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Journal articles on the topic 'Trophic ecology'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Djeghri, N., P. Pondaven, F. Le Grand, et al. "High trophic plasticity in the mixotrophic Mastigias papua-Symbiodiniaceae holobiont: implications for the ecology of zooxanthellate jellyfishes." Marine Ecology Progress Series 666 (May 20, 2021): 73–88. http://dx.doi.org/10.3354/meps13707.

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The trophic ecology of mixotrophic, zooxanthellate jellyfishes potentially spans a wide spectrum between autotrophy and heterotrophy. However, their degree of trophic plasticity along this spectrum is not well known. To better characterize their trophic ecology, we sampled the zooxanthellate medusa Mastigias papua in contrasting environments and sizes in Palau (Micronesia). We characterized their trophic ecology using isotopic (bulk δ13C and δ15N), elemental (C:N ratios), and fatty acid compositions. The different trophic indicators were correlated or anti-correlated as expected (Pearson’s cor
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2

Hu, Guan Yu, Jian Hua Li, Bi Lin Liu, Na Liu, and Xin Jun Chen. "Trophic ecology of Humboldt squid (." Marine and Freshwater Research 73, no. 4 (2021): 469–77. http://dx.doi.org/10.1071/mf21183.

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The sclerotised beaks of cephalopods have emerged as useful material to track their habitat and trophic ecology by using stable isotope analysis, because beaks grow continuously throughout their life without replacement. Here, stable isotopes of δ13C and δ15N in five continuous sections along the crest were measured to investigate the potential ontogenetic habitat shift and foraging-ecology change of Dosidicus gigas from the oceanic waters off Ecuador. In total, 90 sections from 18 upper beaks were examined with δ13C values of −18.99 to −17.49‰ and δ15N values of 0.69 to 7.09‰. Kruskal–Wallis
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3

STAPP, PAUL. "Trophic Cascades and Disease Ecology." EcoHealth 4, no. 2 (2007): 121–24. http://dx.doi.org/10.1007/s10393-007-0099-z.

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4

Quiroga, Virginia, Rodrigo E. Lorenzón, Gisela Maglier, and Ana L. Ronchi-Virgolini. "Relationship between Morphology and Trophic Ecology in an Assemblage of Passerine Birds in Riparian Forests of the Paraná River (Argentina)." Avian Biology Research 11, no. 1 (2018): 44–53. http://dx.doi.org/10.3184/175815617x15114328596437.

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We describe the ecomorphology of an assemblage of bird species found in riparian forests of the Middle Paraná River, Argentina. We sought to determine (1) the more important morphological characteristics that separate coexisting species, (2) whether such separation was related to the trophic ecology of each species and (3) whether a priori guilds showed morphological similarity. We tested the hypotheses that (a) a species’ morphology is related to the trophic ecology of that species and (b) that species of a priori guilds are morphometrically more similar to each other than to species of diffe
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5

Ode, Paul J. "Plant toxins and parasitoid trophic ecology." Current Opinion in Insect Science 32 (April 2019): 118–23. http://dx.doi.org/10.1016/j.cois.2019.01.007.

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6

LINDEMAN, R. "The trophic-dynamic aspect of ecology." Bulletin of Mathematical Biology 53, no. 1-2 (1991): 167–91. http://dx.doi.org/10.1016/s0092-8240(05)80045-x.

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7

Lindeman, Raymond L. "The trophic-dynamic aspect of ecology." Bulletin of Mathematical Biology 53, no. 1-2 (1991): 167–91. http://dx.doi.org/10.1007/bf02464428.

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8

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. http://dx.doi.org/10.1071/am15044.

