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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Diversity of frugivorous and omnivorous birds in different stages of ecological succession in Amazon Rainforest fragments

100%
Dario F. R.
World News of Natural Sciences
|
2017
|
tom 15
The diversity of birds is directly correlated with the structure of the forest. Any interfering with the vegetation produces direct effects on the avifauna through the increase, decrease, or alternation of two key attributes: food and shelter. Thus, the composition of life in the forest is altered as changes occur in vegetation that directly interferes with the population structure of the avifauna, be those changes natural or anthropic. This study was realized in fragments of the Amazon Rainforest, and the main objective was to analyze the behavior of frugivorous and omnivorous birds in three different stages of ecological succession. In forest environments where a vertical stratification of resources occurs, these species are distributed occupying a in a high diversity of trophic niches. The diversityand density of the frugivorous and omnivorous birds in the forest fragments in medium and advanced stage of ecological succession could be directly correlated not only with the structure of the forest, but also to the fact that these birds feed almost exclusively on abundant and easy to find food sources-shrub and tree fruit of certain vegetable species that are naturally abundant in the rainforest understory layer.
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Spatial distribution and trophic structure of bird’s communities of Atlantic Forest fragments in Brazil

100%
Dario F. R.
World News of Natural Sciences
|
2021
|
tom 35
We analyzed the differences in composition, richness, and abundance of birds in forest fragments of the Atlantic Forest in the São Paulo State, Brazil, and we demonstrated the variations in richness and abundance of birds between different trophic guilds. We used point counts to characterize the avifauna. Sampling was conducted in two seasons: summer and winter of 2020 in a total of 18 hours distributed in 54 samples. A total of 544 contacts were obtained, belonging to 144 bird species distributed among 22 orders and 45 families and categorized in 18 trophic guilds. The omnivores and insectivores birds composed most of the community, occupying the edge and different strata of the forest such as canopy and understory. For each species, we calculated the abundance index value that showed our study site had a large number of species with low index and few species with intermediate to high index compared to the pattern observed in other surveys. Our study area was characterized by high species diversity for both periods studied. The Shannon-Weaver diversity index for our study areas was 4.62. Equitability was high, 0.92, suggesting the number of species registered in our study site represented the maximum capacity the areas can shelter. Our results show that despite being a secondary and fragmented forest the study area was characterized by a diverse avian community. Although the anthropized forest environments are fragmented and isolated by degraded areas and occupied by pastures, agricultural and urban areas, they are important natural environments to maintain bird diversity.
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Traditional knowledge of the wild mammals and their ecological interactions by community indigenous Apiaka, Southern Brazilian Amazon Rainforest

100%
Dario F. R.
World News of Natural Sciences
|
2018
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tom 17
The objective of this study, undertaken in the Mato Grosso State, Southern Brazilian Amazon Rainforest, was to gain an understanding of what the Apiaká indigenous know of the mammals of natural occurrence in their territory. Open and semi-structured interviews were utilized. Twelve indigenous of both genres and different ages were interviewed. The interviewees mentioned 36 different mammalian species and they showed wide ecological knowledge regarding these animals. Moreover, oral transmission of knowledge occurs across the generations.
4
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The relationship between Bororo indigenous and the wildlife in the Brazilian Savannah

100%
Dario F. R.
World News of Natural Sciences
|
2019
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tom 24
The objective of this study was accomplishes a knowledge survey of the Bororo indigenous on the mammals of natural occurrence in their territory, Meruri village, who is located in the Mato Grosso State, Brazil, in the Savannah biome, and also the relationship of the indigenous with these wild animals. As method for collect the data were used open and semi-structured interviews. Twenty-two indigenous were interviewed, both genres and different ages. The interviewees mentioned 37 species of mammals and they showed wide ecological knowledge regarding these animals. Such relationships are complex, being evidenced a mythical interaction between the man and the elements of nature. The oral transmission of knowledge occurs across generations.
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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The relationship between Bororo indigenous and the birds in the Brazilian savannah

100%
Dario F. R.
World News of Natural Sciences
|
2020
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tom 31
6
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Diversity and trophic structure of bird’s communities in Brazilian Savanna areas of the Cuiaba River basin

63%
Dario F. R., Sandrini M. P.
World News of Natural Sciences
|
2020
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tom 29
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nr 3
7
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Diversity of birds and their ecological interactions in the Mura Indigenous Territory, Brazilian Amazon Rainforest

63%
Silva de Oliveira N. L., Dario F. R.
World News of Natural Sciences
|
2018
|
tom 20
The objective of this study was accomplishes a knowledge survey of the Mura indigenous on the birds of natural occurrence in their territory, who is located in the Amazonas State, Brazilian Amazon Rainforest. As method for collect the data were used open and semi-structured interviews. Twenty four indigenous were interviewed, with both genres and different ages. The interviewees mentioned 118 different species of birds, counting about 60% of the records, which in addition to the interviews was completed by surveying the bird by direct field observations with sighting and vocalization in different natural environments of the indigenous territory. The indigenous showed wide ecological knowledge regarding these birds. The oral transmission of knowledge occurs across generations.
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