scholarly journals Territory size of three Antbirds (Aves, Passeriformes) in an Atlantic Forest fragment in southeastern Brazil

2006 ◽  
Vol 23 (3) ◽  
pp. 692-698 ◽  
Author(s):  
Charles Duca ◽  
Tadeu J. Guerra ◽  
Miguel Â. Marini
Keyword(s):  
Forest Edge ◽  
Neotropical Region ◽  
Bird Communities ◽  
Territory Size ◽  
Southeastern Brazil ◽  
Forest Fragment ◽  
Dirt Road ◽  
Forested Landscapes ◽  
Pyriglena Leucoptera ◽  
Polygon Method

Territory size is an important ecological attribute of populations that has been considered a factor determines population density. Antbirds is a large group of mainly insectivorous Neotropical passerines, usually well represented in bird communities from forested landscapes in Neotropical region. Territory sizes for three Antbirds, Thamnophilus caerulescens (Vieillot, 1816) (Variable Antshrike), Dysithamnus mentalis (Temmink, 1823) (Plain Antvireo) e Pyriglena leucoptera (Vieillot, 1818) (White-shouldered Fire-eye), were mapped and their area estimated by the convex polygon method in a 50 ha forest fragment, in southeastern Brazil. The three species presented small territories of similar sizes (< 2 ha) both during the non-reproductive and the reproductive seasons of 2000-2001. Territories overlapped considerably among species but not intraspecifically. Territory sizes increased with body mass of the three species studied (P. leucoptera > T. caerulescens > D. mentalis). We failed to find any effect on territory size for the three species associated with forest edge or distance to the dirt road.

New species of Rineloricaria (Siluriformes: Loricariidae) from the Paranaíba River basin, Brazil

Zootaxa ◽  
2021 ◽  
Vol 5072 (6) ◽  
pp. 531-540
Author(s):  
GUILHERME JOSÉ DA COSTA-SILVA ◽  
CLAUDIO OLIVEIRA ◽  
GABRIEL DE SOUZA DA COSTA E SILVA
Keyword(s):  
New Species ◽  
River Basin ◽  
Color Pattern ◽  
Neotropical Region ◽  
Valid Species ◽  
Southeastern Brazil ◽  
Dark Spot ◽  
Caudal Fin ◽  
Fin Ray ◽  
First Ray

Rineloricaria is a genus of armored catfish encompassing 67 valid species that are widely distributed throughout the Neotropical region. A new species of Rineloricaria is described from the Paranaíba River, Upper Paraná River basin, southeastern Brazil. Rineloricaria rodriquezae sp. n. is distinguished from its congeners by the combination of the following characters: caudal-fin color pattern with basal dark spot and subterminal dark bar on branched rays interspersed with a hyaline area; five series of lateral plates with two keeled in the mid-dorsal series around the insertion of the first ray of dorsal fin; and unbranched caudal-fin ray extended as long filaments.  

scholarly journals Feather mites (Acari, Astigmata) associated with birds in an Atlantic Forest fragment in Northeastern Brazil

2015 ◽  
Vol 75 (3) ◽  
pp. 726-735 ◽  
Author(s):  
HM Silva ◽  
FA Hernandes ◽  
M Pichorim
Keyword(s):  
Atlantic Forest ◽  
Bird Species ◽  
Rio Grande ◽  
Neotropical Region ◽  
Species Level ◽  
Northeastern Brazil ◽  
Forest Fragment ◽  
Visual Examination ◽  
Feather Mites ◽  
First Time

AbstractThe present study reports associations between feather mites (Astigmata) and birds in an Atlantic Forest fragment in Rio Grande do Norte state, in Brazil. In the laboratory, mites were collected through visual examination of freshly killed birds. Overall, 172 individuals from 38 bird species were examined, between October 2011 and July 2012. The prevalence of feather mites was 80.8%, corresponding to 139 infested individuals distributed into 30 species and 15 families of hosts. Fifteen feather mite taxa could be identified to the species level, sixteen to the genus level and three to the subfamily level, distributed into the families Analgidae, Proctophyllodidae, Psoroptoididae, Pteronyssidae, Xolalgidae, Trouessartiidae, Falculiferidae and Gabuciniidae. Hitherto unknown associations between feather mites and birds were recorded for eleven taxa identified to the species level, and nine taxa were recorded for the first time in Brazil. The number of new geographic records, as well as the hitherto unknown mite-host associations, supports the high estimates of diversity for feather mites of Brazil and show the need for research to increase knowledge of plumicole mites in the Neotropical region.