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Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are available. Insects were the principal food source of all sp
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9

Julián-Caballero, César Camilo, Emilio Martínez-Ramírez, Rosa María Gómez-Ugalde, and Eufemia Cruz-Arenas. "Trophic ecology and niche overlap of two sympatric species of Rhamdia (Siluriformes, Heptapteridae) from northeast Oaxaca, Mexico." Neotropical Biology and Conservation 19, no. 2 (2024): 67–86. http://dx.doi.org/10.3897/neotropical.19.e119908.

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The trophic ecology of fishes in the genus Rhamdia remains poorly reported. Here, we aim to describe the diet composition and infer the trophic levels, niche breadth, and niche overlap between Rhamdia guatemalensis and Rhamdia laticauda in northeast Oaxaca, Mexico. Fishes were sampled using an electrofishing device between 2016 and 2017. We calculated the Quotient index and the diet composition was analyzed using the percentage of the Index of Relative Importance (%IRI) to analyze possible ontogenetic and sexual differences on feeding ecology. We then calculated the trophic niche breadth using
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10

Gusakova, Natalia, and Alena Guseva. "Development of the Model for Determining of the Trophic Status of Shallow-Water Reservoir." Advanced Materials Research 838-841 (November 2013): 2578–81. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2578.

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A model for determining of the Taganrog Bay’s trophic status as per hydrochemical indexes is developed. The independent variables for the model are determined, they are: concentration of nitrates, nitrites, ammonium ion, phosphates, temperature, salinity and current velocity. The water reservoir’s trophic status research is conducted, its modern trophic status, the ecology allowable concentration of biogens and the ecology reserves for the water reservoir have been calculated.
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11

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. https://doi.org/10.5281/zenodo.13413082.

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(Uploaded by Plazi for the Bat Literature Project) Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are availabl
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12

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. https://doi.org/10.5281/zenodo.13413082.

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(Uploaded by Plazi for the Bat Literature Project) Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are availabl
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13

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. https://doi.org/10.5281/zenodo.13413082.

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(Uploaded by Plazi for the Bat Literature Project) Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are availabl
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14

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. https://doi.org/10.5281/zenodo.13413082.

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(Uploaded by Plazi for the Bat Literature Project) Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are availabl
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15

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. https://doi.org/10.5281/zenodo.13413082.

Full text
Abstract:
(Uploaded by Plazi for the Bat Literature Project) Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are availabl
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16

Milne, Damian J., Chris J. Burwell, and Chris R. Pavey. "Dietary composition of insectivorous bats of the Top End of Australia." Australian Mammalogy 38, no. 2 (2016): 213. https://doi.org/10.5281/zenodo.13413082.

Full text
Abstract:
(Uploaded by Plazi for the Bat Literature Project) Diet and, more broadly, trophic ecology is an important aspect of microbat ecology that provides valuable information on how species interact and persist within the environment. In this study, we assessed the trophic ecology of a microbat assemblage in the wet–dry tropics of northern Australia. On the basis of analysis of stomach and faecal contents, we assessed 23 species representing seven families, including three species (Taphozous kapalgensis, Nyctophilus arnhemensis and Pipistrellus adamsi) for which no previous dietary data are availabl
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17

Galloway, Aaron W. E., and Suzanne M. Budge. "The critical importance of experimentation in biomarker-based trophic ecology." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1804 (2020): 20190638. http://dx.doi.org/10.1098/rstb.2019.0638.

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Fatty acids are commonly used as biomarkers for making inferences about trophic relationships in aquatic and soil food webs. However, researchers are often unaware of the physiological constraints within organisms on the trophic transfer and modification of dietary biomarkers in consumers. Fatty acids are bioactive molecules, which have diverse structures and functions that both complicate and enhance their value as trophic tracers. For instance, consumers may synthesize confounding non-dietary sourced markers from precursor molecules, and environmental conditions also affect fatty acid compos
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18

Gorman, Courtney E., and C. Darrin Hulsey. "Non-trophic Functional Ecology of Vertebrate Teeth: A Review." Integrative and Comparative Biology 60, no. 3 (2020): 665–75. http://dx.doi.org/10.1093/icb/icaa086.

