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

Studies of invasive Australian  Acacia  have shown that many seeds are still produced and accumulate in soil stored seed banks regardless of the presence of seed-targeting biological control agents. This is despite claims of biological control success, although there is generally a lack of data on the seed production of invasive Australian  Acacia  before and after the release of the respective agents. We aimed to quantify seed production and seed survival of invasive Australian  Acacia  currently under biological control. The seed production and survival (proportion of aborted, predated and surviving seeds) of  A. longifolia ,  A. pycnantha  and  A. saligna  were each studied at four to five sites in the Western Cape of South Africa. The relationships between seed production and stand characteristics were determined and the relative effects of seed predation and abortion on seed survival were established. The investigated invasive Australian  Acacia  produced many seeds that survived the pre-dispersal stage despite long-term presence of released biological control agents. It was shown that seed crop size is the only significant factor influencing seed survival of the studied Australian  Acacia  species. Furthermore, the seeds surviving per tree and per square meter were related to tree size. No quantitative evidence was found to suggest that seed-reducing biological control agents are having an impact on the population dynamics of their Australian  Acacia  hosts. This study illustrates the importance of studying the seed ecology of invasive plants before biological control agents are selected and released.

peerj

Seed survival of Australian <i>Acacia</i> in the Western Cape of South Africa in the presence of biological control agents and given environmental variation

Seed survival of Australian Acacia in the Western Cape of South Africa in the presence of biological control agents and given environmental variation