Landscape analysis in a municipality in the arc of deforestation of the Brazilian Amazon rainforest

2021 ◽  
Vol 173 ◽  
pp. 106417
Author(s):  
Sally Deborah Pereira da Silva ◽  
Suane Bastos dos Santos ◽  
Paulo Cezar Gomes Pereira ◽  
Marcio Roberto da Silva Melo ◽  
Fernando Coelho Eugenio
Author(s):  
Matheus Mickael Mota Soares ◽  
Luana Machado Barros ◽  
Daniela Aparecida Savariz Bôlla ◽  
Marlus Queiroz Almeida ◽  
Diego da Costa Souza ◽  
...  

Abstract Two individuals of the jaguar, Panthera onca (L.), were captured near the municipality of Presidente Figueiredo, Brazilian Amazon, during the years of 2017 and 2018. The jaguars presented furuncular myiasis caused by the human botfly Dermatobia hominis (L.) on the rear thighs and tail. This is the first record of infestation of D. hominis in P. onca in the Amazon region.


Semantic Web ◽  
2014 ◽  
Vol 5 (2) ◽  
pp. 151-155 ◽  
Author(s):  
Tomi Kauppinen ◽  
Giovana Mira de Espindola ◽  
Jim Jones ◽  
Alber Sánchez ◽  
Benedikt Gräler ◽  
...  

2015 ◽  
Vol 370 (1681) ◽  
pp. 20140273 ◽  
Author(s):  
Alexander Pfaff ◽  
Juan Robalino ◽  
Catalina Sandoval ◽  
Diego Herrera

The leading policy to conserve forest is protected areas (PAs). Yet, PAs are not a single tool: land users and uses vary by PA type; and public PA strategies vary in the extent of each type and in the determinants of impact for each type, i.e. siting and internal deforestation. Further, across regions and time, strategies respond to pressures (deforestation and political). We estimate deforestation impacts of PA types for a critical frontier, the Brazilian Amazon. We separate regions and time periods that differ in their deforestation and political pressures and document considerable variation in PA strategies across regions, time periods and types. The siting of PAs varies across regions. For example, all else being equal, PAs in the arc of deforestation are relatively far from non-forest, while in other states they are relatively near. Internal deforestation varies across time periods, e.g. it is more similar across the PA types for PAs after 2000. By contrast, after 2000, PA extent is less similar across PA types with little non-indigenous area created inside the arc. PA strategies generate a range of impacts for PA types—always far higher within the arc—but not a consistent ranking of PA types by impact.


Mycotaxon ◽  
2009 ◽  
Vol 110 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Larissa Trierveiler-Pereira ◽  
Allyne Christina Gomes-Silva ◽  
Iuri Goulart Baseia

2017 ◽  
Vol 47 (3) ◽  
pp. 237-246 ◽  
Author(s):  
Genimar Rebouças JULIÃO ◽  
Emmanuel Duarte ALMADA ◽  
Flávia Regina Capellotto COSTA ◽  
Marco Antônio Alves CARNEIRO ◽  
G. Wilson FERNANDES

ABSTRACT Topographic gradients in terra firme forests are associated with pronounced changes in soil texture, soil nutrients and distance to the water-table, thereby creating different hydric and nutritional conditions for plants and their associated herbivore community. The aim of this study was to investigate galling species and host plant richness and gall species composition across topographic habitats differing in nutrient and water stress in the Brazilian Amazon rainforest. Nineteen 250 x 3 m plots were randomly sampled in the valley, slope, plateau-slope transition, and plateau habitats in terra firme forests. All individual dicotyledonous plants 1 to 3 meters high were examined for the presence of insect galls. Galling species and host plant richness differed significantly among the studied habitats and were higher in slope habitats (drier habitats), as expected. More humid areas (valleys) showed the lowest richness of galling species, and a lower number of understory host plants. PERMANOVA and PERMDISP results demonstrated that the gall species composition differed significantly in the valley, slope, plateau-slope transition, and plateau areas. However, these structural differences in species composition could be due to unequal dispersion of variability among forest habitats. Our data suggested that spatial heterogeneity, such as a mosaic of local water status and nutrient availability resulting from the topographic conditions, can affect host plants and their associated galling insects.


Sociobiology ◽  
2019 ◽  
Vol 66 (1) ◽  
pp. 179 ◽  
Author(s):  
Alexandre Somavilla ◽  
Raimundo Nonato Martins de Moraes Junior ◽  
José Albertino Rafael

Most studies about the insect community in rainforests only focus on the forest understory, and even though the rainforest canopy is one of the most fascinating and diverse environments, it remains poorly explored. Therefore, we analyzed the difference between the social wasp composition in these two strata at the ZF-2 Station in the Brazilian Amazon Rainforest, using flight interception traps (Malaise model Gressi and Gressi), in the rainforest understory and canopy. We collected ninety-two species belonging to 18 genera; Polybia was the richest genera (22 species), followed by Mischocyttarus (14) and Agelaia (13). Forty-four species were exclusively collected in the understory, twenty exclusively collected in the canopy, and twenty-eight in both strata. The understory was distinctly more diverse and more abundant than the canopy, while some rare or poorly collected species were only found in the canopy. We found a strong relationship between the species composition at the ZF-2 Station and the Ducke Reserve. Therefore, we suggest using traps in canopy in the Amazon biome as an effective method for collecting a higher diversity of social wasps.


Zootaxa ◽  
2018 ◽  
Vol 4483 (2) ◽  
pp. 271
Author(s):  
JOSÉ MARCOS REZENDE ◽  
ANTONIO CARLOS LOFEGO ◽  
CONNOR GULBRONSON ◽  
GARY BAUCHAN ◽  
RONALD OCHOA

The genus Ceratotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae) is reviewed here, with the addition of an updated key for the genus. Ceratotarsonemus amazonicus, sp. nov., found in the Brazilian Amazon rainforest, is described. Phase contrast (PC), differential interference contrast (DIC), low temperature scanning electron microscopy (LT-SEM) and confocal microscopy (CLSM) micrographs are provided. Biological and ecological aspects about the role of this species in its ecosystem are also discussed. 


Author(s):  
Eber Coelho Paraguassu ◽  
Anneli Mercedes Celis de Cardenas ◽  
Rosemary Ferreira de Andrade ◽  
Carlo La Vecchia ◽  
Saad B. Omer ◽  
...  

The state of Amapá is located in the extreme north of Brazil, within the Amazon rainforest and is crossed by the Equator. It has a hot and humid climate with rains that last 8 months a year and 4 months of unrelenting sun that melts rubber from car seals, fries eggs on the floor and even cooks a whole egg tub, in case you forget in a car exposed to the sun . It was believed that with this potent solar incidence, the Sars-COV 2 virus would not have so much impact in this region, a terrible mistake! Today Amapá has the highest incidence of Covid-19 in the whole of Brazil, with a maid of 600 cases per hundred thousand inhabitants and in the Amazon it is the 3rd in deaths and loses in this item only to the state of Amazonas and Pará.


Author(s):  
Luiz E. Christovam ◽  
Maria L. B. T. Galo ◽  
Milton H. Shimabukuro ◽  
Franciele M. Tolentino ◽  
Leandro F. Coladello

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