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21 results for “Sylvia”
Text-fig. 8. Tarsometatarsi of fossil and Recent Sylvioidea. a – PIN, № 5528/3 from Volchaya Balka; b – PIN № 5528/4 from Volchaya Balka; c – Sylvia intermedia KESSLER, 2013; d – Sylvia borin (BODDAERT, 1783). a1–d1 – dorsal view; a2–d2 – plantar view; a3–d3 – distal view. Scale bars 1 mm. in Late Miocene (Early Turolian) Vertebrate Faunas And Associated Biotic Record Of The Northern Caucasus: Geology, Taxonomy, Palaeoenvironment, Biochronology
Text-fig. 8. Tarsometatarsi of fossil and Recent Sylvioidea. a – PIN, № 5528/3 from Volchaya Balka; b – PIN № 5528/4 from Volchaya Balka; c – Sylvia intermedia KESSLER, 2013; d – Sylvia borin (BODDAERT, 1783). a1–d1 – dorsal view; a2–d2 – plantar view; a3–d3 – distal view. Scale bars 1 mm.
Data and R code from: Haemosporidian infections influence risk-taking behaviours in young male blackcaps Sylvia atricapilla
<p>This repository contains all data and code necessary to reproduce the results and figures of the paper:</p> <p>Remacha, C., Ramírez, A., Arriero, E. and Pérez-Tris, J. 2023. Haemosporidian infections influence risk-taking behaviours in young male blackcaps <em>Sylvia atricapilla</em>. Animal Behaviour, 196, 113-126. <a href="https://doi.org/10.1016/j.anbehav.2022.12.001">https://doi.org/10.1016/j.anbehav.2022.12.001</a></p> <p>The repository contains a readme file (README_SYAT_MS_ANIBEH_Scripts.txt) with a description of the code and the data. The code is organised in eight R script files. Instructions to run the code are provided in the readme file. The data are organised in two separate files. One file (SYAT_MS_BH_ANIBEHdata.txt) contains data of exploratory and antipredatory behaviours of 43 young male blackcaps. The other one (SYAT_MS_BH_BIOL_ANIBEHdata.txt) contains biological and experimental attributes of the same individuals: status and intensity of parasite infection, experimental treatment, morphology and body mass.</p>
Curruca cabecinegra (Sylvia melanocephala)
**Ejemplar**: *Sylvia melanocephala* **Nombre común**: Curruca cabecinegra. **Descripción**: Cráneo con pico fino y alargado que permite atrapar con precisión artrópodos. Bastante generalista en cuanto a la selección de hábitats, prefiere zonas arbustivas, de matorral o de árboles frutales. **Sigla museo, colección y entidad**: VER0000634. Colección del Dpto. de Zoología (Facultad Ciencias Biológicas). MUVHN. **Técnica digitalización/modelo**: escaneado superficial 3D Einscan Pro. **Software empleado**: einscan v3.1.0.2, modo manual con plataforma giratoria, calidad media. **Autor digitalización**: Natalia Conejero-Ortega. **Cita ejemplar**: modelo 3D Colección cráneos de aves del Dpto. de Zoología. Museo Universitat de València de Historia Natural (MUVHN).  VER0000019. Ejemplar macho taxidermizado de la misma especie. Colección Histórica de Aves (MUVHN). Previo 1950 Source: Objaverse 1.0 / Sketchfab
Evolutionary patterns in Sylvia curruca complex species
<p class="BodyA">Determining the limits of species is still a major area of contention, particularly when diagnostic differentiating characters are subtle and there is a contradiction between morphological and genetic data. The Lesser Whitethroat (LWT) complex <em>Curruca</em> <em>curruca</em> represents an interesting study system to address this issue. Here, we use phylogeny-, admixture- and principal component analysis- (PCA-) based analyses on whole-genome sequence data of the parapatric LWT taxa <em>C. c. curruca, C. c. halimodendri,</em> <em>C. c. zagrossiensis</em> and <em>C. c. althaea</em> to investigate the prevalence and importance of gene flow in a geographical area where morphological evidence suggests a clinal transition between populations. The results suggest that LWT populations of the Zagros Mts <em>zagrossiensis</em> may represent a lineage historically diverged from topotypical <em>curruca</em>, the two lineages later coming into secondary contact with extensive gene flow as a result. There is no evidence of a hybrid zone or cline between <em>zagrossiensis</em> and althaea in the Zagros Mts. On the other hand, there is evidence for gene flow between <em>althaea</em> and <em>halimodendri</em>. The results also show possible evidence of admixture from other populations in the LWT complex, extralimital to the sampled area, but the nature of this needs to be evaluated based on a larger data set.</p>
Evolutionary patterns in Sylvia curruca complex species
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Data from: February precipitation in the wintering grounds of the lesser whitethroat, Sylvia curruca: is it a cue for migration onset?
