Idimanthus: A new aroid genus (Araceae—Caladieae) from Rio de Janeiro State, Brasil

Phytotaxa ◽  
2018 ◽  
Vol 351 (1) ◽  
pp. 88
Author(s):  
EDUARDO G. GONÇALVES

The monotypic genus Idimanthus (Araceae-Caladieae), represented by the species Idimanthus amorphophalloides, is here described and illustrated. It differs from all Caladieae by its connective ending in a rostrate beak turned downward, but the combination of cormous geophytic stem, copious endosperm, densely arranged fertile flowers and sterile flowers densely arranged in an apical appendix did not match any other genera in the tribe. It was collected in a marble outcrop in Northern Rio de Janeiro state, in the county of Italva, nearby the city of Cardoso Moreira as an understory herb. The aspect of leafless inflorescences with a long apical staminoidal area appearing directly from the soil is remarkably peculiar for Southeastern Brazilian aroids.

Phytotaxa ◽  
2018 ◽  
Vol 351 (1) ◽  
pp. 88
Author(s):  
EDUARDO G. GONÇALVES

The monotypic genus Idimanthus (Araceae-Caladieae), represented by the species Idimanthus amorphophalloides, is here described and illustrated. It differs from all Caladieae by its connective ending in a rostrate beak turned downward, but the combination of cormous geophytic stem, copious endosperm, densely arranged fertile flowers and sterile flowers densely arranged in an apical appendix did not match any other genera in the tribe. It was collected in a marble outcrop in Northern Rio de Janeiro state, in the county of Italva, nearby the city of Cardoso Moreira as an understory herb. The aspect of leafless inflorescences with a long apical staminoidal area appearing directly from the soil is remarkably peculiar for Southeastern Brazilian aroids.


2020 ◽  
Vol 96 (1) ◽  
pp. 73-90
Author(s):  
Renner Luiz Cerqueira Baptista ◽  
Pedro de Souza Castanheira ◽  
Gabriel Assunção Oliveira ◽  
André Wanderley do Prado

New data on the jumping-spider genus Arnoliseus are presented. Three new species from the Atlantic Forest in Rio de Janeiro state are described, based on both sexes: Arnoliseus cariocasp. nov. from the city of Rio de Janeiro, and Arnoliseus hastatussp. nov. and Arnoliseus falcatussp. nov. from the municipality of Cachoeiras de Macacu. The genus’ genital morphology is discussed in detail and new English terminology for their structures is created. An identification key for all Arnoliseus species is given.


2019 ◽  
Vol 72 (suppl 1) ◽  
pp. 122-128 ◽  
Author(s):  
Riva Schumacker Brust ◽  
Luíza Pereira Maia de Oliveira ◽  
Aline Cerqueira Santos Santana da Silva ◽  
Isabel Cristina Ribeiro Regazzi ◽  
Gilberto Santos de Aguiar ◽  
...  

ABSTRACT Objective: to describe the epidemiological profile of farmworkers exposed to pesticides in the city of Casimiro de Abreu, Rio de Janeiro State. Method: cross-sectional study, conducted through a questionnaire. The collected data were typed in spreadsheet and processed in the R software. Results: the predominance of female participants, between 40 and 60 years old, married, with some elementary education was observed. Furthermore, the family labor and the production for their own consumption and trade prevail. Herbicide is the most widely used pesticide. Most informants present poisoning symptoms, as they do not use Personal Protective Equipment nor sunscreen. Breast cancer is the most frequent in families; among the participants, 31% had hypertension and 6.4% diabetes. Conclusion: a population vulnerable to environmental and occupational risks, specially the middle-aged group and women, sets up a profile marked by regional differences.


1994 ◽  
Vol 29 (4) ◽  
pp. 571-580
Author(s):  
Jose M. Azcue ◽  
Olaf Malam ◽  
Wolfgang G. Pfeiffer

Abstract The effect of the extended use of alum on the concentration of aluminum in water treatment was investigated. Water from the Paraiba do Sul-Guandu River (PSR-GR) system, collected after conventional treatment, was analyzed from the six water treatment plants (WTPs). One of the WTPs, the Guandu WTP, supplies water to the city of Rio de Janeiro (11 million inhabitants) with a flow of 40 m3/s. The concentrations of aluminum found were near and sometimes over the values recommended by the World Health Organization (200 µg/L), with an average concentration of 306 µg/L, reaching seasonally maximum values of 877 µg/L at the WTP and 2,100 µg/L in household taps. The discharge of alum sludge back to the river system is the predominant pathway in the aluminum cycling in the study area, followed by sedimentation and enhanced availability to the biota.


