Silvia Helena Sofia - Academia.edu (original) (raw)

Papers by Silvia Helena Sofia

Science of The Total Environment

FIGURE 1. Sampling location of Aegla buenoi n. sp. (circle) in the city of Ibaiti, Paraná state, ... more FIGURE 1. Sampling location of Aegla buenoi n. sp. (circle) in the city of Ibaiti, Paraná state, Brazil. Dark gray area indicates the Cinzas River basin.

FIGURE 5. Aegla buenoi n. sp., female paratype (MZUEL 245). A, dorsal view of the anterior region... more FIGURE 5. Aegla buenoi n. sp., female paratype (MZUEL 245). A, dorsal view of the anterior region of the cephalothorax and chelipeds showing rudimentary lobe on dorsal margin of the dactylus (arrows). B, dorsal view of dactylus, propodus and carpus of major cheliped (left) showing palmar crest rectangular (arrow). C, dorsal view of dactylus, propodus and carpus of minor cheliped (right) showing palmar crest rectangular (arrow). D, ventral view of major cheliped (left) showing ischium with four tubercles (arrows). Bars = 1 mm.

Aegla buenoi Marçal & Teixeira n. sp. (Figs 3–5) urn:lsid:zoobank.org:... more Aegla buenoi Marçal & Teixeira n. sp. (Figs 3–5) urn:lsid:zoobank.org:act: F032E974-6EDE-4BA5-8577-17207631A62 Type-material. Holotype: male, Brazil, Paraná, Ibaiti, Paranapanema River basin, Cinzas River sub-basin, Carneiro stream, 23°57′19.71″S, 50°14′16.09″W, altitude 656 m, C.A. da Silva, R.H.C. do Nascimento and R. Rockembacher coll., 17.v.2016 (MZUEL 249). Paratypes: 1 male and 2 females, same data as holotype (MZUEL 245). 3 males and 2 females, Brazil, Paraná, Ibaiti, Paranapanema River basin, Cinzas River sub-basin, tributary of the Carneiro stream, 23°57′27.00″S, 50°14′5.00″W, altitude 620 m, G.M. Teixeira and J.J.S. Rosa coll., 12.vi.2017 (MZUEL 246, genetic vouchers: BOLD access AEGPR016-18, AEGPR017-18, AEGPR018-18, AEGPR019-18, AEGPR020-18). Type-locality. Carneiro stream, city of Ibaiti, Paraná state, Brazil. Geographical distribution. The new species has been collected in two streams within the Cinzas River subbasin, Paranapanema River basin. Both streams are located in the city of Ibaiti, Paraná state, Brazil. Diagnosis. Rostrum triangular, narrow base, reaching distal apex of compound eyes, carinate. Subrostral process well developed, occupying proximal half of subrostral margin, anterior and posterior margins forming obtuse angle (122°). Extra-orbital sinus deep. Anterolateral spines not reaching basal margin of cornea. Epigastric prominences pronounced and oval. Protogastric lobes pronounced. Cervical groove U-shaped. Cardiac area subrectangular. Proximal dorsal margin of dactylus with rudimentary or absent lobe. Palmar crest disciform, outer surface excavated. Subterminal lobe of carpus well defined, pointed. Ventromesial border of cheliped ischium with 4 or 5 tubercles. Anteromesial region of third thoracic sternite tapered. Anterior angle of second abdominal epimeron and ventral angles of third and fourth abdominal epimeron with corneous scale apically. Anterior margin of second abdominal epimeron almost straight. Uropods wide. Descript [...]

Based on microsatellite markers and non-lethal sampling of orchid bee males, we assessed the gene... more Based on microsatellite markers and non-lethal sampling of orchid bee males, we assessed the genetic diversity and population structure of three species, Euglossa pleosticta, Euglossa imperialis, and Eulaema nigrita, collected from forest remnants in the Brazilian savanna biome. Among these species, El. nigrita has being acknowledged as more tolerant to savanic areas, since it is more frequently found in these habitats than the other two species. Thus, we hypothesized that species more associated with forest areas would show lower levels of genetic diversity and higher levels of population structure, since open areas could represent a barrier to the movement of these species. We observed lower levels of genetic diversity (HE) in the species highly associated with forest areas (Eg. pleosticta, HE = 0.66; Eg. imperiali...

