In this study we investigated the relationship between the sensitivity to forest fragmentation of bird species and their habitat spatial distribution. We hypothesized that a homogenous spatial distribution is associated to habitat-generalist species, which would tend to be less sensitive to forest fragmentation; in contrast, a heterogeneous spatial distribution would drive to an increase of sensitivity to forest fragmentation. We concentrated on analyses of the suboscine birds, which are known to be closely associated to microhabitats. Field data was obtained in the Parque Estadual Mata dos Godoy (236279 S, 516159 W), southern Brazilian Atlantic forest. This reserve has high Biotic Integrity levels, with a relatively high number of recorded suboscines. Forty three species of suboscines were recorded, of which 21 species were considered to have high sensitivity and 22 to have low sensitivity to forest fragmentation. There was no association between levels of sensitivity to forest fragmentation and spatial distribution of suboscines. We only found significant correlation with the group of the subcanopy suboscines at the northern portion of Parque Estadual Mata dos Godoy. Therefore, we found a weak relationship between spatial distribution (habitat specialization) and sensitivity to forest fragmentation. The fact that habitat-specialist birds tend to live at the northern portion of Godoy State Park, which has the first type of terrain in a landscape to be converted into agriculture, indicate that that region has special importance for conservation. Keywords: microhabitat, habitat-specialization, suboscine birds. MARQUES
Seasonal variation in tropical and subtropical systems can have different effects on bird species depending on the resources they use and how they use them. However, despite recent research advances, knowledge of the drivers of the presence and abundance of species in different seasons is still limited for most tropical bird species. In these poorly understood systems, examining seasonal changes in species composition from the perspective of traits related to resource use can provide insight into what resources may be driving bird movements between areas throughout the year and what types of species are more subject to seasonality. Here, we explore bird community seasonality in three forest types (dense, semi-deciduous and mixed rainforests) subjected to different climatic conditions in one of the world's biodiversity hotspots, the Atlantic Rainforest. We investigated differences between summer and winter in species richness and in the composition of resource-related species traits (diet, foraging strata and substrates) obtained from the literature. The seasonal differences (summer and winter) between forest types were explored in terms of species and trait composition. We found that the main changes that occurred in bird composition between seasons in the southern Atlantic Rainforest were related to species traits such as diet and foraging strata. In general, the proportion of invertivores was higher in winter than in summer, and in the mixed forest, the forest type exposed to the coldest winters, the proportion of frugivores was lower in winter. Furthermore, species with a more varied diet were better represented in the summer. In general, more generalist species were better represented in the forest type subjected to higher seasonal variations in rainfall. Our results revealed seasonal changes in bird community structure that are related to niche occupation and that were more strongly apparent in the forest type subjected to colder winters.
Forest fragmentation is a major cause of loss of species. We evaluated the local extinction of medium-large frugivorous bird species in six forest fragments of northern Paraná: the Parque Estadual Mata dos Godoy (PEMG), the largest and most preserved forest fragment in the region, and five other fragments.
Este artigo é uma descrição e análise da experiência do projeto de capacitação Estágio Geral Interdisciplinar de Gestão Cultural, realizado em 2019 pela Diretoria do Patrimônio Histórico e Cultural do Exército, cuja finalidade é de melhor qualificar oficiais, subtenentes e sargentos na gestão de 150 Espaços Culturais do Exército Brasileiro. Em meio às temáticas discutidas aqui estão: a apresentação do cenário institucional do EB quanto aos seus Espaços Culturais; o planejamento dos módulos de Museologia e Gestão de Espaços Culturais na modalidade à distância; e a descrição dos resultados obtidos na experiência. As práticas aqui descritas, deixam espaço para aprimoramento, seja da metodologia utilizada, seja do processo de feedback da capacitação. Podemos concluir que, compartilhar este projeto junto a universidade foi fundamental para dar corpo e credibilidade ao projeto. O sucesso do programa demonstra que é possível uma educação continuada nos conhecimentos que a gestão dos Espaços Culturais demanda. A partir da documentação legal a experiência é explicitada desde a implementação até os resultados finais de conclusão do Estágio pelos militares participantes, demonstrando a concretização dos objetivos propostos, avanços em prol da valorização e preservação do patrimônio militar do Exército Brasileiro. Palavras-chave: Educação à distância. Museologia. Gestão patrimonial. patrimônio. Exército Brasileiro.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
334 Leonard St
Brooklyn, NY 11211
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.