https://repositorio.uema.br/jspui/handle/123456789/2009 Sun, 10 May 2026 20:53:07 GMT 2026-05-10T20:53:07Z https://repositorio.uema.br/jspui/handle/123456789/6096 Título: Composição, riqueza e distribuição de saturnidae (insecta: lepidoptera) registrados para o nordeste do Brasil Abstact: In the Northeast region of Brazil, there is little information on the diversity of Lepidoptera, with a scarcity of published surveys. The region is poorly represented in entomological collections and archives, as the greatest abundance is found in the South and Southeast regions of Brazil. This study analyzed data on the Saturniidae family in the Northeast region of Brazil, aiming to contribute to the knowledge of saturniids and compile information available in scientific studies and digital platforms containing data from entomological collections of material from the Northeast, thus mapping their distribution. To this end, a data survey was conducted in the Northeast region, which is the Brazilian region with the largest number of biomes: Amazon, Cerrado, Caatinga, and Atlantic Forest, forming a phytophysiognomic mosaic with extensive ecotone areas that possess unique ecosystems. The survey of studies and analysis of digital databases led to the creation of a list containing all published records for the study area. The list includes information such as: title of the work, author, locality (state, city), and species. Based on the results presented, this work makes a significant contribution to the knowledge and understanding of the Saturniidae family in the Northeast region of Brazil. This information resulted in a list compiling all published records of Saturniidae for the Northeast region of Brazil, totaling 176 records distributed across its nine states. Thu, 22 Feb 2024 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6096 2024-02-22T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/6095 Título: Composição da Mirmecofauna (Hymenoptera: Formicidae) em uma área de Cerrado sob pastejo bovino, Caxias, Maranhão Abstact: The structure of the soil ant community and its modifications depend on environmental factors, vegetation type, fires, temperature variations, humidity, soil management and preparation, among others. Uniformity in environments reduces the variability of ecological niches for the ant community, which decreases its taxonomic richness. In this sense, this study aimed to evaluate the composition of the soil ant fauna in areas under rotational grazing in the village of Ingá. The experimental area comprised 120 ha, divided into two 60 ha paddocks each, and in each area two parallel transects were established, and in each transect ten sampling units were marked, totaling 40 points. The first collection was carried out in April, the rainy season, and the second in October, the dry season in 2022. The collected material was identified to the genus level. For statistical analyses, a database was created using Microsoft Excel software, and for faunistic analyses, the software “R” was used. A total of 5,955 specimens were counted, distributed among eight subfamilies and 21 genera. In April, Area I (resting) had a total of 901 individuals, and Area II (grazed) had 1,275. In October, Area I (grazed) had a total of 1,968 individuals, and Area II (resting) had 1,811 specimens. Area I (resting) showed greater taxon richness in April, while Area I (grazed) showed the greatest abundance of formicids in October. The subfamilies Myrmicinae, Doryline, and Ectatomminae showed the greatest abundance of individuals. Soil temperature did not significantly affect the abundance of individuals; however, precipitation did influence the abundance of individuals. The highest Diversity Index was observed in Area I (resting) in April, while the highest Dominance Index was observed in Area II (grazed) in October. The richness estimator (Chao1) and the accumulation curves measured for the two areas studied, show that the sampling effort was not sufficient to fully measure the genera. The genera Pheidole and Crematogaster showed greater affinity with both areas and traps. Tue, 18 Jul 2023 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6095 2023-07-18T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/6087 Título: Potencial antimicrobiano da secreção da glândula metapleuralde Paraponera clavata (FABRICIUS,1775) em microrganismos Abstact: Antsliveinmicroclimaticconditionsthatfavorthedevelopmentofsomemicroorganisms.They producemechanismstomaintaincolonyhealth,andasadefensestrategy,theseinsectsdevelop