scholarly journals Zooplankton diversity in Acre state, Amazon, Brazil: an overview of previous studies

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Larissa Araújo dos Santos ◽  
Andressa Crystine Souza da Silva ◽  
Pedro Paulo Pereira ◽  
Ronnilda Maria Gonçalves Araujo ◽  
André Ricardo Ghidini

Abstract: This work assesses current knowledge of zooplankton biodiversity in aquatic ecosystems of the state of Acre (Brazil). A bibliographic survey was undertaken, showing that most of the reported studies have focused on zooplankton diversity and composition. Fifteen locations have been studied. There is still a scarcity of information concerning zooplankton populations in the Amazon region. To date, 170 species of planktonic rotifers have been recorded, distributed in 26 families and 38 genera, together with 18 species of cladocerans, distributed in 8 families and 18 genera, and 4 species of copepods in 2 families and 6 genera. The results indicate the need for further research concerning the biodiversity of this group of organisms at locations in the basins of the Purus and Juruá Rivers, especially in lotic ecosystems and littoral zones, given the present lack of information and the socioeconomic importance they play in the region.

Check List ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 1909 ◽  
Author(s):  
Gerson P. Lopes ◽  
Tamily C. M. Santos ◽  
Paúl M. Velazco

Abstract: The present note reports the first record of Vampyrodes caraccioli in the Brazilian state of Amazonas, and the central Amazon region, based on 44 specimens caught in the Auati-Paraná Extractive Reserve, north bank of the Solimões/Amazonas River. Our record fills a distribution gap of this species in the Brazilian Amazon and illustrates that the current knowledge on the distribution of Amazonian bats is far from complete.


2010 ◽  
Vol 3 ◽  
pp. PRI.S3693 ◽  
Author(s):  
Hang Fai Kwok ◽  
Craig Ivanyi ◽  
Andrew Morris ◽  
Chris Shaw

Traditionally man has looked to nature to provide cures for diseases. This approach still exists today in the form of ‘bio-prospecting’ for therapeutically-active compounds in venoms. For example, the venoms of many reptiles offer a spectacular laboratory of bioactive molecules, including peptides and proteins. In the last 10–15 years, there have been a number of major proteomic and genomic research breakthroughs on lizard venoms. In this current review, the key findings from these proteomic and genomic studies will be critically discussed and suggestions will be offered for future focused investigations. It is our intention that this article will not only provide a comprehensive picture of the state of current knowledge of the components of lizard venoms, but also engender awareness in readers of the need to protect and conserve such uniquely precious natural resources for several reasons, including the potential benefit of humankind.


2021 ◽  
Vol 3 (144) ◽  
pp. 64-71
Author(s):  
Yuriy V. Katayev ◽  
◽  
Valeriy S. Gerasimov ◽  
Vladimir I. Ignatov ◽  
Zoya N. Mishina ◽  
...  

The repair industry in almost all countries has entered a critical period, characterized by the need to combine and use various strategies and technologies for maintenance and repair of new equipment, as well as equipment produced many years ago. (Research purpose) The research purpose is in analyzing the state of the repair and maintenance base of the agro-industrial complex and justifying the possibilities of its modernization using intelligent technologies. (Materials and methods) Authors used methods of generalizing data from various services of agro- industrial formations of individual regions, materials of scientific and technical literature and research developments, studied data on the practical use of modern resource-saving technologies by engineering services of the agro-industrial complex of the regions when carrying out repairs and service and technological services. (Results and discussion) The lack of information about the state of the repair and maintenance base makes it difficult to determine all the criteria associated with the transition of manufacturers to a contract of the entire life cycle. Obtaining information about the state of the repair and maintenance base of the agro-industrial complex is a very important stage that contributes to the modernization of this base and attracting not only the governments, but also agricultural machinery manufacturers to modernization. (Conclusions) The technological level of the enterprises of the repair and maintenance base of agriculture has significantly decreased in recent years, and this has affected the decline in technical readiness indicators, which confirms the need to conduct research and implement in practice the main measures related to the modernization of the specified repair and maintenance base.


