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Pentastomida are lung parasites of a variety of hosts, mainly reptiles. Raillietiella is the genus with the largest number of species, whose taxonomic identification is still largely based on morphological data alone. In this classification, differences divide the genus into morphotypic groups. The Raillietiella parasites of insectivorous lizards, for example, are divided into "Group I" with species with hooks with sharp tips and "Group II" with posterior hooks with blunt tips. In the present work, we used molecular analysis to infer the morphological variation in hooks and size of specimens of Raillietiella mottae, parasites of several species of insectivorous lizards. Our results demonstrate that morphological differences comprise a phenotypic plasticity of a single species, whose variation is associated with host species, with females being larger and with hooks with blunt tips in nocturnal geckos and smaller ones with sharp tips in diurnal insectivorous lizards of different species, sizes, and habitats.

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A new termite species, Cryptotermespugnussp. nov., is described from northeastern Brazil. The winged imago of C.pugnus is distinguished from most congeners by the lack of arolia and the multiple branches connecting the median vein to the radial sector. The soldier is unique among South American Cryptotermes by its cuboidal head capsule and very rugose postclypeus. The new species constitutes the fourteenth Cryptotermes species on the continent for which we provide a key to soldiers.

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Abstract The Brazilian state of Acre is located in the southwestern Amazon and it is characterized by a humid tropical forest vegetation that covers plains and mountains. Up to this point, the composition of termite species in the state is not known. The aim of this study was to provide a checklist of termite species or recognizable taxonomic units for the state of Acre. Sampling was conducted through field expeditions at the Serra do Divisor National Park, Chandless State Park, Humaitá Forest Reserve, and Chico Mendes Environmental Park using a standardized rapid termite inventory protocol in the first two areas and active searching collections in the others, without a specific protocol. This study also included occurrence records published in the scientific literature. A total of 128 species and morphospecies of termites were found in Acre, distributed across 59 genera and four families. The most frequently occurring species in Acre was Heterotermes tenuis (Hagen, 1858). The study also identified six new species records for Brazil. The predominant feeding groups were soil-feeders and wood-feeders, as expected from data obtained from surveys in humid tropical forests. Despite the significant number of new records for Acre (112), it is concluded that a larger sampling effort is still required, as many areas of the state have not yet been studied for termites.

Resumen O estado brasileiro do Acre está localizado no sudoeste da Amazônia e é caracterizado por uma vegetação de floresta tropical úmida que cobre planícies e montanhas. Até então, a composição de espécies de térmitas no estado não é conhecida. O objetivo desse estudo foi construir um checklist de espécies ou unidades taxonômicas reconhecíveis de térmitas para o estado do Acre. A amostragem foi conduzida através de expedições de campo no Parque Nacional da Serra do Divisor, no Parque Estadual Chandless, na Reserva Florestal Humaitá, e no Parque Ambiental Chico Mendes utilizando o protocolo rápido de diversidade de térmitas nas duas primeiras áreas e coletas avulsas nas demais, sem um protocolo específico. Este estudo também incluiu registros de ocorrência publicados na literature científica. Um total de 128 espécies e morfoespécies de térmitas foram encontradas no Acre, distribuídas em 59 gêneros e quatro famílias. A espécie de ocorrência mais frequente no Acre foi Heterotermes tenuis (Hagen, 1858). O estudo também identificou seis novos registros de espécies para o Brasil. Os grupos alimentares predominantes foram os humívoros e xilófagos, como esperado a partir de dados obtidos de pesquisas em florestas tropicais úmidas. Apesar do número significativo de novos registros para o Acre (112), conclui-se que ainda é necessário um esforço amostral maior, uma vez que muitas áreas do estado ainda não foram estudadas para térmitas.

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With the objective of stimulating the production and licensing of new technologies, the National Institute of Industrial Property (INPI), the agency responsible for granting patents in Brazil, created a priority or fast track procedure for patent processes related to innovations that can be used against COVID-19. The first effects of this institutional measure are assessed in the present work, based on the identification and analysis of the time elapsed between fast track requests by the Ministry of Health or through petition by the depositors themselves. The results demonstrate that the INPI was able to successfully respond to the public health emergency by granting patents on average 5.3 months after the fast track request, a time considerably shorter than the average required in usual processes.

