scholarly journals Threatened endemic species of Hibiscus l. (Malvaceae) in Minas Gerais, Brazil

2019 ◽  
Vol 1 (1) ◽  
pp. 9-15
Author(s):  
Luccas Henrique Gomes Rigueiral ◽  
Victor Martins Gonçalez ◽  
Marília Cristina Duarte ◽  
Cleber Vinicius Vitorio da Silva ◽  
Rafael Tavares ◽  
...  
Keyword(s):  
Endemic Species ◽  
Native Species ◽  
Minas Gerais ◽  
Critically Endangered ◽  
Atlantic Rainforest ◽  
Mountain Range ◽  
Isolated Populations ◽  
Southeast Brazil ◽  
Staminal Tube ◽  
Minas Gerais State

Hibiscus L. is one of the largest genera of Malvaceae, Southeast Brazil has six endemic species of 14 native species, mainly distributed in cerrado. These Hibiscus are hairy shrubs, with showy flowers of pink corolla, dark base, 5-toothed staminal tube apex, loculicidal capsule of 5 cells. The species inhabit wet ecosystems of the atlantic rainforest and cerrado. After the last study of Hibiscus taxonomy evidencing four endemic species from Minas Gerais state, showed to have the largest endemism center of Hibiscus in Brazil, therefore, using IUCN classification methodology, we indicated H. hilarianus and H. multiformis as vulnerable, H. itirapinensis as endangered and H. mariae as critically endangered. The species are represented by small isolated populations distributed at the mountains and plateaus between Espinhaço mountain range and Planalto Paulista, considered a region with great endemic biodiversity. According to the previously analysis, it is recommended specific studies with techniques and appropriate methodology to research the development and evolutionary characteristics of hibiscus species in Minas Gerais state.

Three New and Endemic Species of Eriocaulaceae from Serra da Canastra, Minas Gerais, Brazil

2021 ◽  
Vol 46 (1) ◽  
pp. 24-33
Author(s):  
Livia Echternacht ◽  
Mariane da Silva Freitas ◽  
Marcelo Trovó
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Minas Gerais ◽  
Critically Endangered ◽  
Similar Species ◽  
New Taxon ◽  
Minas Gerais State ◽  
Three New Species ◽  
Iucn Criteria

Abstract—Three new species of Eriocaulaceae, endemic to the Serra da Canastra in Minas Gerais state, are described. Paepalanthus petraeus is assigned to P. ser. Paepalanthus, differing within the series by its thickened stem accumulating leaf sheaths, linear leaves, and numerous scapes shorter or equaling the leaf height and bearing capitula with brown involucral bracts. Paepalanthus sinuosus belongs to P. subsect. Polyactis and is distinguished by few scapes in lax fascicles, more than twice as long as the leaves, which are patent to slightly recurved, and light brown involucral bracts with acute apex. Syngonanthus culcitosus, within S. sect. Syngonanthus, is unique due to its elongate and branched stem forming dense mats, simple inflorescences, cream-colored involucral bracts equaling the length of the floral disc, and gynoecium with nectariferous appendages. Comparisons with the most similar species are provided for each new taxon. Maps, photographs, and illustrations are presented, together with comments on phenology, distribution, habitat, and morphology. Paepalanthus petraeus and P. sinuosus are likely to be assessed as Critically Endangered, and S. culcitosus as Vulnerable, according to IUCN criteria.

