scholarly journals Bionomy of Mosquitoes in Bamboo Internodes in an Atlantic Forest Remnant of the State of Rio De Janeiro, Brazil

2021 ◽  
Vol 37 (4) ◽  
pp. 208-215
Author(s):  
Amanda Queiroz Bastos ◽  
Paulo José Leite ◽  
Cecilia Ferreira de Mello ◽  
Daniele Aguiar Maia ◽  
Sergio Lisboa Machado ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Adult Stage ◽  
Mosquito Species ◽  
Common Species ◽  
Complex Environments ◽  
Ecological Studies ◽  
Immature Development ◽  
Forest Remnant ◽  
Mosquito Oviposition

ABSTRACT Living bamboo stalks are one of the most specialized habitats for mosquito oviposition and immature development. Most of the mosquito species that breed in these habitats are sylvatic, and some are of importance for public health as possible vectors of pathogens. Perforated internodes are a very specialized environment due to the difficulty of access. Furthermore, due to their relatively simple fauna, they represent a valuable model for ecological studies that may be applicable to more complex environments. This study aims to assess the mosquito bionomics of species raised in bamboo internodes. Therefore, the diversity of mosquito species and the influence of abiotic variables (pH and temperature) on the distribution of mosquitoes that breed in this habitat were analyzed. The study area is a fragment of Atlantic Forest within the Association of da Armada (ATA) in Nova Iguaçu, state of Rio de Janeiro, Brazil. Immature mosquitoes were sampled with suction tubes (mouth aspirators) between August 2017 and July 2018. A total of 3,170 larvae were collected in 5 bamboo plants, each with 8 stalks perforated. Of these, 688 larvae reached the adult stage, representing 10 genera and 19 species. The most common species were Culex neglectus (43%), Trichoprosopon digitatum (22%), Culex iridescens (8%), Sabethes identicus (7%), and Orthopodomyia albicosta (7%). The richness of the immatures collected in the ATA was 19 species, with a diversity of 1.10 and Shannon evenness of 0.57. A diverse composition of Culicidae in bamboo stalks was found, although dominance was low.

scholarly journals Species composition and density estimates of the anurofauna of a site within the northernmost large Atlantic Forest remnant (Parque Estadual do Desengano) in the state of Rio de Janeiro, Brazil

2011 ◽  
Vol 11 (4) ◽  
pp. 131-137 ◽  
Author(s):  
Carla da Costa Siqueira ◽  
Davor Vrcibradic ◽  
Mauricio Almeida-Gomes ◽  
Vanderlaine Amaral Menezes ◽  
Vitor Nelson Teixeira Borges-Junior ◽  
...  
Keyword(s):  
Species Composition ◽  
Leaf Litter ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Northern Region ◽  
The State ◽  
Density Estimates ◽  
Plot Sampling ◽  
Forest Remnant ◽  
A Site

We present data on species composition, relative abundance and estimated densities for leaf-litter anuran amphibians from an Atlantic Forest area within the Parque Estadual do Desengano, in the state of Rio de Janeiro, Brazil, based on results of a short-term survey carried out during the winter at altitudes of 1000-1500 m. Three sampling methods were used: plot sampling, visual encounter surveys (VES; performed during the day, at the twilight, and at night), and pitfall traps. We recorded 13 species, with the direct-developer Ischnocnema parva (Girard, 1853) being the most abundant. Most frogs (ca. 90% of all individuals) sampled by VES were captured during the crepuscular and nocturnal periods. The estimated density of the local leaf-litter frog assemblage based on plot sampling was 13.2 ind.100 m-2, which is one of the highest values currently reported for Atlantic Rainforest areas. This is the first study analyzing the anuran fauna of the Parque Estadual do Desengano and adds to the knowledge of the fauna of the northern region of the state of Rio de Janeiro, which is still poorly studied.

scholarly journals Feeding habits of Enyalius perditus (Squamata: Leiosauridae) in an Atlantic Forest remnant in southeastern Brazil

2016 ◽  
Vol 15 (1) ◽  
pp. 21 ◽  
Author(s):  
Thiago Maia-Carneiro ◽  
Tatiana Motta-Tavares ◽  
Davor Vrcibradic ◽  
Mara C. Kiefer ◽  
Thiago A. Dorigo ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Local Food ◽  
Feeding Habits ◽  
The State ◽  
Southeastern Brazil ◽  
Ecological Aspects ◽  
Forest Remnant