Con objeto de estimular la producción y el otorgamiento de licencias de nuevas tecnologías, el Instituto Nacional de la Propiedad Industrial (INPI), entidad autónoma responsable de la concesión de patentes en Brasil, creó una modalidad de trámite prioritario para los procesos de concesión de patentes relativas a innovaciones que puedan emplearse en la lucha contra la COVID-19. En este trabajo se evaluaron los primeros efectos de esa medida institucional, al determinar y analizar la duración de los procesos prioritarios de concesión de patentes solicitados por medio de comunicación oficial del Ministerio de Salud o de una petición presentada por los propios solicitantes. Los resultados demuestran que el INPI pudo atender con éxito la emergencia de salud pública, al conceder patentes en un período promedio de 5,3 meses contados a partir de la fecha de presentación de la solicitud de priorización, un tiempo considerablemente inferior al promedio exigido en los procesos habituales.

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[RESUMO]. Com o objetivo de estimular a produção e o licenciamento de novas tecnologias, o Instituto Nacional da Propriedade Industrial (INPI), autarquia responsável pela concessão de patentes no Brasil, criou uma moda- lidade de trâmite prioritário para processos de patentes relativos a inovações que possam ser usadas no combate à COVID-19. Os primeiros efeitos dessa medida institucional foram avaliados no presente trabalho, a partir da identificação e análise do tempo dos processos prioritários de patente solicitados por ofício pelo Ministério da Saúde ou por meio de petição pelos próprios depositantes. Os resultados demonstram que o INPI foi capaz de atender de forma exitosa à emergência de saúde pública, concedendo patentes em um período médio de 5,3 meses a contar do pedido de priorização, um tempo consideravelmente inferior à média exigida nos processos usuais.

[ABSTRACT]. With the objective of stimulating the production and licensing of new technologies, the National Institute of Industrial Property (INPI), the agency responsible for granting patents in Brazil, created a priority or fast track procedure for patent processes related to innovations that can be used against COVID-19. The first effects of this institutional measure are assessed in the present work, based on the identification and analysis of the time elapsed between fast track requests by the Ministry of Health or through petition by the depositors themsel- ves. The results demonstrate that the INPI was able to successfully respond to the public health emergency by granting patents on average 5.3 months after the fast track request, a time considerably shorter than the average required in usual processes.

[RESUMEN]. Con objeto de estimular la producción y el otorgamiento de licencias de nuevas tecnologías, el Instituto Nacio- nal de la Propiedad Industrial (INPI), entidad autónoma responsable de la concesión de patentes en Brasil, creó una modalidad de trámite prioritario para los procesos de concesión de patentes relativas a innovaciones que puedan emplearse en la lucha contra la COVID-19. En este trabajo se evaluaron los primeros efectos de esa medida institucional, al determinar y analizar la duración de los procesos prioritarios de concesión de patentes solicitados por medio de comunicación oficial del Ministerio de Salud o de una petición presentada por los propios solicitantes. Los resultados demuestran que el INPI pudo atender con éxito la emergencia de salud pública, al conceder patentes en un período promedio de 5,3 meses contados a partir de la fecha de presen- tación de la solicitud de priorización, un tiempo considerablemente inferior al promedio exigido en los procesos habituales.

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RESUMO Com o objetivo de estimular a produção e o licenciamento de novas tecnologias, o Instituto Nacional da Propriedade Industrial (INPI), autarquia responsável pela concessão de patentes no Brasil, criou uma modalidade de trâmite prioritário para processos de patentes relativos a inovações que possam ser usadas no combate à COVID-19. Os primeiros efeitos dessa medida institucional foram avaliados no presente trabalho, a partir da identificação e análise do tempo dos processos prioritários de patente solicitados por ofício pelo Ministério da Saúde ou por meio de petição pelos próprios depositantes. Os resultados demonstram que o INPI foi capaz de atender de forma exitosa à emergência de saúde pública, concedendo patentes em um período médio de 5,3 meses a contar do pedido de priorização, um tempo consideravelmente inferior à média exigida nos processos usuais.

ABSTRACT With the objective of stimulating the production and licensing of new technologies, the National Institute of Industrial Property (INPI), the agency responsible for granting patents in Brazil, created a priority or fast track procedure for patent processes related to innovations that can be used against COVID-19. The first effects of this institutional measure are assessed in the present work, based on the identification and analysis of the time elapsed between fast track requests by the Ministry of Health or through petition by the depositors themselves. The results demonstrate that the INPI was able to successfully respond to the public health emergency by granting patents on average 5.3 months after the fast track request, a time considerably shorter than the average required in usual processes.

