scholarly journals Colony size, sex ratio and cohabitation in roosts of Phyllostomus hastatus (Pallas) (Chiroptera: Phyllostomidae)

2010 ◽  
Vol 70 (4) ◽  
pp. 1047-1053 ◽  
Author(s):  
LM. Costa ◽  
EC. Lourenço ◽  
CEL. Esbérard ◽  
RM Silva
Keyword(s):  
Sex Ratio ◽  
Colony Size ◽  
Protected Area ◽  
Rio De Janeiro ◽  
Neotropical Region ◽  
Hollow Trees ◽  
Phyllostomus Hastatus ◽  
Molossus Molossus ◽  
Janeiro State ◽  
Hollow Tree

Phyllostomus hastatus bat is species broadly distributed over the Neotropical region, which uses as diurnal roosts caves, hollow trees, palm leaves and human buildings. Thirteen diurnal roosts of P. hastatus were analysed from 1990 to 2009 in several localities of Rio de Janeiro State, regarding environment (rural, urban or protected area), type of roost (hollow tree, basement or roof), sex ratio and cohabitation. A nocturnal roost was also analysed. Sex ratio of P. hastatus varied considerably among roosts what may be explained by the fact this species can roost alone, in couples, in harems or in groups of bachelor males. Phyllostomus hastatus was observed in cohabitation with three other species: Molossus rufus, Molossus molossus and Myotis nigricans. Due to the frequency of cohabitation observed between P. hastatus and species of the genus Molossus, one or more advantages for the members of this association may be expected. The simultaneous usage of a feeding roost by a group of bachelor males is unknown information in the literature, and may suggest that this kind of group may interact with each other even when away from their diurnal roosts.

scholarly journals Bat diversity of Ilha da Marambaia, Southern Rio de Janeiro State, Brazil (Chiroptera, Mammalia)

2010 ◽  
Vol 70 (3) ◽  
pp. 511-519 ◽  
Author(s):  
EC. Lourenço ◽  
LM. Costa ◽  
RM. Silva ◽  
CEL. Esbérard
Keyword(s):  
Rio De Janeiro ◽  
Abundant Species ◽  
Water Bodies ◽  
Abundance Patterns ◽  
Molossus Molossus ◽  
Bat Diversity ◽  
Janeiro State

Few sites have been well sampled for bats, and samplings in islands are even scarcer. Therefore, the objectives of the present study were: (1) to list the bat species of Ilha da Marambaia; (2) to compare richness, abundance and biomass of bat guilds found there; (3) to analyse abundance patterns of bat species; and (4) to compare richness, abundance and composition of the bat fauna among different kinds of environment. To capture bats we used mist nets set in five different environments, totalising 3559.2 net-hours, during 37 nights between October 2006 and August 2008. A total of 1,133 captures were accomplished, comprising 34 species from five families. The most abundant species was Molossus molossus. Frugivorous bats exhibited higher richness, abundance and biomass if compared to other guilds. Most species (N = 22) exhibited abundances between 1 to 10% of all captures. Sixteen species were restricted to just one of the environments sampled. The high richness may be attributed to sampling carried out in several environments, and to the capture of insectivorous species over water bodies.

New species of Helicopsyche von Siebold 1856 (Trichoptera: Helicopsychidae) from Brazil, including the redescription of Helicopsyche (Feropsyche) planorboides Machado 1957

Zootaxa ◽  
2019 ◽  
Vol 4619 (2) ◽  
pp. 231-250
Author(s):  
LEANDRO LOURENÇO DUMAS ◽  
JORGE LUIZ NESSIMIAN
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Rio De Janeiro ◽  
Neotropical Region ◽  
Type Series ◽  
Extant Species ◽  
Von Siebold ◽  
Espirito Santo ◽  
First Time ◽  
Janeiro State

Helicopsyche has about 270 extant species widely distributed, with highest species diversity in tropical and subtropical areas. Currently, the genus is divided into six subgenera, with only two of them occurring in the Neotropical region. In Brazil, 28 species of Helicopsyche have been recorded, being nine in Cochliopsyche and 19 in Feropsyche. In this paper, we describe, diagnose and illustrate six new species of Helicopsyche subgenus Feropsyche from Rio de Janeiro state, Brazil: Helicopsyche bendego sp. nov., H. daome sp. nov., H. dinoprata sp. nov., H. luziae sp. nov., H. petri sp. nov., and H. shaamunensu sp. nov. Furthermore, H. (F.) planorboides is redescribed based on the holotype and additional specimens; the type series of this species is now deposited in the collection of the Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro. Finally, Helicopsyche (F.) catoles, H. (F.) guara and H. (F.) planorboides are reported for the first time from Rio de Janeiro state, Brazil, the last one also listed for Espírito Santo state, Brazil. 

