scholarly journals Can an exotic tree (Jackfruit, Artocarpus heterophyllus Lam.) influence the non-volant small mammals assemblage in a protected area of Atlantic Forest?

2020 ◽  
Vol 36 (5) ◽  
pp. 243-250
Author(s):  
Rayanne Gama-Matos ◽  
Átilla Colombo Ferreguetti ◽  
Giulia Mekiassen do Nascimento ◽  
Juliane Pereira-Ribeiro ◽  
Natália Vagmaker ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Protected Area ◽  
Invasive Plant ◽  
Fruit Production ◽  
Artocarpus Heterophyllus ◽  
Eastern Brazil ◽  
Exotic Tree ◽  
Exotic Invasive ◽  
Species Richness And Abundance

AbstractJackfruit (Artocarpus heterophyllus Lam.) is an exotic invasive plant species in the Brazilian Atlantic Forest that causes changes in the environment through the release of allelopathic substances and has high fruit production. We aimed to understand the potential effects of the jackfruit on the non-volant small mammal assemblage in an area protected by law, in the municipality of Cariacica – Espírito Santo, south-eastern Brazil. We sampled the small mammals assemblage using live traps in 18 sites, eight with jackfruit and 10 without. We ordinated the assemblage and tested possible differences in species richness and abundance according to the jackfruit density. We recorded 31 species of non-volant small mammals, with 13 species endemic to the Atlantic Forest. Jackfruit species can affect both positively and negatively the studied assemblage of non-volant small mammals. For species with a frugivory habit, jackfruit has a positive effect favouring these species. On the other hand, for insectivorous species, jackfruit represents an impact inhibiting the presence of these species in an area with high jackfruit density. The results presented are the first step in understanding the effect of this invasive species on a small mammals assemblage and initiating a monitoring of these species in areas affected by jackfruits. Furthermore, management of jackfruits in this protected area is required.

Exposure of small mammals to ticks and rickettsiae in Atlantic Forest patches in the metropolitan area of Recife, North-eastern Brazil

Parasitology ◽  
2012 ◽  
Vol 139 (1) ◽  
pp. 83-91 ◽  
Author(s):  
FILIPE DANTAS-TORRES ◽  
FILIPE MARTINS ALÉSSIO ◽  
DANIEL BARRETO SIQUEIRA ◽  
JEAN-FRANÇOIS MAUFFREY ◽  
MARIA FERNANDA V. MARVULO ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Rural Areas ◽  
Forest Fragments ◽  
Forest Patches ◽  
Tick Density ◽  
Eastern Brazil ◽  
High Prevalence ◽  
North Eastern ◽  
Forest Strata

SUMMARYBetween December 2007 and March 2009, small mammals were captured in 6 Atlantic Forest patches in Brazil. We assessed tick-host associations and whether they differ among forest strata, sites, seasons, and host age classes or between sexes. Moreover, we assessed the exposure of animals to Rickettsia spp. In total, 432 animals were captured and 808 ticks were found on 32·9% of them. Significant differences were found among host species, collection sites, and forest strata; microhabitat preference was a strong risk factor for tick infestation. The highest tick density rates were recorded in forest fragments settled in rural areas; 91·3% of the ticks were collected from animals trapped in these forest fragments. A high prevalence (68·8%) of antibodies to Rickettsia spp. was detected among animals. This study suggests that disturbed Atlantic Forest fragments provide an environment for ticks and small mammals, which are highly exposed to rickettsiae. It also indicates that forest patches settled in rural areas are usually associated with higher small mammal diversity as well as with higher tick density rates.

Vegetation trends in a protected area of the Brazilian Atlantic forest

2021 ◽  
Vol 162 ◽  
pp. 106180
Author(s):  
Rosane Gomes da Silva ◽  
Alexandre Rosa dos Santos ◽  
João Batista Esteves Pelúzio ◽  
Nilton César Fiedler ◽  
Ronie Silva Juvanhol ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Protected Area ◽  
Brazilian Atlantic Forest

scholarly journals Small mammal glucocorticoid concentrations vary with forest fragment size, trap type, and mammal taxa in the Interior Atlantic Forest

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sarah A. Boyle ◽  
Noé U. de la Sancha ◽  
Pastor Pérez ◽  
David Kabelik
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Acute Stress ◽  
Physiological Stress ◽  
Fragment Size ◽  
Hair Shaft ◽  
Forest Fragments ◽  
Forest Fragment ◽  
Trapping Methods ◽  
Free Ranging

