Rhinocyllus conicus. Seed predation by the larvae of this univoltine weevil did not bring about the desired reduction in nodding thistle populations, and in 992 a further seed predator was introduced – the bivoltine gall fly, Urophora solstitialis. Possible interference between these two niche-sharing agents may have resulted in less-than-additive seed predation. This recent study quantified the interactions between the two agents for the first time in New Zealand, and found the mean number of gall flies per seedhead was reduced by 46–93% in the presence of the receptacle weevil. This suggests that the weevil may limit the gall fly’s populations, thus reducing seed predation later in the nodding thistle flowering period. The potential effects of this reduced attack on nodding thistle population growth rate were simulated using an existing matrix model.

proceedings of the new zealand weed and pest control conference/new zealand plant protection/proceedings of the ... national weeds conference/proceedings of the new zealand weed control conference/proceedings of the new zealand plant protection conference

Interactions between nodding thistle seed predators