scholarly journals Bivalvia, Cyrenidae, Corbicula fluminea (Müller, 1774): new record, density, and population structure in the Teles Pires River, northern Mato Grosso, Brazil

Check List ◽  
2015 ◽  
Vol 11 (4) ◽  
pp. 1720 ◽  
Author(s):  
Michele Poleze ◽  
Claudia Tasso Callil

Corbicula fluminea is a very prolific invasive species around the world. In order to document the dispersal of this species in the Midwest Region of Brazil, we sampled 10 sites in the Teles Pires River in September 2006 and September 2012. We standardized the sampling effort by the number of drags, distance and size of the sieve. The average density of C. fluminea in 2006 was 6.36 individuals/m2 and 26.42 individuals/m2 in 2012. Corbicula fluminea is adapted to regional environmental characteristics such as climate, temperature and rainfall, and could become a problem in new hydroelectric dams that are setting up on site.

Check List ◽  
2021 ◽  
Vol 17 (6) ◽  
pp. 1627-1631
Author(s):  
Yan Felipe Figueira Soares ◽  
Maria Júlia Martins-Silva

Corbicula fluminea (Müller, 1774) is an Asian freshwater clam that is widely distributed throughout the world through multiple introductions. Its invasion can cause environmental and economic damage. In Brazil, C. fluminea is recorded in all major hydrographic basins. Here, we report the first record of C. fluminea in the Chapada dos Veadeiros region of Goiás, Brazil. This new record extends the known distribution of this species to a conserved area in the Cerrado biome, towards areas of interest for conservation and integral protection units of the biodiversity.


Karstenia ◽  
2020 ◽  
pp. 374-384
Author(s):  
Francisco J. Simões Calaça ◽  
Jéssica C. Araújo ◽  
Vanessa B. Tereza ◽  
Izabel C. Moreira ◽  
Solange Xavier-Santos

Fimicolous organisms are those that can grow on dung. These substrates offer conditions that favour colonization by microorganisms, such as high nutrient and moisture content and an alkaline-neutral pH that is especially advantageous in arid/desertic regions. There are about 250 species of myxomycetes known from Brazil, which are distributed in all geographic regions and biomes, obtained mainly from plant-derived substrates. However, there are some reports of fimicolous myxomycetes in Brazil. In this study, we expand this knowledge with new records of fimicolous myxomycetes in multiple Brazilian biomes. Between 2017 and 2018, horse and cattle dung samples were collected in municipal areas in the State of Goiás (Cerrado biome): Pirenópolis, Goiás, and Porangatu; and the State of Mato Grosso (Pantanal biome): Poconé. Samples were incubated in moist chambers and monitored for four months. Myxomycetous fructifications were observed, photographed under stereo and light microscopes, and morphologically identified. Vouchers were deposited at the HUEG Herbarium. A total of five species of myxomycetes were recorded: <em>Arcyria cinerea and <em>Physarum viride (Pirenópolis), <em>P. cinereum (Goiás City), <em>P. melleum</em> (Porangatu), and <em>Perichaena corticalis</em> (Poconé). They represent the first records of fimicolous myxomycetes from the Brazilian Cerrado and Pantanal biomes. Additionally, <em>P. melleum</em> was reported as fimicolous for the first time in Brazil and the second time in the world; <em>P. corticalis</em> was reported for the first time in midwest region as well as for the first time as fimicolous in Brazil; and <em>P. viride</em> was reported for the first time as fimicolous in the world.


Author(s):  
Renato Brito de Oliveira Junior ◽  
Rayan Silva de Paula ◽  
Vinícius Sergio Rodrigues Diniz ◽  
Marcela David de Carvalho ◽  
Antônio Valadão Cardoso

The golden mussel (Limnoperna fortunei) and Corbicula fluminea are considered well-established invasive species in the rivers of Brazil and South America. In addition to the environmental problems resulting from this invasion process, the economic issue, especially in hydroelectric dams, is very worrisome and has mobilized several types of studies on these invasive bivalves. The detection and identification of these organisms in their adult phase in the rivers is not a problem; however, the identification of bivalve larvae by usual morphological methods is difficult due to high similarity conserved in these stages. The use of PCR-RFLP has proven to be an efficient and agile molecular method that allowed the detection of different patterns in the agarose gel for the two bivalves tested. The gel pattern showed a 100 bp band for L. fortunei not detected for C. fluminea. Thus, it is possible to detect larvae of these species from water samples, which can be a powerful tool for environmental monitoring programs on aquatic invasive species.


2014 ◽  
Vol 14 (1) ◽  
Author(s):  
José Luiz Massao Moreira Sugai ◽  
Juliana de Souza Terra ◽  
Vanda Lúcia Ferreira

The Upper Paraguay River Basin is located in the center of South America and harbors one of the largest wetland in the world, known as Pantanal. This floodplain is surrounded by uplands, which presently have most of their area converted into pastures or monocultures, besides being poorly known scientifically. Also, most of these upland areas are considered conservation priorities. Here we present a list of anuran species from a savanna-like area (municipality of Camapuã, state of Mato Grosso do Sul, Brazil) inserted in the uplands surrounding the Pantanal floodplain, in the Upper Taquari River sub-basin, and evaluate the effectiveness of the sampling effort. Data were obtained through active searches in 22 plots in aquatic habitats, during the rainy season (from December 2009 to April 2010). We found 26 species, in four families. Although sampling effort was found to sufficiently represent the local anuran assemblage, future inventories in this region should ideally include samplings during the dry and early rainy seasons, and include both active and passive capturing methods.


