Read more about the article The dual purpose of Guava invasion in Vhembe Biosphere Reserve
Guava (Psidium guajava L.) an invasive alien tree species that is widely distributed in Vhembe Biosphere Reserve, Limpopo Province of South Africa, where it has both benefits and costs. (Photo credit: Sheunesu Ruwanza)

The dual purpose of Guava invasion in Vhembe Biosphere Reserve

A new study by C∙I∙B Core Team member Sheunesu Ruwanza and co-author Gladman Thondhlana assessed the perceptions, knowledge, and uses of guava to rural communities in the Vhembe Biosphere Reserve, South Africa.

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Read more about the article Does “not in my backyard” hinder invasive species management?
Support from private owners is necessary to eradicate the Eastern grey squirrel, Sciurus carolinensis, in Italy and other invasive alien species (Photo credit: Sandro Bertolino)

Does “not in my backyard” hinder invasive species management?

A new study, co-authored by C∙I∙B former PhD student Giovanni Vimercati and C∙I∙B Steering Committee member Dr Piero Genovesi, investigated how and under which circumstances restricted access to private areas limits invasive species management.

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Read more about the article What informs decisions to manage urban biological invasions?
A framework of key considerations for establishing invasive alien species (IAS) management thresholds to inform decision-making in urban areas and how they relate to the stages of invasion.

What informs decisions to manage urban biological invasions?

Urban areas are foci for the introduction of alien species and very often act as launching sites for invasions into natural ecosystems that adjoin urban ecosystems. Until very recently, the study of biological invasions has focused on developing concepts and frameworks mainly for (semi)natural ecosystems.

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Read more about the article Volunteers in the management of invasive alien plants
Figure 1. Identified volunteer groups (52) in Western Cape of South Africa. Groups that participated in the survey (26) are indicated by circles that also show group sizes (individual members per group). Groups that did not participate in the survey are indicated by blue circles. The green area on the map represents the fynbos biome.

Volunteers in the management of invasive alien plants

Volunteers play an important role in invasive alien plant species (IAPS) management and are likely to continue doing so into the future. Better co-ordination and engagement between volunteers and mandated authorities on science, policy and management are required to improve the volunteer groups and keep volunteers motivated to manage IAPS.

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