RESUMEN Con objeto de estimular la producción y el otorgamiento de licencias de nuevas tecnologías, el Instituto Nacional de la Propiedad Industrial (INPI), entidad autónoma responsable de la concesión de patentes en Brasil, creó una modalidad de trámite prioritario para los procesos de concesión de patentes relativas a innovaciones que puedan emplearse en la lucha contra la COVID-19. En este trabajo se evaluaron los primeros efectos de esa medida institucional, al determinar y analizar la duración de los procesos prioritarios de concesión de patentes solicitados por medio de comunicación oficial del Ministerio de Salud o de una petición presentada por los propios solicitantes. Los resultados demuestran que el INPI pudo atender con éxito la emergencia de salud pública, al conceder patentes en un período promedio de 5,3 meses contados a partir de la fecha de presentación de la solicitud de priorización, un tiempo considerablemente inferior al promedio exigido en los procesos habituales.

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The composition of chemical weaponry of termite soldiers show interspecific and intraspecific variation. However, spatial effects on the qualitative and quantitative compositions of these substances in Neotropical termites are poorly known. Hexane extracts of heads and the defensive secretion of soldiers of Constrictotermes cyphergaster from four localities in Northeast Brazil were analyzed by gas chromatography and mass spectrometry. Chemical analysis allowed the detection of 54 compounds from the head extract and from the direct extraction of the defensive secretion of soldiers, and the percentage of common substances and the presence of exclusive substances varied depending on the spatial distance between colonies. The profile of the chemical armament of soldiers consists basically of terpenoids: monoterpenes (45.53%-71.97 - for head extract and 57.41% - 78.56 for secretion) and sesquiterpenes (19.69% - 35.78% for head extract and 18.41% - 33.31%for secretion). In general, the main component of the chemical arsenal, regardless of the methodology used for extraction, was α-pinene (27.98-50.44%). Two chemotypes were identified based on chemical differences between populations of ecoregions with distinct spatial-environmental and climate characteristics: (1) α-pinene <33%; (2) α-pinene >33% for both extracts (head and secretion). The results reveal a similar pattern of chemical differentiation for soldiers in both extracts (head and secretion), with increasing differences as a function of distance between the analyzed colonies.

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Introduction: The patent system is fundamental for the pharmaceutical industry development, providing a return on the large investment of time and financial resources. Among the patentability requirements, understanding how to comply with the inventive step is especially important for patent applicants. Regarding mAbs, due to the high affinity and specificity for their molecular therapeutic target, minimal structural changes can lead to unexpected properties, being a common issue among Patent Offices.Areas covered: The present research investigated the Brazilian patents covering top-selling mAbs.Expert Opinion: The more complete and detailed the mAb when the patent application is filed, the greater the chance of the patent being granted. It is necessary to disclose, at least, the six CDRs, the complete variable region, and/or the hybridoma. The Applicant shall specify faced obstacles during mAb generation, mainly if it is a common issue and resulted in improved properties. If it is possible, the Applicants shall compare the claimed mAbs to previous ones, focusing on the achieved unexpected or improved properties. After an objection by BRPTO, the Applicant shall submit data with quantitatively data about qualitative information disclosed at the Specification when filed. If applicable, show different epitope-binding and highlight clinical advantages of successful mAbs.

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The imago and soldier castes of a new Tauritermes Krishna, 1961 species, Tauritermes bandeirai sp. nov. are described. It is the fourth species of Tauritermes and occurs from the Caatinga and Atlantic Forest of Brazil. Unlike its congeners, the soldier of T. bandeirai has prominent frontal horns.

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BACKGROUND: This study aimed to analyze the chain and dynamics of the trade of wild birds between keepers and traders in an area of northeast Brazil. Profit from the purchase and sale of these animals in the trade chain was also estimated. METHODS: The information was obtained through interviews with direct participants in the wild bird trade chain. RESULTS: We recorded a total of 34 bird species involved in illegal trade. In general, the purchase and sale values of songbirds are associated with the attractiveness and songs of the birds. Regarding the commercial potential of the species, those with high numbers of traded individuals had higher average purchase values and, especially, sale values. Birds with lower purchase values showed higher sale profits and were sold in large numbers. The purchase and sale values of songbirds in the present study show a significant economic return for those involved in this activity. CONCLUSIONS: The results of this study may provide data to support future studies on the conservation of wild birds, assisting in monitoring illegal trade, a persistent problem in the region studied.

