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2024
Journal article
Introduced species infiltrate recent stages of succession after glacial retreat on sub-Antarctic South Georgia.
Biological invasions are one of the main drivers of global biodiversity decline. At the same time, glacial retreat induced by climate warming is occurring at an alarming rate across the globe, threatening unique taxa and ecosystems. However, we know little about how introduced species contribute to the dynamics of colonisation... -
2023
Journal article
First record of the introduced ladybird beetle, Coccinella undecimpunctata Linnaeus (1758), on South Georgia (sub-Antarctic).
Biological invasions represent a growing threat to islands and their biodiversity across the world. The isolated sub‐Antarctic island of South Georgia in the South Atlantic Ocean is a highly protected area that relies on effective biosecurity including prevention, surveillance and eradication to limit the risk of biological invasions. Based on... -
2022
Journal article
Seed-coat thickness explains contrasting germination responses to smoke and heat in Leucadendron.
Fire stimulates the germination of most seeds in fire-prone vegetation. Fruits of (Proteaceae) are winged achenes or nutlets that correlate with their requirements for smoke and/or heat in promoting germination. We describe five possible smoke–heat dormancy-release/germination syndromes among plants, of which displays three (no response, smoke only, smoke and heat).... -
2021
Journal article
Contrasting responses of native ant communities to invasion by an ant invader, Linepithema humile.
Invasive alien species pose a serious threat to the integrity and function of natural ecosystems. Understanding how these invaders alter natural communities is therefore an important aspect in predicting the likely future outcomes of biological invasions. Many studies have documented the consequences of invasive alien species on native community structure,... -
2021
Journal article
Fire‑mediated germination syndromes in Leucadendron (Proteaceae) and their functional correlates.