FIGURE 7. Box plot of color pattern classes (Phenotypes I, II and III) by standard length (a, b, ... more FIGURE 7. Box plot of color pattern classes (Phenotypes I, II and III) by standard length (a, b, and c referring to significant differences as eVidenced by ANOVA).

FIGURE 5. Scatter plot of indiVidual scores from the combined samples of Trichomycterus davisi ph... more FIGURE 5. Scatter plot of indiVidual scores from the combined samples of Trichomycterus davisi phenotypes of the Ribeirão João Pinheiro in the first three axes of the Principal Component Analysis (PCA). Phenotype I (open squares), Phenotype II (filled squares), and Phenotype III (crosses).

FIGURE 1. Location of sampling area in the Ribeirão João Pinheiro, 24 ° 16 ' 41 " S, 050... more FIGURE 1. Location of sampling area in the Ribeirão João Pinheiro, 24 ° 16 ' 41 " S, 050 ° 35 ' 12 " w, Fazenda Monte Alegre Ecological ReserVe, Telêmaco Borba (yellow diamond) and Ribeirão Macaquinho, 25 ° 38 ' 34 " S, 049 ° 35 ' 24 " w, Serrinha, Município de Contenda, near the type locality of Trichomycterus davisi (yellow star), state of Paraná, Brazil.

FIGURE 6. Aegla okora n. sp., male holotype, CLE 21.3 mm (MZUEL 250). A, Ventral view of ischium ... more FIGURE 6. Aegla okora n. sp., male holotype, CLE 21.3 mm (MZUEL 250). A, Ventral view of ischium of major cheliped. B, Ventral view of ischium of minor cheliped. C, Dorsal view of second abdominal epimeron. D, Uropods and telson. Note: A and B, tubercles on cheliped ischium (arrows); C, anterolateral angle of second abdominal epimeron unarmed (arrow).

FIGURE 4. Aegla okora n. sp., male holotype, CLE 21.3 mm (MZUEL 250). A, Dorsal view of the anter... more FIGURE 4. Aegla okora n. sp., male holotype, CLE 21.3 mm (MZUEL 250). A, Dorsal view of the anterior region of the cephalothorax. B, Lateral view of the anterior portion of the cephalothorax. C, Dorsal view of the carapace. D, Third and fourth thoracic sternites. Note: A, anterolateral spine reaching basal margin of cornea (thin arrow) and rostral carina (thick arrow); B, protogastric lobes pronounced (arrow); C, cervical groove U-shaped (thin arrow) and trapezoidal areola (thick arrow).

FIGURE 2. Aegla okora n. sp., male holotype, CLE 21.3 mm (MZUEL 250). A, Dorsal view of cephaloth... more FIGURE 2. Aegla okora n. sp., male holotype, CLE 21.3 mm (MZUEL 250). A, Dorsal view of cephalothorax and anterior portion of abdomen. B, Third and fourth thoracic sternites. C, Ischium of major cheliped (left). D, Ischium of minor cheliped (right). E, Dorsal view of second abdominal epimeron. Bars: A = 5.0 mm; B–E = 1.0 mm.

Zootaxa, 2021

A new species of freshwater anomuran crab, Aegla buenoi n. sp., is described. The new taxon was c... more A new species of freshwater anomuran crab, Aegla buenoi n. sp., is described. The new taxon was collected from two streams within the Cinzas River basin, Paraná state, Brazil. We used morphological and molecular data (COI mtDNA) to distinguish the new species from its congeners. Aegla buenoi n. sp. is differentiated by morphological diagnostic features of the cephalothorax, chelipeds, second abdominal epimeron, and uropods. Molecular results confirm the separation of A. buenoi n. sp. from closely related species (A. castro Schmitt, 1942, A. lata Bond-Buckup & Buckup, 1994, and A. jacutinga Marçal & Teixeira, 2020). Hence, our study increases the known diversity of aeglids and reports the first species of Aegla from the Cinzas River basin.