exocrine glandsthatplayaroleinantibioticproduction,chemicaldefenses,andcolony immunologicaldefenses.Themetapleuralglandisofrelevantimportanceinthismatter,and theFormicidaespecies Paraponeraclavata, alsoknownasTucandeiraorTocandira,isthesole livingrepresentativeoftheParaponerinaesubfamilyandParaponeriniphylum.Therefore,this workwascarriedoutwiththeaimofanalyzingtheantimicrobialactivityofthemetapleural glandsecretionof P.clavata on fungiandbacteria,usingstrainsofthefungalspecies Candida albicans andthebacterialspecies Pseudomonasaeruginosa to confirmtheirantimicrobial potentialandtomakeasignificantcontributiontothescientificliterature.Inordertoobtainthe biologicalmaterial,thelocalizationofthenestsof P.clavata wascarriedoutandthespecimens were collectedunderauthorizationnumber65044/1bySISBioandtransferredtoartificialnests madeofplasticboxescontainingsubstratefromtheoriginalandnutritiousnestssuchasapples and honey,andthentakentotheLaboratoryofMyrmecology-LAMIRattheCaxiascampusof theStateUniversityofMaranhão-UEMAtocarryoutthecareofthecolonyandthe procurementofextractsbyextractionoftheglandsofthecollectedspecimens.Antimicrobial testswerecarriedoutattheLaboratoryofMicrobiologyandImmunologyofInfectious Diseases-LAMIDI,CampusCaxias-UEMAandweredividedintofivephases,namely:1. Obtainingextractsfromthemetapleuralglandof P.clavata, 2.Preparationofsamplesof microorganisms(P.aeruginosa and C.albicans), 3.Preparationofculturemedia(agar),4. Susceptibilitytestsand5.Antibacterialtest.microbial.Theresultswereanalyzedbyidentifying and measuringzonesofinhibitionthathadformedaroundtheintervertebraldiscswiththe extractofthemetapleuralglandonthemicroorganisms P.aeruginosa and C.albicans. Based on theobtainedresults,itwasconfirmedthattherewasanantimicrobialactivityofthe metapleuralglandsecretioninthemicroorganisms,whichwasmanifestedinseveralvariations betweenthespecies P.aeruginosa and C.albicans, withmoresignificanteffectsonthe bacterium P.aeruginosa. Thus,itwasconcludedthattheantspecies P.clavata has antimicrobial potentialinthesecretionofitsmetapleuralglandbyexertinganinhibitoryeffectonthebacterial strains P.aeruginosa and onthefungus C.albicans at concentrationsof50glandpairsandmay showgreaterpotentialathigherconcentrations. Mon, 17 Jul 2023 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6087 2023-07-17T00:00:00Z https://repositorio.uema.br/jspui/handle/123456789/6077 Título: Plantas nativas e exóticas utilizadas na arborização do bairro Centro de Caxias-MA Abstact: Studies on urban afforestation are important,asthey address a central issue regarding social well-being and maintenance of fauna and flora in urban centers. These issues are very present in the literature, where authors point out the importance of urban afforestation, given the impacts of climate change on cities. Despite this, studies that problematize urban vegetation are not frequent, in the case of Caxias-MA, there is a scarcity of them, in addition to social, environmental and professional factors, it is understood the need to carry out an analysis of tree species in the region. Therefore, this work aimed to carry out a survey of exotic and native species used in afforestation in the Centro neighborhood, municipality of Caxias – MA. The methodology was divided into three stages: fieldwork, analysis and identification and preparationof botanical material. For this purpose, the species used in afforestation were collected and identified through specialized bibliographies, virtual herbaria, identification keys and data from Flora and Funga do Brazil (2023). After identification, the species surveyed were classified as native and exotic and it was found that Azadirachta indica A. Juss (Nim), an exotic species, was the most common in the Centro neighborhood, both on public roads and in green areas, Native species are mostly found in squares and in low numbers on public roads. It was found that around 80.15% of the afforestation in the Centro neighborhood is made upof exotic species and only 19.85%are native. Only Azadirachta indica A. Juss (Nim) represents approximately 55.9% of the total number of specimens, while the most common natives belong to the Bignoniaceae family, Handroanthus impetiginosus (Mart.ex DC.) Mattos (Ipê purple), Tabebuia rosea (Bertol.) (Ipê pink) and Jacaranda brasiliana (Lam.) (rosewood), representing approximately 6% of the total afforestation. Thu, 22 Feb 2024 00:00:00 GMT https://repositorio.uema.br/jspui/handle/123456789/6077 2024-02-22T00:00:00Z