Tissue-specific turnover and diet-tissue discrimination factors of carbon and nitrogen isotopes of a common forage fish held at two temperatures

2017 ◽  
Vol 31 (17) ◽  
pp. 1405-1414 ◽  
Author(s):  
S.F. Colborne ◽  
A.T. Fisk ◽  
T.B. Johnson
Keyword(s):  
Nitrogen Isotopes ◽  
Forage Fish ◽  
Tissue Specific ◽  
Carbon And Nitrogen Isotopes ◽  
Carbon And Nitrogen ◽  
Tissue Discrimination ◽  
Two Temperatures ◽  
Discrimination Factors

scholarly journals Diet to tissue discrimination factors for the blood and feathers of the monk parakeet (Myiopsitta monachus) and the ring–necked parakeet (Psittacula krameri)

2019 ◽  
pp. 389-395 ◽  
Author(s):  
D. Mazzoni ◽  
N. A. Borray-Escalante ◽  
A. Ortega–Segalerva ◽  
L. Arroyo ◽  
J. González–Solís ◽  
...  
Keyword(s):  
Nitrogen Isotopes ◽  
Single Species ◽  
Prey Type ◽  
Monk Parakeet ◽  
Carbon And Nitrogen ◽  
Myiopsitta Monachus ◽  
Psittacula Krameri ◽  
Tissue Discrimination ◽  
The Difference ◽  
Discrimination Factors

Stable isotope analyses (SIAs) have been widely used in recent years to infer the diet of many species. This isotopic approach requires using diet to tissue discrimination factors (DTDFs) for each prey type and predator tissue, i.e., to determine the difference between the isotopic composition of the predator tissues and the different prey that conform its diet. Information on DTDF values in Psittaciformes is scarce. The aim of this study was to assess DTDF values for the carbon and nitrogen isotopes of the monk parakeet (Myiopsitta monachus) and the ring–necked parakeet (Psittacula krameri), two invasive alien species of concern. We fed captive birds of the two parakeet species on a single–species diet based on sunflower seeds to establish the DTDFs for the blood and feathers. In the monk parakeet (N = 9) DTDFs were Δδ13C 2.14 ‰ ± 0.90 and Δδ15N 3.21 ‰ ± 0.75 for the blood, and Δδ13C 3.97 ‰ ± 0.90 and Δδ15N 3.67 ‰ ± 0.74 for the feathers. In the ring–necked parakeet (N = 9), the DTDFs were Δδ13C (‰) 2.58 ± 0.90 and Δδ15N (‰) 2.35 ± 0.78 for the blood, and Δδ13C 3.64 ‰ ± 0.98 and Δδ15N 4.10 ‰ ± 1.84 for the feathers. DTDF values for the ring–necked parakeet blood were significantly higher than those for the monk parakeet blood. No difference was found between the two species in the DTDF for feathers. Our findings provide the first values of DTDFs for blood and feathers in these parakeets, factors that are key to infer the diet of these species based on SIA.

scholarly journals Trophic Discrimination Factors of Stable Carbon and Nitrogen Isotopes in Hair of Corn Fed Wild Boar

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0125042 ◽  
Author(s):  
Michaela Holá ◽  
Miloš Ježek ◽  
Tomáš Kušta ◽  
Michaela Košatová
Keyword(s):  
Wild Boar ◽  
Nitrogen Isotopes ◽  
Stable Carbon ◽  
Carbon And Nitrogen Isotopes ◽  
Carbon And Nitrogen ◽  
Discrimination Factors ◽  
Trophic Discrimination

scholarly journals Fifty years of eutrophication and lake restoration reflected in sedimentary carbon and nitrogen isotopes of a small, hardwater lake (south Germany)

2013 ◽  
Vol 72 (2) ◽  
pp. 21 ◽  
Author(s):  
Emanuel Braig ◽  
Christoph Mayr ◽  
Gerald Kirchner ◽  
Andrea Hofmann ◽  
Uta Raeder ◽  
...  
Keyword(s):  
Lake Restoration ◽  
Nitrogen Isotopes ◽  
Carbon And Nitrogen Isotopes ◽  
Carbon And Nitrogen ◽  
Sedimentary Carbon

Zooplankton trophic structure in Lake Michigan as revealed by stable carbon and nitrogen isotopes

2015 ◽  
Vol 41 ◽  
pp. 104-114 ◽  
Author(s):  
Zachery G. Driscoll ◽  
Harvey A. Bootsma ◽  
Elizabeth Christiansen
Keyword(s):  
Trophic Structure ◽  
Lake Michigan ◽  
Nitrogen Isotopes ◽  
Stable Carbon ◽  
Carbon And Nitrogen Isotopes ◽  
Carbon And Nitrogen
Sign in / Sign up

Export Citation Format

Share Document