scholarly journals Parameters from the community of leaf-litter frogs from Estação Ecológica Estadual Paraíso, Guapimirim, Rio de Janeiro State, southeastern Brazil

2011 ◽  
Vol 83 (4) ◽  
pp. 1259-1268 ◽  
Author(s):  
Carlos F.D. Rocha ◽  
Davor Vrcibradic ◽  
Mara C. Kiefer ◽  
Carla C. Siqueira ◽  
Mauricio Almeida-Gomes ◽  
...  
Keyword(s):  
South America ◽  
Central America ◽  
Leaf Litter ◽  
Rio De Janeiro ◽  
Sampling Methods ◽  
Abundant Species ◽  
Neotropical Region ◽  
Southeastern Brazil ◽  
Plot Sampling ◽  
Janeiro State

We studied the leaf-litter frog community of Estação Ecológica Estadual Paraíso, in Guapimirim, Rio de Janeiro State, southeastern Brazil. Herein we combined three sampling methods (large plots, visual encounter surveys and pit-fall traps) to present data on species composition, richness, relative abundance and densities. The local assemblage of frogs associated to the leaf-litter was composed by 14 species, belonging to nine families. Haddadus binotatus, a direct-developing frog, was the most abundant species in the community. The estimated density of the local leaf-litter frog assemblage based on plot sampling was 4.3 frogs/100 m². Haddadus binotatus had the highest density (1.1 ind/100 m²). Frogs were predominantly found at night. Thoropa miliaris had the largest values of SVL (39.0 ± 10.3 mm), whereas the smallest species were Euparkerella brasiliensis (16.7 ± 2.2 mm) and E. cochranae (16.0 ± 2.7 mm). Rhinella ornata had the highest mean body mass (12.1 ± 7.5 g), and E. cochranae the lowest (0.4 ± 0.2 g). The overall frog mass was 938.6 g/ha. Our data support that higher densities of leaf-litter frogs tend to occur in the Neotropical region compared to the OldWorld tropics, tending to be higher in Central America than in South America.

scholarly journals Visits of bats to flowers of Lafoensia glyptocarpa KOEHNE (LYTHRACEAE)

1999 ◽  
Vol 59 (1) ◽  
pp. 19-22 ◽  
Author(s):  
S. S. P. SILVA ◽  
A. L. PERACCHI
Keyword(s):  
Tree Species ◽  
Rio De Janeiro ◽  
Food Resources ◽  
Behavior Patterns ◽  
Glossophaga Soricina ◽  
Phyllostomus Hastatus ◽  
Artibeus Lituratus ◽  
Landing Behavior ◽  
Janeiro State

In the present study visits of phyllostomid bats to the Lafoensia glyptocarpa Kohne flowers were observed at Federal Rural University of Rio de Janeiro, Itaguaí municipality, Rio de Janeiro state. This tree species present floral characteristics to fit the "chiropterophilous syndrome", encouraging the visit of four species of bats which showed different behavior patterns, according to their size, weight and access to the food resources. Glossophaga soricina (Pallas, 1766) showed hovering behavior. Phyllostomus hastatus (Pallas, 1767) and Platyrrhinus lineatus (Geoffroy, 1810) showed landing behavior and Artibeus lituratus (Olfers, 1818) fed during the quick flight, without a real landing.

scholarly journals Ocorrência e aspectos da biologia reprodutiva de Harttia loricariformis (Loricariinae) no trecho inferior do rio Paraíba do Sul (Rio de Janeiro, Brasil)

1998 ◽  
Vol 27 ◽  
Author(s):  
Márcia Santos De Menezes ◽  
José Marcelo Rocha Aranha
Keyword(s):  
Sex Ratio ◽  
Rio De Janeiro ◽  
Rio Grande ◽  
Reproductive Season ◽  
Clear Water ◽  
Multiple Spawning ◽  
Janeiro State ◽  
Paraíba Do Sul River