Numerous studies report shifts in bird migration phenology, presumably owing to global warming. However, most studies focus on migration patterns in the Northern Hemisphere. In this study, we investigated associations between weather conditions in African wintering grounds of the lesser whitethroat, Sylvia curruca, and spring arrival time in Eilat, Israel. Using multivariate regression models, we analysed a 30-year dataset in order to examine correlations between median springtime arrival and 46 climate variables of the wintering quarters. The model obtained exhibited a highly statistical fit, involving mean precipitation in February and March with negative effects and number of wet days during November–February. February precipitation levels were also the major factor associated with the interquartile range of arrival time. Interestingly and contrary to published results, annual or seasonal precipitation showed no correlation with spring arrival time, nor did temperature. Moreover, winter in this region falls into dry season with negligible rainfall quantities. Hence, it is unlikely that precipitation effect on habitat productivity is a driving force of migration, as suggested by other studies. Instead, we propose that precipitation in February acts as a cue for the birds, indicating the approach of spring and migration time.
Figure 5 in Genetic and morphometric variation of the Blackcap (Sylvia atricapilla) on the Azores Archipelago reveals a recent range expansion
Figure 5. Morphological data: plot of the canonical discriminant analysis centroids (mean ± SD) of root 1 vs root 2 scores with the percentage of variance explained by each root. Axis units are scaled to the ratio of proportion of variance described by the roots. COR – Corvo; FLO – Flores; FAI – Faial; PIC – Pico; SJO – São Jorge; GRA – Graciosa; TER – Terceira; SMI – São Miguel; SMA – Santa Maria.
Figure 4 in Genetic and morphometric variation of the Blackcap (Sylvia atricapilla) on the Azores Archipelago reveals a recent range expansion
Figure 4. Bayesian skyline plot showing changes in effective population size through time (million years ago). Estimations were based on a molecular clock of 2% divergence for one million years. The population size and the generation time is reported on the y-axis. Estimates of means are joined by a solid line; whereas clear lines mark the 95% highest probability density limits.
Figure 2 in Genetic and morphometric variation of the Blackcap (Sylvia atricapilla) on the Azores Archipelago reveals a recent range expansion
Figure 2. Parsimony haplotype networks based on mtDNA (Cytb and Nd2 sequences) and Aco1 nuclear gene sequences of Blackcaps. Each circle represents a haplotype. Dots on lines represent the number of mutational steps between two haplotypes. C – Corvo; F – Flores; L – Faial; P – Pico; J – São Jorge; G – Graciosa; T – Terceira: S – São Miguel; M Santa Maria.
Fig. 4. Altica sylvia. A in Morphological Comparison ofAltica sylviaMalloch, 1919 andMantura chrysanthemi(KOCH, 1803) (Coleoptera: Chrysomelidae: Galerucinae: Alticini), with a Focus on Sexual Dimorphism
Fig. 4. Altica sylvia. A) Elytron showing confused punctation, dorsal view, B) Head and pronotum, lateral view; arrow indicates location of semi-circular patch of deep pronotal punctures, C) Left elytron, lateral view; arrows indicate deep punctures along the lateral margin, D) Deep punctures (arrows) on the lateral margin of the elytron, E) Schematic of elytral measurements; arrows indicate length and width measurements, F) Schematic of pronotal measurements; arrows indicate length and width measurements; deep punctures are visible at the points of the transverse arrow.
Fig. 3. Altica sylvia, abdominal sexual dimorphism. A in Morphological Comparison ofAltica sylviaMalloch, 1919 andMantura chrysanthemi(KOCH, 1803) (Coleoptera: Chrysomelidae: Galerucinae: Alticini), with a Focus on Sexual Dimorphism
Fig. 3. Altica sylvia, abdominal sexual dimorphism. A) Female fifth abdominal ventrite, ventral view; arrows indicate posterior (P) and lateral (L) orientation, B) Male fifth abdominal ventrite; arrows indicate posterior (P) and lateral (L) orientation and grooves (G) in the posterior margin of the ventrite, C) Male displaying lobate fifth abdominal ventrite and exposed aedeagus, D) Female rounded fifth abdominal ventrite with exposed styli (S); arrows indicate lateral (L) and posterior (P) orientation, E) Aedeagus, ventral view; arrow indicates nipple-shaped tip, F) Aedeagus, dorsal view; arrow indicates nipple-shaped tip.
Data from: February precipitation in the wintering grounds of the lesser whitethroat, Sylvia curruca: is it a cue for migration onset?