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Abstract The Atlantic Forest of South America is one of the most degraded tropical forests and the cultivation of sugarcane is considered one of the main causes. In humid forests termites stand out with regard to their abundance and functional importance. The present study aimed to compare termite assemblages of fragments of the Atlantic Forest with that of the sugarcane matrices that surround them. Collections were performed in two sugarcane plantations in Northeast Brazil. In each plantation a fragment of Atlantic Forest and an adjacent sugarcane field were sampled using a standardized termite sampling protocol. A total of 39 species and 302 encounters were recorded. Species richness, relative abundance and composition differed significantly between forests and the matrices, with the presence of exclusive species in each environment—25 in the forests and seven in the matrices. Soil feeding species of the subfamily Apicotermitinae and species of open areas were found in the matrices. There was a marked difference between the assemblages of the matrices, possibly due to soil characteristics. The majority of the species found in the matrices do not cause damage to the crop, but instead act in the processes of soil decomposition and formation, thereby contributing to increased productivity.

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Wood is the main dietary item for most termites; however, supplementation with certain nutrients may occur via the ingestion of other available food resources in the ecosystem. The objective of this study was to evaluate the consumption of lichens with different C, N, and P contents by Constrictotermes cyphergaster under laboratory conditions, and estimate the intake of this substrate by this species in a semi-arid area of Northeast Brazil. The foraging activities of fifteen field colonies were monitored over 15 days from 6:00 p.m. to 6:00 a.m., and the lichens that were consumed were identified. Blocks of lichen thallus (1.5 × 1.5 cm) of four lichen species were offered to the termites in the laboratory. The mean total consumption rate of lichen by C. cyphergaster was 0.032 mg lichen/g termite (fresh weight)/day. Dirinaria confluens was the lichen most consumed by termites (0.010 mg lichen/g of termite (fresh weight)/day), followed by Lecanora spp. and Haematomma persoonii at a mean consumption of 0.008 and 0.006 mg lichen/g termite (fresh weight)/day, respectively. Based on the size of the C. cyphergaster populations, the estimated lichen consumption rate was 105.12 g lichen/ha/year. Lichen consumption was significantly affected by the N content and the C:N and C:P ratios, with the N content being the factor that best explained the consumption by the termites. The results suggest that C. cyphergaster can use lichens as a supplemental source of nutrients, especially nutrients that are found in low concentrations in wood.

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Abstract: Wet enclaves of montane forests in Caatinga domain, locally known as "Brejos de Altitude", are associated with plateau at altitudes greater than 500 m a.s.l. and to orographic rainfall. Termite assemblage structures were studied in two areas of montane forest (Brejo de Altitude) located in the municipalities of Bezerros and São Vicente Ferrer, Pernambuco State, Brazil. Sampling was performed in 65 x 2 m transects, totaling 300 m2/per area; the densities of nests in each area were estimated using six 1300 m2 plots. A total of 35 morphospecies were recorded that belonged to 21 genera and three families, with 133 encounters. The soil-feeders feeding group predominated, followed by wood-feeders species. A total of five species constructing conspicuous nest were recorded in the two areas. The mean density of active conspicuous nests was 2.6 ± 6.3 nests/ha (mean ± sd) in Bezerros, and 21.8 ± 21.4 nests/ha in São Vicente Ferrer. Termite richness in the study areas were within the amplitude ranges recorded in other montane forests. Thus, the results presented here, combined with data from literature, reinforce need additional studies of the termite fauna in montane forest areas, once the "Brejos" are currently under high ecological pressure and their preservation is urgent.

