New locality record of Discothyrea neotropica (Bruch, 1919)&amp;nbsp;(Hymenoptera, Formicidae) for Argentina and remarks on its&amp;nbsp;distribution

Arcusa, Juan Manuel; Cicchino, Armando Conrado

doi:10.15560/13.5.635

Cited by 2 publications

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“…The results suggest that this species occurs in fragments of the Atlantic Forest with a heterogeneous adjacency and a higher percentage of native Atlantic Forest vegetation. However, Arcusa & Cicchino (2017) reported that D. neotropica also inhabits pastures in the Pampas Region, which are considered areas of low environmental complexity.…”

Section: Resultsmentioning

confidence: 99%

What do different landscapes of the Atlantic Forest reveal about the occurrence of Discothyrea Roger, 1863 (Formicidae: Proceratiinae)?

et al. 2020

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Discothyrea is a genus composed of specialist predatory species rarely recorded and with little known biology. Specimen collection is usually associated with preserved native vegetation. In this work, we explore the landscape of sites with occurrence of Discothyrea seeking to improve knowledge about the natural history of this genus. Species of Discothyrea were recorded in ten Atlantic Forest sites. We analyzed the landscape around the place of occurrence of each species using a 500-m buffer. We classified the landscape as heterogeneous and homogeneous according to the percentage of natural (native vegetation), urban, and rural areas. We found 67 specimens of Discothyrea; 59 of them were D. sexarticulata, occurring in 88% of the fragments. There were also eight specimens of D. neotropica occurring in 12% of the fragments. The results show that D. sexarticulata can be found in homogeneous landscapes with anthropic influence (0-51% of rural area and 0-68% of urban area). Discothyrea neotropica is found in heterogeneous landscapes with a dominant presence of native vegetation (between 74-95%). The results improve knowledge on the biology of Discothyrea mainly in relation to the vicinity of occurrence sites. In addition, the results indicate that regional studies are important to understand species ecology.

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Section: Resultsmentioning

confidence: 99%

What do different landscapes of the Atlantic Forest reveal about the occurrence of Discothyrea Roger, 1863 (Formicidae: Proceratiinae)?

et al. 2020

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“…Regarding ant composition, it is important to note that although most species are common in the three areas, like Pseudomyrmex pallidus (Smith, F., 1855), Trachymyrmex fuscus Emery, 1834 and Dorymyrmex brunneus Forel, 1908, for example, occurred only in area 3, which indicates that these species have a high resistance to impacts such as the fire in the Cerrado. Indeed, the genus Dorymyrmex Mayr, 1866 was previously associated with disturbed areas and with little vegetation cover (CUEZZO; GUERRERO, 2012;ARCUSA, 2017), while there are no records for the other species (TABLE 1). Moreover, in the area, 2 the occupancy of some generalists genera such as Mycocepurus, Crematogaster, Ondontomachus, and Pachycondyla, indicates a recovery of the previous conditions of this habitat after four months of the disturbance, since these species need specifics resources such as fruits, nectar, carcasses, and seed arils to survive (BACCARO et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

The effect of anthropic fires on ant assemblage in the Cerrado of Southeastern Brazil

Oliveira

Santos

Nascimento

et al. 2022

R. Agrogeoambiental

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The Cerrado is the second largest biome in South America and due to its great species, richness, and environmental degradation, is considered a biodiversity hotspot. Fires in Cerrado can occur both naturally and through anthropic influence. However, due to the latter, the occurrence of fires has been increasingly frequent, as well as its impact on biotic communities. Ants’ colonies are widely used in studies of environmental impacts because of their responsiveness to environmental changes and easiness for their data to be analyzed. Here, the structure of the ants’ community in Cerrado environments at different areas post-fire times (two and four months, and a control area) in Itumirim, Minas Gerais, Brazil, was evaluated. Attractive baits were used as sampling methods, and found 48 species of ants belonging to 18 genera. Species richness was the same in all areas, showing that both two and four months after the fire occurrences seem to be enough to recover the ant population of these areas. Regarding ant composition, there were important differences, especially between the control area and the four months post-fire area. Moreover, vegetal biomass and vegetation covers only influenced ant composition. Here, it was found that species composition seems to be a better indicator of the responses of ant communities to post-fire effects, and can be used as a tool in monitoring programs.

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New locality record of Discothyrea neotropica (Bruch, 1919) (Hymenoptera, Formicidae) for Argentina and remarks on its distribution

Cited by 2 publications

References 0 publications

What do different landscapes of the Atlantic Forest reveal about the occurrence of Discothyrea Roger, 1863 (Formicidae: Proceratiinae)?

What do different landscapes of the Atlantic Forest reveal about the occurrence of Discothyrea Roger, 1863 (Formicidae: Proceratiinae)?

The effect of anthropic fires on ant assemblage in the Cerrado of Southeastern Brazil

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