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Synopsis Teeth are critical to the functional ecology of vertebrate trophic abilities, but are also used for a diversity of other non-trophic tasks. Teeth can play a substantial role in how animals move, manipulate their environment, positively interact with conspecifics, antagonistically interact with other organisms, and sense the environment. We review these non-trophic functions in an attempt to place the utility of human and all other vertebrate dentitions in a more diverse framework that emphasizes an expanded view of the functional importance and ecological diversity of teeth. In light
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19

Esteves, Katharina Eichbaum, José Marcelo Rocha Aranha, and Míriam Pilz Albrecht. "ECOLOGIA TRÓFICA DE PEIXES DE RIACHO: UMA RELEITURA 20 ANOS DEPOIS." Oecologia Australis 25, no. 02 (2021): 266–82. http://dx.doi.org/10.4257/oeco.2021.2502.04.

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The great extent and diversity of ecological conditions of stream ecosystems in Brazil are widely recognized. In the last two decades, studies on stream fishes have contributed to the knowledge about their trophic ecology. However, the large amount of available information is yet fragmented. This chapter presents the state of the art of studies about feeding and trophic ecology of stream fishes in Brazil, an essential topic to understand ecosystem functioning. The review presented here was based on searches on different databases (Scopus, Web of Science, ASFA and Scielo). Results included stud
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20

Plaza, Jeszianlenn L., Ephrime B. Metillo, and Marites B. Sanguila. "Trophic ecology of syntopic anurans of tropical stream communities." Journal of Tropical Ecology 37, no. 3 (2021): 109–17. http://dx.doi.org/10.1017/s0266467421000158.

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AbstractWe investigated trophic resource partitioning in seven syntopic anurans from low- and mid-elevation stream habitats of a tropical riparian ecosystem by utilising stomach content analysis (SCA) and stable isotope analysis (SIA). Our SCA data revealed dietary similarities, narrow trophic niche breadth, and low dietary niche overlap in Ansonia muelleri, Limnonectes magnus, Occidozyga laevis, Megophrys stejnegeri, Pulchrana grandocula, Sanguirana mearnsi, and Staurois natator which could be attributed to these anurans’ selection of available local prey items. We confirmed ant-specialisatio
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21

Elias-Piera, F., S. Rossi, JM Gili, and C. Orejas. "Trophic ecology of seven Antarctic gorgonian species." Marine Ecology Progress Series 477 (March 12, 2013): 93–106. http://dx.doi.org/10.3354/meps10152.

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22

Tierno de Figueroa, J. M., and M. J. López-Rodríguez. "Trophic ecology of Plecoptera (Insecta): a review." European Zoological Journal 86, no. 1 (2019): 79–102. http://dx.doi.org/10.1080/24750263.2019.1592251.

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23

Figgener, Christine, Joseph Bernardo, and Pamela T. Plotkin. "Beyond trophic morphology: stable isotopes reveal ubiquitous versatility in marine turtle trophic ecology." Biological Reviews 94, no. 6 (2019): 1947–73. http://dx.doi.org/10.1111/brv.12543.

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24

Jordán, F. "Trophic fields." Community Ecology 2, no. 2 (2001): 181–85. http://dx.doi.org/10.1556/comec.2.2001.2.5.

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25

Yule, Catherine Mary. "Trophic relationships and food webs of the benthic invertebrate fauna of two aseasonal tropical streams on Bougainville Island, Papua New Guinea." Journal of Tropical Ecology 12, no. 4 (1996): 517–34. http://dx.doi.org/10.1017/s0266467400009755.