Resumo: Enclaves de floresta úmida de altitude nos domínios da Caatinga, localmente conhecidos como "Brejos de Altitude", estão associados a áreas com mais de 500 m de altitude e às chuvas orográficas. O presente estudo teve como objetivo caracterizar a estrutura da taxocenose de térmitas em duas áreas de Brejo de Altitude localizadas nos municípios de Bezerros e São Vicente Ferrer, Estado do Pernambuco, Brasil. A amostragem foi realizada através de transectos de 65 m x 2 m, totalizando 300 m2/por área. Em cada área, a densidade de ninhos foi estimada em seis parcelas de 1300m2. Trinta e cinco morfoespécies foram registradas nas duas áreas, pertencentes a 21 gêneros e três famílias, com 133 encontros. O grupo alimentar dos humívoros foi predominante, seguido pelos xilófagos. Um total de cinco espécies construtoras de ninhos conspícuos foram registradas nas duas áreas. A densidade média de ninhos conspícuos ativos foi de 2,6 ± 6,3 ninhos/ha (média ± dp) em Bezerros, e de 21,8 ± 21,4 ninhos/ha em São Vicente Ferrer. A riqueza de térmitas das áreas estudadas ficou dentro da amplitude já registrada para áreas de Brejo de Altitude. Assim, os resultados aqui apresentados, combinados com dados da literatura, reforçam a necessidade de estudos adicionais da fauna de térmitas em áreas de floresta montana, uma vez que os Brejos estão atualmente sob alta pressão ecológica e sua preservação é urgente.

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Abstract Treehopper assemblages were sampled in four semi-arid areas of caatinga in Northeast Brazil during the rainy seasons of 2016 and 2017, using three different capture methods. The areas are located in two Ecoregions of the Caatinga: "Depressão Sertaneja Setentrional" (Northern Sertaneja Depression) and "Planalto da Borborema" (Borborema Plateau). A total of 2,394 individuals of 43 species were sampled, corresponding to approximately 87% of the mean estimated species richness for all four areas. The species richness varied among the areas from 14 to 21, while the abundance of individuals ranged from 129 to 1860. Eighteen species were shared among areas, of which only Enchenopa eunicea, Sundarion sp. 1, Ceresa vitulus and Erosne parvula occurred in all four due to the general behavior of the first three and the wide distribution of host plant of Erosne parvula - Mimosa tenuiflora. Twenty-five species occurred only in one area, of which 23 were categorized as rare with a maximum of eight individuals sampled, and seven with only one individual collected (singletons). Considering that the Caatinga Domain possesses at least nine Ecoregions with different climates, geomorphology and vegetation, along with marked endemism of plants, it is expected that the species richness of treehoppers will increase substantially on a regional scale.

Resumo As taxocenoses de membracídeos foram amostradas em quatro áreas de Caatinga do semiárido do Nordeste brasileiro, durante a estação chuvosa de 2016 e 2017, utilizando três métodos distintos de captura. Essas áreas estão inseridas em duas Ecorregiões da Caatinga, Depressão Sertaneja Setentrional e Planalto da Borborema. Um total de 2.394 indivíduos pertencentes a 43 espécies foram amostrados, correspondendo a aproximadamente 87% da riqueza de espécies média estimada para o conjunto das quatro áreas. A riqueza de espécies por área variou de 14 a 21, enquanto a abundância de indivíduos variou de 129 a 1860. Dezoito espécies foram compartilhadas, mas apenas Enchenopa eunicea, Sundarion sp. 1, Ceresa vitulus e Erosne parvula ocorreram em todas as áreas, em decorrência do comportamento generalista das três primeiras espécies e da distribuição ampla da planta hospedeira de Erosne parvula - Mimosa tenuiflora. Vinte cinco espécies foram exclusivas, ocorrendo em apenas uma das áreas, sendo 23 dessas categorizadas como raras, com no máximo oito indivíduos amostrados, e sete com apenas um único indivíduo coletado (singletons). Tendo em vista que o Domínio da Caatinga possui, pelo menos, nove Ecorregiões, com diferentes características de clima, geomorfologia e vegetação, inclusive com uma marcante taxa de endemismo de plantas, há expectativa que a riqueza de espécies de membracídeos possa aumentar substancialmente numa escala regional.

