Collecting arboreal arthropods: a technique for sampling plant‐inhabiting arthropod communities in a tropical forest understory

Viana‐Júnior, Arleu Barbosa; Quijano-Cuervo, Luis; Ferreira, Jessica Cardoso; Reis, Ronaldo Roberto do Nascimento; Santos, Iracenir Andrade dos; Martins, Marlúcia Bonifácio

doi:10.1111/eea.13012

Cited by 4 publications

(1 citation statement)

References 36 publications

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“…We combined these three sampling methods to maximize the sampling effort considering the different behaviors and habitats of arthropods (Wynne et al., 2018 ). We used a 1.5‐m long sweep net with a 30 cm net diameter for 5 min to collect arthropods from various strata and habitats and thus cover up to nearly 90% of the arthropod species in a given site (Viana‐Junior et al., 2021 ). Each transect was swept by the net for 5 min.…”

Section: Methodsmentioning

confidence: 99%

Chronic anthropogenic disturbance mediates the bottom‐up influence of plant diversity on arthropods in tropical forests

Gaoue,

Bassoki,

Dassou

2024

Ecology and Evolution

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Understanding how primary productivity and diversity affect secondary productivity is an important debate in ecology with implications for biodiversity conservation. Particularly, how plant diversity influences arthropod diversity contributes to our understanding of trophic cascades and species coexistence. Previous studies show a positive correlation between plant and arthropod diversity. The theory of associational resistance suggests that plant herbivory rate will decrease with increasing plant diversity indicating feedbacks between primary diversity, productivity, and secondary productivity rates. However, our understanding of how these relations are mediated by anthropogenic disturbance is still limited. We surveyed 10 forest sites, half of which are disturbed by fire, logging, and tree pruning, distributed in two climatic zones in Benin, West Africa. We established 100 transects to record plant species and sampled arthropods using pitfall traps, ceramic plates with bait, and sweeping nets. We developed a structural equation model to test the mediating effect of chronic anthropogenic disturbance on plant diversity and how it influences arthropod diversity and abundance. Arthropod diversity increased but arthropod abundance decreased with increasing intensity of disturbance. We found no significant bottom‐up influence of the plant diversity on arthropod diversity but a significant plant diversity–arthropod abundance relationship. Some arthropod guilds were significantly affected by plant diversity. Finally, herbivory rates were positively associated with arthropod diversity. Synthesis. Our results highlight how chronic anthropogenic disturbance can mediate the functional links between trophic levels in terms of diversity and productivity. Our study demonstrated a decoupled response of arthropod diversity and abundance to disturbance. The direct positive influence of plant diversity on herbivory rates we found in our study provides counter‐support for the theory of associational resistance.

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Section: Methodsmentioning

confidence: 99%

Chronic anthropogenic disturbance mediates the bottom‐up influence of plant diversity on arthropods in tropical forests

Gaoue,

Bassoki,

Dassou

2024

Ecology and Evolution

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Neotropical Gradients of Insect Groups in Brazilian Mountains

Perillo

Neves

Castro

et al. 2023

Neotropical Gradients and Their Analysis

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Temperature and tree number drive tree crown‐dwelling arthropod diversity in Brazilian semi‐arid cities

Viana‐Junior,

Silva,

Pinheiro‐Júnior

et al. 2024

Insect Conserv Diversity

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Urbanisation is one of the most severe land use changes with significant negative impacts on several biological groups. However, the response of arthropods to this process is still unclear, especially in cities located in arid regions, which represent an important part of global urban ecosystems. Here, we examined variations in abundance, richness, diversity and taxonomic composition of the tree crown‐dwelling arthropods in 10 Brazilian cities of semiarid climate located in the dry forest region (Caatinga), taking into account temperature gradients and number of street trees along the cities. We expected that cooler (in a hot range of temperature) and more forested cities would present richer, more abundant and distinct communities than warmer cities. This hypothesis is supported by the large amount of evidence showing the negative effects of temperature on the local structuring of biological communities. We used the method of the arboreal arthropod collector to sample the arthropod community inhabiting trees crowns up to 10 m in height. We collected a total of 22,911 arthropod specimens belonging to two classes (Insecta and Arachnida) and 24 orders. As expected, temperature (min 21.7°C, max 26.8°C) proved to be a significant predictor of arthropod diversity in semiarid cities. Cities with higher temperatures reduce taxonomic unit richness (0D) by 33% and diversity (1D and 2D) in up to 75% and affect composition of arthropod orders composition. On the other hand, the effect of tree numbers showed distinct responses among the sampled orders, positively contributing to the abundance of Psocoptera, while exerting a negative effect on the abundance of Thysanoptera. Overall, our findings highlight the importance of temperature and number of trees in determining urban arthropod fauna.

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Collecting arboreal arthropods: a technique for sampling plant‐inhabiting arthropod communities in a tropical forest understory

Cited by 4 publications

References 36 publications

Chronic anthropogenic disturbance mediates the bottom‐up influence of plant diversity on arthropods in tropical forests

Chronic anthropogenic disturbance mediates the bottom‐up influence of plant diversity on arthropods in tropical forests

Neotropical Gradients of Insect Groups in Brazilian Mountains

Temperature and tree number drive tree crown‐dwelling arthropod diversity in Brazilian semi‐arid cities

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