AbstractSpecies that live in degraded habitats often show signs of physiological stress. Glucocorticoid hormones (e.g., corticosterone and cortisol) are often assessed as a proxy of the extent of physiological stress an animal has experienced. Our goal was to quantify glucocorticoids in free-ranging small mammals in fragments of Interior Atlantic Forest. We extracted glucocorticoids from fur samples of 106 small mammals (rodent genera Akodon and Oligoryzomys, and marsupial genera Gracilinanus and Marmosa) from six forest fragments (2–1200 ha) in the Reserva Natural Tapytá, Caazapá Department, Paraguay. To our knowledge, this is the first publication of corticosterone and cortisol levels for three of the four sampled genera (Akodon, Oligoryzomys, and Marmosa) in this forest system. We discovered three notable results. First, as predicted, glucocorticoid levels were higher in individuals living withing small forest fragments. Second, animals captured live using restraint trapping methods (Sherman traps) had higher glucocorticoid levels than those animals captured using kill traps (Victor traps), suggesting that hair glucocorticoid measures can reflect acute stress levels in addition to long-term glucocorticoid incorporation. These acute levels are likely due to urinary steroids diffusing into the hair shaft. This finding raises a concern about the use of certain trapping techniques in association with fur hormone analysis. Finally, as expected, we also detected genus-specific differences in glucocorticoid levels, as well as cortisol/corticosterone ratios.

New species of flea-toad, genus Brachycephalus (Anura: Brachycephalidae) from the Atlantic Forest of Espírito Santo, Brazil

Zootaxa ◽  
2021 ◽  
Vol 5068 (4) ◽  
pp. 517-532
Author(s):  
DIEGO ALMEIDA-SILVA ◽  
THIAGO SILVA-SOARES ◽  
MIGUEL TREFAUT RODRIGUES ◽  
VANESSA KRUTH VERDADE
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Protected Area ◽  
The State ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
The Third ◽  
Skin Smooth ◽  
Espirito Santo ◽  
A New Species

We describe a new species of dull-colored flea-toad, genus Brachycephalus, from the Atlantic Forest of Caparaó mountains in southeastern Brazil. The new species is characterized by its diminutive size, “leptodactyliform” body, brownish color with an inverted V-shaped dark mark on dorsum, skin smooth, hyperossification and dorsal shield absent, linea masculinea absent, Fingers I and IV vestigial, Toe I externally absent, Toe II reduced but functional, Toes III and IV with pointed tips, Toe V vestigial, and ventral color uniformly brown. It is a leaf litter dweller, known only from type locality in the humid forests on the eastern slopes of Parque Nacional do Caparaó mountains, a protected area in the states of Espírito Santo and Minas Gerais, southeastern Brazil. It is the third flea-toad occurring in the state of Espírito Santo recovered as sister to all other Brachycephalus distributed from the state of São Paulo northward in the Atlantic Forest.  

scholarly journals Are orchid bees at risk? First comparative survey suggests declining populations of forest-dependent species

2013 ◽  
Vol 73 (2) ◽  
pp. 367-374 ◽  
Author(s):  
A Nemésio
Keyword(s):  
Atlantic Forest ◽  
Anthropogenic Disturbances ◽  
The Other ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Disturbed Areas ◽  
Eastern Brazil ◽  
Forest Remnants ◽  
Declining Populations ◽  
Comparative Survey

The two largest Atlantic Forest remnants in the state of Espírito Santo, eastern Brazil, namely ‘Reserva Biológica de Sooretama’ (REBIO Sooretama) and ‘Reserva Natural Vale’ (RNV), were surveyed for their orchid-bee faunas. Seventeen scent baits were used to attract orchid-bee males. Three-thousand, two hundred and twenty-five males belonging to 24 species were actively collected with insect nets during 100 hours in March, April and December, 2009. In comparison with a previous study in the same area twelve years before, it is evident that the abundance of all forest-dependent orchid bees analysed declined around 50%, and it was statistically significant (P = 0.022) for Euglossa marianae Nemésio, 2011, the most sensitive to anthropogenic disturbances of all Atlantic Forest orchid bees. On the other hand, the abundance of populations of species tolerant to open or disturbed areas rose. Possible explanations are discussed.

scholarly journals The orchid-bee faunas (Hymenoptera: Apidae) of 'Parque Nacional do Monte Pascoal', 'Parque Nacional do Descobrimento' and three other Atlantic Forest remnants in southern Bahia, eastern Brazil

2013 ◽  
Vol 73 (2) ◽  
pp. 437-446 ◽  
Author(s):  
A Nemésio
Keyword(s):  
Atlantic Forest ◽  
Amazon Basin ◽  
First Record ◽  
The State ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Eastern Brazil ◽  
Forest Remnants ◽  
Southern Bahia