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Termites are abundant arthropods in tropical ecosystems and actively participate in the process of litter decomposition. The objective of this study was to evaluate the population structure of Microcerotermes indistinctus in arboreal nests and to estimate their contribution to the consumption of wood litter in an area of Caatinga, a type of seasonally dry tropical forest located in the Brazilian semi-arid region. The populations of fifteen nests were quantified and separated into castes, "larvae", and eggs. Wood blocks of four typical Caatinga species were offered to termites under laboratory conditions. Litter production was estimated in the area over the course of one year. The mean population size of M. indistinctus was 73,897 individuals/nest, while the mean nest density in the area was 25 active nests/ha. Total consumption of the four types of wood was estimated to be 10.5 mg of wood/g termite (fresh weight)/day. Based on consumption and population size, M. indistinctus consumes 0.35% of the total litter and 1.71% of the annual production of branches and twigs in the area. Wood-consuming termites are highly affected by anthropogenic disturbances in the semi-arid region of Brazil, putting the ecosystem services they perform related to the process of litter decomposition at risk.

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INTRODUCTION: Countries have traditionally been split into two major groups: developed or industrialized ("the North") and developing or underdeveloped ("the South"). Several authors and organizations have challenged this classification to recognize countries that have reached an intermediate stage of social and economic development. As proposed by Morel and collaborators in 2005, the concept of Innovative Developing Countries (IDCs) defines a group of nations with impactful scientific programs. Here, IDCs are reexamined by a variety of metrics to highlight their role in health innovation through research and development (R&D) programs on neglected tropical diseases (NTDs) that also positively impact epidemic preparedness. RESULTS: To address the global changes due to expanding globalization we updated the original indicator of the number of USPTO patents deposited by individual countries per GDP and per capita to the number of international patents applications, related to applicant residence and deposited under the Patent Cooperation Treaty (PCT) per GNI (or GDP) and per capita. A comparison of the originally described ranking of top innovative countries to those in the present study revealed new members that updated the list of IDCs and showed a prominent role now played by China. Analyzing scientific publications in international journals since the introduction of the IDC concept in 2005 we found that IDCs do prioritize Neglected Tropical Diseases (NTDs) as an area of research. Finally we investigated the role of IDCs in two major public health emergencies between 2012 and 2016, the outbreaks of Ebola in West Africa and Zika in South America. An analysis of the co-authorship country networks demonstrated an important role for IDC infrastructure and personnel in the prevention and control of these epidemics. DISCUSSION AND CONCLUSIONS: Different techniques can be used to evaluate and measure innovative performance of countries. Country rankings published by traditional indexes, such as the Bloomberg Innovation Index (BII) and the Global Innovation Index (GII), only include high income economies among the top 20 performers. This is in sharp contrast to our approach, which identified 8-9 IDCs among the first 25 with China occupying the top position. Through an analysis of the pros and cons of the different methodologies, the IDC concept challenges more conventional approaches to address and estimate the innovative capacity of countries.

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This study aims to investigate the microbiological potential of the termite species Constrictotermes cyphergaster (Silvestri, 1901) and its support plants. We collected five C. cyphergaster nests from three different support plant species. Microbiological assays were performed on these extracts using the serial microdilution method in triplicate to measure the minimum inhibitory concentration (MIC) of each microorganism for the analysed extract. The ethanol extracts of the termite C. cyphergaster showed no significant activity against strains of Staphylococcus aureus and Escherichia coli, with an MIC >1000 µg mL-1. Only the extracts of the nests and termites with the nest had the same MICs. These results were in contrast to the extracts of Spondias tuberosa (Umbuzeiro), Poincianella pyramidalis (Catingueira), and Amburana cearensis (Cumaru), which demonstrated significant activity against S. aureus with MICs <1000 µg mL-1. The modulating activity of the extracts tested in the present study demonstrated potentiation of most antibiotics across the bacterial strains tested when combined with the extracts for both S. aureus and E. coli. These results indicate that the extracts tested in the present study may be composed of animal and vegetable origins with the potential to modify the activity of antibiotics and thus may aid in antimicrobial therapy.

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Abstract: In detritus-based trophic systems, springtails, dung beetles, saprophagous calyptrate flies and termites consume and fragment organic matter and control populations of decomposer microorganisms, exerting a strong influence on energy and nutrient fluxes. A faunal inventory of these four groups of hexapods was performed in Serra de Santa Catarina (SSC), an area of arboreal-shrub caatinga located in the state of Paraíba, with the purpose of characterizing the assemblages of these taxa, and highlighting their unique links to the local ecosystem. Samplings were performed in May, 2014, and April, 2015, both during the rainy season. Standard sampling protocols for biodiversity inventory of the various taxa were used, including both active and passive sampling methods. In general, 114 species of hexapods were captured, with 26 species of springtails, 20 dung beetles, 30 saprophagous calyptrate flies and 38 termites, with sampling sufficiency varying from 69.5 to 96.8% of total estimated richness. Species richness of the groups are among the highest recorded for a single area of Caatinga, with some taxa being recorded for the first time for the domain. Several morphospecies had indeterminate taxonomic status, especially springtails and termites, and are quite likely new species to science. The structure of the assemblages of springtails, dung beetles, saprophagous calyptrate flies and termites recorded in SSC, suggest that this conserved area is unique within the highly impacted landscape of Caatinga, and has great potential for the conservation of biodiversity of this domain in the Northeast Region of Brazil.

