Bird species richness across a Northern Andean city: effects of size, shape, land cover, and vegetation of urban green spaces

2021 ◽  
pp. 127243
Author(s):  
Jaime A. Garizábal-Carmona ◽  
N. Javier Mancera-Rodríguez
Keyword(s):  
Species Richness ◽  
Land Cover ◽  
Bird Species ◽  
Green Spaces ◽  
Bird Species Richness ◽  
Urban Green ◽  
Urban Green Spaces

scholarly journals Habitat patch size and tree species richness shape the bird community in urban green spaces of rapidly urbanizing region of India

2020 ◽  
Author(s):  
Monica Kaushik ◽  
Samakshi Tiwari ◽  
Kumari Manisha
Keyword(s):  
Developing Countries ◽  
Species Richness ◽  
Bird Species ◽  
Bird Community ◽  
Local Scale ◽  
Green Spaces ◽  
Bird Species Richness ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Landscape Level

AbstractRapid urbanization and associated biodiversity loss is rampant globally but especially a cause of concern for developing countries. However, numerous studies investigating the role of urban green spaces have established their key role in conserving larger suites of species in urban area. Yet our knowledge is lopsided due to lag in research in developing countries. We examined how landscape and local scale features of urban green spaces influence bird species richness, density, fine-foraging guild richness and composition during breeding and non-breeding season. This is the first study of this nature in one the Himalayan states of India. We quantified landscape level variables in the 250m buffer around 18 urban green spaces. We sampled vegetation and bird community during breeding and non-breeding season through 52 intensive sampling point spread across 18 urban green spaces. Size of the urban green space at landscape level and tree richness at the local scale emerged as important predictor variables influencing bird species richness, density and richness of imperiled insectivorous guild across seasons. Urban green spaces within education institutions and offices experiencing much less management supported higher bird richness and density whereas city parks were the most species poor. Community composition was affected more strongly by built-up cover and barren area in the matrix and also by tree species richness within urban green spaces. City planners should focus on establishing larger city parks during design stage whereas biodiversity potential of the existing urban green spaces could be enhanced by selecting native tree and shrub species to increase overall habitat complexity.

scholarly journals Assessing Impacts of Urban Form on Landscape Structure of Urban Green Spaces in China Using Landsat Images Based on Google Earth Engine

2018 ◽  
Vol 10 (10) ◽  
pp. 1569 ◽  
Author(s):  
Conghong Huang ◽  
Jun Yang ◽  
Peng Jiang
Keyword(s):  
Land Cover ◽  
Landscape Structure ◽  
Urban Form ◽  
Google Earth ◽  
Green Spaces ◽  
Road Density ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Google Earth Engine ◽  
Land Cover Maps

The structure of urban green spaces (UGS) plays an important role in determining the ecosystem services that they support. Knowledge of factors shaping landscape structure of UGS is imperative for planning and management of UGS. In this study, we assessed the influence of urban form on the structure of UGS in 262 cities in China based on remote sensing data. We produced land cover maps for 262 cities in 2015 using 6673 scenes of Landsat ETM+/OLI images based on the Google Earth Engine platform. We analyzed the impact of urban form on landscape structure of UGS in these cities using boosted regression tree analysis with the landscape and urban form metrics derived from the land cover maps as response and prediction variables, respectively. The results showed that the three urban form metrics—perimeter area ratio, road density, and compound terrain complexity index—were all significantly correlated with selected landscape metrics of UGS. Cities with high road density had less UGS area and the UGS in those cities was more fragmented. Cities with complex built-up boundaries tended to have more fragmented UGS. Cities with high terrain complexity had more UGS but the UGS were more fragmented. Our results for the first time revealed the importance of urban form on shaping landscape structure of UGS in 262 cities at a national scale.

Island biogeography of insect conservation in urban green spaces

2017 ◽  
Vol 45 (1) ◽  
pp. 1-10 ◽  
Author(s):  
SIMONE FATTORINI ◽  
CRISTINA MANTONI ◽  
LIVIA DE SIMONI ◽  
DIANA M.P. GALASSI
Keyword(s):  
Species Richness ◽  
Island Biogeography ◽  
Extinction Risk ◽  
Strong Support ◽  
Insect Conservation ◽  
Green Spaces ◽  
Insect Species ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Insect Species Richness

