The aim of this study was to characterize the leaf-litter entomofauna in degraded areas under restoration process with different restoration techniques, using the native forest as a reference and ecological indexes as parameters to select bioindicator groups. The study was conducted at "Serra do Itajaí" National Park (PNSI). The survey was conducted from winter/2014 to autumn/2016. The characterization of sampled communities was performed using identification, order, families and faunal indexes such as frequency, constancy and dominance. Overall, 11,241 insects from 57 taxonomic groups were collected in pitfall traps. The native forest showed the greatest richness observed. Groups classified as frequent, constant and dominant in all environments were the Formicidae family and Diptera Order. Significant differences were observed in the frequencies of Ptiliidae, Staphylinidae and Cicadellidae families and also Diptera Order. Coleoptera Ptiliidae, Staphylinidae families and Scolytinae subfamily showed potential as bioindicators of environmental quality at PNSI.
Insects stand out for their diversity, representativeness, ecological importance, and sensitivity to environmental changes that are affected by anthropogenic changes in natural ecosystems. This study aimed to characterize the leaf litter insect fauna in four different areas that included two native forests and two pastures in Serra do Itajaí National Park. Data were collected from August 2014 to August 2015 from pitfall trap installations. The abundance, richness, diversity, family composition, and functional groups were analyzed. In total, 16,062 individuals were collected that were distributed across 16 orders and 101 families. Abundance, family richness, and diversity were similar among the areas. However, the composition differed, demonstrating that the environments possessed different insect fauna communities based on the composition of families. The Coleoptera order with the Ptiliidae family was more abundant in the native forest, while the Hemiptera (Cercopidae and Cicadellidae) were more abundant in the pasture area. The composition of fungivores and phytophagous fungi differed significantly among the areas. The number of exclusive families and their composition demonstrated a leaf litter insect fauna that was adapted to the environmental conditions and resources available within each environment
A entomofauna de serapilheira destaca-se pela sua elevada abundância, diversidade, importância ecológica e sensibilidade a alterações ambientais. Dessa forma, apresentam grande potencial como bioindicadores da restauração ecológica. O objetivo deste estudo foi avaliar a dinâmica populacional e a composição da entomofauna da serapilheira (Classe Insecta) em áreas com diferentes técnicas de restauração ecológica no Parque Nacional da Serra do Itajaí. Foram determinadas quatro áreas amostrais, sendo: floresta nativa (área referência), regeneração natural, transposição de galharia e rugosidades no solo. As coletas foram realizadas no período de agosto/2014 até agosto/2015, bimestralmente, a partir da instalação de armadilha pitfall e funil de Berlese-Tüllgren. Foram analisados parâmetros de abundância, número de famílias, similaridade, composição, dinâmica populacional das famílias mais abundantes e correlação com fatores ambientais. Foi coletado um total de 16.062 indivíduos, distribuídos em 15 ordens e 104 famílias. Não foram observadas diferenças significativas na abundância e no número de famílias entre as áreas amostrais. A área de regeneração natural apresentou o maior percentual de similaridade com a área de floresta nativa. A temperatura foi único fator ambiental que influenciou significativamente na abundância das famílias Staphylinidae, Ptiliidae, Curculionidae (Coleoptera), Cercopidae, Aphidiae (Hemiptera) e Gryllidae (Orthoptera). A composição de famílias variou significativamente entre as áreas amostrais. Conclui-se que famílias da entomofauna da serapilheira apresentam potencial para uso como bioindicadores no monitoramento da restauração ecológica. A temperatura é uma variável que deve ser considerada na definição e implantação das estratégias de restauração de modo a favorecer o restabelecimento da entomofauna de serapilheira.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.