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Figure 3 from: Musfiroh I, Megawati G, Diah Herawati DM, Nama Putra O, Sylvia Nurrasjid E (2023) Molecular dynamic of omega-3 compounds as an anti-obesity agent into GPR-120 receptor. Pharmacia 70(4): 1541-1548. https://doi.org/10.3897/pharmacia.70.e115501
Figure 3 A. Visualization of interactions between docosahexaenoic acid and receptors (GPR120 (4GRV)) and B. Visualization of molecular docking between the receptor GPR120 (4GRV) and docosahexaenoic acid.
Figure 2 from: Musfiroh I, Megawati G, Diah Herawati DM, Nama Putra O, Sylvia Nurrasjid E (2023) Molecular dynamic of omega-3 compounds as an anti-obesity agent into GPR-120 receptor. Pharmacia 70(4): 1541-1548. https://doi.org/10.3897/pharmacia.70.e115501
Figure 2 A. Visualization of interactions between Neurotensin 8–13 and receptors (4GRV) and B. Visualization of molecular docking between the receptor 4GRV and natural ligand.
Figure 1 from: Musfiroh I, Megawati G, Diah Herawati DM, Nama Putra O, Sylvia Nurrasjid E (2023) Molecular dynamic of omega-3 compounds as an anti-obesity agent into GPR-120 receptor. Pharmacia 70(4): 1541-1548. https://doi.org/10.3897/pharmacia.70.e115501
Figure 1 A. Neurotensin receptor (4GRV) and B. Overlay of the docked pose of Neurotensin 8–13 with the co-crystallized ligand 4GRV.
Figure 4 from: Musfiroh I, Megawati G, Diah Herawati DM, Nama Putra O, Sylvia Nurrasjid E (2023) Molecular dynamic of omega-3 compounds as an anti-obesity agent into GPR-120 receptor. Pharmacia 70(4): 1541-1548. https://doi.org/10.3897/pharmacia.70.e115501
Figure 4 RMSD (a) and RMSF (b) value of docosahexaenoic acid (blue), eicosapentaenoic acid (maroon), and heneicosapentaenoic acid (green).
Figure 5 from: Musfiroh I, Megawati G, Diah Herawati DM, Nama Putra O, Sylvia Nurrasjid E (2023) Molecular dynamic of omega-3 compounds as an anti-obesity agent into GPR-120 receptor. Pharmacia 70(4): 1541-1548. https://doi.org/10.3897/pharmacia.70.e115501
Figure 5 SASA plot of docosahexaenoic acid (blue), eicosapentaenoic acid (maroon), and heneicosapentaenoic acid (green).
Figure. Male Robust Woodpecker Campephilus robustus (Estancia Nueva Gambach/Pro Cosara), June 2011 (Photo: Sylvia Qu). in Dew-bathing in the Atlantic Forest endemic Robust Woodpecker Campephilus robustus (Lichtenstein, 1823) (Aves: Picidae)
Figure. Male Robust Woodpecker Campephilus robustus (Estancia Nueva Gambach/Pro Cosara), June 2011 (Photo: Sylvia Qu).
Figure 1 in Genetic and morphometric variation of the Blackcap (Sylvia atricapilla) on the Azores Archipelago reveals a recent range expansion
Figure 1. Location of the Azores Archipelago and islands isotopic ages.
Feather traits, wing morphology and abundance of southern populations of Sylvia atricapilla related to altitudinal movements
<p>Moult of birds is shaped by environmental and genetic drivers whose relative contribution to the structure of feathers may differ within and between populations. In this study we compare some traits of tail feathers (growth bars, mass, rachis width and barb length) between four populations of the Eurasian blackcap (<i>Sylvia atricapilla</i>) breeding at different elevations within the southwestern Palaearctic. We tested if these traits were related to the primary productivity of habitats (a surrogate of food availability) or were better explained as an adaptation to altitudinal movements. The distribution of primary productivity was positively related to blackcap abundance suggesting that the species tracked the most productive areas to breed. In this environmental setting, wing morphology (wing length, concavity and pointedness) suggested that lowland blackcaps were sedentary while blackcaps from highland areas were involved in altitudinal movements. The feathers of blackcaps inhabiting the highlands showed wider growth bars and rachis than those of the most productive lowland areas, but did not differ in feather mass and barb length. Fast feather growth has been related to time constraints to moult and wider rachis to improve flight efficiency in migratory birds. Our results therefore suggest that differences in feather characteristics between southern populations of the Eurasian blackcap are better interpreted as an adaptive response to altitudinal migration than as a consequence of regional food availability.</p>
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