Current and legacy effects of neighborhood communities on plant growth and aboveground herbivory

Liu, Xiangyu; Bezemer, T. Martijn

doi:10.1016/j.baae.2022.12.007

Cited by 1 publication

(3 citation statements)

References 61 publications

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“…In fact, studies on the distinct relationship between habitat heterogeneity and species diversity have reported various patterns, including monotonic increase, monotonic decrease, and hump-shaped relationships (Heidrich et al 2020). For instance, Liu et al found that habitat heterogeneity had a signi cant negative impact on herbaceous species richness on islands, while it had a signi cant positive effect on the richness of tree and liana species (Liu et al 2023), which is largely consistent with our ndings. This difference may stem from habitat fragmentation as a result of human activity, potentially leading to a decline in habitat quality (Chase et al 2020).…”

Section: Human Activitiessupporting

confidence: 92%

“…We use land use intensity and habitat heterogeneity to re ect human activities on islands (Xu et al 2023;Liu et al 2023). Land use intensity (LUI) quanti es human impact on the land surface (Foley et al 2005).…”

Section: Island Attributes Human Activities and Climatic Factorsmentioning

confidence: 99%

“…These contradictory effects create uncertainty regarding the role of human-mediated biogeographic effects on islands and their impact on sustaining biodiversity. These contradictions may also arise because different plant life-forms respond variably to human activities (Liu et al 2023). As trees, shrubs, and herbs exhibit different survival and reproductive strategies (Whittaker and Fernandez-Palacios 2007;Caujapé-Castells et al 2010), they respond differently to human activities.…”

Section: Introductionmentioning

confidence: 99%

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Differential influences of island biogeographic effects on the diversity of three plant life-forms

Li,

Pan,

Yang

et al. 2024

Preprint

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Traditional island biogeography has assumed that area size and remoteness are key factors affecting species richness, but this theory has recently been challenged as increased human activity and climate change altered species dispersal patterns. It is unclear whether these two emerging factors will impact the existing mechanisms of biodiversity maintenance. Our research addresses this gap by examining trees, shrubs, and herbs on 30 islands along China's eastern continental shelf. We utilized remote sensing technology to assess human activity, island area and remoteness, and employed various statistical models such as linear regression and PLS-PM to interpret the mechanisms that maintain the richness of different plant life-forms. Our findings show a strong positive correlation between island area and total (SR, R² = 0.51), tree (R² = 0.41), shrub (R² = 0.40), and herb species richness (R² = 0.36, all p < 0.01). Conversely, island remoteness was negatively correlated with SR, tree, and shrub species richness (R² ≤ 0.22, p ≤ 0.01), while no significant correlation with herb species richness. Additionally, we found a positive correlation between human activities and invasive plant species (R² = 0.29, 0.47, p < 0.01). The PLS-PM indicates in addition to island biogeographical effects, climate, human activities, and habitat diversity also affect the distribution of plant diversity through this effect, but the driving mechanisms differ among three plant life-forms. Area is a major determinant for shrub and herb diversity, while remoteness more significantly affects tree species richness. Human activities positively affect tree richness but negatively affect shrub and herb richness. Climatic variables were analyzed to understand their potential effects on the richness of the three plant life-forms. While our results showed a significant positive impact on shrub richness, the relationships with tree and herb richness were not statistically significant. Our study contributes new empirical insights into island biogeography, integrating multiple factors to explain plant diversity maintenance and offering valuable data for island biodiversity conservation.

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Section: Human Activitiessupporting

confidence: 92%