Author(s):  
Wojciech Sowa

Thracian belongs to the group of languages spoken over the entire period of Antiquity in the areas of south-eastern Europe (mostly the Balkans) and which, like other vernaculars spoken in this and neighbouring areas, had died out by the end of the Roman period leaving but scanty evidence. This chapter provides an introduction into the state of our current knowledge about the Thracian language and epigraphy and the perspectives of research of this language. Since our comprehension and understanding of grammatical system of Thracian is limited, the current knowledge of the language makes any translation of attested inscriptions impossible. It is however expected that the progress in studying development and history of the Greek script may provide us with new and relevant data for interpretation of Thracian.


2014 ◽  
Vol 4 (2) ◽  
pp. 1 ◽  
Author(s):  
Tiberio C. Monterrubio-Rico ◽  
Juan Felipe Charre Medellín ◽  
Cristina Z. Colín-Soto ◽  
Livia León Paniagua

 RESUMEN Los mamíferos silvestres han sido estudiados en Michoacán desde el siglo XVIII por renombrados zoólogos y naturalistas. Sin embargo, todavía en 1949 se reconocía solo 85 especies, y hasta el año 2005 se proporcionó estimaciones completas basadas en integración de registros disponibles tanto nacionales como de colecciones científicas internacionales, ya que la información disponible para el estado se encontraba dispersa. Como resultado de proyectos recientes con nuevos registros, el objetivo de este análisis es proporcionar una cifra actualizada sobre la riqueza taxonómica de los mamíferos silvestres terrestres en el estado de Michoacán. Existen registros de 161 especies en 9 Ordenes, 25 familias, y 94 géneros que representan el 32% de las especies de México. El Orden con mayor número de especies es Chiroptera con 74 especies que representan el 53% de las especies del Orden en México. A pesar de la ubicación central de Michoacán en el país, y ser un estado muestreado por numerosos investigadores, todavía existe carencia de información para regiones remotas, y en algunos grupos de mamíferos. Por ejemplo, el jaguar, que a pesar de ser el mayor felino del país, se carecía de confirmación para el estado, afortunadamente durante 2010 se localizó una población en el estado. Otro aspecto limitante para la interpretación adecuada de la estimación actual, es la antigüedad de muchos registros, ya que los estudios más completos realizados a escala regional, como en la costa Michoacana son de hace 30 años, y durante ese periodo se ha incrementado la deforestación de selvas tropicales, por lo que desconocemos la situación actual que presentan las poblaciones de mamíferos en el estado. En Michoacán encuentran su límite más norteño en el Pacífico tres especies de amplia distribución en el Neotrópico, Tamandua mexicana,  Potos flavus y Sphiggurus mexicanus, por lo que deben limitarse áreas que protejan sus poblaciones. Palabras clave: Distribución, Mochoacán, mamíferos, especies.ABSTRACT The wild mammals in Michoacan state have been studied since the XVIII century by reknown zoologists and naturalists. However, still in 1949 only 85 mammals species were recognized, and until 2005 a complete estimate based on the integration of national and international data bases records available from Scientific collections, since all available information was scattered. As a result of recent surveys with new records, the aim of this analysis was to provide an updated statistic of the terrestrial wild mammals taxonomic richness in the Michoacan state. Available records correspond to 161 species in 9 Orders, 25 families and 94 genera which represent 32% of the Mexican mammal species. The Order with the major number of species is Chiroptera that includes 74 species thet represent 53% of the Order in Mexico. Despite its central location in the country, and considering that the state has been surveyed by several prestigious academics, there is still a lack of information for remote regions, and for some mammal groups. For example, the jaguar, even though constitute the largest wild felid in the country, no information was available for the state, fortunately during 2010 a population was localized in the state. Another limiting factor for the adequate interpretation of the current estimate is that many records are outdated, since the most complete studies performed at a regional scale, like in the Michoaca coast, are 30 years old, and during that time-frame, tropical forest loss increased dramatically, for instance, the current situation that present the mammal populations in the state are unknown. In Michoacan three species with a broad neotropical distribution present its northernmost limit on the Pacific, Tamandua mexicana, Potos flavus, and Sphiggurus mexicanus and there is the need to establish protected areas oriented to protect their populations. Key words: Distribution, Michoacan, mammals, species.


