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A Review on Coastal Urban Ecology: Research Gaps, Challenges, and Needs

Journal

FRONTIERS IN MARINE SCIENCE
Volume 8, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fmars.2021.617897

Keywords

coastal urban ecology; marine urbanization; coastal cities; urban ecology paradigms; coastal urbanization

Funding

  1. National Agency for Research and Development (ANID) [21171829]
  2. ANID-Millennium Science Initiative Program [ICN2019_015]
  3. Center of Applied Ecology and Sustainability (CAPES) [ANID PIA/BASAL FB0002]
  4. Fondecyt [1190109]

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Research on coastal urban areas has increased in recent decades, but remains limited. Studies mainly focus on ecology, spatial and quantitative analysis, and pollution, with a majority coming from the USA, China, and Australia, and focusing on large cities with populations between 1 and 5 million. There are biases in terms of disciplines, geography, and approaches, with a lack of understanding of social dimensions being a key risk factor.
Coastal urban areas have dramatically increased during the last decades, however, coastal research integrating the impacts and challenges facing urban areas is still scarce. To examine research advances and critical gaps, a review of the literature on coastal urban ecology was performed. Articles were selected following a structured decision tree and data were classified into study disciplines, approaches, type of analysis, main research objectives, and Pickett's paradigms in-, of-, and for- the city, among other categories. From a total of 237 publications, results show that most of the research comes from the USA, China, and Australia, and has been carried out mostly in large cities with populations between 1 and 5 million people. Focus has been placed on ecological studies, spatial and quantitative analysis and pollution in coastal urban areas. Most of the studies on urban ecology in coastal zones were developed at nearshore terrestrial environments and only 22.36% included the marine ecosystem. Urban ecological studies in coastal areas have mainly been carried out under the paradigm in the city with a focus on the disciplines of biology and ecology. Results suggest a series of disciplinary, geographical, and approach biases which can present a number of risks. Foremost among these is a lack of knowledge on social dimensions which can impact on sustainability. A key risk relates to the fact that lessons and recommendations of research are mainly from developed countries and large cities which might have different institutional, planning and cultural settings compared to developing and mid-income countries. Scientific research on coastal urban areas needs to diversify toward an ecology of and for the cities, in order to support coastal development in a diversity of countries and settings.

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