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43 results for “Chapada dos Guimarães”

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Fig. 7 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 7. Quantitative analyses of the female gonads. (A) Variation in gonadosomatic ratio (GSR) over the months (F = 24.885, p <0.001), (B) variation in the number of mature oocytes in each month (F = 6.746, p <0.001) and (C) plot of germ cells proportion monthly, indicating that they are more able to reproduce from October to March.

opencc-by-4.0Mar 2013View details →
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Fig. 6 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 6. Annual reproductive cycle of female April/2010 (A) to March/2011 (L), stained with toluidine blue-borax, in which ovarian development was seen more frequently from May to September, the stage of able to spawn from October to March and the stage regression from February to April. The regeneration step was not observed in females. Early oocytes (Eo), pre-vitellogenic oocytes (Pvo), vitellogenic oocytes (Vo), mature oocytes (Mo), post-ovulatory complexes (POC) and atresias (As).

opencc-by-4.0Mar 2013View details →
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Fig. 5 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 5. After spawning, there is observed, stained with toluidine blue-borax, (A) post-ovulatory complexes (POC) consisting of cells that made up the follicle and that remain after the release of the oocyte, and (B) early (Ea) and advanced (Aa) atretic processes, which go through stages of degeneration and resorption.

opencc-by-4.0Mar 2013View details →
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Fig. 3 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 3. In the ovaries, stained with toluidine blue-borax, (A) there is the gonoduct, as indicated by the arrow; (B) the germinal epithelium, which presents: somatic cells that stand out of the germinal epithelium and will be the pre-follicular cells (Pf) to accompany the nest of oogonia (circle); (C) some oogonia begin the process of differentiation through meiosis, forming early oocytes (Eo) that stand out from the nest being involved in pre-follicular cells (Pf) characterizing the initial ovarian follicle (black circle), after then other cells come around forming the internal theca (It) and external theca (Et), forming the follicular complex (white circle); (D) the oocyte gives rise to a new stage of growth, the pre-vitellogenic one with the arising of nüages (Ng), multiple nucleoli (No) and the Balbiani corpuscles (Bc); (E) it is possible to observe the anterior structures in greater detail and also the layers of the follicular envelope, which comprises the components of theca (T), a layer of follicular cells (Fc), the basal membrane (Bm) and a pellucid zone (Pz); (F) this zone is composed by small microvilli (Mv) that protrude on the surface of the oocyte and follicular cells.

opencc-by-4.0Mar 2013View details →
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Fig. 1 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 1. In the testes, stained with toluidine blue-borax, (A) the germinal compartment is digitiform ending in blind bottom and the genesis of the germ cells follows from the distal portion of the lobes to the lumen, as indicated by lines drawn and the arrow, respectively; (B) the interstitial compartment contains blood vessels (Bv), myoid cells (Md), connective tissue (Ct) and Leydig cells (Ld); (C) there are spermatogonia that begin the genesis and form cysts (circle) organized by the Sertoli cells (B - St); (D) this gives rise to the primary spermatocytes (white circle), and then the secondary spermatocytes (black circle); (E) so occurs the formation of the spermatids (circle); (F) and the cysts break to release the spermatozoa (Sz).

opencc-by-4.0Mar 2013View details →
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Fig. 4 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 4. The oocyte growth continues (stained with toluidine blue-borax) so (A-B) the cortical alveoli (Ca) are arranged on the periphery of the oocyte at first and (C-D) become progressively larger forming large vesicles that border the oocyte surface (as indicated by the arrows); (E) beginning the secondary growth of the ovarian follicle, there is a nucleus with grooves (Gr), the nucleoli (No) are installed in these grooves, the yolk (Y) is accumulating and the pellucid zone is becoming thicker (F and G - Pz); (F) acidic polysaccharides toluidine blue metachromatic and PAS positive neutral polysaccharides (circles) (stained with PAS+Hematoxilin+Metanil Yellow) and (G) metachromatic granules in toluidine blue (circle) (stained with toluidine blue-borax) are produced and incorporated into the alveoli; (H-K) so, the yolk keeps accumulating during maturation of the oocyte, as indicated by the arrows, until become a (K) mature oocyte.

opencc-by-4.0Mar 2013View details →
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Fig. 2 in Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil

