Native vegetation structure, landscape features and climate shape non‐native plant richness and cover in New Zealand native shrublands

Rossignaud, Laureline; Hulme, Philip E.

doi:10.1111/ddi.13713

Cited by 2 publications

References 92 publications

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Disturbance‐mediated community characteristics and anthropogenic pressure intensify understorey plant invasions in natural forests

Jo,

Bellingham,

Mason

et al. 2024

Journal of Ecology

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Although disturbance is considered a major driver of plant invasions across many systems, our understanding of the mechanisms by which disturbance mediates understorey invasions in natural forests is limited. We used a national natural forest inventory dataset spanning New Zealand's wide climatic and soil fertility gradients to disentangle disturbance‐mediated community characteristics driving abundance, species richness and functional composition of understorey plant invasions. Disturbance‐mediated declines in canopy tree abundance and increases in soil fertility and pH increased non‐native plant richness and cover relative to co‐occurring native plant assemblages. Cover of non‐native species also increased with proximity to anthropogenic land cover. Non‐native plant assemblages had higher community‐weighted mean (CWM) values for specific leaf area (SLA) but lower CWM values for height and woodiness relative to native assemblages irrespective of disturbance. However, greater nearby anthropogenic land cover drove increased woodiness in non‐native assemblages but decreased woodiness in co‐occurring native assemblages. Synthesis: Our study provides the first national‐scale evidence that canopy disturbance effects on soil properties increase both richness and abundance of non‐native plants in natural forest understories. We also revealed functional trait differences between native and non‐native assemblages (SLA in particular), which could alter fundamental forest ecosystem processes like litter decomposition and nutrient cycling. Finally, landscape‐scale anthropogenic impacts may exacerbate forest invasions by increasing non‐native abundance and favouring woody invaders, which may achieve dominance in future forest communities over the longer‐term.

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Disturbance‐mediated community characteristics and anthropogenic pressure intensify understorey plant invasions in natural forests

Jo,

Bellingham,

Mason

et al. 2024

Journal of Ecology

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Plant Diversity Under Native and Exotic Forests: Implications for Transitional Forestry in Aotearoa New Zealand

Pritchard,

Larcombe,

Steel

et al. 2024

Preprint

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Native vegetation structure, landscape features and climate shape non‐native plant richness and cover in New Zealand native shrublands

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 2 publications

References 92 publications

Disturbance‐mediated community characteristics and anthropogenic pressure intensify understorey plant invasions in natural forests

Disturbance‐mediated community characteristics and anthropogenic pressure intensify understorey plant invasions in natural forests

Plant Diversity Under Native and Exotic Forests: Implications for Transitional Forestry in Aotearoa New Zealand

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