Dynamics of a dry forest fragment after the exclusion of human disturbance in southeastern Brazil

Plant Ecology ◽  
2004 ◽  
Vol 174 (2) ◽  
pp. 339-348 ◽  
Author(s):  
Márcio de Souza Werneck ◽  
Edivani Villaron Franceschinelli
Keyword(s):  
Human Disturbance ◽  
Dry Forest ◽  
Southeastern Brazil ◽  
Forest Fragment

scholarly journals Dynamics and Edge Effect of an Atlantic Forest Fragment in Brazil

2016 ◽  
Vol 23 (3) ◽  
pp. 340-349 ◽  
Author(s):  
Poliana Gabriella Araújo Mendes ◽  
Maria Amanda Menezes Silva ◽  
Tassiane Novacosque Feitosa Guerra ◽  
Ana Carolina Borges Lins-e-Silva ◽  
Airton de Deus Cysneiros Cavalcanti ◽  
...  
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Edge Effect ◽  
Woody Plants ◽  
Response Times ◽  
Forest Edge ◽  
Northeastern Brazil ◽  
Forest Fragment ◽  
Canopy Tree ◽  
Forest Interior

ABSTRACT The woody plants in an edge area formed approximately 35 years ago in an Atlantic Forest fragment in northeastern Brazil were examined, and three environments defined: edge, intermediate, and interior. Canopy tree densities and basal areas were found to be similar in all three environments, and also similar to previous published studies in the same region; species richness was greatest at the forest edge. The understory showed greater species richness in the forest interior, but greater diversity and equitability in the intermediate environment. Understory environments close to the forest edge demonstrated larger stem diameters than in the forest interior, although at lesser densities and with smaller total basal areas. Our results indicated the existence of distinct patterns in canopy and understory that most likely reflect differences in the response times of these two vegetation layers, with the understory being more sensitive to alterations in environmental structure.

scholarly journals Food habits of snakes from the RPPN Feliciano Miguel Abdala, an Atlantic Forest fragment of southeastern Brazil

2009 ◽  
Vol 9 (1) ◽  
pp. 263-269 ◽  
Author(s):  
Cesar Felipe de Souza Palmuti ◽  
José Cassimiro ◽  
Jaime Bertoluci
Keyword(s):  
Cluster Analysis ◽  
Atlantic Forest ◽  
Food Habits ◽  
Stomach Contents ◽  
Southeastern Brazil ◽  
Forest Fragment ◽  
Diet Preferences

We present data on the diet of 15 species of snakes belonging to a community from Reserva Particular do Patrimônio Natural Feliciano Miguel Abdala, an Atlantic Forest fragment of Southeastern Brazil, based on their stomach contents. For 12 items we were able to determine the direction of the ingestion. Most snakes ingested the prey head-first. A cluster analysis was conducted with items grouped as chilopods, mollusks, adult anurans, anuran tadpoles, lizards, amphisbaenians, snakes, and rodents. The phylogenetic influence on diet preferences is discussed.

scholarly journals Distribution of frogs in riparian areas of an urban forest fragment in Central Amazonia

2011 ◽  
Vol 11 (2) ◽  
pp. 63-70 ◽  
Author(s):  
Bruno Minoru Tsuji-Nishikido ◽  
Marcelo Menin
Keyword(s):  
Leaf Litter ◽  
Environmental Variables ◽  
Urban Forest ◽  
Forest Edge ◽  
Forest Fragment ◽  
Riparian Areas ◽  
Central Amazonia ◽  
Edge Distance ◽  
Frog Species ◽  
Stream Size

This study aimed to evaluate how environmental variables (width of valley, stream size, forest edge distance, and leaf-litter depth) affect the abundance and richness of species of frog species in riparian areas of an urban forest fragment in Central Amazonia. The study was conducted at the campus of the Universidade Federal do Amazonas, Manaus, Brazil, between May 2008 and April 2009, when three nocturnal and diurnal samples were taken from ten plots. A total of 17 species belonging to seven families were registered. The number of species recorded per plot varied from seven to 14. We detected a relationship between the edge distance and richness: the plots with lower richness were located near the fragment border. The variables had no significant effect on abundance of each species.

