scholarly journals Occurrence patterns of crop‐foraging sika deer distribution in an agriculture–forest landscape revealed by nitrogen stable isotopes

2021 ◽  
Author(s):  
Ayaka Hata ◽  
Rumiko Nakashita ◽  
Keita Fukasawa ◽  
Masato Minami ◽  
Yuko Fukue ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Sika Deer ◽  
Forest Landscape ◽  
Nitrogen Stable Isotopes ◽  
Occurrence Patterns ◽  
Crop Foraging

scholarly journals Assessment of trophic relationships between symbiotic tropical ophiuroids using C and N stable isotope analysis

2006 ◽  
Vol 86 (6) ◽  
pp. 1443-1447 ◽  
Author(s):  
D. Fourgon ◽  
G. Lepoint ◽  
I. Eeckhaut
Keyword(s):  
Stable Isotopes ◽  
Potential Benefit ◽  
Feeding Habits ◽  
Isotope Analysis ◽  
Tracer Experiment ◽  
Trophic Relationships ◽  
Nitrogen Stable Isotopes ◽  
Carbon And Nitrogen ◽  
C And N ◽  
The One

Analyses of the natural abundance of carbon and nitrogen stable isotopes were performed to investigate the feeding habits of two ophiuroids, Ophiomastix venosa and Ophiocoma scolopendrina, and to assess the potential benefit obtained by the symbiotic Ophiomastix venosa juveniles. A tracer experiment was also carried out to clarify the contribution of algae to the nitrogen uptake amongst the tested ophiuroids. Our results suggest that Ophiocoma scolopendrina adults occupy a higher position in the food web than Ophiomastix venosa and mainly feed on neuston. In contrast, O. venosa adults feed on the alga Sargassum densifolium and on organic matter associated with sediment. Free juveniles and symbiotic juveniles of O. venosa have intermediate δ13C values between both adult species. The high proportion of 13C in the symbiotic juveniles compared to the one in their conspecific adults indicates that their diet slightly differs from the latter and is closer to that of Ophiocoma scolopendrina. This raises the hypothesis that symbiotic juveniles steal neuston from their associated host, O. scolopendrina.

Diet and mobility in Early Medieval Bavaria: A study of carbon and nitrogen stable isotopes

2010 ◽  
Vol 143 (2) ◽  
pp. 235-249 ◽  
Author(s):  
Susanne Hakenbeck ◽  
Ellen McManus ◽  
Hans Geisler ◽  
Gisela Grupe ◽  
Tamsin O'Connell
Keyword(s):  
Stable Isotopes ◽  
Nitrogen Stable Isotopes ◽  
Early Medieval ◽  
Carbon And Nitrogen
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