scholarly journals Forest Fragments Surrounded by Sugar Cane Are More Inhospitable to Terrestrial Amphibian Abundance Than Fragments Surrounded by Pasture

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Paula Eveline Ribeiro D’Anunciação ◽  
Marcela Fernandes Vilela Silva ◽  
Lucas Ferrante ◽  
Diego Santana Assis ◽  
Thamires Casagrande ◽  
...  
Keyword(s):  
Land Use ◽  
Sugar Cane ◽  
Abundant Species ◽  
Southeastern Brazil ◽  
Forest Fragments ◽  
Pitfall Traps ◽  
Matrix Type ◽  
Surrounding Matrix ◽  
Type Of Land Use ◽  
Semideciduous Seasonal Forest

In recent years, there has been increasing interest in matrix-type influence on forest fragments. Terrestrial amphibians are good bioindicators for this kind of research because of low vagility and high philopatry. This study compared richness, abundance, and species composition of terrestrial amphibians through pitfall traps in two sets of semideciduous seasonal forest fragments in southeastern Brazil, according to the predominant surrounding matrix (sugar cane and pasture). There were no differences in richness, but fragments surrounded by sugar cane had the lowest abundance of amphibians, whereas fragments surrounded by pastures had greater abundance. The most abundant species,Rhinella ornata, showed no biometric differences between fragment groups but like many other amphibians sampled showed very low numbers of individuals in fragments dominated by sugar cane fields. Our data indicate that the sugar cane matrix negatively influences the community of amphibians present in fragments surrounded by this type of land use.

scholarly journals Anurofauna of an Atlantic Rainforest fragment and its surroundings in Northern Rio de Janeiro State, Brazil

2010 ◽  
Vol 70 (3 suppl) ◽  
pp. 871-877 ◽  
Author(s):  
M Almeida-Gomes ◽  
M Almeida-Santos ◽  
P Goyannes-Araújo ◽  
VNT Borges-Júnior ◽  
D Vrcibradic ◽  
...  
Keyword(s):  
Rio De Janeiro ◽  
Abundant Species ◽  
The State ◽  
Forest Fragments ◽  
Forest Fragment ◽  
The North ◽  
Surrounding Matrix ◽  
Plot Sampling ◽  
Northern Portion ◽  
Janeiro State

We carried out a study on the anurofaunal community from an Atlantic Forest fragment (Monte Verde mountains) and the surrounding area in Cambuci municipality, Rio de Janeiro State, Brazil, which constitutes one of the largest fragments remaining in the largely deforested landscape of the northern portion of the State. We combined three sampling methods: plot sampling, transects and pit-fall traps. We recorded twenty species of amphibians, of which only eleven were found within the forest fragment (and five of these also occurred in the surrounding matrix). Two of the species recorded in the present study (Crossodactylus sp. and Ischnocnema cf. parva) may represent undescribed taxa. Our records expand the distribution range of one species (Scinax trapicheiroi) to the north, and fill a geographic distribution gap for another one (Ischnocnema oea). The estimated overall density of frogs living in the leaf litter of the fragment (based on results of plot sampling) was 3.1 individuals/100 m², with Haddadus binotatus being the most abundant species (2.4 individuals/100 m²). Comparisons of our data with those of other studies suggest that anuran communities in forest fragments ca. 1,000 ha or smaller may be severely limited in their richness, and often include a large proportion of species tolerant to open areas, such as many hylids. Our results show the importance of increasing knowledge about the anurofaunal community of the northern portion of the State of Rio de Janeiro and preserve the forest remnants that still exist in the region.

scholarly journals Diversity of Social Wasps on Semideciduous Seasonal Forest Fragments with Different Surrounding Matrix in Brazil

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Getulio Minoru Tanaka Junior ◽  
Fernando Barbosa Noll
Keyword(s):  
New Record ◽  
Wiener Index ◽  
Social Wasps ◽  
The State ◽  
Forest Fragments ◽  
Paulo State ◽  
Surrounding Matrix ◽  
Semideciduous Seasonal Forest ◽  
Common Genus ◽  
Index Of Diversity

