Invasive alien plants pose a threat to biodiversity in particular on oceanic islands, where endemism tends to be high. In this context, it matters to characterise invasions in-situ and in particular to document how far invasive plants may invade protected areas devoid of major human disturbances....

High-resolution airborne imaging spectroscopy represents a promising avenue for mapping the spread of invasive tree species through native forests, but for this technology to be useful to forest managers there are two main technical challenges that must be addressed: (1) mapping a single focal...

During surveys conducted on guava orchards in Jalisco and Queretaro, Mexico, the presence of Conotrachelus dimidiatus was observed causing severe damage on guava fruits. The pest was identified based on morphological analysis. this is thought to be the first report of this damaging pest on guavas...

Climate change may exacerbate the impacts of plant invasions by providing opportunities for new naturalisations and for alien species to expand into regions where previously they could not survive and reproduce. Although climate change is not expected to favour invasive plants in every case, in...

During 2014-2015, algal spot disease was noticed in the guava orchards of northern and southern Thailand. Symptoms of the disease occurred on the leaves and fruit. Scabs were formed on heavily infected fruits. The associated algae were identified as Cephaleuros parasiticus by morphological...

This study records the occurrence of eucoilines (Hymenoptera: Figitidae), parasitoids of the African fig fly Zaprionus indianus Gupta (Diptera: Drosophilidae), in the Brazilian semi-arid Caatinga biome. We obtained from mango (Mangifera indica L.) and guava (Psidium guajava L.) fruits Drosophilidae ...

The Lord Howe Island Weed Eradication Program is possibly one of the most ambitious island weed eradication programs on an inhabited island, in the South Pacific - if not globally - given the density, distribution and diversity of weed populations that were present on the island at the program's...

Plant invasion typically occurs within a landscape-scale framework of abiotic and biotic conditions, often resulting in emergent feedbacks among environment, ecosystem functions, and the dominance of invasive species. Understanding the mechanisms underlying successful invasions is an important...

As habitat loss and fragmentation place growing pressure on endangered nonhuman primate populations, researchers find increasing evidence for novel responses in behavior. In western Uganda between the Budongo and Bugoma Forests, chimpanzees (Pan troglodytes schweinfurthii) inhabit a mosaic...

Question: How did the native and alien woody plant communities of protected lowland wet forests of a tropical oceanic island change in the presence of understorey invasive alien plants over the medium (21-27 yrs) and longer term (68 yrs)? Location: Bel Ombre, Brise Fer and Macchabé forests in the...