2021 ◽  
Author(s):  
Isaac Rêgo Purificação ◽  
Allêh Kauãn Santos Nogueira ◽  
Matheus Araújo de Souza ◽  
Camila de Almeida Costa Alencar ◽  
Sancha Mohana Brito Goes Rios

Background: Cerebrovascular disease (CVD) is the world 2nd death cause and the main cause of disability. Nevertheless, there is a lack of information regarding the mortality profile for this etiology in the last decade. Objective and Methods: Using prospectively collected data available in TabNet (DataSUS) platform, a descriptive and cross-sectional study was conducted. The primary objective is to access the demographic information most associated with DCV mortality in individuals older than 50 years-old, in São Paulo (SP), from 2010 to 2019. Results: The highest mortality in the state of SP was in 2019 (16,945 deaths), according to the growing trend; in the 2010-2019 period, the annual mean by city of deaths (± standard deviation [SD]) was 14,885 (± 1,341). During these years, the number of deaths was higher in the municipality of São Paulo (57,013; 31%). The annual mean deaths (± SD) in the capital and in the interior cities were, respectively: 4,684 (± 269) and 31 (± 58). The age groups from 70 to 79 years and over 80 years were the most affected. Caucasian race represents 71% of deaths. Individuals with 1 to 3 years of school were more affected (38%). The ratio of male deaths to female deaths was 1.02. Conclusion: In the last decade, there was an increasing mortality by CVD among the elderly population, and the city of São Paulo leads the number of cases.


2021 ◽  
Vol 79 ◽  
pp. 7-30
Author(s):  
Michał Cecelski ◽  
Robert Piec ◽  
Barbara Szykuła-Piec

After conducting a document review, the authors found no reports concerning the influence of biological factors, such as blood, mould, and dirt, on the durability of rescue ropes. This study aims to answer the question of whether and how selected biological factors affect static rope 10.5, which is frequently used by firefighters for rescues. In the first stage of the research, focus studies were conducted among fifteen members of the Specialist High-Rescue Group in Plock (Poland), which aimed to determine the state of knowledge about the impact of biological factors on the strength of rope. The results indicated that the group had knowledge as to the impact of physical and chemical factors on the rope; however, a lack of information on the impact of biological factors was identified. In the second stage, the force necessary to break static rope contaminated with selected biological agents was measured. To achieve this, a 100-m section of a new rope was divided into 63 sections, which were then exposed to impurities. The first endurance measurement was taken after 9 months and the second after 12 months. Findings: contamination with biological agents has an impact on static rope strength, and knowledge about this impact is negligible and not included in any rope-use instructions.


Author(s):  
Maurício Aguiar Serra ◽  
José Raimundo Vergolino ◽  
Artur da Silva Coelho

The main objective of this article is to analyse the development of Amazon region through biotechnological activities. Amazonia, by virtue of its tremendous biodiversity, has excellent possibilities of meeting a growing market for biotechnological products, being that the development of this sector demands not only abundant natural resources, but also the existence of an institutional environment that is able to integrate productive activities with research on science and technology. The promotion of regional development, thus, depends on the configuration, which, according to Boisier, is composed by six elements, present in all regions that interact with each other. The article concludes that Amazonian development is directly related to the participation capability of many segments of society for the development of biotechnological activities, in which the State should play an important role in drawing up policies towards the biotechnological sector and, at the same time, in setting up participation channels for the relationship among actors.


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