We surveyed social wasps (Polistinae) present in forest fragments of northwest of São Paulo state with different surroundings composed of a matrix of citrus crops and sugarcane in the expectation that the former matrix would be more diverse than the latter. We collected specimens actively using attractive liquids. We obtained 20 species in Magda, 13 in Bebedouro, 13 in Matão, and 19 in Barretos. The most common genus wasAgelaiain all of the areas. The greatest Shannon-Wiener index of diversity was obtained in Magda (H′=2.12). Species such asBrachygastra moebiana,Metapolybia docilis,Mischocyttarus ignotus,M. paulistanusandM. consimilishad not been recorded on recent surveys in the state. FurthermoreM. consimilisis a new record for the state. We concluded that, with our data, a relation between the occurrence of social wasps and the surrounding matrix was not detected.

scholarly journals Land-use effect on hydropedology in a mountainous region of Southeastern Brazil

2017 ◽  
Vol 41 (4) ◽  
pp. 413-427 ◽  
Author(s):  
Leandro Campos Pinto ◽  
Carlos Rogério de Mello ◽  
Lloyd Darrell Norton ◽  
Sérgio Henrique Godinho Silva ◽  
Luís Renato Silva Taveira ◽  
...  
Keyword(s):  
Land Use ◽  
Atlantic Forest ◽  
Land Use Changes ◽  
Spatial Prediction ◽  
Water Infiltration ◽  
Southeastern Brazil ◽  
Native Forest ◽  
Forest Fragments ◽  
Montane Tropical Forest ◽  
Southeastern Region

ABSTRACT In Brazil, the Mantiqueira Range, southeastern region, shelters the last remnants of the ecologically important Upper Montane Tropical Forest. since extensive exploration that has been taking place in this biome for decades, the influence of land-use changes on hydropedology in these areas must be investigated once major land-use changes have been observed. This study aims to evaluate the land-use influence on soil drainable porosity (SDP) in a headwater watershed located in the Mantiqueira Range region, and to validate the proposed methods based on micromorphological and hydrological indicators. The native vegetation of the study area is Atlantic forest that occupies 62% of the area, and the remaining 38% has been used for pasture. Thirty nine combinations of environmental variables were tested, each one generating a map for predicting SDP. The performance of the spatial prediction of SDP was assessed using 20% of the data from the total number of samples collected throughout the watershed. The least values of SDP are due to the process of removal of native forest and replacement by pasture. Areas with high to moderate SDP are associated with native forest fragments demonstrating the effects of the Atlantic Forest on the water infiltration and groundwater recharge processes, given by the greater contribution of baseflow in a forested catchment located within the studied watershed. The analysis of soil micromorphological images provided useful supporting information on the soil porosity system and along with hydrological properties of the watershed helped understand the SDP behavior on subsurface and groundwater storage capacity.

scholarly journals Diversity and seasonality of Scarabaeinae (Coleoptera: Scarabaeidae) in forest fragments in Santa Maria, Rio Grande do Sul, Brazil

2013 ◽  
Vol 85 (2) ◽  
pp. 679-697 ◽  
Author(s):  
PEDRO G. DA SILVA ◽  
FERNANDO Z. VAZ-DE-MELLO ◽  
ROCCO A. DI MARE
Keyword(s):  
Air Temperature ◽  
Vegetation Structure ◽  
Rio Grande ◽  
Abundant Species ◽  
Forest Fragments ◽  
Pitfall Traps ◽  
Rio Grande Do Sul ◽  
Qualitative And Quantitative ◽  
Santa Maria ◽  
Disturbance Of Vegetation

Scarabaeinae specimens were collected with the use of pitfall traps baited with human excrement, rotten meat and rotting banana, between May 2009 and April 2010, in three forest fragments in Santa Maria, Rio Grande do Sul, Brazil: ‘Morro do Elefante’ (MOEL), ‘Morro do Cerrito’ (MOCE) and ‘Campus da Universidade Federal de Santa Maria’ (UFSM). A total of 19,699 individuals belonging to 33 species were collected. Canthidium aff. trinodosum Boheman, 1858, Canthon latipes Blanchard, 1845, Dichotomius assifer (Eschscholtz 1822), Eurysternus caribaeus (Herbst 1789), Canthidium sp. and Canthon lividus Blanchard, 1845, were the most abundant species. MOEL showed the greatest richness, MOCE the greatest abundance, while UFSM showed the lowest values of richness and abundance. The greatest similarity (qualitative and quantitative) was found between MOEL and MOCE, while the lowest occurred between MOCE and UFSM. Only 51% of the species were common to all three fragments. The richness and abundance of Scarabaeinae were positively correlated with the air temperature. The richness of the fragment decreased according to the smaller size and the greater degree of disturbance of vegetation structure.

