کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6359076 | 1622749 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Coastal urbanization leads to remarkable seaweed species loss and community shifts along the SW Atlantic
ترجمه فارسی عنوان
شهرنشینی ساحلی منجر به از دست رفتن گونه های جلبک دریایی و تغییرات اجتماعی در امتداد ساحل آتلانتیک می شود
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
Coastal urbanization is rapidly expanding worldwide while its impacts on seaweed communities remain poorly understood. We assessed the impact of urbanization along an extensive latitudinal gradient encompassing three phycogeographical regions in the SW Atlantic. Human population density, number of dwellings, and terrestrial vegetation cover were determined for each survey area and correlated with diversity indices calculated from seaweed percent cover data. Urban areas had significantly lower calcareous algal cover (â38%), and there was significantly less carbonate in the sediment off urban areas than off reference areas. Seaweed richness averaged 26% less in urban areas than in areas with higher vegetation cover. We observed a remarkable decline in Phaeophyceae and a substantial increase of Chlorophyta in urban areas across a wide latitudinal gradient. Our data show that coastal urbanization is causing substantial loss of seaweed biodiversity in the SW Atlantic, and is considerably changing seaweed assemblages.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 76, Issues 1â2, 15 November 2013, Pages 106-115
Journal: Marine Pollution Bulletin - Volume 76, Issues 1â2, 15 November 2013, Pages 106-115
نویسندگان
Fernando Scherner, Paulo Antunes Horta, Eurico Cabral de Oliveira, José Carlos Simonassi, Jason M. Hall-Spencer, Fungyi Chow, José Marcos C. Nunes, Sonia Maria Barreto Pereira,