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opencc-by-4.0Jul 2019View details →

Fig. 4 in Intraspecific Morphological Variation In Free- Living Stages Of Strongyloides Papillosus (Nematoda, Strongyloididae) Parasitizing Various Mammal Species

Fig. 4. Third-stage larva of S. papillosus: a — general view; b — anterior part (the pointer indicates the place where the esophagus joins the intestine); c — posterior part; scale bars 100 µm.

opencc-by-4.0Jul 2019View details →

Fig. 1 in Intraspecific Morphological Variation In Free- Living Stages Of Strongyloides Papillosus (Nematoda, Strongyloididae) Parasitizing Various Mammal Species

Fig. 1. Rhabditiform larvae of S. papillosus: a — L1 from C. hircus (arrowheads indicate the bulb-like dilatations on the esophagus and the tail); b — L1 from O. hircus (arrowheads indicate bulb-like dilatations on the esophagus and the tail); c — L2 from C. hircus (arrowheads indicate two bulb-like dilatations); scale bars 100 µm.

opencc-by-4.0Aug 2022View details →

The research of River Morphology transition and Sediment variation: Shule River, Northwest of China

<p>The data acquisition in this study is mainly divided into two parts: indoor statistics and field measurements to obtain. In the indoor work, satellite image data and radar digital elevation data were primarily used to measure and count the river width (Fig.1c), sinuosity, gradient, and elevation every 500m along the top of the Shule River downward (Tab.1). The river width was calculated as the distance between the outer banks, measured at a 90° angle to the river axis, including the channel bar and point bar (Mcglue et al., 2016). The classification of river morphology is mainly based on the size of sinuosity (Rust, 1978). The sinuosity greater than 1.5 is defined as a meandering river, and less than 1.5 is defined as a braided river (Fig.1c). The river gradient is counted for every two adjacent measurement points. According to the above measurement criteria, there are 237 river morphology data within the alluvial fan of the Shule River (Tab.1).</p> <p>In the field measurement process, due to the limited accuracy of satellite images in portraying river morphology. We also use UAV aerial photography to refine further the river's morphological characteristics based on satellite images, which mainly included the channel bar and point bar description. Under the guidance of sedimentological theory, we measured and sampled the gravel in the modern riverbed of Shule River (Fig.2). By measuring the grain size and orientation parameters of gravel(Fig.2a), we research the refinement characteristics of sediments from the apex to the toe (Folk, 1954). Among them, gravel grain size and orientation were measured by the quantitative characterization method of gravel orientation proposed by Huang YuanGuang et al. (Fig.2a, b), and grain size was determined by the long flat axis of gravels (Huang et al., 2018), gravel orientation was measured by the rose diagram of the relative apparent dip (Fig.2b) (Huang et al., 2018; Tao et al., 2018). A total of five gravel statistical points were included within the alluvial fan of the Shule River, and a total of 1862 gravel grain size parameters were measured (Tab.2). We also use the hand-hold X-ray fluorescence spectrometer to measure the element characteristics of each sampling point (Fig.2c, d; Tab.3), which uses intelligent one-button testing and intelligent judgment functions for elements between atomic numbers 12-92 (Mg-U) (Fig.2e; Tab.3).</p>

opencc-by-4.0Apr 2020View details →

Figure 1. Frogs were collected from 3 in A procedure for taxon assessment based on morphological variation in European water frogs (Pelophylax esculentus complex)

Figure 1. Frogs were collected from 3 different localities in South Banat, Serbia: 1) Stevanove ravnice, within the Special Nature Reserve "Deliblatska peščara" (44°49′57.8″N 21°18′33.1″E, 44°50′14.3″N 21°18′14.0″E), 2) Canal Banatska Palanka – Novi Becej (44°51′14.4″N 21°18′17.8″E).; 3) Canal Jaruga in the peripheral zone of the protected natural landscape "Karaš-Nera" (44°52′30.8″N 21°28′16.0″E).

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Figure 2b in A procedure for taxon assessment based on morphological variation in European water frogs (Pelophylax esculentus complex)

Figure 2b. Individual scores resulting from FAMD plotted on the first 2 dimensions. Clusters derived from the hierarchical clustering on principle components (HCPC) are superimposed onto the ordination.

Fig. 10 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 10. Comparative dimensional proportions of various species of Oecoptychius Neumayr, 1878. Shaded areas display the range of variation in dimensional proportions.

Fig. 8 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 8. Strigoceratid ammonoid Oecoptychius refractus (Reinecke, 1818) m], SMNS 63457/1, from Ornatenton Formation, Kosmoceras jason Zone, Neidlingen, SW Germany, middle Callovian, Middle Jurassic. Note the strigations, a character noted only in well-preserved specimens and reminiscent of species attributed to Phlycticeras polygonium (Zieten, 1831) var. waageni [M] and considered herein to represent macroconch of O. refractus Reinecke, 1818).

Fig. 6 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 6. Strigoceratid ammonoid Oecoptychius refractus (Reinecke, 1818) [m] from Ogrodzieniec quarry, Quenstedtoceras lamberti Zone, upper Callovian. A. GIUS 8-3657/12 in lateral (A1), dorsal (A2), and dorsal (A3, note the ribbing pattern) views. B. GIUS 8-3657/5 in lateral (B1) and ventral (B2, B3, note the ribbing pattern) views. C. GIUS 8-3657/3 11 in lateral (C1), opposite lateral (C2), and ventral (C3) views. D. GIUS 8-3657/4 in lateral (D1), opposite lateral (D2), and ventral (D3, D4, note the ribbing pattern) views.

