scholarly journals Low Genetic Structure in an Epiphytic Orchidaceae (Oncidium hookeri) in the Atlantic Rainforest of South-eastern Brazil

2006 ◽  
Vol 98 (6) ◽  
pp. 1207-1213 ◽  
Author(s):  
S. ALCANTARA ◽  
J. SEMIR ◽  
V. N. SOLFERINI
Keyword(s):  
Genetic Structure ◽  
Atlantic Rainforest ◽  
South Eastern ◽  
Eastern Brazil

Simira robusta (Rubiaceae, Condamineeae), a new species from the Atlantic Rainforest of south-eastern Brazil

Phytotaxa ◽  
2017 ◽  
Vol 299 (1) ◽  
pp. 118
Author(s):  
LUCIANO FERREIRA MARGALHO ◽  
GEOVANE DE SOUZA SIQUEIRA ◽  
PIERO G. DELPRETE ◽  
MILTON GROPPO
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Atlantic Rainforest ◽  
Similar Species ◽  
Espírito Santo ◽  
South Eastern ◽  
Eastern Brazil ◽  
Espirito Santo ◽  
A New Species

Simira robusta (Rubiaceae), a new species from the Atlantic Rainforest of the Espírito Santo state, south-eastern Brazil, is here described and illustrated, and compared with similar species. It most resembles S. grazielae, from which it differs by the larger inflorescences, antrorse pubescent flowers and fruits, and by its larger fruits. Its habitat and conservation status are discussed. A key to the species of Simira from Espírito Santo state is provided.

Water geochemistry in a landscape gradient in an Atlantic rainforest environment, Ilha Grande, south-eastern Brazil

1998 ◽  
Vol 26 (3) ◽  
pp. 903-906
Author(s):  
F. C. F. De Paula ◽  
C. E. V. Carvalho ◽  
A. R. C. Ovalle ◽  
M. C. Bernardes ◽  
L. V. Barroso
Keyword(s):  
Atlantic Rainforest ◽  
Water Geochemistry ◽  
South Eastern ◽  
Eastern Brazil ◽  
Landscape Gradient

scholarly journals The nematode community in the Atlantic rainforest lizard Enyalius perditus Jackson, from south-eastern Brazil

2011 ◽  
Vol 86 (4) ◽  
pp. 395-400 ◽  
Author(s):  
A.F. Barreto-Lima ◽  
G.M. Toledo ◽  
L.A. Anjos
Keyword(s):  
Nematode Species ◽  
Parasite Fauna ◽  
Host Population ◽  
Atlantic Rainforest ◽  
Parasitic Fauna ◽  
South Eastern ◽  
Wild Fauna ◽  
Eastern Brazil ◽  
Ecological Aspects ◽  
Continental Area

AbstractStudies focusing on communities of helminths from Brazilian lizards are increasing, but there are many blanks in the knowledge of parasitic fauna of wild fauna. This lack of knowledge hampers understanding of ecological and parasitological aspects of involved species. Moreover, the majority of research has focused on parasitic fauna of lizards from families Tropiduridae and Scincidae. Only a few studies have looked at lizards from the family Leiosauridae, including some species of Enyalius. This study presents data on the gastrointestinal parasite fauna of Enyalius perditus and their relationships with ecological aspects of hosts in a disturbed Atlantic rainforest area in the state of Minas Gerais, south-eastern Brazil. Two nematode species, Oswaldocruzia burseyi [(Molineidae) and Strongyluris oscari (Heterakidae) were found. Nematode species showed an aggregated distribution in this host population, with O. burseyi being more aggregated than S. oscari. The present study extends the range of occurrence of O. burseyi to the Brazilian continental area.

Ecological aspects of the free-living ticks (Acari: Ixodidae) on animal trails within Atlantic rainforest in south–eastern Brazil

2009 ◽  
Vol 103 (1) ◽  
pp. 57-72 ◽  
Author(s):  
M. P. J. Szabó ◽  
M. B. Labruna ◽  
M. V. Garcia ◽  
A. Pinter ◽  
K. C. Castagnolli ◽  
...  
Keyword(s):  
Atlantic Rainforest ◽  
Free Living ◽  
South Eastern ◽  
Eastern Brazil ◽  
Ecological Aspects

Helminth communities of Leptodactylus latrans (Anura: Leptodactylidae) from the Atlantic rainforest, south-eastern Brazil

2013 ◽  
Vol 89 (2) ◽  
pp. 250-254 ◽  
Author(s):  
G.M. Toledo ◽  
D.H. Morais ◽  
R.J. Silva ◽  
L.A. Anjos
Keyword(s):  
Species Richness ◽  
Parasite Species ◽  
Parasitic Infection ◽  
Nematode Species ◽  
Atlantic Rainforest ◽  
Generalist Species ◽  
South Eastern ◽  
Helminth Communities ◽  
Eastern Brazil ◽  
Disturbed Environment

AbstractThe helminth fauna associated with Leptodactylus latrans, a large frog living in a disturbed environment of Atlantic rainforest in south-eastern Brazil, was evaluated. We found eight helminth taxa, including five nematode species, Falcaustra mascula, Oswaldocruzia subauricularis, Physaloptera sp., Rhabdias sp. and an unidentified cosmocercid, two trematodes, Gorgoderina parvicava and Haematoloechus fuelleborni, and one larval cestode. The overall prevalence of infection was 63.2% with a mean intensity of 11.3 ± 3.8. The cosmocercid nematode and O. subauricularis showed the highest prevalences, although the trematode G. parvicava was the most abundant and dominant parasite species. Host size positively influenced both the intensity of infection and parasite species richness. Our data suggest that the juvenile individuals of L. latrans are more susceptible to parasitic infection than the adults. The comparison of the similarity of this community component with that found in other studies in South America shows that, as well as the characteristics of the host, the sampling area also influences the parasitic fauna. Therefore, the results of this study agree that the helminth communities of frogs have relatively low species richness and dominance of generalist species.