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ABSTRACTThe trophic ecology of Konaino Creek, a small mountain headwater stream draining rainforest in the aseasonal tropics on Bougainville Island, Papua New Guinea, was examined and a food web was constructed. The major source of energy in Konaiano Creek was allochthonous detritus, most of which had been terrestrially degraded to fine particulate organic matter rather than entering the stream as leaf litter. This fine detritus was collected by the filter-feeders (mostly Simuliidae and also Hydropsychidae) which formed the dominant functional feeding group (64.4% of the fauna). Thus filterers
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26

Poelman, Erik H., Antonino Cusumano, and Jetske G. de Boer. "The Ecology of Hyperparasitoids." Annual Review of Entomology 67, no. 1 (2022): 143–61. http://dx.doi.org/10.1146/annurev-ento-060921-072718.

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Hyperparasitoids are some of the most diverse members of insect food webs. True hyperparasitoids parasitize the larvae of other parasitoids, reaching these larvae with their ovipositor through the herbivore that hosts the parasitoid larva. During pupation, primary parasitoids also may be attacked by pseudohyperparasitoids that lay their eggs on the parasitoid (pre)pupae. By attacking primary parasitoids, hyperparasitoids may affect herbivore population dynamics, and they have been identified as a major challenge in biological control. Over the past decades, research, especially on aphid- and c
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27

Centomo, Emma, Luca Roner, Marco Salvatori, Paolo Pedrini, and Antonio Romano. "Rare and Hungry: Feeding Ecology of the Golden Alpine Salamander, an Endangered Amphibian in the Alps." Animals 13, no. 13 (2023): 2135. http://dx.doi.org/10.3390/ani13132135.

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Amphibians are considered critical species in the nutrient flow within and across ecosystems, and knowledge on their trophic ecology and niches is crucial for their conservation. For the first time we studied for the first time the trophic ecology of the rare and endemic Salamandra atra aurorae in a mixed temperate forest in northern Italy. We aimed to define the realized trophic niche, investigate the prey selectivity and explore possible levels of individual specialization. In summer 2022 we obtained stomach contents from 53 salamanders by stomach flushing and prey availability using pitfall
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28

Cabanillas-Terán, Nancy, Peggy Loor-Andrade, Ruber Rodríguez-Barreras, and Jorge Cortés. "Trophic ecology of sea urchins in coral-rocky reef systems, Ecuador." PeerJ 4 (January 14, 2016): e1578. http://dx.doi.org/10.7717/peerj.1578.

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Sea urchins are important grazers and influence reef development in the Eastern Tropical Pacific (ETP).Diadema mexicanumandEucidaris thouarsiiare the most important sea urchins on the Ecuadorian coastal reefs. This study provided a trophic scenario for these two species of echinoids in the coral-rocky reef bottoms of the Ecuadorian coast, using stable isotopes. We evaluated the relative proportion of algal resources assimilated, and trophic niche of the two sea urchins in the most southern coral-rocky reefs of the ETP in two sites with different disturbance level. Bayesian models were used to
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29

García-Padrón, L. Yusnaviel, Geydis León Amador, Mariela Mezquía Delgado, and Yusvel Martínez Serrano. "Trophic ecology and morphology of Anolis bartschi (Squamata: Dactyloidae) in Viñales National Park, Cuba." Phyllomedusa: Journal of Herpetology 19, no. 2 (2020): 177–87. http://dx.doi.org/10.11606/issn.2316-9079.v19i2p177-187.

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Trophic ecology and morphology of Anolis bartschi (Squamata: Dactyloidae) in Parque Nacional Viñales, Cuba. Little is known about the trophic ecology of most anoles of Cuba. Morphology is directly related to ecological functions in lizards, such as feeding strategies, interspecifc competition or energetic demands linked to reproduction. Anolis bartschi is a regionally endemic species, restricted to karstic hills of western Cuba. Here, we offer new insights into the trophic ecology of this species, and its relation to head morphology. We captured 131 adults; males were larger than females in si
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30

García-Seoane, Rita, W. Lindsey White, Brett M. Taylor, and Kendall D. Clements. "Characterizing the trophic ecology of herbivorous coral reef fishes using stable isotope and fatty acid biomarkers." PLOS One 20, no. 6 (2025): e0327594. https://doi.org/10.1371/journal.pone.0327594.