2008 ◽  
Vol 31 (1) ◽  
pp. 50-64
Author(s):  
Aline Nogueira Costa ◽  
Helena Polivanov ◽  
Maria Da Glória Alves

Campos dos Goytacazes County is located on the north coast of Rio de Janeiro State. The city of Campos dos Goytacazes was developed on a flooding plain and due to the fragility of the physical environment; the city has been suffering serious environmental problems. The methodology used base in acquisition of data bank, remote sensoring techniques, Field Information and application of SIG ArcGis9. In a first step, the themes geology, pedology and geomorphology units was overlaying, where could obtain a Geological-Geotechnical Units Map, with lowed and elevated units, the which had been defined in accordance with its characteristics. The purpose of this map, as well as the objective of the work is to plan the territory for the future generations


2010 ◽  
Vol 70 (3) ◽  
pp. 587-592 ◽  
Author(s):  
VM. Sodré ◽  
O. Rocha ◽  
MC. Messias

A study of chironomids (Diptera, Chironomidae) occurring in phytotelmata of Bromeliaceae was carried out in a fragment of the Atlantic Rain Forest in an area of the city of Magé, Pau Grande, one of the metropolitan areas of Rio de Janeiro City, during a period of 13 months between September 2006 and September 2007. Eight samplings were performed at intervals of 1 ½ months and the content of the phytotelmata of the bromeliad species Neoregelia concentrica (Vellozo) L.B. Smith, 1934 and Aechmea nudicaulis (Linnaeus) Grisebach, 1864, were examined. A taxonomical inventory and evaluation of the numerical abundance of Chironomidae larvae were performed in 50 specimens of the bromeliads, being 13 individuals of N. concentrica and 37 of A. nudicaulis. Three taxa of Chironomidae belonging to three distinct subfamilies were recorded: Polypedilum sp., Orthocladiinae genus A and Monopelopia sp. A total of 293 individuals of Chironomidae, were recorded, being 9 Polypedilum sp., 233 Orthocladiinae genus A, and 51 Monopelopia sp., the latter representing the first record of Monopelopia in phytotelmata in Rio de Janeiro State. Considering all samples, a mean density of 3.32 ± 2.62 chironomid larvae per phytotelmata was recorded. There was a positive relationship between the chironomid abundance and both precipitation and the volume of water in the phytotelmata. Apparently there is no preference by the chironomids regarding the colonistion of the bromeliad species.


2012 ◽  
Vol 10 (1) ◽  
pp. 51-64 ◽  
Author(s):  
Bruno de Vasconcelos Cardoso

This paper reports some of the issues raised by field research conducted in the official video surveillance system in public spaces that is operated by the Military Police on behalf of the Rio de Janeiro State Department of Public Security. The research was conducted at the Command and Control Center (CCC), where the images from all the cameras in the police battalions are brought together and at the police batallion at Copacabana (19thBPM), the first area at the city where surveillance cameras were installed. This system is treated as a sociotechnical network, formed by the interaction of individuals and technological elements, further increasing the importance of an observation from two different levels of this network. Special attention is drawed on what I called “the paradox of the caught in-the-act surveillance scenes”, dilemma emerged around the conflict between the work of surveillance and the aesthetics of surveillance, and also on a main videosurveillance problem: (human and/or technical) overdetermination.


