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Stomach contents (1977-1981) and stable isotopes (1994) from the Everglades, Florida, USA from the publication "Fishes in a seasonally pulsed wetland show spatiotemporal shifts in diet and trophic niche but not shifts in trophic position"
Stomach contents of fishes (1977-1981) and stable isotopes of fishes, invertebrates, and basal resources (1994) were collected from spikerush marsh, sawgrass ridge, and alligator pond habitats in Shark River Slough, Everglades National Park, Florida, USA. These data were used to quantify diet, trophic niche area, trophic position, basal resource use and how these metrics vary among size classes, seasons, and habitats. Data collection is complete. These data support Flood et al. (2023). Associated R code will be made available through Peter Flood's GitHub: https://github.com/pjflood/historic_everglades_aquatic_food_web. References: Flood, Peter J., William F. Loftus, and Joel C. Trexler. "Fishes in a seasonally pulsed wetland show spatiotemporal shifts in diet and trophic niche but not shifts in trophic position." Food Webs 34 (2023): e00265. https://doi.org/10.1016/j.fooweb.2022.e00265
Figure 5 in Variations in trophic niches of generalist predators with plant community composition as indicated by stable isotopes and fatty acids
Figure 5. Principal components analysis of the relative abundance (mol %, logit- transformed) of individual NLFAs of Trochosa ruricola using body size (small, large), flooding index (FI), plant species richness (SR), plant functional group richness (FG), presence of grasses (Gr), legumes (Leg), small herbs (SH) and tall herbs (TH) as supplementary variables.
Figure 4 in Variations in trophic niches of generalist predators with plant community composition as indicated by stable isotopes and fatty acids
Figure 4. Variations in δ15N signatures of Trochosa ruricola as affected by flooding index (P = 0.04, R2 = 0.12) and body size (small, large; P <0.01).
Figure 1 in Variations in trophic niches of generalist predators with plant community composition as indicated by stable isotopes and fatty acids
Figure 1. Variations in δ15N and δ13C signatures of Harpalus rufipes (black) and Trochosa ruricola (pink) across the study site of the Jena Experiment.
Figure 3 in Variations in trophic niches of generalist predators with plant community composition as indicated by stable isotopes and fatty acids
Figure 3. Principal components analysis of the relative abundance (mol %, logit-transformed) of individual NLFAs of Harpalus rufipes using flooding index (FI), plant species richness (SR), plant functional group richness (FG), presence of grasses (Gr), legumes (Leg), small herbs (SH) and tall herbs (TH) as supplementary variables.
Figure 6 in Variations in trophic niches of generalist predators with plant community composition as indicated by stable isotopes and fatty acids
Figure 6. Principal components analysis of the relative abundance (mol%, logit- transformed) of individual PLFAs of soil microorganisms using flooding index (FI), plant species richness (SR), plant functional group richness (FG), presence of grasses (Gr), legumes (Leg), small herbs (SH) and tall herbs (TH) as supplementary variables.
Figure 2 in Variations in trophic niches of generalist predators with plant community composition as indicated by stable isotopes and fatty acids
Figure 2. Variations in δ15N signatures of Harpalus rufipes (P <0.01, R2 = 0.11) as affected by plant species richness (log-transformed).
Figure 2 in Trophic breadth niche, prey preference and developmental time of a Balaustium sp. (Acari: Erythraeidae) from Argentina
Figure 2. Ordination diagram of principal components analysis showing the distribution of preys consumption by larvae, deutonymphs, and adults of Balaustium sp. Positions of the arrows relative to Axes 1 and 2 indicate how strongly independent variables are correlated with each axis, and therefore how related variables are to the pattern of preys consumption by Balaustium sp.
Figure 1 in Trophic breadth niche, prey preference and developmental time of a Balaustium sp. (Acari: Erythraeidae) from Argentina
Figure 1. Developmental stages of Balaustium sp. – A. Eggs; B. Deutova; C. Larva; D. Protonymph: E. Deutonymph; F. Tritonymph; G. Adult.
Figure 5 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 5. Stable isotope values of pseudoscorpion species in different land-use systems; means with standard deviation. Dashed horizontal lines represent estimated trophic level boundaries; trophic level 1 (plant material) not shown. Decomposers feeding on detritus (trophic level 2) were assumed to be enriched in 15N by 1.7 ‰ compared to leaf litter, each following trophic level was assumed to span 3.4 ‰ (Post 2002; Potapov et al. 2019a). For abbreviations see Table 1.