scholarly journals Evidence of Elevational Speciation in Kerteszia cruzii (Diptera: Culicidae) in the Ribeira Valley, São Paulo, Brazil

2021 ◽  
Vol 9 ◽  
Author(s):  
Bruna Demari-Silva ◽  
Gabriel Zorello Laporta ◽  
Tatiane Marques Porangaba de Oliveira ◽  
Maria Anice Mureb Sallum
Keyword(s):  
Genetic Structure ◽  
Forest Cover ◽  
Isolation By Distance ◽  
Published Data ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
South Eastern ◽  
Eastern Brazil ◽  
Robust Evidence ◽  
Brazilian Atlantic Rainforest

Kerteszia cruzii [former Anopheles (Kerteszia) cruzii] is a bromeliad mosquito widespread in the Brazilian Atlantic rainforest. In South-eastern Brazil, it plays an important role in malaria transmission because it was infected with at least four Plasmodium species. There is robust evidence that Ke. cruzii is a species complex. We used single nucleotide polymorphisms (SNPs) from a nextRAD sequence (nextera-tagmented, reductively amplified DNA) to investigate the genetic structure of Ke. cruzii in the Ribeira Valley, South-eastern Brazil. Furthermore, we verified whether the genetic structure was associated with forest cover, elevation, slope, and vegetation physiognomy. Our results showed two distinct lineages in the studied region associated with elevation and isolation by distance. The first lineage included samples from coastal localities and the second comprised specimens from inland or mountain sites. At one sampling locality (Esteiro do Morro in Cananéia municipality), both lineages are sympatric. These results are in accordance with previously published data that showed elevated stratification in Ke. cruzii. However, Fst values did not indicate the existence of cryptic or sister species in Ke. cruzii in this region, we concluded that elevational speciation probably occurs, and we hypothesized that differences in population structure found might be associated with the distribution of bromeliad species.

Spatial organization of a bromeliad community in the Atlantic rainforest, south-eastern Brazil

1995 ◽  
Vol 11 (4) ◽  
pp. 559-567 ◽  
Author(s):  
Erich A. Fischer ◽  
Andrea C. Araujo
Keyword(s):  
Rocky Shore ◽  
Shade Tolerance ◽  
Spatial Organization ◽  
Riparian Forest ◽  
Atlantic Rainforest ◽  
South Eastern ◽  
Eastern Brazil ◽  
Dispersal Agent

ABSTRACTThe habit, shade-tolerance and dispersal agent of 19 bromeliad species were studied in a rainforest community in order to relate specific traits to the spatial occurrence of the species. Highest density was found in riparian forest (RF), followed by restinga scrub (RE), rocky shore (RS) and dense canopy forest (DF). Terrestrial bromeliads occurred in open sites (RE and RS), epiphytes were absent in RS and facultative species occupied all four habitats. Bird-dispersed bromeliads occurred in the upper canopy, whereas those dispersed by mammals were low in the forest profile. Bromeliads which are dispersed by similar fauna fruit sequentially through the year. Differences in traits may allow the sharing of habitats and strata among species.

scholarly journals A new species ofEugenia(Myrtaceae) from south-eastern Brazil

2008 ◽  
Vol 158 (2) ◽  
pp. 306-308
Author(s):  
MARCELO DA COSTA SOUZA ◽  
MARLI PIRES MORIM
Keyword(s):  
New Species ◽  
South Eastern ◽  
Eastern Brazil ◽  
A New Species

scholarly journals Regionally extinct species rediscovered: the bush dog Speothos venaticus in Minas Gerais, south-eastern Brazil

Oryx ◽  
2014 ◽  
Vol 49 (1) ◽  
pp. 60-63 ◽  
Author(s):  
Guilherme Braga Ferreira ◽  
Marcelo Juliano Rabelo Oliveira ◽  
Rogério Cunha de Paula ◽  
Flávio Henrique Guimarães Rodrigues ◽  
Érica Daniele Cunha Carmo
Keyword(s):  
Protected Areas ◽  
Minas Gerais ◽  
The State ◽  
South American ◽  
North West ◽  
South Eastern ◽  
The North ◽  
Eastern Brazil ◽  
Bush Dog ◽  
Speothos Venaticus

AbstractThe bush dog Speothos venaticus, a rare Near Threatened South American canid that lives in packs, was thought to be extinct in Minas Gerais state, south-eastern Brazil, until recently. Here, we report four recent records of the species in Minas Gerais, the first in the state since the description of the species in 1842. All records are from the Cerrado ecosystem in the north and north-west of the state; two are from animals found dead, one from footprints and another from a camera trap. Three of the records were inside or close (< 10 km) to strict protected areas, in a region recognized as the Protected Areas Mosaic Sertão Veredas–Peruaçu, where we expect any new records of the bush dog to be found. We discuss the low probability of detecting the bush dog and the main regional threats to the species, and emphasize the need to protect large and interconnected natural areas and keep them free of domestic dogs to avoid the extinction of the bush dog in Minas Gerais.

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