Multi-tissue stable isotope analysis reveals resource partitioning and trophic relationships of large reef-associated predators

2019 ◽  
Vol 615 ◽  
pp. 159-176 ◽  
Author(s):  
M Espinoza ◽  
J Matley ◽  
MR Heupel ◽  
AJ Tobin ◽  
AT Fisk ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Resource Partitioning ◽  
Isotope Analysis ◽  
Trophic Relationships

Trophic relationships in a tropical stream food web assessed by stable isotope analysis

2009 ◽  
Vol 54 (5) ◽  
pp. 1028-1041 ◽  
Author(s):  
SOPHIE COAT ◽  
DOMINIQUE MONTI ◽  
CLAUDE BOUCHON ◽  
GILLES LEPOINT
Keyword(s):  
Stable Isotope ◽  
Food Web ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Relationships ◽  
Tropical Stream

Trophic relationships of the platypus: insights from stable isotope and cheek pouch dietary analyses

2016 ◽  
Vol 67 (8) ◽  
pp. 1196 ◽  
Author(s):  
Melissa Klamt ◽  
Jenny A. Davis ◽  
Ross M. Thompson ◽  
Richard Marchant ◽  
Tom R. Grant
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Relationships ◽  
Cheek Pouch ◽  
Insect Larvae ◽  
Top Down ◽  
Δ13c And Δ15n ◽  
Eastern Australia ◽  
Wide Range

The unique Australian monotreme, the platypus (Ornithorhynchus anatinus) potentially exerts a strong top-down influence on riverine food webs in eastern Australia. However, despite considerable interest in the evolutionary history and physiology of the platypus, little is known of its trophic relationships. To address this lack of knowledge we used stable isotope analysis, in combination with the analysis of food items stored in cheek pouches, to determine its position in a typical riverine food web. This was the essential first step in the process of designing a larger study to investigate the relative importance of top-down and bottom-up effects in rivers where the platypus occurs. We found that platypuses were feeding on a wide range of benthic invertebrates, particularly insect larvae. The similarity of δ13C and δ15N values recorded for the platypus, a native fish (Galaxias sp.) and the exotic mosquitofish (Gambusia holbrooki) indicated dietary overlap and potential competition for the same resources. Although cheek pouch studies identify most of the major groups of prey organisms, the potential for contribution of the soft-bodied organisms such as larval dipterans, is suggested by stable isotope analysis, indicating that the use of both techniques will be important in future ecological investigations.

Trophic Relationships among Six Species of Icelandic Seabirds as Determined through Stable Isotope Analysis

The Condor ◽  
1999 ◽  
Vol 101 (4) ◽  
pp. 898-903 ◽  
Author(s):  
David R. Thompson ◽  
Kristjan Lilliendahl ◽  
Jon Solmundsson ◽  
Robert W. Furness ◽  
Susan Waldron ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Relationships

Trophic relationships in the nearshore zone of Martel Inlet (King George Island, Antarctica): ?13C stable-isotope analysis

Polar Biology ◽  
2004 ◽  
Vol 27 (2) ◽  
pp. 75-82 ◽  
Author(s):  
Tha�s N. Corbisier ◽  
Monica A. V. Petti ◽  
Rodrigo S. P. Skowronski ◽  
Tania A. S. Brito
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Relationships ◽  
King George Island ◽  
Nearshore Zone

Stable isotope analysis in two sympatric populations of bottlenose dolphins Tursiops truncatus: evidence of resource partitioning?

2011 ◽  
Vol 158 (5) ◽  
pp. 1043-1055 ◽  
Author(s):  
Ruth Fernández ◽  
Susana García-Tiscar ◽  
M. Begoña Santos ◽  
Alfredo López ◽  
Jose A. Martínez-Cedeira ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Resource Partitioning ◽  
Tursiops Truncatus ◽  
Bottlenose Dolphins ◽  
Isotope Analysis ◽  
Sympatric Populations
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