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Understanding the trophic ecology of herbivorous and detritivorous fishes is essential for evaluating their ecological roles in coral reef ecosystems. In this study, we combined bulk stable isotope (δ15N and δ13C) and fatty acid analyses to investigate trophic partitioning and dietary resource use among herbivorous and detritivorous fishes from the Great Barrier Reef, Australia. Isotopic niches and fatty acid profiles confirmed significant trophic partitioning among algivores, detritivorous surgeonfishes, and parrotfishes. We also applied mixing models based on these ecological tracers to quan
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31

Pita, Pablo, and Juan Freire. "Trophic ecology of an Atlantic kelp forest fish assemblage (NW Spain) targeted by recreational fishers and implications for coastal management." Journal of the Marine Biological Association of the United Kingdom 99, no. 1 (2017): 19–29. http://dx.doi.org/10.1017/s0025315417001862.

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Although necessary for sustainable management of coastal ecosystems the understanding of trophic ecology of kelp fishes remains largely limited in the NE Atlantic. In this paper, stable isotope ratios of carbon (C) and nitrogen (N), complementarily with analyses of stomach contents, were used to investigate the trophic ecology of an Atlantic kelp forest fish assemblage targeted by spear fishers in Galicia (NW Spain). Trophic habits of the fishes were consistent across the species ranges and six trophic niches were identified. Chelon labrosus was the only pelagic omnivore, while Conger conger a
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32

Toledo, Pamela, Edwin J. Niklitschek, Audrey M. Darnaude, et al. "The trophic ecology of partial migration: insights from Merluccius australis off NW Patagonia." ICES Journal of Marine Science 77, no. 5 (2020): 1927–40. http://dx.doi.org/10.1093/icesjms/fsaa065.

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Abstract Partial migration, where migrant and resident organisms coexist within the same population, has been found in many fishes. Although it seems obvious that different life cycles exploit habitats and food webs differently, few assessments about the trophic consequences of partial migration are available. To unveil part of this complexity, we combined otolith chemistry with stable isotope analyses data for hind-casting Merluccius australis habitat use and diet composition at age. By providing detailed information about lifetime variability in diet, trophic position, and prey demand of fou
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33

Yunda-Guarin, Gustavo, Sheila Atchison, Krista D. Baker, et al. "Trophic ecology and nutritional status of northern shrimp in Canada’s sub-Arctic." PLOS One 20, no. 5 (2025): e0322745. https://doi.org/10.1371/journal.pone.0322745.

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In the Northwest Atlantic Ocean, northern shrimp (Pandalus borealis) play key ecological roles as mid-trophic level consumers and as prey to higher-trophic level predators, including commercial fish species. However, the effects of changing environmental conditions and biological processes on trophic interactions in sub-Arctic ecosystems, particularly on lipid storage and nutrient transfer from intermediate to high trophic levels, remain unclear. Biochemical tracer methods (i.e., fatty acids and stable isotopes) were employed to study the trophic ecology and stage-specific nutritional conditio
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34

Vander Zanden, HB, KE Arthur, AB Bolten, et al. "Trophic ecology of a green turtle breeding population." Marine Ecology Progress Series 476 (February 27, 2013): 237–49. http://dx.doi.org/10.3354/meps10185.

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35

King, J. Logan, Justin S. Sipla, Justin A. Georgi, Amy M. Balanoff, and James M. Neenan. "The endocranium and trophic ecology of Velociraptor mongoliensis." Journal of Anatomy 237, no. 5 (2020): 861–69. http://dx.doi.org/10.1111/joa.13253.

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36

Wahl, David H., Kathleen Bruner, and Larry A. Nielsen. "Trophic Ecology of Freshwater Drum in Large Rivers." Journal of Freshwater Ecology 4, no. 4 (1988): 483–91. http://dx.doi.org/10.1080/02705060.1988.9665198.