Fig. 2. Annual reproductive cycle of male from April/2010 (A) to March/2011 (L), stained with toluidine blue-borax, in which gonads presented themselves as able to reproduce in all months of the year. Observe the continuity and discontinuity of cysts. Spermatogonia (Sg), primary spermatocytes (Sc1), secondary spermatocyte (Sc2), spermatid (Sd), spermatozoa (Sz).

opencc-by-4.0Mar 2013View details →
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FIG. 1 in New lichen species and records from the Chapada dos Guimarães, Mato Grosso, Brazil

FIG. 1. — Astrothelium muriconicum sp. nov., holotype, habitus. A, in daylight; B, under 365 nm UV light. Width of pictures 30 mm.

opencc-zeroOct 2021View details →
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FIG. 4 in New lichen species and records from the Chapada dos Guimarães, Mato Grosso, Brazil

FIG. 4. — Gassicurtia pruinosa sp. nov., holotype, habitus. A, in daylight; B, under 365 nm UV light. Width of pictures 12 mm.

opencc-zeroOct 2021View details →
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FIG. 3 in New lichen species and records from the Chapada dos Guimarães, Mato Grosso, Brazil

FIG. 3. — Gassicurtia lopesiana sp. nov.,(left) and Gassicurtia pruinosa sp. nov. (right) under 365 nm UV light, A.Aptroot & M.F.Souza 81496. Width of picture 20 mm.

opencc-zeroOct 2021View details →
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FIG. 2 in New lichen species and records from the Chapada dos Guimarães, Mato Grosso, Brazil

FIG. 2. — Gassicurtia lopesiana sp. nov., holotype, habitus. Width of picture 15 mm.

opencc-zeroOct 2021View details →
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FIGURE 6 in Morphometric and bioacoustic data on three species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) described from Chapada dos Guimarães, Mato Grosso, Brazil, with the revalidation of Pseudopaludicola ameghini (Cope, 1887)

FIGURE 6. Geographic distribution (based mostly on bioacoustic evidence; A. Pansonato et al., unpubl. data) of three species of Pseudopaludicola originally described from Chapada dos Guimarães (Mato Grosso, Brazil). Brazil: Pará: Primavera (1); Maranhão: Barreirinha (2); Balsa (3); Ceará: Itapipoca (4); Taiba (5); Rio Grande do Norte: Arês (6); Bahia: Costa Azul/ Jandaíra (7); Busca Vida/Lauro de Freitas (8); Goiás: Uruaçu (09); Mato Grosso: Santa Teresinha (10); Barra do Garças (11); Chapada dos Guimarães, Caverna Aroe Jari (12); Cuiabá (13); Barão de Melgaço (14); Cáceres (15); Vale de São Domingos (16); Vila Bela da Santíssima Trindade (17); Minas Gerais: Uberlândia (18); São Paulo: Icém (19); Mato Grosso do Sul: Três Lagoas (20). Argentina: Corrientes: Ituzaingó (21; see Fig. 177 A,B, in Cei 1980).

opennotspecifiedMar 2013View details →
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FIGURE 1 in Morphometric and bioacoustic data on three species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) described from Chapada dos Guimarães, Mato Grosso, Brazil, with the revalidation of Pseudopaludicola ameghini (Cope, 1887)

FIGURE 1. Live specimens of three species of Pseudopaludicola from the state of Mato Grosso, Brazil. A–B) Pseudopaludicola ameghini [A: amplectant pair from Chapada dos Guimarães; B: adult male (UFMT 13654) from Cáceres]; C–D) Pseudopaludicola mystacalis [C: calling male from Cuiabá; D: adult male (UFMT 6511) from Nossa Senhora do Livramento]; E–F) Pseudopaludicola saltica (adult males from Chapada dos Guimarães).

opennotspecifiedMar 2013View details →
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FIGURE 4 in Morphometric and bioacoustic data on three species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) described from Chapada dos Guimarães, Mato Grosso, Brazil, with the revalidation of Pseudopaludicola ameghini (Cope, 1887)

FIGURE 4. Oscillogram (A) and audiospectrogram (B) of three advertisement calls (LH 683, call from UFMT 13647), and part of a sequence (C) of advertisement calls of Pseudopaludicola ameghini, recorded on 12 February 2012 at Parque Nacional da Chapada dos Guimarães, municipality of Cuiabá, state of Mato Grosso, Brazil (21:55 h, air temperature 24.8ºC).