scholarly journals Crustacea, Isopoda, Oniscidea Latreille, 1802: new continent record and distribution extension in Brazil

Check List ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 217 ◽  
Author(s):  
Mariana Juventina Magrini ◽  
Paula Beatriz Araujo ◽  
Marcio Uehara-Prado
Keyword(s):  
Rio Grande ◽  
Sao Paulo ◽  
The State ◽  
Southeastern Brazil ◽  
Pitfall Traps ◽  
São Paulo ◽  
Undescribed Species ◽  
Rio Grande Do Sul ◽  
Serra Do Mar ◽  
First Time

Terrestrial Isopods were sampled in four protected Atlantic Forest areas located in Serra do Mar, state of São Paulo, southeastern Brazil. A total of 2,217 individuals of six species (Atlantoscia sp., Benthana werneri, Pseudodiploexochus tabularis, Pudeoniscus obscurus, Styloniscus spinosus and Trichorhina sp.) were captured in pitfall traps. The exotic species S. spinosus is recorded for the first time for the Americas. Another introduced species, P. tabularis, previously recorded only from the state of Rio Grande do Sul, had its geographic distribution extended to the state of São Paulo. The most abundant isopods in this study belong to an undescribed species of Atlantoscia.

Comparing the potential reproductive phenology between restored areas and native tropical forest fragments in Southeastern Brazil

2021 ◽  
Author(s):  
Débora Cristina Rother ◽  
Igor Lopes Ferreira Sousa ◽  
Eliana Gressler ◽  
Ana Paula Liboni ◽  
Vinícius Castro Souza ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Southeastern Brazil ◽  
Reproductive Phenology ◽  
Forest Fragments

scholarly journals Checklist of lizards of the Juruti, state of Pará, Brazil

Check List ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 42 ◽  
Author(s):  
Ana Lúcia Costa Prudente ◽  
Fernanda Magalhães ◽  
Alessandro Menks ◽  
João Fabrício De Melo Sarmento
Keyword(s):  
Sampling Methods ◽  
Abundant Species ◽  
The Other ◽  
Sampling Effort ◽  
Pitfall Traps ◽  
Lizard Species ◽  
Species List ◽  
The Road ◽  
On The Road

We present the first lizard species list for the municipality of Juruti, state of Pará, Brazil. The list was drawn up as a result of data obtained from specimens deposited in the Herpetological Collection of the Museu Paraense Emílio Goeldi and from inventories conducted in 2008-2011. Sampling methods included pitfall traps with drift fences and time constrained searches. We considered the data collected by other researchers, incidental encounters and records of dead individuals on the road. We recorded 33 species, 26 genera and ten families. Norops tandai was the most abundant species. Compared with the other regions of Amazonia, the region of Juruti presented a large number of lizards. However, further studies with an increase in the sampling effort, could prove this area to be richer in lizards than that observed so far.

Bird Extinctions in Atlantic Forest Fragments of the Viçosa Region, Southeastern Brazil

2003 ◽  
Vol 17 (6) ◽  
pp. 1827-1839 ◽  
Author(s):  
RÔMULO RIBON ◽  
JOSÉ EDUARDO SIMON ◽  
GERALDO THEODORO DE MATTOS
Keyword(s):  
Atlantic Forest ◽  
Southeastern Brazil ◽  
Forest Fragments

Developing resilience to hydrologic extremes in irrigated agriculture through risk transfer mechanisms in the context of southeastern Brazil

2021 ◽  
Author(s):  
Marcos Roberto Benso ◽  
Gabriela Chiquito Gesualdo ◽  
Eduardo Mario Mendiondo ◽  
Lars Ribbe ◽  
Alexandra Nauditt
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Crop Yield ◽  
Cash Flow ◽  
Synthetic Data ◽  
Southeastern Brazil ◽  
Irrigated Agriculture ◽  
Risk Transfer ◽  
Hydrologic Extremes ◽  
Transfer Mechanisms