High prevalence of intestinal infections and ectoparasites in dogs, Minas Gerais State (southeast Brazil)

2012 ◽  
Vol 111 (5) ◽  
pp. 1913-1921 ◽  
Author(s):  
Jörg Heukelbach ◽  
Raphael Frank ◽  
Liana Ariza ◽  
Íris de Sousa Lopes ◽  
Alcides de Assis e Silva ◽  
...  
Keyword(s):  
Minas Gerais ◽  
Southeast Brazil ◽  
Intestinal Infections ◽  
High Prevalence ◽  
Minas Gerais State

Novelties in Begonia (Begoniaceae) from the campos rupestres of Serra do Padre Ângelo, Minas Gerais, Brazil: a new species and a new record

Phytotaxa ◽  
2021 ◽  
Vol 510 (1) ◽  
Author(s):  
LUDOVIC JEAN CHARLES KOLLMANN ◽  
PAULO MINATEL GONELLA
Keyword(s):  
New Species ◽  
High Elevation ◽  
Iucn Red List ◽  
Minas Gerais ◽  
Small Population ◽  
Critically Endangered ◽  
Campos Rupestres ◽  
Rock Outcrops ◽  
Critically Endangered Species ◽  
Minas Gerais State

Begonia piranga (Begoniaceae) is a new narrowly endemic species from the campos rupestres of Serra do Padre Ângelo, a quartzitic massif in Conselheiro Pena, eastern Minas Gerais state, Brazil. Description, diagnosis, taxonomic comments, detailed illustrations, field photographs, and a provisional IUCN Red List Assessment are provided. The new species is considered Critically Endangered due to its restricted occurrence in high elevation rock outcrops, small population size, and decline in the quality of the habitat. Begonia vasconcelosiana, another Critically Endangered species, is also newly reported here for Serra do Padre Ângelo. These discoveries add to the increasing list of novelties from Serra do Padre Ângelo, reinforcing the urge for conservation actions to protect the endemic flora of this Serra and other areas of campos rupestres in eastern Minas Gerais state.

Novelties from the Serra Nova State Park (Minas Gerais, Brazil): two new endemic species of Eriocaulaceae

Phytotaxa ◽  
2021 ◽  
Vol 505 (2) ◽  
pp. 187-200
Author(s):  
LIVIA ECHTERNACHT ◽  
MAURÍCIO TAKASHI COUTINHO WATANABE ◽  
CAROLINE OLIVEIRA ANDRINO
Keyword(s):  
Endemic Species ◽  
Iucn Red List ◽  
Minas Gerais ◽  
Red List ◽  
Campos Rupestres ◽  
Conservation Unit ◽  
Inflorescence Architecture ◽  
Espinhaço Range ◽  
Minas Gerais State ◽  
Iucn Red List Criteria

Two new micro-endemic species of Eriocaulaceae are described from the Campos Rupestres of Serra Nova State Park, a conservation unit located in the Espinhaço Range in northern Minas Gerais state, Brazil. Herein we provide descriptions, illustrations, photographs and maps, together with notes on morphology, distribution, phenology, taxonomy, and conservation. Paepalanthus ferrugineus is distinguished mainly by the reddish-brown involucral bracts, surpassing the floral disc, with the apex attenuate and tufted adaxially, tufted sepals and hairy petals. Syngonanthus polyaxis is easily differentiated by the inflorescence architecture with three morphologically distinct axial parts. Both species are considered Critically Endangered according to the IUCN Red List criteria.

scholarly journals Capture of Triatoma arthurneivai (Hemiptera: Reduviidae) using a new luminous trap in Southeast Brazil

2011 ◽  
Vol 44 (6) ◽  
pp. 774-776 ◽  
Author(s):  
João Victor Leite Dias ◽  
Bethânia Alves de Avelar ◽  
Hildebrando Cirqueira Júnior ◽  
Liléia Diotaiuti ◽  
Herton Helder Rocha Pires
Keyword(s):  
Minas Gerais ◽  
Mountain Range ◽  
Low Density ◽  
Trap Design ◽  
Southeast Brazil ◽  
Triatomine Bugs ◽  
In The Wild ◽  
The City

INTRODUCTION: Triatomine bug captures in the wild are laborious and time-consuming. Some traps may assist in this task. We report a new trap design and the capture of a specimen of a triatomine rarely found. METHODS: Two luminous traps were installed in the city of Diamantina, State of Minas Gerais, and surveyed weekly for a year. RESULTS: A Triatoma arthurneivai female and other triatomine bugs were caught. CONCLUSIONS: A new trap design may be used in triatomine bugs field captures, mainly in low density areas. We assume the center of endemism of Triatoma arthurneivai is the Espinhaço Mountain range.