opennotspecifiedMar 2013View details →
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FIGURE 2 in Morphometric and bioacoustic data on three species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) described from Chapada dos Guimarães, Mato Grosso, Brazil, with the revalidation of Pseudopaludicola ameghini (Cope, 1887)

FIGURE 2. Multivariate variation in morphology, along the first two principal component axes, of the three species of Pseudopaludicola described from Chapada dos Guimarães (Mato Grosso, Brazil). Morphological data include 12 external body measurements taken from adult male specimens of Pseudopaludicola ameghini (n=42), P. mystacalis (n=46), and P. saltica (n=44).

opennotspecifiedMar 2013View details →
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FIGURE. Natural hybrids of Drosera sect. Drosera in Brazil. Drosera cayennensis × D. hirtella: a, rosette with emerging inflorescence (Cristalina, GO). Drosera communis × D. hirtella: b, rosette with emerging inflorescence (Parque Nacional da Chapada dos Veadeiros, GO). Drosera communis × D. lutescens: c, rosette with emerging inflorescence (Parque Nacional da Chapada dos Guimarães, MT). Drosera hirtella × D. lutescens (d, e): comparison between the hybrid (center) and the two parental species, D. hirtella (left) and D. lutescens (right); d, rosettes; e, scapes (Serra dos Pirineus, GO). Photo credits: a, b by PMG; c by Marcos Cardoso; d by FR. in A synopsis of the genus Drosera (Droseraceae) in Brazil

FIGURE. Natural hybrids of Drosera sect. Drosera in Brazil. Drosera cayennensis × D. hirtella: a, rosette with emerging inflorescence (Cristalina, GO). Drosera communis × D. hirtella: b, rosette with emerging inflorescence (Parque Nacional da Chapada dos Veadeiros, GO). Drosera communis × D. lutescens: c, rosette with emerging inflorescence (Parque Nacional da Chapada dos Guimarães, MT). Drosera hirtella × D. lutescens (d, e): comparison between the hybrid (center) and the two parental species, D. hirtella (left) and D. lutescens (right); d, rosettes; e, scapes (Serra dos Pirineus, GO). Photo credits: a, b by PMG; c by Marcos Cardoso; d by FR.

opennotspecifiedJul 2022View details →
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FIGURE 34. A in Argia angelae (Odonata: Zygoptera: Coenagrionidae) sp. nov. from Chapada dos Guimarães, Mato Grosso, Brazil

FIGURE 34. A couPle of Argia angelae at Rio Paciência, one of their natural habitats at ChaPada dos Guimarães, Brazil.

opennotspecifiedDec 2018View details →
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FIGURE 19 in Argia angelae (Odonata: Zygoptera: Coenagrionidae) sp. nov. from Chapada dos Guimarães, Mato Grosso, Brazil

FIGURE 19. Female mesostigmal Plates in dorsal View of Argia angelae from ChaPada dos Guimarães, Brazil (a-c, ACR 03392) and Argia botacudo from ChaPada dos Guimarães (d-f), detailing the mesostigmal lobes.

opennotspecifiedDec 2018View details →
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FIGURE 4 in Argia angelae (Odonata: Zygoptera: Coenagrionidae) sp. nov. from Chapada dos Guimarães, Mato Grosso, Brazil

FIGURE 4. Argia angelae. Caudal aPPendages in mediodorsal (a), dorsal (b), lateral (c) and Ventral (d) Views and genital ligula in ectal (e) and lateral (f) Views of ParatyPe (ACR 03224) from ChaPada dos Guimarães, Brazil.

opennotspecifiedDec 2018View details →
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FIGURE 1 in Argia angelae (Odonata: Zygoptera: Coenagrionidae) sp. nov. from Chapada dos Guimarães, Mato Grosso, Brazil

FIGURE 1. Argia angelae. Distribution throughout the National Park of ChaPada dos Guimarães (black dots inside the greener area). Outside the Park are the Balneário Rio Paciência (black dot at left of the greener area) and Balneário Som do Mato, Rio Claro (black dot at right of the greener area).

opennotspecifiedDec 2018View details →

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