Diversity Patterns of Tropical Epigeal Beetle Assemblages Associated with Monoculture and Polyculture Plantations with Big-Leaf Mahogany

Quinto, Javier; Martínez-Falcón, Ana Paola; Murillo-Pacheco, Johanna I.; Abdala‐Roberts, Luis; Parra‐Tabla, Víctor

doi:10.1007/s13744-021-00870-6

Cited by 7 publications

(6 citation statements)

References 61 publications

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“…The surprisingly low number of pitfall traps needed to obtain a representative sample of dung beetle diversity can be explained by the extremely high effectiveness of these baited traps in attracting and capturing dung beetles (Ong et al, 2022). For instance, studies involving several collecting methods and different Coleoptera families have consistently shown significantly higher capture rates and abundances for Scarabaeinae dung beetles (e.g., Caballero and León-Cortés, 2012;Ramírez-Ponce et al, 2019;Quinto et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Good news! Sampling intensity needed for accurate assessments of dung beetle diversity may be lower in the Neotropics

Rivera

Favila

2022

Front. Ecol. Evol.

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Ecological studies with Scarabaeinae dung beetles have increased exponentially over the past 30 years, using lethal pitfall traps baited with mammal feces or carrion as the preferred sampling method. Different studies have determined the distance between pitfall traps for effective sampling, but the number of traps is often subjective, leading to excessive or poor sampling. This study provides quantitative guidelines for establishing the sample size for optimal completeness of dung beetle diversity by systematically reviewing the relationship between sampling intensity and sampling coverage, habitat type, and the journal impact factor in peer-reviewed research. We gathered 94 studies covering a range from México to Argentina. Sampling was conducted mainly in forested habitats, followed by treeless agriculture and agroforestry systems, with a median value of 50 pitfall traps per sampled habitat. Sampling completeness was above 0.9 in 95% of the studies. Oversampling ranged from 1 to more than 96,000 individuals, and sampling deficit varied between 2 and 3,300 specimens. Sampling intensity and the journal impact factor were significantly and positively correlated with oversampling, but these variables did not explain the sampling deficit. The positive correlation between journal impact factor and oversampling may reflect a publication bias where high-impact journals and researchers seek more generalizable information obtained with a higher sampling intensity. Dung beetle oversampling was not homogeneous between habitats, being highest in old-growth forests and lowest in disturbed habitats such as pastures and forest edges. Our results show that the collection intensity used in dung beetle studies should be reconsidered carefully. By incorporating ethical principles used in animal science, we suggest sampling guidelines for a robust sampling scheme of dung beetle diversity, which would also prevent oversampling. Consciously reducing sampling intensity will make resource use more cost-effective. We suggest increasing the number of independent sampling units rather than intensifying subsampling, thereby increasing the predictive power of statistical models to obtain more robust evidence of the phenomena under study.

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Section: Discussionmentioning

confidence: 99%

Good news! Sampling intensity needed for accurate assessments of dung beetle diversity may be lower in the Neotropics

Rivera

Favila

2022

Front. Ecol. Evol.

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“…Previous work in the UADY experiment has reported variations in insect herbivory level and abundance across taxonomic groups associated with mahogany between monocultures and polycultures (Campos-Navarrete et al 2015a, b;Abdala-Roberts et al 2015, 2016Quinto et al 2021). They also report stronger effects of diversity on specialist (Abdala-Roberts et al 2015) and variable responses in generalist species (Campos-Navarrete et al 2015a;Abdala-Roberts et al 2016).…”

Section: Introductionmentioning

confidence: 88%

“…We used data on beetle communities on mahogany and the other tree species planted in polyculture plots collected by Campos-Navarrete et al (2015) and (Quinto et al 2021(Quinto et al , 2022. Data was collected six months after the establishment of the experiment between May 2012 to September 2013.…”

Section: Study System and Samplingmentioning

confidence: 99%

“…Species showed similar height during the sampling period. The sampling proved to be adequate as it exhibited a sample coverage higher than 78% in all samplings (Quinto et al 2021). Surveys consisted of 25 minutes of direct catches per tree species (six species grow in plots of four species, 300 samplings per year, 50 samplings per species per year).…”

Section: Study System and Samplingmentioning

confidence: 99%

“…At the UADY Tree Diversity Experimental site, the following taxonomic groups have been observed on big-leaf mahogany: Coleoptera, Hemiptera, Lepidoptera, Orthoptera and Tysanoptera. Among these groups Coleoptera and Hemiptera are the most abundant herbivores, however, 82.5% of the leafhoppers belong to Oncometopia sp., with Coleoptera showing much higher evenness and species richness (Campos-Navarrete et al 2015b;Quinto et al 2021).…”

Section: Mahogany-associated Insect Herbivore Communitiesmentioning

confidence: 99%

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Neighboring plants and core herbivores determine the importance of Swietenia macrophylla in the plant–herbivore network

Villa‐Galaviz

Abdala‐Roberts

Quinto

et al. 2022

Arthropod-Plant Interactions

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Species contribute differently to the structure and stability of networks of interacting species. However, species contributions to the importance of other species is usually neglected, thus limiting our understanding of species dynamics beyond the general network structure. We combined knowledge on diversity effects on focal species and network ecology to analyze the influence of plants and herbivores on big-leaf mahogany's (Swietenia macropylla) importance in the plant-herbivore network. To this end, we built interaction networks using information from a large-scale tree diversity experiment and performed computer simulations of species removal with redistribution of interactions. We compared the importance of big-leaf mahogany in the observed networks to simulated networks where we removed: a) tree species with similar beetle assemblages to mahogany, b) the most interconnected (core) tree species and c) the core beetle species. Removal of the core and similar tree species increased the importance of mahogany, whereas eliminating core beetle species decreased it. Interestingly, the effect of core tree species on mahogany's importance was mediated by core beetles (R 2 = 0.46). Neither tree nor core beetle species' effects were contingent on tree species richness or abundance. These results indicate that highly connected tree and herbivore species jointly determine the role of mahogany in the plant-herbivore network. Likewise, these results provide insight into the effect of tree species composition and highly interactive herbivores in shaping the role of species in the herbivore network.

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Structure and diversity of hoverflies (Diptera: Syrphidae) in northwestern Colombian Paramos: towards the identification of bioindicator species in the Tropical Andes

2021

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Diversity Patterns of Tropical Epigeal Beetle Assemblages Associated with Monoculture and Polyculture Plantations with Big-Leaf Mahogany

Cited by 7 publications

References 61 publications

Good news! Sampling intensity needed for accurate assessments of dung beetle diversity may be lower in the Neotropics

Good news! Sampling intensity needed for accurate assessments of dung beetle diversity may be lower in the Neotropics

Neighboring plants and core herbivores determine the importance of Swietenia macrophylla in the plant–herbivore network

Structure and diversity of hoverflies (Diptera: Syrphidae) in northwestern Colombian Paramos: towards the identification of bioindicator species in the Tropical Andes

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