Characterization of soil fauna under the influence of mercury atmospheric deposition in Atlantic Forest, Rio de Janeiro, Brazil

2015 ◽  
Vol 32 ◽  
pp. 217-227 ◽  
Author(s):  
Andressa Cristhy Buch ◽  
Maria Elizabeth Fernandes Correia ◽  
Daniel Cabral Teixeira ◽  
Emmanoel Vieira Silva-Filho
Keyword(s):  
Atmospheric Deposition ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Soil Fauna

scholarly journals Isolation and characterization of trypanosomatids, including Crithidia mellificae, in bats from the Atlantic Forest of Rio de Janeiro, Brazil

2019 ◽  
Vol 13 (7) ◽  
pp. e0007527 ◽  
Author(s):  
Diana Azeredo Rangel ◽  
Cristiane Varella Lisboa ◽  
Roberto Leonan Morim Novaes ◽  
Bruno Alves Silva ◽  
Renan de França Souza ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Isolation And Characterization

Variation in the helminth community structure of three sympatric sigmodontine rodents from the coastal Atlantic Forest of Rio de Janeiro, Brazil

2010 ◽  
Vol 85 (2) ◽  
pp. 171-178 ◽  
Author(s):  
R.O. Simões ◽  
J.G.R. Souza ◽  
A. Maldonado ◽  
J.L. Luque
Keyword(s):  
Multivariate Analysis ◽  
Community Structure ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Parasite Species ◽  
Helminth Community ◽  
Small Rodents ◽  
Component Community

AbstractOne hundred and eighty specimens of sigmodontine rodents living in sympatric conditions were collected in the Atlantic Forest in the state of Rio de Janeiro, Brazil (25Akodon cursor, 98Akodon montensisand 57Oligoryzomys nigripes) to examine whether the helminth structure and component communities can be characterized among these three closely related rodents. The parasite species richness was 9 inA. cursor, 12 inA. montensisand 12 inO. nigripes. Five species were common to the three rodent species, and eight were common toA. cursorandA. montensis. The trichostrongylids –Stilestrongylus etainA. cursor,S. aculeatainA. montensisandS. lanfrediaeinO. nigripes– were the species with highest dominance frequency and determined the characterization of individual community structures. The prevalence and abundance of concurrent helminth species among rodents were significantly different. Canonical multivariate analysis demonstrated a similar helminth community structure betweenA. cursorandA. montensisbut a high discrepancy betweenAkodonspp.and O. nigripes. Thus, the data indicated that small rodents such asA. cursor,A. montenisandO. nigripesthat are sympatric and phylogenetically related have a different community structure, but similar component community, suggesting the role of helminth specificity and the hosts' habitats as determinants in structuring their helminth communities.

scholarly journals Soil fauna changes across Atlantic Forest succession

2018 ◽  
Vol 9 (2) ◽  
pp. 162-174 ◽  
Author(s):  
Maria Elizabeth Fernandes Correia ◽  
Rodrigo Camara ◽  
Claudia Reis Ferreira ◽  
Alexander Silva Resende ◽  
Lúcia Helena Cunha dos Anjos ◽  
...  
Keyword(s):  
Soil Quality ◽  
Atlantic Forest ◽  
Ecosystem Functioning ◽  
Secondary Succession ◽  
Rio De Janeiro ◽  
Soil Fauna ◽  
Forest Succession ◽  
Standing Stock ◽  
Dry Season ◽  
Forest Fragments

The soil fauna can be used as a bioindicator of soil quality and ecosystem functioning. The present study aimed to assess the effect of the Atlantic Forest secondary succession on the structure and composition of the soil fauna community in Itaboraí, Rio de Janeiro. We selected five areas along a gradient of forest succession: pasture (PA) and four forest fragments (FF1, FF2, FF3, FF4), which are in a toposequence. Thus, we divided the areas in upper, middle and lower thirds and delimitated a transect (20 m) in each third. In the dry season 2010, a metalic square (0.25 m x 0.25 m) was released in five points spaced 5 m apart, in each transect. The soil fauna was manually captured on samples of the litter standing stock and blocks of the topsoil (0.00-0.10 m), circumscribed to the square, in the forest fragments. In PA, we colected only the topsoil blocks. The complexity of the structure and composition of the soil fauna community increased in the topsoil and litter standing stock, along the successional gradient. However, the similarity among the areas was much greater in the litter standing stock, in comparison to the topsoil.

