Vulnerability and resilience of rainforests to plant invasions in a tropical island of the South Pacific: a sixteen-year survey DOI
Jean‐Yves Meyer,

Solène Fabre Barroso,

Louise MAZOYER

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Сен. 27, 2024

Abstract Island biodiversity is considered to be particularly vulnerable biological invasions. However, the direct impacts of invasive alien plants on native and endemic flora are often difficult assess. Indeed, invasion by woody species a relatively slow process, natural or anthropogenic disturbances that favor some plant invaders, also contribute loss, might act as confounding factors. Hence, we conducted long-term monitoring rainforest composition structure in small tropical high volcanic island Moorea (French Polynesia, South Pacific) over 16-year (2006–2022) period without any major disturbance. All endemic, with stem ≥ 1 cm diameter were identified measured 4-year frequency ten 20 m × plots. The variation richness, Shannon diversity, Pielou evenness abundance time was analyzed using linear mixed-effects models identities plots random Results revealed an increase number stems (+ 50% 16 years), especially two most common trees, Miconia calvescens (Melastomataceae) Spathodea campanulata (Bignoniaceae). In contrast, found decrease richness (from 28 19) (-20% stems) species, higher-elevation Three remained stable terms invasions according indices, persisted time. Although continuous decline including extirpation, observed, our results suggest relative resilience certain forest types associated communities Efforts control should therefore target habitats.

Язык: Английский

Vulnerability and resilience of rainforests to plant invasions in a tropical island of the South Pacific: a sixteen-year survey DOI
Jean‐Yves Meyer,

Solène Fabre Barroso,

Louise MAZOYER

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Сен. 27, 2024

Abstract Island biodiversity is considered to be particularly vulnerable biological invasions. However, the direct impacts of invasive alien plants on native and endemic flora are often difficult assess. Indeed, invasion by woody species a relatively slow process, natural or anthropogenic disturbances that favor some plant invaders, also contribute loss, might act as confounding factors. Hence, we conducted long-term monitoring rainforest composition structure in small tropical high volcanic island Moorea (French Polynesia, South Pacific) over 16-year (2006–2022) period without any major disturbance. All endemic, with stem ≥ 1 cm diameter were identified measured 4-year frequency ten 20 m × plots. The variation richness, Shannon diversity, Pielou evenness abundance time was analyzed using linear mixed-effects models identities plots random Results revealed an increase number stems (+ 50% 16 years), especially two most common trees, Miconia calvescens (Melastomataceae) Spathodea campanulata (Bignoniaceae). In contrast, found decrease richness (from 28 19) (-20% stems) species, higher-elevation Three remained stable terms invasions according indices, persisted time. Although continuous decline including extirpation, observed, our results suggest relative resilience certain forest types associated communities Efforts control should therefore target habitats.

Язык: Английский

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