Fig. 5 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 5. Strigoceratid ammonoid Oecoptychius refractus (Reinecke, 1818) [m] from Ogrodzieniec quarry, Quenstedtoceras lamberti Zone, upper Callovian. A. GIUS 8-3657/9 in lateral (A1), dorsal (A2), ventral (A3), and dorsal (A4, note the ribbing pattern) views. B. GIUS 8-3657/10 in ventral view. C. GIUS 8-3657/11 in lateral (C1), opposite lateral (C2), ventral (C3), and dorsal (C4) views. D. GIUS 8-3657/2 in lateral (D1), opposite lateral (D2), ventral (D3), and dorsal (D4) views.

Fig. 4 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 4. Strigoceratid ammonoid Oecoptychius refractus (Reinecke, 1818) [m] from Ogrodzieniec quarry, Quenstedtoceras lamberti Zone, upper Callovian. A. GIUS 8-3657/1 in lateral (A1), opposite lateral (A2), ventral (A3), and dorsal (A4) views. B. GIUS 8-3657/6 in lateral (B1) and ventral (B2) views. C. GIUS 8-3657/7 in lateral view (C1), detail showing the smooth umbilical region (C2), opposite lateral (C3) and dorsal (C4) views. D. GIUS 8-3657/8 in lateral (D1), opposite lateral (D2), ventral (D3), and dorsal (D4) views.

Fig. 2 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 2. Lithostratigraphy and biostratigraphy at the Ogrodzieniec quarry (modified after Dembicz et al. 2006). Arrow shows the occurrence of Oecoptychius refractus (Reinecke, 1818) within the general stratigraphy of the Ogrodzieniec quarry. Bed numbers (1, 1a, 2, 3, 18, and 37) after Dembicz et al. (2006).

Fig. 9 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 9. Dimensional proportions of Oecoptychius refractus (Reinecke, 1818) [m]. The French and Polish specimens are compared with a reference point of the lectotype. A. Whorl height vs. shell diameter. B. Whorl thickness vs. shell diameter. C. Umbilicus vs. shell diameter. D. Whorl thickness vs. coiling ratio. For all given dimensional proportions, the French and Polish specimens form different groups.

Fig. 1. Geological map and the abandoned Ogrodzieniec quarry. A in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 1. Geological map and the abandoned Ogrodzieniec quarry. A. Map showing the studied localities in Poland, western France, and Kachchh (western India). B. Map of France showing the position of St.-Laon and Montreuil-Bellay. C. Map of India showing the position of Kachchh. D. Map of Poland showing the the position of Ogrodzieniec. E. Detailed location of Ogrodzieniec quarry (modified after Jain and Mazur 2021). F. Geological map of the Polish Jura Chain showing the location of the studied Ogrodzieniec quarry. G. Aerial view of the Ogrodzieniec quarry; arrow marks the location of the studied section. H. Exposure of the studied section.

Fig. 3 in Morphological variations and geographic distribution of the rare Middle Jurassic ammonite Oecoptychius refractus

Fig. 3. Biostratigraphy of the studied section. A. Geological column, correlation of studied beds with these of Głowniak (2012) and the occurrence of specimens noted in the present study (modified after Jain and Salamon 2023). B. Field photo of the condensed bed where the studied specimens of Oecoptychius refractus (Reinecke, 1818) [m] were recorded. C. Close-up of the block with Quenstedtoceras lamberti (Q) and Hibolithes hastatus (H).

Fig. 4 in Determination Of Sexual Dimorphism And Morphological Variation Of Pool Barb, Puntius Sophore (Cypriniformes, Cyprinidae), Using Landmark Based Geometric Morphometric Analysis

Fig. 4. Change of body shape along principal component axis (PC 1 = 43.827 %, and PC 2 = 20.578 %). Left side is the lollipop plots. Right side is the transformation grids of shape change.

Fig. 3, a in Determination Of Sexual Dimorphism And Morphological Variation Of Pool Barb, Puntius Sophore (Cypriniformes, Cyprinidae), Using Landmark Based Geometric Morphometric Analysis

Fig. 3, a — eigenvalues plot of the proportion of variance described by each PC, b — scatter plot showing scores on the first two PCs for the sample of non-breeding season and breeding season fish population (female in red, male in blue and non-breeding season population in green).

Fig. 1, a in Determination Of Sexual Dimorphism And Morphological Variation Of Pool Barb, Puntius Sophore (Cypriniformes, Cyprinidae), Using Landmark Based Geometric Morphometric Analysis

Fig. 1, a — male individual in breeding season; b — digitized image of P. sophore with the 14 landmarks (red points) used for the geometric morphometric analysis: c — scatter plot of 14 landmarks configurations after Procrustes Superimposition.

Fig. 2 in Determination Of Sexual Dimorphism And Morphological Variation Of Pool Barb, Puntius Sophore (Cypriniformes, Cyprinidae), Using Landmark Based Geometric Morphometric Analysis

Fig. 2. Distribution of non-breeding season population and the breeding season (male and female) population along first and second canonical variate axes (female in red, male in blue and non-breeding season population in green).

FIGURE 9 in Morphological variation during post-embryonic development in the centipede Lithobius melanops: traditional and geometric morphometrics approaches

FIGURE 9 Centroid size differences of (A) The forcipular apparatus; (B) The cephalic capsule; and (C) The ultimate leg among epimorphic groups. The median with the first and third quartiles is shown (in boxes), together with the range of variation and outliers.

FIGURE 8 in Morphological variation during post-embryonic development in the centipede Lithobius melanops: traditional and geometric morphometrics approaches

FIGURE 8 Centroid size differences of (A, B) The forcipular apparatus; (C, D) The cephalic capsule; and (E, F) The ultimate leg among sexes in praematurus (left) and maturus (right) epimorphic groups. The median with the first and third quartiles is shown (in boxes), together with the range of variation and outliers.