Feeding habits of Enyalius perditus (Squamata: Leiosauridae) in an Atlantic Forest remnant in southeastern Brazil. In the present study, we aimed to provide information regarding feeding habits and other ecological aspects of Enyalius perditus in an Atlantic Forest remnant in the state of Rio de Janeiro, southeastern Brazil. Enyalius perditus individuals in Rio de Janeiro fed predominantly upon arthropods such as caterpillars, isopods, and spiders, as is typical of lizards in the genus. There were no pronounced variations in the main types of prey consumed between this and other populations of E. perditus studied in spite of potential differences in local food supplies between environments. The individuals consumed fragments of dead leaves, ingested prey commonly found in leaf litter (e.g., Isopoda and Coleoptera larvae), and were sometimes

scholarly journals Frogs of Marambaia: a naturally isolated Restinga and Atlantic Forest remnant of southeastern Brazil

2008 ◽  
Vol 8 (4) ◽  
pp. 167-174 ◽  
Author(s):  
Hélio Ricardo da Silva ◽  
André Luiz Gomes de Carvalho ◽  
Gabriela Bueno Bittencourt-Silva
Keyword(s):  
Natural History ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
The State ◽  
Southeastern Brazil ◽  
Forest Remnant ◽  
Habitat Usage

We report the results of a seven-year survey of the anurans of Marambaia, in the State of Rio de Janeiro, southeastern Brazil, where 24 species were recorded. The species represented nine families: Hylidae (10 species), Bufonidae (3), Leptodactylidae (3), Hylodidae (2), Microhylidae (2), Craugastoridae (1), Centrolenidae (1), Cycloramphidae (1), and Leiuperidae (1). We also present notes on the natural history and habitat usage by the anurans.

scholarly journals Spawning behavior of Aedini (Diptera: Culicidae) in a remnant of Atlantic Forest in the state of Rio de Janeiro

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Amanda Queiroz Bastos ◽  
Paulo José Leite ◽  
Jacenir Reis dos Santos-Mallet ◽  
Cecilia Ferreira de Mello ◽  
Michele Serdeiro ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Oviposition Behavior ◽  
Mosquito Species ◽  
Species Abundance ◽  
Ground Level ◽  
Forest Fragment ◽  
Forest Environment ◽  
Ecological Gradient ◽  
Significant Difference

Abstract Background Mosquito assemblages are organized along an ecological gradient, including small habitats where interspecific competition predominates and large permanent habitats where predation predominates. This study aimed to analyze the oviposition behavior of mosquitoes regarding the preference for traps installed at two different heights with regard to ground level and the tendency to share spawning sites in an Atlantic Forest fragment in Nova Iguaçu, State of Rio de Janeiro, Brazil. Methods The eggs were collected from April 2018 to March 2019. Twelve ovitraps were used, randomly distributed in trees at ground level and at a height of 3 m in a forest environment. Results They were sequentially numbered, monitored, and replaced every 2 weeks. Among the 5818 eggs collected, 3941 hatched, 3756 reached the pupa stage, and 2370 reached the adult stage. The most abundant species were Aedes albopictus (63%) and Haemagogus leucocelaenus (35%), followed by Aedes terrens (2%) and Haemagogus janthinomys (1%). Analyses showed a significant difference of (P = 0.02) between the number of mosquito species collected in the palettes at ground level and the number collected at the height of 3 m. Cluster analysis of species abundance showed that the eggs collected in the palettes at ground level were more abundant than those collected in the palettes at the height of 3 m. We detected co-occurrence of species in the oviposition palettes; according to the null model, such species distribution was not random. Conclusions The exploitation of oviposition sites by mosquito species can represent an event forced by population density facilitated by the ecological valence of individuals of one species. Understanding the aggregate distribution of larvae at the oviposition site allows us to conduct more in-depth studies of the oviposition behavior of female mosquitoes. Graphical Abstract

scholarly journals Diversity, community structure and conservation status of an Atlantic Forest fragment in Rio de Janeiro State, Brazil