A new species of Stenomicra Coquillett (Diptera: Periscelididae) from the Brazilian Amazon and its life history

Zootaxa ◽  
2018 ◽  
Vol 4407 (4) ◽  
pp. 591
Author(s):  
ELIANE SOLAR GOMES ◽  
ROSALY ALE-ROCHA ◽  
RUTH LEILA FERREIRA KEPPLER
Keyword(s):  
Life History ◽  
New Species ◽  
Urban Forest ◽  
Brazilian Amazon ◽  
Neotropical Region ◽  
Biological Information ◽  
Forest Fragment ◽  
Male And Female ◽  
The City ◽  
A New Species

A new species of Stenomicra is described for the Neotropical Region, from phytotelmata of Araceae at an urban forest fragment in the city of Manaus, state of Amazonas, Brazil. Morphological descriptions of the immatures and the adults (male and female) are provided, together with biological information on the life cycle of the species and its “host” plant. 

Seasonality and habitat influence on bat assemblage structure in an urban Atlantic Forest remnant from Southeastern Brazil

Mammalia ◽  
2017 ◽  
Vol 81 (3) ◽  
Author(s):  
Roberto Leonan M. Novaes ◽  
Renan F. Souza ◽  
Saulo Felix ◽  
André C. Siqueira ◽  
Rafael S. Laurindo ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Capture Rate ◽  
Species Abundance ◽  
Assemblage Structure ◽  
Southeastern Brazil ◽  
Feeding Guilds ◽  
Forest Fragment ◽  
Historical Processes ◽  
Forest Remnant ◽  
Ombrophilous Forest

AbstractThe Brazilian Atlantic Forest is a severely threatened biodiversity hotspot and many remnants exist only as fragments. In order to understand how bat assemblage structure within a forest fragment surrounded by an urban matrix might respond to seasonality and different habitats, we sampled bats over 39 nights in the forest fragment of Gericinó-Mendanha Massif, Rio de Janeiro State. From February 2006 to January 2010, we captured 874 bats, belonging to 25 species and eight different feeding guilds. Frugivorous species were the most abundant, representing 83.33% of captures, and the gleaning insectivores were the least abundant (1.47%). We did not find changes in bat species composition between seasons, although capture rate was higher in the rainy season. However, we did find significant differences in species abundance between seasons. The habitat influence did not significantly differentiate the assemblages, but species richness was higher in the mature ombrophilous forest. The community composition indicates that this conservation unit is an important remaining fragment for maintaining the diversity and richness of bats, although it is possible that historical processes of environmental exploitation have already resulted in a loss of species.

scholarly journals Species richness of anthophilous butterflies of an Atlantic Forest fragment in Southeastern Brazil

Revista CERES ◽  
2012 ◽  
Vol 59 (5) ◽  
pp. 571-579 ◽  
Author(s):  
Kelen Coelho Cruz ◽  
Sileimar Maria Lelis ◽  
Mariana Aparecida Silva Godinho ◽  
Rúbia Santos Fonseca ◽  
Paulo Sérgio Fiúza Ferreira ◽  
...  
Keyword(s):  
Species Richness ◽  
Atlantic Forest ◽  
Minas Gerais ◽  
The State ◽  
Southeastern Brazil ◽  
Forest Fragment ◽  
Semideciduous Forest ◽  
Minas Gerais State ◽  
First Time

The objectives of this study were to identify anthophilous butterflies on psychophilous flowers of four Asteraceae species in an Atlantic Forest fragment in Viçosa, Minas Gerais State, Southeastern Brazil, and to determine whether there are species in common with other lepidopteran inventories of the Southeastern and Midwestern regions of Brazil. It is the first inventory of anthophilous butterflies of a semideciduous forest fragment in Zona da Mata, State of Minas Gerais. A total of 108 species were recorded, representing the fourth largest lepidopteran survey in this State. The results demonstrated that Asteraceae species may be important tools for monitoring anthophilous butterflies. The similarity with other inventories ranged from 1 to 92.55%. Fifteen species were reported for the first time in the State of Minas Gerais, and among them, Melanis alena and Thisbe irenea were observed in this study only.

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