ORCID Profile
0000-0002-2283-6752
Current Organisations
University of Houston
,
Northumbria University
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Publisher: Springer Science and Business Media LLC
Date: 20-07-2020
Publisher: The Royal Society
Date: 07-04-2014
Abstract: Urbanization contributes to the loss of the world's bio ersity and the homogenization of its biota. However, comparative studies of urban bio ersity leading to robust generalities of the status and drivers of bio ersity in cities at the global scale are lacking. Here, we compiled the largest global dataset to date of two erse taxa in cities: birds (54 cities) and plants (110 cities). We found that the majority of urban bird and plant species are native in the world's cities. Few plants and birds are cosmopolitan, the most common being Columba livia and Poa annua . The density of bird and plant species (the number of species per km 2 ) has declined substantially: only 8% of native bird and 25% of native plant species are currently present compared with estimates of non-urban density of species. The current density of species in cities and the loss in density of species was best explained by anthropogenic features (landcover, city age) rather than by non-anthropogenic factors (geography, climate, topography). As urbanization continues to expand, efforts directed towards the conservation of intact vegetation within urban landscapes could support higher concentrations of both bird and plant species. Despite declines in the density of species, cities still retain endemic native species, thus providing opportunities for regional and global bio ersity conservation, restoration and education.
Publisher: Wiley
Date: 15-03-2018
DOI: 10.1111/DDI.12738
Publisher: Routledge
Date: 11-08-2023
Publisher: Oxford University Press (OUP)
Date: 15-03-2017
Publisher: Oxford University Press (OUP)
Date: 2021
DOI: 10.1093/JUE/JUAB008
Abstract: Cities currently harbour more than half of the world’s human population and continued urban expansion replaces natural landscapes and increases habitat fragmentation. The impacts of urbanisation on bio ersity have been extensively studied in some parts of the world, but there is limited information from South Asia, despite the rapid expansion of cities in the region. Here, we present the results of monthly surveys of butterflies in three urban parks in Dhaka city, Bangladesh, over a 3-year period (January 2014 to December 2016). We recorded 45% (137 of the 305 species) of the country’s butterfly richness, and 40% of the species detected are listed as nationally threatened. However, butterfly species richness declined rapidly in the three study areas over the 3-year period, and the decline appeared to be more severe among threatened species. We developed linear mixed effect models to assess the relationship between climatic variables and butterfly species richness. Overall, species richness was positively associated with maximum temperature and negatively with mean relative humidity and saturation deficit. Our results demonstrate the importance of urban green spaces for nationally threatened butterflies. With rapidly declining urban green spaces in Dhaka and other South Asian cities, we are likely to lose refuges for threatened fauna. There is an urgent need to understand urban bio ersity dynamics in the region, and for proactive management of urban green spaces to protect butterflies in South Asia.
Publisher: Springer Science and Business Media LLC
Date: 04-01-2021
Publisher: Elsevier BV
Date: 04-2021
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Mark Goddard.