Science of The Total Environment, 2021

Glyphosate (GLY) is an herbicide widely used in agriculture. First considered as non-toxic or sli... more Glyphosate (GLY) is an herbicide widely used in agriculture. First considered as non-toxic or slightly toxic to bees, GLY and its different formulations have shown, more recently, to affect negatively the survival, development and behavior of these insects, even when used in doses and concentrations recommended by the manufacturer. Thus, the results of research on the toxicity of GLY to bees are often conflicting, which makes a meta-analysis interesting for data integration, generating a statistically reliable result. Therefore, this study aimed to evaluate the GLY effects on mortality of bees through a meta-analysis. For this, a search was carried out in the databases Web of Science, CAPES (Coordination for the Improvement of Higher Education Personnel - Brazil), Scopus, and PubMed. Papers that evaluated the effect of GLY on bee mortality published between 1945 and October 2020, were considered. After obtaining the data, R software was used to perform the meta-analytical tests. Sixteen papers on mortality were selected with 34 data sets. Most of the sets demonstrated differences between the control and experimental groups, showing that the treatments with GLY caused higher mortality of bees. The results considering the methodology used (ingestion or contact), the phase of the biological cycle (adults or larvae), and the dose (ecologically relevant dose and recommended by the manufacturer) were different when compared with their respective control groups. Therefore, GLY can be considered toxic to bees. It is important to emphasize that this meta-analysis identified that papers assessing the toxicity of GLY to bees are still scarce, for both lethal and sublethal effects, mainly for stingless and solitary bee species.

Journal of Crustacean Biology, 2020

Aegla lata Bond-Buckup & Buckup, 1994 is considered extinct in the type locality. New populations... more Aegla lata Bond-Buckup & Buckup, 1994 is considered extinct in the type locality. New populations of this species, however, have been found in northern Paraná state, Brazil. We revised the taxonomy of A. lata based on morphological data obtained from the type material and specimens recently obtained from streams of the Tibagi River sub-basin, Paranapanema River basin, Upper Paraná Ecoregion. Moreover, Aegla jacutingan. sp. is described and illustrated. The new species resembles A. lata in the shapes of the body and chelipeds. Both species are nevertheless separated by particular morphological characters of the carapace, chelipeds, and epimeron as well as by molecular (COI mtDNA) differences. Both species can be distinguished from their congeners based on morphological and molecular evidence.

Journal of Apicultural Research, 2020

Entomologia Experimentalis et Applicata, 2018

The Neotropical brown stink bug, Euschistus heros (Fabricius) (Hemiptera: Pentatomidae), is a maj... more The Neotropical brown stink bug, Euschistus heros (Fabricius) (Hemiptera: Pentatomidae), is a major Brazilian soybean pest. Aiming to provide relevant information to implement pest and insecticide resistance management, new microsatellite loci were developed for E. heros and used in a study of genetic diversity and population structure. The population analysis was performed using eight microsatellite loci from 17 samples (n = 243 individuals) collected in the major soybean‐producing regions in Brazil (northeastern, midwestern, and southern regions). These microsatellite loci provided high genetic diversity values on the whole extension for the studied region (He = 0.895; total number of alleles = 400). Neotropical brown stink bug populations in general displayed low genetic structure levels among the samples (overall ΦST = 0.009). An exception was the sample from the northeastern region, which showed a significant genetic differentiation (pairwise ΦST = 0.031–0.063). Bayesian cluste...

Zootaxa, 2018

A new species of aeglid crab, Aegla okora n. sp., is described. This species was found in the Igu... more A new species of aeglid crab, Aegla okora n. sp., is described. This species was found in the Iguaçu River basin in Paraná state, southern Brazil. Aegla okora n. sp. was discriminated based on morphological and molecular data (mitochondrial COI). Morphologically, the new species differs from congeners of the same river basin by the presence of a trapezoidal areola and the ventromesial border of the ischium having three tubercles, besides other exclusive additional morphological characteristics. Molecular results demonstrated that there is no overlap between the intraspecific distances of Aegla okora n. sp. and the interspecific distance of other species of Aegla added to the analysis, confirming the separation of species and increasing the known diversity of the Iguaçu River basin.

Journal of Natural History, 2017

Reviews in Fish Biology and Fisheries, 2016