2015 ◽  
Vol 15 (2) ◽  
Author(s):  
Vinicius Costa Cysneiros ◽  
Joaquim de Oliveira Mendonça-Junior ◽  
Tatiana Dias Gaui ◽  
Denise Monte Braz
Keyword(s):  
Community Structure ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Diversity Index ◽  
Conservation Status ◽  
The State ◽  
Forest Fragments ◽  
Forest Fragment ◽  
Importance Value ◽  
Forest Remnant

The State of Rio de Janeiro still holds unknown portions of the Atlantic Forest, which represent gaps in the knowledge of this ecosystem. Paracambi and neighbor municipal districts comprise a vast stretch of virtually unknown forest that makes up part of the Serra do Mar biodiversity corridor. The following study describes the tree community structure in a stretch of the ombrophilous Atlantic Forest, in the Parque Natural Municipal do Curió (Curio MNP), Paracambi, Rio de Janeiro, which serves as the basis to evaluate species diversity and conservation status. The altitudes in the area ranges from 100 to 690 m and the climate varies from mild subtropical to tropical hot and humid. Forty plots (10x10m) were randomly placed along the area, where all the stems equal to or greater than five centimeters (5 cm) diameter at breast high from ground level were measured. A total of 749 individuals, pertaining to 128 genera and 210 species were recorded, eight of which are listed as threatened of extinction in the Brazilian flora. The Shannon-Weaver diversity index (H′) was 4.7 nat.ind.-1 and the species with greater importance value was Pseudopiptadenia contorta (1.6460 m2; 18 individuals) while the most common species wereSenefeldera vertcilata (48) and Actinostemon verticilatus (47 individuals). Despite the sample area being a little smaller than that commonly adopted in tropical studies, data pointed to a richness hitherto not registered in any other study for the State of Rio de Janeiro, no matter the inclusion criteria used, and also confirmed by the two estimator indices used, which have revealed very similar results. The vertical forest structure, the values associated to the successional stage of the species and other aspects of community structure indicate that the Curio MNP encompasses forest stretches in advanced stages of ecological succession. Besides its key location for the connectivity of forest fragments in the region, the results emphasize the ecological importance of this forest remnant and the need for its conservation.

Tortoise beetles of an Atlantic Forest remnant in south Minas Gerais, Brazil: host plants and life history

2021 ◽  
Vol 55 (1-2) ◽  
pp. 15-60
Author(s):  
Paula A. A. Gomes ◽  
Marcel G. Hermes ◽  
Flávia R. Fernandes ◽  
Fernando A. Frieiro-Costa
Keyword(s):  
Life History ◽  
Atlantic Forest ◽  
Host Plants ◽  
Minas Gerais ◽  
Forest Remnant

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.

scholarly journals Medium and large-sized mammals of the Reserva Ecológica de Guapiaçú, Cachoeiras de Macacu, RJ

2014 ◽  
Vol 14 (3) ◽  
Author(s):  
Israel Dias de Carvalho ◽  
Rildo de Oliveira ◽  
Alexandra dos Santos Pires
Keyword(s):  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Camera Traps ◽  
Large Mammals ◽  
Terrestrial Mammals ◽  
Mammal Conservation ◽  
Pecari Tajacu ◽  
Local Extinctions ◽  
Global Threat ◽  
Janeiro State

Medium and large-sized terrestrial mammals develop important functions in ecosystems maintenance. However, this group is the most vulnerable to local extinctions, through habitat loss or hunting. This study inventoried the community of medium and large mammals in the Reserva Ecológica de Guapiaçú (REGUA), Cachoeiras de Macacu, RJ, providing data on species composition, richness and abundance. Species were registered through the use of camera traps, sign survey and visual encounters on pre-existing trails and roads. The study was conducted from January to October 2012, with each month considered as a sample unit. An effort of 1568 cameras-day and 120 km traveled, resulted on 302 records of 22 species of medium and large-sized mammals, belonging to eight orders. This value corresponds to more than three-quarters of the richness described from this group in the Atlantic Forest of Rio de Janeiro state. Five species are under some level of regional, national or global threat. Three game species, Pecari tajacu, Cuniculus paca and Dasyprocta leporina were abundant in the area. The observed richness was comparable to that found in other studies conducted in rain forests. Thus, for its high number of species, including those under some degree of threat, we conclude that REGUA is an important area to mammal conservation, especially in the Atlantic Forest of Rio de Janeiro state.

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