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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
|
vol. 15
37-48
EN
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 diversity and 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.
2
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Vertical stratification of birds in Dense Ombrophilus Forest remmant in Brazil

100%
Dario F. R.
World News of Natural Sciences
|
2022
|
vol. 42
56-75
EN
The composition of life in the forest is altered as changes occur in vegetation that directly interferes with the population structure of the avifauna. The integrity and complexity of a forest are the factors that influence the composition, abundance, and probably the functions of the assembly of different bird species. In that way, in forest environments, where a vertical stratification of resources occurs, these species are distributed occupying a high diversity of trophic niches. This study realized in forest fragments of Atlantic Forest in a metropolitan area of São Paulo, Brazil, was to analyze the bird's distribution in trophic guilds, according to vertical stratification to different ecological successional stages of vegetation. The forest fragment in an advanced stage of secondary regeneration showed the highest number of bird species and was better distributed in trophic guilds and in the vertical structure of the forest, which indicates a better quality status in comparison to the other forest fragments in an initial and medium stage of ecological succession.
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Genetic insights into ecological succession from oak- (Quercus robur L.) to beech-(Fagus sylvatica L.) dominated forest stands

75%
Sandurska E., Ulaszewski B., Burczyk J.
Acta Biologica Cracoviensia s. Botanica
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2017
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vol. 59
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issue 1
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