Analisamos 242 exemplares de Harttia loricariformis no trecho inferior da bacia do no Paraíba do Sul (RJ). A ocorrência da espécie esteve associada ao tipo de ambiente, predominando no rio Grande (42,4% do total dc exemplares capturados), em ambientes de água clara e encachoeirados. Os machos apresentaram comprimentos maiores que as fêmeas, porém machos e fêmeas iniciam o processo de desenvolvimento gonadal com tamanhos semelhantes (10,4 cm — machos e 10,0 cm — fêmeas). A reprodução foi sazonal, estendendo-se de setembro a fevereiro, principalmente em setembro-outubro. Na época reprodutiva houve predomínio de fêmeas. Análises microscópicas confirmaram desova tipo parcelada. ABSTRACT We analysed 242 fishes of Harttia loricariformis from the lower Paraíba do Sul river, Rio de Janeiro state. The occurrence of this species was related to features of the environment. it was preponderance in the Grande river (82.4%), being most frequent in clear water and in rapids. Males were bigger than females, even though both have started the development of their gonads with similar sizes (10.4 cm in males and 10.0 cm in females). The reproduction was seasonal and it happened between September and February, being more intensive in September and October. Females prevailed over males during the reproductive season. The kind of spawning was histologycally confirmed as a multiple spawning. RÉSUMÉ Deux-cents quarante deux exemplaires de Harttia loricariformis ont été analysés dans le secteur inférieur du bassin du fleuve Paraíba do Sul, Rio de Janeiro, Brésil. La présence de l’espéce est associée aux conditions du milieu; elle est dominante en abondance numérique (82,4%) dans le fleuve Grande, et dans les eaux claires et les rapides. Les mâles sont plus grands que les femeiles, pourtant la taille de primiére rnaturité sexuelle est voisine (10,4 cm et 10,0 cm, respectivement). La ponte est saisonnière et se deroule de septembre à février avec un pic en september-octobre. Durant cette période, la sex-ratio est en faveur des confirmé que la ponte est séquentielle.

scholarly journals Inventory of the Lamiinae species (Insecta, Coleoptera, Cerambycidae) of the Parque Nacional do Itatiaia, RJ, Brazil

2012 ◽  
Vol 12 (1) ◽  
pp. 39-76 ◽  
Author(s):  
Marcela Laura Monné ◽  
Miguel Angel Monné ◽  
Hingrid Yara Quintino ◽  
Juan Pablo Botero ◽  
Vanessa Souza Machado ◽  
...  
Keyword(s):  
Rio De Janeiro ◽  
Field Work ◽  
Neotropical Region ◽  
Atlantic Rainforest ◽  
Parque Nacional Do Itatiaia ◽  
New Distribution ◽  
Janeiro State ◽  
Respective Number

A survey of the Lamiinae species recorded in the Parque Nacional do Itatiaia, Rio de Janeiro State, Brazil, is presented. The data were based on literature, field work and in the collection of the Museu Nacional, Universidade Federal do Rio de Janeiro. Three hundred and twenty two species of Lamiinae are registered, and this represents about 30% of the species that occur in the Atlantic Rainforest. Forty two new distribution records are registered. One hundred and thirty five species are illustrated. A comparative table showing the respective number of genera and species of Lamiinae that occur in the Neotropical Region, Atlantic Rainforest and Parque Nacional do Itatiaia is given.

Filling a knowledge gap of two centuries: rediscovery of Eugenia subamplexicaulis (Myrtaceae) with notes on its morphology, distribution and conservation

Phytotaxa ◽  
2020 ◽  
Vol 428 (2) ◽  
pp. 139-145
Author(s):  
THIAGO FERNANDES ◽  
JAIR EUSTÁQUIO QUINTINO FARIA ◽  
CAROLYN ELINORE BARNES PROENÇA ◽  
JOÃO MARCELO ALVARENGA BRAGA
Keyword(s):  
Geographic Distribution ◽  
Protected Area ◽  
Rio De Janeiro ◽  
Conservation Status ◽  
Original Description ◽  
Morphological Description ◽  
Paulo State ◽  
First Time ◽  
Janeiro State ◽  
Made In

Eugenia subamplexicaulis belongs to Eugenia sect. Pilothecium and was described based on a collection made in São Paulo state by C.F.P. von Martius in 1817. After that, no other collection of this species was made until May 2018, over 200 years later, when this species was rediscovered in the rocky formation Monumento Natural da Pedra de Itaocaia, a protected area located in Rio de Janeiro state. This study provides an enhanced morphological description of the species, notes on its morphological affinities, geographic distribution and conservation status. The species can be recognized by its subsessile leaves, dichasial inflorescences and oblate fruits with up to three seeds. The fruits are described for the first time, since the original description was based only on a single flowering specimen. Additionally, the first photographic documentation of the live plant in its habitat is presented.

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