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37

Guzman, Laura Melissa, Rachel M. Germain, Coreen Forbes, et al. "Towards a multi‐trophic extension of metacommunity ecology." Ecology Letters 22, no. 1 (2018): 19–33. http://dx.doi.org/10.1111/ele.13162.

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38

Pollo, César J., and Valentı́n Perez-Mellado. "Trophic ecology of a taxocenosis of mediterranean Lacertidae." Ecologia mediterranea 14, no. 3 (1988): 131–47. http://dx.doi.org/10.3406/ecmed.1988.1225.

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39

Saccò, Mattia, Alison J. Blyth, William F. Humphreys, et al. "Elucidating stygofaunal trophic web interactions via isotopic ecology." PLOS ONE 14, no. 10 (2019): e0223982. http://dx.doi.org/10.1371/journal.pone.0223982.

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40

DeAngelis, Donald L. "The case for ratio dependence in trophic ecology." Trends in Ecology & Evolution 28, no. 5 (2013): 259–60. http://dx.doi.org/10.1016/j.tree.2012.12.002.

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41

Sackett, Dana K., Jeffrey C. Drazen, C. Anela Choy, Brian Popp, and Gerald L. Pitz. "Mercury Sources and Trophic Ecology for Hawaiian Bottomfish." Environmental Science & Technology 49, no. 11 (2015): 6909–18. http://dx.doi.org/10.1021/acs.est.5b01009.

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42

Elizarenko, M. M., A. F. Sokolsky, and G. M. Abdurakhmanov. "BIOLOGY, ECOLOGY AND TROPHIC ECOLOGY OF COMMON KILKA CLUPEONELLA DELICATULA CASPIA SVETOV." South of Russia: ecology, development, no. 1 (November 17, 2014): 80. http://dx.doi.org/10.18470/1992-1098-2012-1-80-87.

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43

Leonhard, Isabella, Bryan Shirley, Duncan J. E. Murdock, John Repetski, and Emilia Jarochowska. "Growth and feeding ecology of coniform conodonts." PeerJ 9 (December 14, 2021): e12505. http://dx.doi.org/10.7717/peerj.12505.

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Conodonts were the first vertebrates to develop mineralized dental tools, known as elements. Recent research suggests that conodonts were macrophagous predators and/or scavengers but we do not know how this feeding habit emerged in the earliest coniform conodonts, since most studies focus on the derived, ‘complex’ conodonts. Previous modelling of element position and mechanical properties indicate they were capable of food processing. A direct test would be provided through evidence of in vivo element crown tissue damage or through in vivo incorporated chemical proxies for a shift in their tro
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Borrell, Asunción, Luis Cardona, Ramanathan P. Kumarran, and Alejandro Aguilar. "Trophic ecology of elasmobranchs caught off Gujarat, India, as inferred from stable isotopes." ICES Journal of Marine Science 68, no. 3 (2010): 547–54. http://dx.doi.org/10.1093/icesjms/fsq170.

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Abstract Borrell, A., Cardona, L., Kumarran, R. P., and Aguilar, A. 2011. Trophic ecology of elasmobranchs caught off Gujarat, India, as inferred from stable isotopes. – ICES Journal of Marine Science, 68: . Habitat use and trophic levels were investigated in 13 species of elasmobranch caught off Gujarat, India, through their isotopic composition. Most of the animals were fished commercially and were immature, suggesting that fisheries operate in nursery habitats. All of the sharks analysed except Rhincodon typus had a higher estimated trophic level (>3.8) than rays and guitarfish (<3.8)
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Ercoli, Fabio, Timo J. Ruokonen, Martin Bláha, Antonín Kouba, Miloš Buřič, and Lukaš Veselý. "Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry." NeoBiota 98 (April 1, 2025): 145–62. https://doi.org/10.3897/neobiota.98.127329.