Author(s):  
Elaine J. Fraser ◽  
Lauren A. Harrington ◽  
David W. Macdonald ◽  
Xavier Lambin

American mink, native to North America, have been transported around the world for fur farming – inevitably some individuals escaped, and they now occur in the wild across Eurasia and in South America, where they have had devastating impacts on native prey and competitors. This chapter gives an overview of a research project focusing on mink management in the north of Scotland, UK. It assesses, first, how mink have spread across Scotland, and, specifically, to what extent habitat suitability and food availability has influenced the current distribution of mink. It then considers how we might use knowledge of population structure across the landscape to target control efforts, and, finally, whether volunteers can play a useful role in mink control in this area. The chapter is concluded with a discussion of what we might learn from this Scottish case study with respect to the wider issue of invasive American mink elsewhere.


Check List ◽  
2021 ◽  
Vol 17 (1) ◽  
pp. 151-157
Author(s):  
Manuella Feitosa Leal ◽  
Luiz Ricardo Lopes de Simone ◽  
Ana Carolina Figueiredo Lacerda ◽  
Edson Lourenço da Silva ◽  
Tamaris Gimenez Pinheiro

Corbicula fluminea is an invasive clam originally from Asia that threatens the biodiversity of freshwater communities around the world. It has greatly expanded in Brazil since its first record. We report here the occurrence of C. fluminea from Piau&iacute; state, Parna&iacute;ba river basin and, provide an assessment of its current distribution in Brazil. The compiled data include 382 records in 22 states and the Federal District, encompassing a variety of ecosystems. These results contribute to a discussion about the invasion and expansion process of C. fluminea in Brazil over time.


EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 7
Author(s):  
Demian F. Gomez ◽  
Jiri Hulcr ◽  
Daniel Carrillo

Invasive species, those that are nonnative and cause economic damage, are one of the main threats to ecosystems around the world. Ambrosia beetles are some of the most common invasive insects. Currently, severe economic impacts have been increasingly reported for all the invasive shot hole borers in South Africa, California, Israel, and throughout Asia. This 7-page fact sheet written by Demian F. Gomez, Jiri Hulcr, and Daniel Carrillo and published by the School of Forest Resources and Conservation describes shot hole borers and their biology and hosts and lists some strategies for prevention and control of these pests. http://edis.ifas.ufl.edu/fr422


2013 ◽  
Vol 176 (5-6) ◽  
pp. 409-415 ◽  
Author(s):  
Hugo Dias Hoffmann-Santos ◽  
Claudete Rodrigues Paula ◽  
Ana Caroline Akeme Yamamoto ◽  
Tomoko Tadano ◽  
Rosane C. Hahn

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
L F Pinto ◽  
D Soranz ◽  
L J Santos ◽  
M S Paranhos ◽  
L S Malta ◽  
...  

Abstract Brazil is divided into five administrative regions, 27 federation units and 5,570 municipalities. Mato Grosso do Sul is one of the states located in the Midwest region and has 1.6 million km2 and a resident population of 2.8 million inhabitants, that is, it has an even lower demographic density than its region - only 7.8 inhabitants/km2. Mato Grosso do Sul has part of the Pantanal, a biome considered the largest continuous floodplain in the world, rich in biodiversity. For this reason, displacements for data collection in household surveys combine roads and rivers. In 2019, the Brazilian National Institute of Geography and Statistics (Istituto Nazionale di Statistica del Brasile) in partnership with the Ministry of Health launched the world's largest household sample survey, the National Health Survey (PNS-2019), in which part of its questions included the use of Primary Care Assessment Tool (PCAT, adult version), created by professors Barbara Starfield and Leiyu Shi in the 2000s. IBGE interviewers visited more than 100,000 households across the country. In Mato Grosso do Sul, more than 3,000 households were surveyed. In this work, we present the data collection instrument used by IBGE and its multiple analysis possibilities in the scope of primary health care, crossing the variables from other questionnaire modules in order to compare the results from Brazil with the state of Mato Grosso do Sul and its capital, Campo Grande. Developing a baseline and measuring the attributes of primary health care in each of the Brazilian states is another step towards giving health policy accountability, towards strong primary care. IBGE's experience in household surveys and innovation in data collection in primary care is an example for the world that yes, it is possible to develop statistically representative national sample surveys and make them perennial in their regular household surveys, by the time World Health Organization (WHO) discusses universal health coverage. Key messages Evaluation of primary care using an internationally validated instrument is possible on national bases with random household sample surveys. A questionnaire elaborated academically can be used as an instrument of public policy to evaluate nationwide health services.


Diversity ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 215
Author(s):  
Carl C. Christensen ◽  
Kenneth A. Hayes ◽  
Norine W. Yeung

Freshwater systems are among the most threatened habitats in the world and the biodiversity inhabiting them is disappearing quickly. The Hawaiian Archipelago has a small but highly endemic and threatened group of freshwater snails, with eight species in three families (Neritidae, Lymnaeidae, and Cochliopidae). Anthropogenically mediated habitat modifications (i.e., changes in land and water use) and invasive species (e.g., Euglandina spp., non-native sciomyzids) are among the biggest threats to freshwater snails in Hawaii. Currently, only three species are protected either federally (U.S. Endangered Species Act; Erinna newcombi) or by Hawaii State legislation (Neritona granosa, and Neripteron vespertinum). Here, we review the taxonomic and conservation status of Hawaii’s freshwater snails and describe historical and contemporary impacts to their habitats. We conclude by recommending some basic actions that are needed immediately to conserve these species. Without a full understanding of these species’ identities, distributions, habitat requirements, and threats, many will not survive the next decade, and we will have irretrievably lost more of the unique books from the evolutionary library of life on Earth.


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