Spatio-Temporal Changes in the Structure of the Ant, Bee, and Tree Communities in the Brazilian Cerrado

Maravalhas, Jonas B.; Tosta, Thiago Henrique Azevedo; Augusto, Solange Cristina; Araújo, Bruna Borges; Rosa, Thaynah F.; Vasconcelos, Heraldo L.

doi:10.4257/oeco.2020.2402.15

Cited by 6 publications

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“…The taxonomy and inventories of ants are especially advanced in the Atlantic Forest and Cerrado biomes. Repeated samples of arboreal ant communities have been carried out in a Cerrado PELD (long-term ecological research) project site [24]. In six samples over 14 years, no decline in richness was noted, but fires altered community composition noticeably.…”

Section: Resultsmentioning

confidence: 99%

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Insect decline in Brazil: an appraisal of current evidence

et al. 2022

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Recent reviews of data on worldwide insect decline include almost no information on Brazil. We gathered evidence from literature searches and a survey sent to researchers, to which 96 replied and 56 provided information and publications. We present 75 instances of trends recorded over an average span of 11 years for aquatic and 22 years for terrestrial insects. These include time-replicated samples and expert opinion based on long-term local collections. Most terrestrial data are for butterflies, bees and scarab beetles. Aquatic studies include several insect orders, usually sorted to genus or family. Terrestrial insects showed significantly more cases of declines than increases, both in abundance (17 : 3) and in diversity (11 : 1). In aquatic cases, no tendency was detected in abundance (2 : 2) or diversity (3 : 4), not counting cases with no trend. Differences in these results among habitats may be due to the shorter span and less change in environmental conditions in the aquatic surveys, which included sites already degraded before sampling. We offer guidelines for future long-term assessments, including resampling of legacy collection sites.

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Section: Resultsmentioning

confidence: 99%

Section: (C) Antsmentioning

confidence: 99%