scholarly journals Nitrogen-stable isotope signatures in estuarine food webs: A record of increasing urbanization in coastal watersheds

1997 ◽  
Vol 42 (5) ◽  
pp. 930-937 ◽  
Author(s):  
James W. McClelland ◽  
Ivan Valiela ◽  
Robert H. Michener
Keyword(s):  
Stable Isotope ◽  
Food Webs ◽  
Nitrogen Stable Isotope ◽  
Coastal Watersheds ◽  
Stable Isotope Signatures

Carbon and nitrogen stable isotope signatures of deep-sea meiofauna follow oceanographical gradients across the Southern Ocean

2013 ◽  
Vol 110 ◽  
pp. 69-79 ◽  
Author(s):  
Gritta Veit-Köhler ◽  
Katja Guilini ◽  
Ilka Peeken ◽  
Petra Quillfeldt ◽  
Christoph Mayr
Keyword(s):  
Stable Isotope ◽  
Southern Ocean ◽  
Deep Sea ◽  
Nitrogen Stable Isotope ◽  
Carbon And Nitrogen ◽  
Stable Isotope Signatures

scholarly journals The influence of breeding colony and sex on mercury, selenium and lead levels and carbon and nitrogen stable isotope signatures in summer and winter feathers of Calonectris shearwaters

Oecologia ◽  
2008 ◽  
Vol 159 (2) ◽  
pp. 345-354 ◽  
Author(s):  
Raül Ramos ◽  
Jacob González-Solís ◽  
Manuela G. Forero ◽  
Rocío Moreno ◽  
Elena Gómez-Díaz ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Nitrogen Stable Isotope ◽  
Breeding Colony ◽  
Carbon And Nitrogen ◽  
Stable Isotope Signatures ◽  
Lead Levels

The structure of a food web in a tropical rain forest in Malaysia based on carbon and nitrogen stable isotope ratios

2010 ◽  
Vol 26 (2) ◽  
pp. 205-214 ◽  
Author(s):  
Fujio Hyodo ◽  
Takashi Matsumoto ◽  
Yoko Takematsu ◽  
Tamaki Kamoi ◽  
Daisuke Fukuda ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Food Web ◽  
Food Webs ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Stable Isotope Ratios ◽  
Trophic Groups ◽  
Nitrogen Stable Isotope ◽  
Carbon And Nitrogen ◽  
Below Ground

Abstract:Carbon and nitrogen stable isotope ratios (δ13C and δ15N) have been used to study the structure of food webs. However, few studies have examined how a terrestrial food web can be depicted by this technique. We measured δ13C and δ15N in various consumers of four trophic groups (detritivores, herbivores, omnivores and predators), including vertebrates and invertebrates (14 orders, ≥24 families), as well as canopy and understorey leaves in a tropical rain forest in Malaysia. We found that δ13C and δ15N of the consumers differed significantly among the trophic groups. The predators had significantly higher δ13C than the herbivores, and were similar in δ13C to the detritivores, suggesting that most predators examined depend largely on below-ground food webs. δ15N was higher in predators than detritivores by about 3‰. The comparison of δ13C in plant materials and herbivores suggests that most herbivores are dependent on C fixed in the canopy layers. The vertebrates had significantly higher δ15N and δ13C than the invertebrates of the same trophic group, likely reflecting differences in the physiological processes and/or feeding habits. This study indicates that stable isotope techniques can help better understanding of the terrestrial food webs in terms of both trophic level and the linkage of above- and below-ground systems.

scholarly journals Body-size dependent temporal variations in nitrogen stable isotope ratios in food webs

2008 ◽  
Vol 370 ◽  
pp. 199-206 ◽  
Author(s):  
S Jennings ◽  
TAD Maxwell ◽  
M Schratzberger ◽  
SP Milligan
Keyword(s):  
Body Size ◽  
Stable Isotope ◽  
Food Webs ◽  
Isotope Ratios ◽  
Temporal Variations ◽  
Stable Isotope Ratios ◽  
Nitrogen Stable Isotope ◽  
Size Dependent

Within-lake variability in carbon and nitrogen stable isotope signatures

2006 ◽  
Vol 51 (6) ◽  
pp. 1090-1102 ◽  
Author(s):  
JARI SYVARANTA ◽  
HEIKKI HAMALAINEN ◽  
ROGER I. JONES
Keyword(s):  
Stable Isotope ◽  
Nitrogen Stable Isotope ◽  
Carbon And Nitrogen ◽  
Stable Isotope Signatures
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