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Studying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem. Due to competitive exclusion and often also dissemination of crayfish plague pathogen (Aphanomyces astaci, Schikora), North American crayfish represent a major threat to European native crayfish. Their co-occurrence is often only temporary, making studies investigating trophic ecology of native and non-native crayfish species rare. In this study, trophic niche and
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MATOS RIBEIRO, ELIANA, TATIANE MARTINS GARCIA, MARCELO OLIVEIRA SOARES, and SERGIO ROSSI. "The gaps in knowledge to understand the link between resilience and trophic ecology in tropical octocorals." Mediterranean Marine Science 26, no. 2 (2025): 312–26. https://doi.org/10.12681/mms.36099.

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The structural and functional change of shallow-water coral reefs is a reality that is still not fully understood. In many areas of the world, such as the Caribbean shallow waters, it has been shown that macroalgae, sponges, and octocorals occupy the seascape left by stress-sensitive scleractinians, which did not resist human impacts. In this paper, we analyze different drivers for the current- day resilience of one of the “winning” taxa, the octocorals, in the face of changing environmental conditions, paying attention to existing gaps in knowledge. The trophic plasticity of these organisms i
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Albuquerque, F. V., A. F. Navia, T. Vaske, O. Crespo, and F. H. V. Hazin. "Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil." Marine and Freshwater Research 70, no. 10 (2019): 1402. http://dx.doi.org/10.1071/mf18352.

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Trophic relationships of large pelagic predators can determine the structure and dynamics of oceanic food webs. The feeding habits and trophic ecology of five large pelagic fish (Acanthocybium solandri, Coryphaena hippurus, Elagatis bipinnulata, Thunnus albacares and Thunnus atlanticus) in the Saint Peter and Saint Paul Archipelago were evaluated to determine whether there is a trophic-niche overlap or resource partitioning among them. Eighty prey items found in 1528 stomachs were identified and grouped into Cephalopoda, Cnidaria, Crustacea, Gastropoda, Teleostei and Tunicata. Exocoetidae and
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Palkovacs, Eric P., Ben A. Wasserman, and Michael T. Kinnison. "Eco-Evolutionary Trophic Dynamics: Loss of Top Predators Drives Trophic Evolution and Ecology of Prey." PLoS ONE 6, no. 4 (2011): e18879. http://dx.doi.org/10.1371/journal.pone.0018879.

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MacKay, R. S., S. Johnson, and B. Sansom. "How directed is a directed network?" Royal Society Open Science 7, no. 9 (2020): 201138. http://dx.doi.org/10.1098/rsos.201138.

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The trophic levels of nodes in directed networks can reveal their functional properties. Moreover, the trophic coherence of a network, defined in terms of trophic levels, is related to properties such as cycle structure, stability and percolation. The standard definition of trophic levels, however, borrowed from ecology, suffers from drawbacks such as requiring basal nodes, which limit its applicability. Here we propose simple improved definitions of trophic levels and coherence that can be computed on any directed network. We demonstrate how the method can identify node function in examples i
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Gaston, Gary R., Chet F. Rakocinski, Steven S. Brown, and Carol M. Cleveland. "Trophic function in estuaries: response of macrobenthos to natural and contaminant gradients." Marine and Freshwater Research 49, no. 8 (1998): 833. http://dx.doi.org/10.1071/mf97089.

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Trophic ecology of macrobenthic communities in estuaries of the northern Gulf of Mexico was used to infer community function, determine effects of contaminants on macrobenthos, and provide insight into community responses following disturbance. The taxa that numerically dominated the region included few large, deep-burrowing suspension feeders that typify estuaries elsewhere. This pattern is indicative of disturbance, and results in dominance by trophic groups that live near the sediment–water interface (early benthic-community succession). Trophic structure was significantly related to severa
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