<p>In the last decades, we have witnessed increasing losses on crop yield due to an increase in magnitude and frequency of hydrological extremes such as droughts and floods. These hazards promote systematic and regressive impacts on the economy and human behavior. Risk transfer mechanisms are key to cope with the economic impacts of these events, therefore safeguarding income to farmers and building resilience to the overall sector. The index-based insurance establishes an index that can be monitored in real or near-real-time, which is associated with losses to a specific agent. While the manifestation of the causality hazard to exposure and exposure to damage and its mathematical representation in cash flow equations is a hard task, incorporating an objective and transparent index adds up a new challenge to this modeling framework. Moreover, past events that have been used as the main guide to evaluating expected losses given risk can no longer offer an accurate risk estimation due to environmental changes. This work aims to tackle the hydrologic extremes risk transfer modeling in irrigated agriculture to obtain optimized premium values and parameters of an insurance fund for irrigated agriculture in Southeastern Brazil. This study will be developed in the Piracicaba, Jundiaí, and Capivari river basin, also known as PCJ catchment in the states of São Paulo and Minas Gerais, Brazil. The region, with approximately 5 million inhabitants, is considered one of the most important in Brazil due to its economic development, which represents about 7% of the National Gross Domestic Product (GDP). The Hydrologic Risk Transfer Model of the Hydraulic and Sanitation department of the University of São Paulo (MTRH-SHS) will be used to obtain optimized premium values. The main index variable is streamflow fitted to extreme value theory distribution for low and high flows. To evaluate climate change and land-use change scenarios, Regional Climate Models (RCMs) and land use projections will be related to streamflow in a hierarchical Bayesian framework. Synthetic data will be then simulated according to scenarios previously defined in a Monte Carlo approach. The hazard-damage function will be obtained by total crop yield and revenue per municipality, then the relationship between the index and expected losses is determined in an empirical equation. Finally, a cash flow computation is run with synthetic data obtaining optimized premiums in a way to minimize fund storage values. We expect to provide further evidence of the feasibility of actuarially fair premium values for the agents in the sector considering global phenomena of climate change and land-use change. Results will support climate change adaptation plans and policy as well as contribute to methods for estimating risk in a changing environment.</p>

scholarly journals Richness, composition and trophic groups of an avian community in the Pernambuco Endemism Centre, Alagoas, Brazil

2014 ◽  
Vol 86 (3) ◽  
pp. 1207-1220 ◽  
Author(s):  
GUILHERME S. TOLEDO-LIMA ◽  
PHOEVE MACARIO ◽  
RACHEL M. DE LYRA-NEVES ◽  
BRUNO P. TEIXEIRA ◽  
LUIZ A.F. DE LIMA ◽  
...  
Keyword(s):  
Forest Cover ◽  
Bird Community ◽  
Northeastern Brazil ◽  
Forest Fragments ◽  
Trophic Groups ◽  
Negative Consequences ◽  
Sensitive Species ◽  
Avian Community ◽  
Breeding Sites ◽  
Surrounding Matrix

In northeastern Brazil, the reduction of the natural forest cover to a series of small, isolated fragments has had negative consequences for the local avian fauna, in particular, a loss of the more specialized species, while the populations of some generalists have tended to increase. The present study focuses on the composition and trophic groups of a bird community on a farm in the northeastern Brazilian state of Alagoas. Monthly surveys were conducted between November 2008 and October 2009, based on mist-netting and systematic observations. Overall, 112 species were recorded, of which 76 were associated with the two forest fragments surveyed, while all the others were observed exclusively in the surrounding matrix of pasture and orchards. The bird community presented a predominance of insectivorous species, followed by omnivores. However, specialized trunk-creeping and understory insectivores accounted for only around 15% of the species in this feeding category. The reduced diversity of other guilds and species with more specialized diets, and the complete absence of sensitive species such as large parrots and raptors, reflects the severe fragmentation and degradation of the local forests, which has greatly reduced the availability of dietary resources and breeding sites.

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