SUMMARYBecause of their isolation, biotic communities of urban green spaces are expected to be similar to those of oceanic islands. This should be particularly true for insects, which represent an important component of urban faunas. The equilibrium theory of island biogeography (ETIB) allows for the formulation of some hypotheses regarding the influence of the geographical characteristics of green spaces on insect species richness and extinction risk. Based on island biogeography principles, we present eight predictions on how green space characteristics should influence insect species richness and loss. We analysed the current literature in order to determine which predictions were supported and which were not. We found that many studies gave outcomes that support ETIB predictions about the effects of area and isolation of green spaces; we found no strong support for predictions about shape and extent of native habitat in the literature that we reviewed. Most of the available studies dealt with patterns in species richness, whereas insect species loss has been rarely investigated. Future developments in the application of island biogeography principles to urban insect conservation should address temporal trends in species persistence and the analysis of species co-occurrence and nestedness.

scholarly journals Area is the primary correlate of annual and seasonal patterns of avian species richness in urban green spaces

2020 ◽  
Vol 203 ◽  
pp. 103892 ◽  
Author(s):  
Frank A. La Sorte ◽  
Myla F.J. Aronson ◽  
Christopher A. Lepczyk ◽  
Kyle G. Horton
Keyword(s):  
Species Richness ◽  
Avian Species ◽  
Green Spaces ◽  
Seasonal Patterns ◽  
Urban Green ◽  
Urban Green Spaces

scholarly journals Perceived species-richness in urban green spaces: Cues, accuracy and well-being impacts

2018 ◽  
Vol 172 ◽  
pp. 1-10 ◽  
Author(s):  
Georgina E Southon ◽  
Anna Jorgensen ◽  
Nigel Dunnett ◽  
Helen Hoyle ◽  
Karl L Evans
Keyword(s):  
Species Richness ◽  
Well Being ◽  
Green Spaces ◽  
Urban Green ◽  
Urban Green Spaces

scholarly journals Urban Green Spaces, Greenness Exposure and Species Richness in Residential Environments and Relations with Physical Activity and BMI in Portuguese Adolescents

2021 ◽  
Vol 18 (12) ◽  
pp. 6588
Author(s):  
Juliana Melo ◽  
Ana Isabel Ribeiro ◽  
Susana Aznar ◽  
Andreia Pizarro ◽  
Maria Paula Santos
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Species Richness ◽  
Body Mass ◽  
Vegetation Index ◽  
Green Spaces ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Residential Environments ◽  
Address Data

Environmental factors play an important role in obesity-related behaviors. Evidence indicates significant associations between weight and urban green spaces in adults, but it is not clear whether this relationship applies to adolescents. Therefore, our aim was to determine the associations between urban green spaces, greenness exposure and species richness in residential environments with physical activity and body mass index. Sixty-two adolescents between 12 and 18 years of age answered a self-administered questionnaire, providing information on height, weight, age, sex and home address. Data on socioeconomic deprivation were obtained from the European Index of Deprivation for Small Portuguese Areas. Physical activity levels were assessed using accelerometers. Urban green space counts and the normalized difference vegetation index values were measured using buffers along the roads with distances of 300, 500, 1000 and 1500 m from each participant’s residence. To quantify the species richness, the species richness index was used. Linear regression models were fitted to analyze whether urban green spaces, exposure to green spaces and species richness counts for each distance were associated with physical activity and self-reported body mass index. We did not find significant associations between the independent variables and the probability of overweight or obesity. The relationship between environmental variables, adolescents’ physical activity and body weight seems to be complex and further studies may contribute to better understanding of the topic.

scholarly journals Quantification and monetary valuation of urban ecosystem services in Munich, Germany

2015 ◽  
Vol 59 (3) ◽  
Author(s):  
Tim Aevermann ◽  
Jürgen Schmude
Keyword(s):  
Ecosystem Services ◽  
Land Cover ◽  
Urban Areas ◽  
Green Space ◽  
Local Population ◽  
Urban Green Space ◽  
Green Spaces ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Runoff Reduction

AbstractUrban green spaces provide ecosystem services that can be used by the local population. The valuation of these ecosystem services in urban areas gives information for stakeholders and decision-makers to improve urban planning processes. In addition, this information can be used to provide a better understanding of how urban green spaces should be managed. In this study, we quantify and monetize four ecosystem services (carbon sequestration and storage, air pollution removal, runoff reduction, groundwater recharge) provided by the urban green space of Schlosspark Nymphenburg in Munich, Germany. We classify four different land cover types (tree, grass/herbaceous, water, impervious) to calculate different amounts of ecosystem services according to the land cover type. In addition, we quantify the maintenance costs which this urban green space causes to the city of Munich. The interpretation, communication and risks of valuations studies are discussed.

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