Monazite-(Ce) and xenotime-(Y) microinclusions in fluorapatite of the pegmatites from the Volta Grande mine, Minas Gerais state, southeast Brazil, as witnesses of the dissolution–reprecipitation process

2019 ◽  
Vol 83 (4) ◽  
pp. 595-606 ◽  
Author(s):  
Felipe Emerson André Alves ◽  
Reiner Neumann ◽  
Ciro Alexandre Ávila ◽  
Fabiano Richard Leite Faulstich
Keyword(s):  
Electron Probe ◽  
Minas Gerais ◽  
Compositional Variation ◽  
Partial Removal ◽  
Hydrous Fluid ◽  
Southeast Brazil ◽  
Pegmatite Body ◽  
Minas Gerais State ◽  
Fluorapatite Structure ◽  
Mineralogical Assemblage

AbstractFluorapatite with monazite-(Ce) and xenotime-(Y) microinclusions occurs in the lithium–caesium–tantalum pegmatite body A of the Volta Grande mine, Minas Gerais state, Southeast Brazil. The fluorapatite displays faint zoning, detected mainly by cathodoluminescence. Electron probe and laser ablation analyses indicate that zoning in the fluorapatite corresponds to variation in Mn and rare-earth element (REE) content. Such compositional variation is attributed to partial removal of the REE from the fluorapatite structure during a dissolution–reprecipitation process, forming monazite-(Ce) and xenotime-(Y) microinclusions in the REE-depleted zones of the fluorapatite. These inclusions exhibit an inherited geochemical signature, manifested by low Th and U concentrations when compared to monazite and xenotime crystallised from melts. Rhodochrosite and calcite inclusions are also associated with monazite-(Ce) and xenotime-(Y) and are probably products of the same process, recycling Ca, Mn, and CO32− from the fluorapatite through the following reaction: [Ca(5–2a–b–½x),Naa,(Y + REE)a,Mnb][(PO4)3–x(CO3)x(F)] + Fluid[a(2Ca2+ + P5+) + (x–b)(Ca2+) + H2O)] → [Ca5(PO4)3(F,OH)] + a[(Y + REE)PO4] + b[Mn(CO3)] + (x–b)[Ca(CO3)] + Fluid a[Na+].On the basis of new fluid-inclusion analyses, we propose that a hot (T > 204.5°C), salty (16 wt.% eq. NaCl, attributed to LiCl), hydrous fluid mediated the dissolution–reprecipitation of the fluorapatite. This fluid corresponds to similarly described Li-rich fluids which were suggested to have re-equilibrated the mineralogical assemblage at the Volta Grande mine.

A new species of Philodendron (Araceae) from an enclave of Atlantic rainforest in Minas Gerais State, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 452 (3) ◽  
pp. 217-223
Author(s):  
LUANA S.B. CALAZANS
Keyword(s):  
New Species ◽  
Minas Gerais ◽  
Atlantic Rainforest ◽  
Southeastern Brazil ◽  
Minas Gerais State ◽  
A New Species

During a field expedition in the Reserva Biológica da Mata Escura, an enclave of Atlantic Rainforest in Minas Gerais State, Southeastern Brazil, a remarkable new species of Philodendron was found. Here the new species is described, illustrated and compared to morphologically close species.

