Stable isotope analysis suggests low trophic niche partitioning among co‐occurring land snail species in a floodplain forest

2021 ◽  
Author(s):  
T. Němec ◽  
E. Líznarová ◽  
K. Birkhofer ◽  
M. Horsák
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Niche Partitioning ◽  
Land Snail ◽  
Trophic Niche ◽  
Floodplain Forest ◽  
Snail Species

Stable isotope analysis of trophic niche in two co-occurring native and invasive terrapins, Emys orbicularis and Trachemys scripta elegans

2016 ◽  
Vol 18 (12) ◽  
pp. 3611-3621 ◽  
Author(s):  
Paride Balzani ◽  
Salvatrice Vizzini ◽  
Giacomo Santini ◽  
Alberto Masoni ◽  
Claudio Ciofi ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Niche ◽  
Trachemys Scripta ◽  
Trachemys Scripta Elegans ◽  
Emys Orbicularis

scholarly journals Niche partitioning among and within sympatric tropical seabirds revealed by stable isotope analysis

2010 ◽  
Vol 416 ◽  
pp. 285-294 ◽  
Author(s):  
HS Young ◽  
DJ McCauley ◽  
R Dirzo ◽  
RB Dunbar ◽  
SA Shaffer
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Niche Partitioning

scholarly journals Stable isotope analyses identify trophic niche partitioning between sympatric terrestrial vertebrates in coastal saltmarshes with differing oiling histories

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11392
Author(s):  
Sydney Moyo ◽  
Hayat Bennadji ◽  
Danielle Laguaite ◽  
Anna A. Pérez-Umphrey ◽  
Allison M. Snider ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Oil Spills ◽  
Foraging Ecology ◽  
Isotope Analysis ◽  
Niche Partitioning ◽  
Trophic Niche ◽  
Bioindicator Species ◽  
Terrestrial Vertebrates ◽  
Oryzomys Palustris ◽  
Trophic Niches

Bioindicator species are commonly used as proxies to help identify the ecological effects of oil spills and other stressors. However, the utility of taxa as bioindicators is dependent on understanding their trophic niche and life history characteristics, as these factors mediate their ecological responses. Seaside sparrows (Ammospiza maritima) and marsh rice rats (Oryzomys palustris) are two ubiquitous terrestrial vertebrates that are thought to be bioindicators of oil spills in saltmarsh ecosystems. To improve the utility of these omnivorous taxa as bioindicators, we used carbon and nitrogen stable isotope analysis to quantify their trophic niches at saltmarshes in coastal Louisiana with differing oiling histories. We found that rats generally had lower trophic positions and incorporated more aquatic prey relative to seaside sparrows. The range of resources used (i.e.,trophic niche width) varied based on oiling history. Seaside sparrows had wider trophic niches than marsh rice rats at unoiled sites, but not at oiled sites. Trophic niche widths of conspecifics were less consistent at oiled sites, although marsh rice rats at oiled sites had wider trophic niches than rats at unoiled sites. These results suggest that past oiling histories may have imparted subtle, yet differing effects on the foraging ecology of these two co-occurring species. However, the temporal lag between initial oiling and our study makes identifying the ultimate drivers of differences between oiled and unoiled sites challenging. Even so, our findings provide a baseline quantification of the trophic niches of sympatric seaside sparrows and marsh rice rats that will aid in the use of these species as indicators of oiling and other environmental stressors in saltmarsh ecosystems.

The Ontogenetically Variable Trophic Niche of a Praying Mantid Revealed by Stable Isotope Analysis

2015 ◽  
Vol 44 (2) ◽  
pp. 239-245 ◽  
Author(s):  
L. E. Hurd ◽  
P. A. P. Dehart ◽  
J. M. Taylor ◽  
M. C. Campbell ◽  
M. M. Shearer
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Niche ◽  
Praying Mantid

scholarly journals Sources of variation in small rodent trophic niche: new insights from DNA metabarcoding and stable isotope analysis

2014 ◽  
Vol 50 (3) ◽  
pp. 361-381 ◽  
Author(s):  
Eeva M. Soininen ◽  
Dorothée Ehrich ◽  
Nicolas Lecomte ◽  
Nigel G. Yoccoz ◽  
Arnaud Tarroux ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Trophic Niche ◽  
Small Rodent ◽  
Dna Metabarcoding ◽  
Sources Of Variation

scholarly journals Trophic plasticity of the highly invasive topmouth gudgeon (Pseudorasbora parva) inferred from stable isotope analysis

2019 ◽  
Author(s):  
Matteo Rolla ◽  
Sofia Consuegra ◽  
Carlos Garcia de Leaniz
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Condition Factor ◽  
Trophic Position ◽  
Isotope Analysis ◽  
Trophic Niche ◽  
Pseudorasbora Parva ◽  
Trophic Plasticity ◽  
Topmouth Gudgeon ◽  
South Wales

AbstractA wide trophic niche and high trophic plasticity are often invoked to explain the successful establishment of many aquatic invaders, but there is little information regarding the diet of most invasive fish in European waters. We combined stomach content and stable isotope analysis (SIA) of13C and15N to examine the trophic niche of the highly invasive topmouth gudgeon (Pseudorasbora parva) in four contrasting ponds and reservoirs in South Wales. Marked differences in diet and trophic position were found among neighbouring systems only a few kilometres apart. The most diverse diet was found in ponds with the fewest number of inter-specific competitors, and resulted in topmouth gudgeon having the highest condition factor, the widest variation in δ13C and δ15N values, and the highest carbon content, typical of generalist feeders. In contrast, topmouth gudgeon that coexisted with other cyprinids, were much more likely to have empty stomachs and relied almost exclusively on plant seeds, resulting in fish having a poor condition factor and low trophic position. Comparisons with other trophic studies indicate that variation in isotope values among neighbouring sites can exceed variation across continents, making it difficult to predict the diet or trophic impacts of the invasive topmouth gudgeon. Given the importance of obtaining reliable data on trophic position for risk assessment, our study shows that the use of SIA could be used to prioritize control and eradication measures that take into account trophic plasticity.

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