scholarly journals Characterization of ciliate diversity in bromeliad tank waters from the Brazilian Atlantic Forest

2017 ◽  
Vol 61 ◽  
pp. 359-365 ◽  
Author(s):  
Taiz L.L. Simão ◽  
Adriana Giongo Borges ◽  
Kelsey A. Gano ◽  
Austin G. Davis-Richardson ◽  
Christopher T. Brown ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Brazilian Atlantic Forest

Bioacoustic analysis in Scinax hayii (Barbour, 1909) (Anura, Hylidae) at its type locality in Petrópolis, Rio de Janeiro, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4232 (4) ◽  
pp. 582 ◽  
Author(s):  
LUCAS RODRIGO DOS SANTOS ◽  
ITAMAR ALVES MARTINS
Keyword(s):  
Species Distribution ◽  
Morphological Variation ◽  
Rio De Janeiro ◽  
Type Locality ◽  
Advertisement Call ◽  
Advertisement Calls ◽  
Call Type ◽  
Bioacoustic Analysis

Scinax hayii was described in 1909 from the municipality of Petrópolis, State of Rio de Janeiro, Brazil. Morphological variation and advertisement calls have been previously reported for other populations across the species distribution (Lutz 1973; Heyer et al. 1990; Cardoso & Andrade 1991; Pombal et al. 1995; Magrini et al. 2011; Abrunhosa et al. 2014). However, no information on calls are available from specimens recorded at the type locality, preventing the correct characterization of the species (Magrini et al. 2011). Here we describe the advertisement call and a second call type of S. hayii from Petrópolis, as a contribution towards a better understanding of the taxonomy of this species. 

scholarly journals Effects of Natural Atlantic Forest Regeneration on Soil Fauna, Brazil

2017 ◽  
Vol 25 (1) ◽  
Author(s):  
Rodrigo Camara ◽  
Gilsonley Lopes dos Santos ◽  
Marcos Gervasio Pereira ◽  
Cristiane Figueira da Silva ◽  
Vanessa Francieli Vital Silva ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Forest Regeneration ◽  
Soil Fauna

scholarly journals Spatial continuity of soil attributes in an Atlantic Forest remnant in the Mantiqueira Range, MG

2013 ◽  
Vol 37 (1) ◽  
pp. 68-77 ◽  
Author(s):  
Marcela de Castro Nunes Santos ◽  
José Marcio de Mello ◽  
Carlos Rogério de Mello ◽  
Léo Fernandes Ávila
Keyword(s):  
Atlantic Forest ◽  
Spatial Dependence ◽  
Soil Bulk Density ◽  
Exchange Capacity ◽  
Dependence Structure ◽  
Spatial Continuity ◽  
Soil Attributes ◽  
Forest Remnant ◽  
Spatial Dependence Structure

The spatial characterization of soil attributes is fundamental for the understanding of forest ecosystems. The objective of this work was to develop a geostatistical study of chemical and physical soil attributes at three depths (D1 - 0-20 cm; D2 - 20-50 cm; D3 - 50-100 cm), in an Experimental Hydrographic Micro-catchment entirely covered by Atlantic Forest, in the Mantiqueira Range region, Minas Gerais. All the considered variables presented spatial dependence structure in the three depths, and the largest degrees of spatial dependence were observed for pH in the three depths, soil cation exchange capacity potential in D3, soil organic matter in D1 and D3 and clay and soil bulk density in D2. The method most used for the adjustments of semi-variogram models was the Maximum Likelihood and the most selected model was the Exponential. Furthermore, the ordinary kriging maps allowed good visualization of the spatial distribution of the variables.

scholarly journals An albino armored catfish Schizolecis guntheri (Siluriformes: Loricariidae) from an Atlantic Forest coastal basin

2005 ◽  
Vol 3 (1) ◽  
pp. 123-125 ◽  
Author(s):  
Marcelo F. G. de Brito ◽  
Érica P. Caramaschi
Keyword(s):  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Southeastern Brazil ◽  
Janeiro State ◽  
Coastal Basin

We report here on an albino specimen of Schizolecis guntheri caught in the rio Bonito in the rio Macaé basin, Rio de Janeiro State, southeastern Brazil. The hypothesis that albinism is more common in fishes with cryptobiotic and/or nocturnal habits is strengthened by additional records of this chromatic anomaly.

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