The tadpole of the hylodid frog Hylodes charadranaetes Heyer and Cocroft, 1986

Zootaxa ◽  
2010 ◽  
Vol 2680 (1) ◽  
pp. 65
Author(s):  
PAULO NOGUEIRA COSTA ◽  
CARLA COSTA SIQUEIRA ◽  
DAVOR VRCIBRADIC ◽  
LUIZ NORBERTO WEBER ◽  
CARLOS FREDERICO D. ROCHA
Keyword(s):  
Rio Grande ◽  
Species Group ◽  
Minas Gerais ◽  
Riparian Forests ◽  
Atlantic Rainforest ◽  
Rio Grande Do Sul ◽  
Campos Rupestres ◽  
Eastern Brazil ◽  
Minas Gerais State ◽  
Species Groups

The genus Hylodes Fitzinger, 1826 is restricted to eastern Brazil, occurring from the states of Espírito Santo to Rio Grande do Sul (Lingnau et al. 2008, Frost 2010). Except for Hylodes otavioi, which inhabits riparian forests in rocky fields (“campos rupestres”) habitats within the Cerrado domain in Minas Gerais State (Sazima & Bokermann 1982), all other species in the genus are endemic to the Atlantic Rainforest domain (Lingnau et al. 2008). The genus currently comprises 24 species (Frost 2010) of small to medium-sized diurnal frogs that live associated to lotic streams in forests (e.g. Lingnau et al. 2008; Silva & Benmaman 2008). Heyer (1982) proposed four species groups for Hylodes, which are still recognized today (but see Haddad et al. 1996; Canedo & Pombal 2007): the glaber (formerly pulcher), lateristrigatus, mertensi, and nasus species groups. The Hylodes lateristrigatus species group is the most specious, being currently composed by 18 species: H. amnicola Pombal, Feio, and Haddad, 2002, H. babax Heyer, 1982, H. charadranaetes Heyer and Cocroft, 1986, H. fredi Canedo and Pombal, 2007, H. heyeri Haddad, Pombal, and Bastos, 1996, H. lateristrigatus (Baumann, 1912), H. magalhaesi (Bokermann, 1964), H. meridionalis (Mertens, 1927), H. ornatus (Bokermann, 1967), H. otavioi Sazima and Bokermann, 1983, H. perere Silva & Benmaman, 2008, H. perplicatus (Miranda-Ribeiro, 1926), H. pipilans Canedo and Pombal, 2007, H. phyllodes Heyer and Cocroft, 1986, H. regius Gouvêa, 1979, H. sazimai Haddad and Pombal, 1995, H. uai Nascimento, Pombal, and Haddad, 2001, and H. vanzolinii Heyer, 1982 (Silva & Benmaman 2008; Frost 2010).

High prevalence of dengue antibodies and the arginine variant of the FcγRIIa polymorphism in asymptomatic individuals in a population of Minas Gerais State, Southeast Brazil

2017 ◽  
Vol 70 (6) ◽  
pp. 355-362 ◽  
Author(s):  
Anna Carolina Toledo da Cunha Pereira ◽  
Tatiane Ribeiro de Siqueira ◽  
Andressa Anunciação de Oliveira Prado ◽  
Camila Almeida Veiga da Silva ◽  
Thaís de Fátima Silva Moraes ◽  
...  
Keyword(s):  
Minas Gerais ◽  
Southeast Brazil ◽  
High Prevalence ◽  
Minas Gerais State ◽  
Asymptomatic Individuals

scholarly journals Nepenthes cabanae (Caryophyllales, Nepenthaceae), a new species of pitcher plant from Central Mindanao, Philippines

2020 ◽  
Vol 13 (1) ◽  
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Protected Area ◽  
Critically Endangered ◽  
Conservation Strategy ◽  
Mountain Range ◽  
Pitcher Plant ◽  
A New Species

A new endemic species, Nepenthes cabanae, belonging to sect. Insignes is described from the Mt. Pantaron range of central Mindanao. The species is assessed as Critically Endangered. This discovery brings the number of Nepenthes species in this mountain range to eight. Mt. Pantaron is currently not a protected area, but the diversity of Nepenthes taxa suggests concerted efforts should be made to develop a conservation strategy to preserve and protect the area.

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