scholarly journals Bird breeding biology and homogenization process in an urban green area at Atlantic rainforest of Southeastern Brazil

2019 ◽  
Vol 14 (1) ◽  
pp. 83-98 ◽  
Author(s):  
Gabriel Silva Santos ◽  
Isael Colonna Ribeiro ◽  
Luana D'Avila Centoducatte ◽  
Sérgio Lucena Mendes

Urbanization is a major cause of biotic homogenization, once it modifies species habitat and creates new environments in which only a few species are able to survive. However, many authors propose that planned green areas within the bounds of urban centers work real islands, providing shelter for several animal species. In this study, we verified the reproductive pattern of a community of birds within an urban green area in southeastern Brazil. Also, we compared the composition of breeding sites and reproductive activities of birds in different environments available and provided insights about how homogenization process affects birds in the study site. We recorded 359 reproductive sites of 36 species. Our data represents 48% of bird species recorded by previous reports at this study site. Out of the total reproductive records, 68.5% were found in wooded areas, even though this land cover class represents only 26.8% of the analyzed landscape. The proportion and the uniqueness of species at this study site show its importance to maintenance of the local diversity of birds. Our results indicate that a local bird diversity homogenization is in process and they provide subsidies for better management practices of green areas within urban centers.

Author(s):  
Matheus Maramaldo Andrade Silva ◽  
Maria do Carmo Lima Bezerra

The Urban Green Areas System (UGAS) performs relevant functions for the quality of life by making cities healthier, which has become even more necessary in the current period of pandemic. However, even with these benefits, the practice of urban management indicates difficulties not only in the implementation, but also in the maintenance of the UGAS. One of the aspects that may explain the challenge of implementing and maintaining green areas in cities is the absence of regulatory instruments and financial incentives that support this system. In this line, in order to contribute to this discussion, one of the instruments that proved to be effective in environmental management will be studied, in this case for the creation and implementation of Conservation Units: the “ICMS Ecológico”. This article will study the characteristics of the UGAS associated with ecological and urban functions; the logic of adopting the “ICMS Ecológico” and will seek to define criteria that can be used for the implementation of a UGAS that prioritizes ecosystem thinking associated with the function of urban health. We started with the discussion about the mechanisms for adopting the “ICMS Ecológico” and followed the analysis of the standards established in the states for its application. As a result, it was found that there are similarities that can be applied to an implementation in the urban green area systems, which allowed the recommendation of criteria that can be used as a reference for the application of the “ICMS Ecológico” to support the UGAS and the promotion of healthier cities.


2020 ◽  
Vol 12 (18) ◽  
pp. 7647 ◽  
Author(s):  
Sin-Yee Yoo ◽  
Taehee Kim ◽  
Suhan Ham ◽  
Sumin Choi ◽  
Chan-Ryul Park

The utilization of urban green areas has increased, but it is unclear whether urban green areas can decrease the concentration of particulate matter at an industrial complex city in Korea. We measured the extent of particulate matter (PM) reduction at a buffer green area in the Sihwa Industrial Complex. PM was measured at the industrial complex, the urban green area, and a nearby residential area from April to October 2019. PM reduction rates were highest at the urban green area in August and October, which is related to increased atmospheric mixing height and the active west wind blowing from the industrial complex to the residential area. Reduction rates of PM10 and PM2.5 at the urban green area showed the lowest values, namely 14.4% and 25.3%, respectively. The air temperature, wind speed, and humidity could affect the PM reduction rate by influencing the movement and dispersion of PM at the micro-spatiotemporal scale. These results indicated that PM concentration could be reduced by the structural change of a forest layer at a micro scale in urban green areas.


