نتایج جستجو برای: urban landscape

تعداد نتایج: 234687  

Journal: :Ecological applications : a publication of the Ecological Society of America 2017
Stacy M Philpott Peter Bichier

In agroecosystems, local and landscape features, as well as natural enemy abundance and richness, are significant predictors of predation services that may result in biological control of pests. Despite the increasing importance of urban gardening for provisioning of food to urban populations, most urban gardeners suffer from high pest problems, and have little knowledge about how to manage the...

2008
Wei Ji

This study intends to identify both general trends and subtle patterns of urban land changes of the past three decades in metropolitan Kansas City area. Landsat images were used to generate time series of land cover data from the early 1970s to the early 2000s. Based on remotely sensed land cover data, landscape metrics were calculated. Both the remotely sensed data and landscape metrics were u...

2016
Paul R. Lintott Kate Barlow Nils Bunnefeld Philip Briggs Clara Gajas Roig Kirsty J. Park

Urbanization is a key global driver in the modification of land use and has been linked to population declines even in widespread and relatively common species. Cities comprise a complex assortment of habitat types yet we know relatively little about the effects of their composition and spatial configuration on species distribution. Although many bat species exploit human resources, the majorit...

2013
Jianguo Wu Chunyang He Ganlin Huang Deyong Yu

Cities are home to more than half of the world population. Cities have been the centers of economic and social developments, as well as sources of many major environmental problems. Cities are created and maintained by the most intense form of human-nature interactions. Cities are spatially extended, complex adaptive systems—which we call landscapes. The future of humanity will increasingly rel...

Journal: :journal of ornamental plants 2015
navid vahdati ali tehranifar seyed hossein neamati yahya selahvarzi

trifolium spp. are native plants in iran exhibiting good ground cover po-tential. salinity is a major environmental stress and today, 20% of the world cultivated areas and nearly half of all irrigated lands are affected by salinity. the main aim of this research was to study morphological and physiological adaptations of these native species under different salinity levels for urban landscape u...

Journal: :Ecological applications : a publication of the Ecological Society of America 2008
Finn C Pillsbury James R Miller

Urbanization has been cited as an important factor in worldwide amphibian declines, and although recent work has illustrated the important influence of broad-scale ecological patterns and processes on amphibian populations, little is known about the factors structuring amphibian communities in urban landscapes. We therefore examined amphibian community responses to wetland habitat availability ...

2009
Ebenezer Howard

Urban planning, in particular on protected landscape areas, demands an increasing role of public participation within the frame of the efficiency of sustainable planning process. The development of urban planning actions in Protected Landscape areas, as Sintra-Cascais Natural Park, should perform a methodological process that is structured over distinct sequential stages, providing the developm...

2009
Akinori Morimoto

In recent years, motorization has accelerated the expansion of urban sprawl and the decline of central city areas in many cities in Japan. In order to reverse this trend, the Government of Japan enacted the Downtown Revitalization Act in June 2007. To revitalize the city centers, it is very important to increase the attractiveness of urban space as a whole, rather than only introducing attracti...

Journal: :Bulletin of entomological research 2017
M Plascencia S M Philpott

In urban landscapes, gardens provide refuges for bee diversity, but conservation potential may depend on local and landscape features. Foraging and population persistence of bee species, as well as overall pollinator community structure, may be supported by the abundance, richness, and spatial distribution of floral resources. Floral resources strongly differ in urban gardens. Using hand nettin...

2007
H. S. SUDHIRA T. V. RAMACHANDRA

Urban sprawl refers to the outgrowth of urban areas caused by uncontrolled, uncoordinated and unplanned growth. This outgrowth seen along the periphery of cities, along highways, and along roads connecting a city, lacks basic amenities like sanitation, treated water supply, primary health centre, etc. as planners were unable to visualise such growth during planning, policy and decision-making. ...

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