Zootaxa ◽  
2007 ◽  
Vol 1558 (1) ◽  
pp. 29-37 ◽  
Author(s):  
MARCIO B. DASILVA ◽  
ADRIANO B. KURY

A new species of Multumbo Roewer, 1927 (Gonyleptidae: Hernandariinae), M. dimorphicus sp. nov., is described from Rio de Janeiro state, southeastern Brazil. It presents sexual dimorphism in leg IV, contrasting remarkably with the type species of the hitherto monotypic genus Multumbo and the closest genera (Piassagera Roewer, 1928 and Pseudotrogulus Roewer, 1932), which were all thought to have lost this dimorphism. The presence of sexual dimorphism in M. dimorphicus implies a complex scenario of loss or reversal of this character. New records are given of type species of genus, Multumbo terrenus Roewer, 1913, for which a lectotype is designated. New diagnoses are provided for Hernandariinae and Multumbo. Multumbo and Piassagera are transferred from the Gonyleptinae to the Hernandariinae.Uma nova espécie de Multumbo Roewer, 1927, M. dimorphicus sp. nov., é descrita do estado do Rio de Janeiro. Ela apresenta dimorfismo sexual na perna IV, condição em notável contraste com a espécie-tipo do até então gênero monotípico Multumbo e com os gêneros mais relacionados, Piassagera Roewer, 1928 e Pseudotrogulus Roewer, 1932, nos quais esse dimorfismo era considerado como perdido. A presença de dimorfismo sexual em M. dimorphicus sugere um complexo cenário de perda ou reversão desse dimorfismo. Também foram incluídos novos registros da espécie-tipo do gênero, Multumbo terrenus Roewer, 1913, e um lectótipo é designado. Novas diagnoses para Hernandariinae and Multumbo são apresentadas. Multumbo e Piassagera são aqui transferidos de Gonyleptinae para Hernandariinae.


2021 ◽  
Vol 61 ◽  
pp. e20216194
Author(s):  
Adriano Brilhante Kury ◽  
Laura Regina Caramori

The monotypic genus Bunostigma Mello-Leitão, 1935 is herein revisited. A detailed redescription of its type-species, Bunostigma singulare Mello-Leitão, 1935 from Rio de Janeiro state, eastern Brazil, is herein presented, providing in depth knowledge of this genus. Bunostigma is most closely related to Cryptogeobius Mello-Leitão, 1935, and as this genus, it has a stout complex apophysis on male coxa IV, lacking, however, a second complex on the stigmatic area. Bunostigma has an oblique elongate malleus, similar to that of Zalanodius Mello-Leitão, 1936 (as opposed to a globular malleus in Cryptogeobius). Bunostigma singulare has short legs, with some sexual dimorphism on its stoutness, a dorsal scutum entirely unarmed and an ocularium with an accessory central mound, although unarmed.


2021 ◽  
Vol 41 ◽  
Author(s):  
Ticiana N. França ◽  
Stephni M. Carletti ◽  
Juliana F. Rocha ◽  
Bartolomeu B.N. Santos ◽  
Mariana C. Oliveira ◽  
...  

ABSTRACT: Colic outbreaks in horses have been associated with the grazing of several Megathyrsus maximus (Sin. Panicum maximum) cultivars in the North and Central-West regions of Brazil. In this paper, we report a horse colic outbreak in the Southeast region of Brazil caused by ingestion of the “Colonião” cultivar of M. maximus, which has not previously been considered as toxic. The five affected horses belonged to the Veterinary Platoon based at the Central Ammunition Deposit of the Brazilian Army in the city of Paracambi, Rio de Janeiro state, Brazil. The horses had access to treated water and commercial concentrate, and were located in a field of M. maximus at the time of the outbreak. All horses exhibited clinical signs of colic and bloat, and three of them died. The extend of the clinical course ranged from four to five days in the three animals that died; in the two animals that recovered from the colic episodes, the extend of the clinical courses were 10 and 15 days. Necropsy findings revealed intestinal and gastric bloating and hemorrhages involving the intestinal wall. Light microscopy showed moderate diffuse lymphoplasmacytic and eosinophilic enteritis with multifocal erosions, in addition to submucosal edema associated with multifocal vasculitis. The pathogenesis of colic caused by M. maximus ingestion in horses has not yet been elucidated. Some authors have suggested that higher starch concentrations in M. maximus during the rainy season may be responsible for the toxicity of this plant. However, the findings of this study do not support this hypothesis. As a prophylactic measure, it is suggested that horses do not graze exclusively M. maximus at the beginning of rainy periods, in which regrowth of this grass occurs. In Brazil, outbreaks of horse colic associated with ingestion of varieties of Megathyrsus can also occur outside the North and Midwest regions, under specific climate conditions.


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