Document Type
Article
Journal/Book Title/Conference
Philosophical Transactions of the Royal Society B: Biological Sciences
Author ORCID Identifier
Leandro A. Do Nascimento https://orcid.org/0000-0001-8254-2900
Cristian Pérez-Granados https://orcid.org/0000-0003-3247-4182
Janderson B. Rodrigues Alencar https://orcid.org/0000-0001-9482-7866
Karen H. Beard https://orcid.org/0000-0003-4997-2495
Volume
379
Issue
1904
Publisher
The Royal Society Publishing
Publication Date
6-24-2024
First Page
1
Last Page
10
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Abstract
Insects are the most diverse animal taxon on Earth and play a key role in ecosystem functioning. However, they are often neglected by ecological surveys owing to the difficulties involved in monitoring this small and hyper-diverse taxon. With technological advances in biomonitoring and analytical methods, these shortcomings may finally be addressed. Here, we performed passive acoustic monitoring at 141 sites (eight habitats) to investigate insect acoustic activity in the Viruá National Park, Brazil. We first describe the frequency range occupied by three soniferous insect groups (cicadas, crickets and katydids) to calculate the acoustic evenness index (AEI). Then, we assess how AEI varies spatially and temporally among habitat types, and finally we investigate the relationship between vegetation structure variables and AEI for each insect category. Overall, crickets occupied lower and narrower frequency bands than cicadas and katydids. AEI values varied among insect categories and across space and time. The highest acoustic activity occurred before sunrise and the lowest acoustic activity was recorded in pastures. Canopy cover was positively associated with cricket acoustic activity but not with katydids. Our findings contribute to a better understanding of the role of time, habitat and vegetation structure in shaping insect activity within diverse Amazonian ecosystems.
Recommended Citation
Leandro A. Do Nascimento, Cristian Pérez-Granados, Janderson B. Rodrigues Alencar, Karen H. Beard; Time and habitat structure shape insect acoustic activity in the Amazon. Philos Trans R Soc Lond B Biol Sci 24 June 2024; 379 (1904): 20230112. https://doi.org/10.1098/rstb.2023.0112