The orchid-bee faunas of ‘Parque Nacional do Monte Pascoal’, ‘Parque Nacional do Descobrimento’ and three other Atlantic Forest remnants ranging from 1 to 300 ha in southern Bahia, eastern Brazil, were surveyed. Baits with seventeen different scents were used to attract orchid-bee males. Four thousand seven hundred and sixty-four males belonging to 36 species were actively collected with insect nets during 300 hours from November, 2008 to November, 2009. Richness and diversity of orchid bees found in this study are the highest ever recorded in the Atlantic Forest domain. Eufriesea dentilabris (Mocsáry, 1897) and Eufriesea violacea (Blanchard, 1840) were collected at the ‘Parque Nacional do Monte Pascoal’, the first record of these species for the state of Bahia and the northernmost record for both species. Females Exaerete dentata (Linnaeus, 1758) were also collected at ‘Parque Nacional do Monte Pascoal’ and old records of Eufriesea aeneiventris (Mocsáry, 1896) in this area makes this site the richest and most diverse concerning its orchid-bee fauna in the entire Atlantic Forest and similar to areas in the Amazon Basin.

scholarly journals Re-discovering jaguar in remaining coastal Atlantic Forest in southeastern Brazil by non-invasive DNA analysis

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Andiara Silos Moraes de Castro Souza ◽  
Bruno Henrique Saranholi ◽  
Peter Gransden Crawshaw Jr. ◽  
Agustin Javier Paviolo ◽  
Lilian Elaine Rampim ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Protected Area ◽  
National Park ◽  
Dna Analysis ◽  
Southeastern Brazil ◽  
Top Predator ◽  
Resident Population ◽  
Serra Do Mar ◽  
Non Invasive ◽  
The Status

Abstract Jaguar populations have been declining in Brazil mostly due to habitat loss and fragmentation, conflict with humans, poaching and reduction of prey. This is dramatically true in the Atlantic Forest, where occurrence of this large felid is now restricted to very few remaining areas. We used a non-invasive DNA analysis to search through felid scats collected in the Santa Virginia Unit (SVU) of the Serra do Mar State Park, to test for the potential presence of jaguar there. Our results indicated at least three individuals (two females and one male) inside SVU, thus confirming at least temporary presence of this top predator in this important protected area. It is now crucial to intensify studies in that area and surroundings, to evaluate the status of these individuals and identify conservation needs to urgently improve the prospects for the establishment of a resident population, allowing it to expand to adjoining units of the Serra do Mar State Park and Serra da Bocaina National Park.

scholarly journals Southernmost records of Pachyramphus marginatus (Passeriformes: Tityridae) and first observation for Santa Catarina State, southern Brazil

Biotemas ◽  
2021 ◽  
Vol 34 (3) ◽  
pp. 1-5
Author(s):  
Fernando Bittencourt de Farias ◽  
Guilherme Willrich ◽  
Guilherme Renzo Rocha Brito
Keyword(s):  
Atlantic Forest ◽  
Adult Male ◽  
Protected Area ◽  
Distribution Range ◽  
Southern Brazil ◽  
Santa Catarina ◽  
The Creation ◽  
Northeastern Coast ◽  
Santa Catarina State ◽  
Geographically Isolated

The Black-capped Becard (Pachyramphus marginatus) has two geographically isolated subspecies, including the Atlantic Forest subspecies that is distributed from Pernambuco State to Paraná State. Here we report the first observation of the species in Santa Catarina State, southern Brazil. On 12 November 2019 an adult male of P. marginatus was observed in the municipality of São Francisco do Sul, on the northeastern coast of Santa Catarina, during an inventory for the creation of a protected area. The species was also observed on three other occasions in the same locality. These are the first known records for Santa Catarina and extend the known distribution range of this species 40 km southward. We also discuss some explanations for the records.

scholarly journals Some ornithological observations of interest from Área de Reserva para Parque Nacional San Rafael, Itapúa department, Paraguay

2021 ◽  
Vol 8 (2) ◽  
pp. 15-18
Author(s):  
Paul Smith ◽  
◽  
Marcin Sidelnik ◽  
Ismael Tirados Amez ◽  
Sergio D. Ríos ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Protected Area ◽  
New Records ◽  
Additional Species ◽  
Upper Paraná Atlantic Forest ◽  
San Rafael

at 72,849 ha the “Área de Reserva para Parque Nacional San Rafael” (departamentos itapúa and caazapá) is the second largest block of upper paraná atlantic forest remaining in eastern paraguay and widely considered the highest priority for conservation of the endemic atlantic forest avifauna in the country (cartes et al. 2008). the avifauna of the reserve has been well documented (lowen et al. 1996, madroño et al. 1997, Smith et al. 2006, esquivel et al. 2007, esquivel and peris 2011, Smith and clay 2015) with most field effort in recent years concentrated on estancia nueva gambach (pro cosara). detailed descriptions of this locality are provided by cartes (2008), esquivel and peris (2011) and Smith and clay (2015). the San rafael reserve list stands at 426 spe- cies, making it the most ornithologically diverse protected area for birds in paraguay (Smith and clay 2015). here we provide documentation for five additional species which take the park total to 431 species, including two new records for itapúa department and formal documentation of one species for paraguay that was previously known only from literature reports. additionally we provide information on three additional ob- servations of interest.

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