Figure 3 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 3. Bootstrap species accumulation curve based on the number of adult individuals in the studied land-use systems.
Figure 4 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 4. Venn diagram of the species composition in the three land-use systems studied (rainforest, rubber, oil palm) in the Bukit Duabelas (left) and Harapan landscape (right). Landscape-specific species are underlined in red. The riparian-specific species in Harapan is underlined in cyan. For abbreviations see Table 1.
Figure 2 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 2. Density of pseudoscorpions in litter and soil of the three land-use systems studied (rainforest, rubber, oil palm) in the Bukit Duabelas and Harapan landscape. Each data point represents one sampling plot (three pooled subplot samples). Only non-riparian sites are shown.
Figure 1 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 1. Four species of pseudoscorpions found at the study sites. From left to right: Atemnidae sp.1, Lagynochthonius sp.1, Atemnidae sp.2, Hya minuta.
Figure 1 in Trophic niche of cave populations of Speleomantes italicus
Figure 1. Graphic representation of the diet strategy of the Speleomantes italicus studied population. Numeric and volumetric data are represented by solid and empty circles, respectively. The position of the prey taxa is interpreted considering three directrices in the plot: from top to bottom is the alimentary strategy (specialization versus generalization); the first diagonal (/) represents prey importance (dominant versus rare); on the second diagonal axis (\) niche breadth is displayed (high diversity among individuals versus high diversity within individual and tendency towards the same resource use). Some food categories with low values of Pi and frequency of occurrence are not labelled. ACA, Acari; AMP, Amphipoda; ARA, Araneae; CAD, Coleoptera (adults); CLA, Coleoptera (larvae); COL, Collembola; COP, Copepoda; DAD, other Diptera (adults); DIP, Diplopoda; DLA, Diptera (larvae); DLM, Diptera Limnobiidae; DSC, Diptera Sciaridae; GAS, Gastropoda; HFR, Hymenoptera Formicidae; HOM, Homoptera; HYM, Hymenoptera; ISO, Isopoda; LLA, Lepidoptera (larvae); NEM, Nematoda; OLI, Oligochaeta; ORT, Orthoptera; TRI, Trichoptera.
Рис. 2. Ширина трофической ниши паукообразных в биотопах трех типов: I – поΛупустынная равнина; II – каменистые скΛоны пΛато; III – ΔоΛина со скопΛениями скаΛьных останцев. Fig. 2. The width of the trophic niche of arachnids in biotopes of three types: I – semidesert plain; II – stony slopes of the plateau; III – valley with clusters of rocks. in Comparison of trophic spectra and hunting strategies of some large arachnids (Arachnida: Scorpiones, Solifugae, Aranei) in semi-desert biocenoses of Gobustan (Eastern Azerbaijan)
Рис. 2. Ширина трофической ниши паукообразных в биотопах трех типов: I – поΛупустынная равнина; II – каменистые скΛоны пΛато; III – ΔоΛина со скопΛениями скаΛьных останцев. Fig. 2. The width of the trophic niche of arachnids in biotopes of three types: I – semidesert plain; II – stony slopes of the plateau; III – valley with clusters of rocks.
FIGURE 2 in Trophic niche size and overlap in temperate forest land snails are affected by their lifestyle and body size
FIGURE 2 Variation in SEAc of land snail species from the four studied assemblages in relation to their lifestyle (a) and body size (b). Variation in percentages of overlapping SEAc for pairwise species combinations are compared between study sites (c) and three types of lifestyle (d). Different letters refer to significant differences at p<0.0, tested by GEE (a, b) and GLM-qp (c, d). The central line of each box refers to the median value, box height to the interquartile range, whiskers to the non-outlier range (i.e., 1.5 times the interquartile range at each side), and small circles to outliers.
FIGURE 1 in Trophic niche size and overlap in temperate forest land snails are affected by their lifestyle and body size
FIGURE 1 Isotopic niches represented by Standard ellipse area corrected for small sample size (SEAc) of the land snail species collected in four study sites (A, B, C, D) at least in five individuals per site.
Data from: Ecological responses of <em>Orientallactaga sibirica</em>: Variations in body size and trophic niche across changing habitats
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Data from: Trophic niche drives the evolution of craniofacial shape in Trinidadian guppies
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