2017 ◽  
Vol 38 (6) ◽  
pp. 1058-1071 ◽  
Author(s):  
Adriane Suzin ◽  
Janaína P. Back ◽  
Michel V. Garey ◽  
Lucas M. Aguiar

2021 ◽  
Vol 40 (1) ◽  
pp. 80-90
Author(s):  
Mária Bihuňová ◽  
Ján Supuka ◽  
Attila Tóth ◽  
Karol Šinka ◽  
Gabriel Kuczman

Abstract The environment of a city is influenced by global and local climate changes, pollution load from transport, industry and local heat sources. Green spaces as part of the urban green infrastructure fulfil multiple ecosystem services and improve the environmental and residential quality of a city. The level of positive effects of green spaces depends on their area, distribution within the city and the proportion of trees. The aim of the paper was to evaluate land cover structure in a selected segment of the housing estate Klokočina in Nitra, Slovakia. The evaluation focused on the share of biologically active and inactive surfaces, as well as the parameters of woody plant structure in green spaces. Green areas account for 58.70%, while built-up areas, parking lots and roads cover in total 41.30%. Biologically inactive anthropogenic horizontal and of building envelope areas represent 67.30%. Biologically active green areas represent 32.70%. The share of areas with tree crown overlap on horizontal areas is 20.82%, other areas are paved surfaces or grassland. We calculated the indices of the quality of green spaces from the individual categories of areas: proportional green area index (PGAI), effective green area index (EGAI) and tree shade index (TSI). The tree species composition consists of 36 deciduous and 11 coniferous tree species, and 20 shrub species. We evaluated the biometric traits of trees as the tree height, crown width, stem girth and tree vitality class (TVC). The correlations between tree traits were statistically tested with a significant result. In the group of biologically active areas of greenery, we propose to increase the proportion of trees, to establish more natural lawns and xerophyte flower beds. In the category of inactive areas, we propose the reconstruction of parking lots to grass paved surfaces.


2021 ◽  
Vol 258 ◽  
pp. 04012
Author(s):  
Ilhomjon Aslanov ◽  
Uzbekkhon Mukhtorov ◽  
Rahimjon Mahsudov ◽  
Umida Makhmudova ◽  
Saida Alimova ◽  
...  

Land use and land cover (LULC) change are one of the most important signals of regional environmental monitoring and study. Recently, the pull of capital cities has snowballed, an increasing number of people moving to the cities, especially in developing countries. Consequently, as more people arrive at cities, the more pressure will be on land. Land price getting high and constructions try using open green areas. A wide variety of green areas of different sizes will be solve many urban diseases and ecological problems at the same time improve the quality and life of urban residents, as urban green area provides various ecosystem services. The green area includes parks, woodlands, nature reserves and bare lands. With the population increase and expansion of cities, an increasing amount of open area, woodland and bare land has been converted into construction land, buildings due to the increasing demands and residential land. For the accuracy assessment, we applied an automatically supervised classification using the software QGIS 3.18. The reference values were based on ground truth data and visual interpretation.


2019 ◽  
Vol 34 (6) ◽  
pp. 1231-1246 ◽  
Author(s):  
Corey T. Callaghan ◽  
Gilad Bino ◽  
Richard E. Major ◽  
John M. Martin ◽  
Mitchell B. Lyons ◽  
...  

2021 ◽  
Vol 35 (3) ◽  
pp. 256-264
Author(s):  
Kyeong-Tae Kim ◽  
◽  
Hyun-Jung Lee ◽  
Whee-Moon Kim ◽  
Seoung-Yeal Kim ◽  
...  

2010 ◽  
Vol 70 (3) ◽  
pp. 537-550 ◽  
Author(s):  
M. Telles ◽  
MM. Dias

The Cerrado domain is a mosaic of vegetation types at the local scale, and this environmental heterogeneity leads to high regional bird diversity. Therefore, we aimed to survey quantitative and qualitatively the bird fauna of two fragments of Cerrado and to compare them with an adjacent protected area (Estação Ecológica de Itirapina), in order to assess the heterogeneity of bird diversity in the region. The present study was conducted during 12 months from October 2006 to September 2007 in the municipality of Itirapina, Southeastern Brazil. Altogether we recorded 210 bird species. Fifty-six of them had never been detected in Estação Ecológica de Itirapina, and eleven species are new records for the whole Itirapina region. The list also includes six species that are endangered in Sao Paulo State and five endemic species of the Cerrado domain. Most species were recorded in less than 50% of the visits and exhibited low relative abundance. Primarily insectivorous species were the most common, followed by omnivores. Frugivorous birds were poorly represented. Carnivores were more abundant than usually observed in fragments. The similarity among fragments was higher than between fragments and the protected area. Considering the vegetation heterogeneity in the Cerrado domain, our results reinforce the importance of conserving fragments in order to sample this diversity.


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