Life history of a mule (c . 160 AD) from the Roman fort Biriciana/ Weißenburg (Upper Bavaria) as revealed by serial stable isotope analysis of dental tissues

2008 ◽  
Vol 20 (2) ◽  
pp. 158-171 ◽  
Author(s):  
T. E. Berger ◽  
J. Peters ◽  
G. Grupe
Keyword(s):  
Life History ◽  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Dental Tissues ◽  
History Of

scholarly journals Stable isotope analysis of vertebrae reveals ontogenetic changes in habitat in an endothermic pelagic shark

2015 ◽  
Vol 282 (1799) ◽  
pp. 20141446 ◽  
Author(s):  
Aaron B. Carlisle ◽  
Kenneth J. Goldman ◽  
Steven Y. Litvin ◽  
Daniel J. Madigan ◽  
Jennifer S. Bigman ◽  
...  
Keyword(s):  
Life History ◽  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Prey Availability ◽  
Isotope Analysis ◽  
Isotopic Niche ◽  
Mixing Models ◽  
Ontogenetic Shift ◽  
Ontogenetic Changes ◽  
History Of

Ontogenetic changes in habitat are driven by shifting life-history requirements and play an important role in population dynamics. However, large portions of the life history of many pelagic species are still poorly understood or unknown. We used a novel combination of stable isotope analysis of vertebral annuli, Bayesian mixing models, isoscapes and electronic tag data to reconstruct ontogenetic patterns of habitat and resource use in a pelagic apex predator, the salmon shark ( Lamna ditropis ). Results identified the North Pacific Transition Zone as the major nursery area for salmon sharks and revealed an ontogenetic shift around the age of maturity from oceanic to increased use of neritic habitats. The nursery habitat may reflect trade-offs between prey availability, predation pressure and thermal constraints on juvenile endothermic sharks. The ontogenetic shift in habitat coincided with a reduction of isotopic niche, possibly reflecting specialization upon particular prey or habitats. Using tagging data to inform Bayesian isotopic mixing models revealed that adult sharks primarily use neritic habitats of Alaska yet receive a trophic subsidy from oceanic habitats. Integrating the multiple methods used here provides a powerful approach to retrospectively study the ecology and life history of migratory species throughout their ontogeny.

scholarly journals Sequential stable isotope analysis reveals differences in dietary history of three sympatric equid species in the Mongolian Gobi

2016 ◽  
Vol 54 (4) ◽  
pp. 1110-1119 ◽  
Author(s):  
Martina Burnik Šturm ◽  
Oyunsaikhan Ganbaatar ◽  
Christian C. Voigt ◽  
Petra Kaczensky
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Dietary History ◽  
History Of

scholarly journals Show Me Your Rump Hair and I Will Tell You What You Ate – The Dietary History of Muskoxen (Ovibos moschatus) Revealed by Sequential Stable Isotope Analysis of Guard Hairs

PLoS ONE ◽  
2016 ◽  
Vol 11 (4) ◽  
pp. e0152874 ◽  
Author(s):  
Jesper Bruun Mosbacher ◽  
Anders Michelsen ◽  
Mikkel Stelvig ◽  
Ditte Katrine Hendrichsen ◽  
Niels Martin Schmidt
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Ovibos Moschatus ◽  
Dietary History ◽  
History Of

Variation in morphology and life-history strategy of an exploited sparid fish

2016 ◽  
Vol 67 (10) ◽  
pp. 1434 ◽  
Author(s):  
D. M. Parsons ◽  
M. A. Morrison ◽  
B. M. Gillanders ◽  
K. D. Clements ◽  
S. J. Bury ◽  
...  
Keyword(s):  
Life History ◽  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Fishery Management ◽  
Isotope Analysis ◽  
Life History Strategy ◽  
Rocky Reef ◽  
Discrete Groups ◽  
Otolith Chemistry ◽  
Functional Aspects

Defining appropriate management units to balance productivity and yield of exploited species is fundamental to effective resource management. Anecdotal and tag–recapture information related to morphology, movement behaviour and life-history strategy suggest that separate groups of snapper (Chrysophrys auratus) exist in the Hauraki Gulf, New Zealand. To address the existence of discrete groups, we examined morphology, meristics and otolith chemistry from snapper collected throughout the Hauraki Gulf. We also used tag–recapture information, stable isotope analysis and interpreted functional aspects of morphology and meristics data to understand potential life-history strategy differences. Snapper from rocky reef habitats did not display morphology and meristic features distinct from snapper from soft sediment habitats and differences in otolith chemistry and stable isotope ratios could respectively be explained by a locational influence and predominance of kelp in rocky reef food webs. Conversely, snapper collected from a known spawning area had distinct morphological and meristic features consistent with semi–pelagic sparids and stable isotope analysis also indicated a potentially more pelagic and higher trophic-level diet. Maintenance of population complexity such as this is generally beneficial to fish populations, and can be achieved by revisiting the spatial units used for fishery management.

Sign in / Sign up

Export Citation Format

Share Document