DOI: 10.1016/j.marpolbul.2013.06.024
Scopus记录号: 2-s2.0-84902077473
论文题名: The degree of urbanization across the globe is not reflected in the δ15N of seagrass leaves
作者: Christiaen B. ; Bernard R.J. ; Mortazavi B. ; Cebrian J. ; Ortmann A.C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 83, 期: 2 起始页码: 440
结束页码: 445
语种: 英语
英文关键词: Isotope
; Nitrogen
; Nutrients
; Pollution
; Seagrass
; Urbanization
Scopus关键词: Fertilizers
; Isotopes
; Nitrogen
; Nutrients
; Pollution
; Population statistics
; Watersheds
; Coastal watersheds
; Isotopic signatures
; Latitudinal gradients
; Population densities
; Positive correlations
; Sample location
; Seagrasses
; Urbanization
; Plants (botany)
; nitrogen
; carbon
; nitrogen
; fertilizer application
; nitrogen isotope
; pollution effect
; population density
; seagrass
; urbanization
; aquaculture
; article
; coastal waters
; controlled study
; coral reef
; ecosystem
; estuary
; eutrophication
; fertilization
; lagoon
; nonhuman
; population density
; seagrass
; sewage
; urbanization
; watershed
; Alismatales
; chemistry
; metabolism
; plant leaf
; Alismatidae
; Carbon Isotopes
; Nitrogen
; Nitrogen Isotopes
; Plant Leaves
; Population Density
; Urbanization
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Many studies show that seagrass δ15N ratios increase with the amount of urbanization in coastal watersheds. However, there is little information on the relationship between urbanization and seagrass δ15N ratios on a global scale. We performed a meta-analysis on seagrass samples from 79 independent locations to test if seagrass δ15N ratios correlate with patterns of population density and fertilizer use within a radius of 10-200km around the sample locations. Our results show that seagrass δ15N ratios are more influenced by intergeneric and latitudinal differences than the degree of urbanization or the amount of fertilizer used in nearby watersheds. The positive correlation between seagrass δ15N ratios and latitude hints at an underlying pattern in discrimination or a latitudinal gradient in the 15N isotopic signature of nitrogen assimilated by the plants. The actual mechanisms responsible for the correlation between δ15N and latitude remain unknown. © 2013 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85457
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: The University of South Alabama, Department of Marine Sciences, Mobile, AL 36688, United States; The Dauphin Island Sea Lab, 101 Bienville Blvd, Dauphin Island, AL 36528, United States; The University of Alabama, Department of Biological Sciences, Tuscaloosa, AL 35487, United States
Recommended Citation:
Christiaen B.,Bernard R.J.,Mortazavi B.,et al. The degree of urbanization across the globe is not reflected in the δ15N of seagrass leaves[J]. Marine Pollution Bulletin,2014-01-01,83(2)