Resumo: No sistema trófico baseado em detritos, os colêmbolos, besouros escarabeíneos, moscas saprófagas e térmitas atuam no consumo e fragmentação da matéria orgânica e no controle das populações de microrganismos decompositores, exercendo forte influência nos fluxos de energia e nutrientes. Um inventário faunístico desses quatro grupos de hexápodes foi realizado na Serra de Santa Catarina (SSC), uma área de Caatinga arbóreo-arbustiva localizada no Estado da Paraiba, com intuito de caracterizar as taxocenoses desses táxons, salientando as suas peculiaridades ligadas ao ecossistema local. As coletas foram realizadas em maio/2014 e abril/2015, durante o período chuvoso na região. De acordo com o táxon, foram utilizados protocolos amostrais padronizados para inventários de biodiversidade, com métodos passivos e ativos de coleta. No geral, 114 espécies de hexápodes foram capturadas, sendo 26 de colêmbolos, 20 de besouros escarabeíneos, 30 de dípteros e 38 de térmitas, com suficiência amostral variando de 69,5 a 96.8% da total estimada. A riqueza de espécies por grupo está entre as maiores para uma única área de Caatinga, com alguns táxons sendo registrados pela primeira vez para o domínio. Especialmente para os colêmbolos e térmitas, várias morfoespécies tiveram seus status taxonômicos indeterminados, havendo elevada possibilidade de serem nova para a ciência. As estruturas e funcionalidades das taxocenoses de colêmbolos, besouros escarabeíneos, moscas saprófagas e térmitas registradas na SSC, sugerem que esse ecossistema é singular, dentro de um cenário generalizado de impacto antrópico presente na Caatinga, e possui um elevado potencial para a conservação da biodiversidade desse domínio no nordeste brasileiro.

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The spatial distribution of abiotic resources and environmental conditions can vary at small scales within terrestrial ecosystems, influencing the composition of soil fauna. Epiedaphic springtails (Collembola) of a semiarid Caatinga ecosystem were studied to determine if factors related to vegetation structure, such as species richness, aerial biomass, litterfall, and soil characteristics (pH, granulometry and soil organic matter), influence species richness and abundance of this group. A total of 5,513 individuals were collected of 15 species distributed in 13 genera and 9 families. The most abundant species were Temeritas sp., with 2,086 (38% of the total abundance) individuals, and Neotropiella meridionalis (Arlé, 1939), with 1,911 (35% of the total abundance) individuals. None of the variables in the regression model were significantly related to Collembola species richness, but abundance was significantly related to plant species richness, aerial biomass and soil pH. Thus, even at a small spatial scale, habitat heterogeneity influences the epiedaphic Collembola in the Caatinga ecosystem, especially their abundance.

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The spatial distribution of abiotic resources and environmental conditions can vary at small scales within terrestrial ecosystems, influencing the composition of soil fauna. Epiedaphic springtails (Collembola) of a semiarid Caatinga ecosystem were studied to determine if factors related to vegetation structure, such as species richness, aerial biomass, litterfall, and soil characteristics (pH, granulometry and soil organic matter), influence species richness and abundance of this group. A total of 5,513 individuals were collected of 15 species distributed in 13 genera and 9 families. The most abundant species were Temeritas sp., with 2,086 (38% of the total abundance) individuals, and Neotropiella meridionalis (Arlé, 1939), with 1,911 (35% of the total abundance) individuals. None of the variables in the regression model were significantly related to Collembola species richness, but abundance was significantly related to plant species richness, aerial biomass and soil pH. Thus, even at a small spatial scale, habitat heterogeneity influences the epiedaphic Collembola in the Caatinga ecosystem, especially their abundance.(AU)

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