Anais da Academia Brasileira de Ciencias最新文献_第4页

Alumni abroad as catalysts for the internationalization of Brazilian Science. 海外校友促进巴西科学国际化。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250425

Bruno E Soares, Rita DE Cássia Q Portela

引用次数: 0

The shape, structure, function, and evolution of the pterosaurian uropatagium. 翼龙尾翼的形状、结构、功能和演化。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250129

David W E Hone, Edina Prondvai

{"title":"The shape, structure, function, and evolution of the pterosaurian uropatagium.","authors":"David W E Hone, Edina Prondvai","doi":"10.1590/0001-3765202520250129","DOIUrl":"https://doi.org/10.1590/0001-3765202520250129","url":null,"abstract":"The wing membrane of pterosaurs is the earliest innovation in the evolution of vertebrate powered flight and led to pterosaurs dominating the Mesozoic skies. Most studies of pterosaur flight focus on the main wing surface, the brachiopatagium, whereas the small but aerodynamically potentially important tail membrane, the uropatagium, is comparatively understudied. This review presents the current knowledge of the shape, extent, structure and function of the uropatagium that lies between the legs in pterosaurs, based on the available fossil evidence. Both direct evidence from soft tissue preservation and indirect evidence from osteological and ichnological data, suggest variation in the uropatagium among taxa, although evolutionary trends can still be outlined. While early branching pterosaurs had a proportionally large, confluent uropatagium integrated to varying extent with the tail and attached to the elongate fifth toe, pterodactyloid pterosaurs had a greatly reduced and split uropatagium spanning a much smaller triangular area between the knee joint and the base of the tail. The uropatagium was an important component of flight in early pterosaurs and its modification and reduction in derived forms is part of a major transition with the origins of the pterodactyloids and their changing flight and walking apparatus.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97Suppl. 1 Suppl. 1","pages":"e20250129"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vriesea museunacionalii, a new species of bromeliad named in homage to the oldest scientific institution in Brazil. Vriesea museunacionalii，一种新的凤梨属植物，以巴西最古老的科学机构命名。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240676

Igor M Kessous, Nílber G Silva, Márcia Gonçalves, Joana Monteiro, Alessandra R Pinto, Andrea F Costa

引用次数: 0

Pesticides and non-essential metals in Amazonian aquatic organisms: A Scientometric Overview. 亚马逊水生生物中的农药和非必需金属：科学计量学综述。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520240726

Ândrocles O Borges, Luan C Imbiriba, Daniel Vitor Santos-Soares, Giulia F A Rodrigues, Matheus DA Silva, Francisco Daniel Migueis DA Silva, Maiby G S Bandeira

{"title":"Pesticides and non-essential metals in Amazonian aquatic organisms: A Scientometric Overview.","authors":"Ândrocles O Borges, Luan C Imbiriba, Daniel Vitor Santos-Soares, Giulia F A Rodrigues, Matheus DA Silva, Francisco Daniel Migueis DA Silva, Maiby G S Bandeira","doi":"10.1590/0001-3765202520240726","DOIUrl":"10.1590/0001-3765202520240726","url":null,"abstract":"This study aims to assess the scientific knowledge regarding the impact of pesticides and non-essential metals on freshwater aquatic organisms within the Amazon basin. The investigation encompasses a comprehensive analysis, including: i) temporal patterns; ii) methodological approaches; iii) keywords; iv) geographical distribution; v) academic institutions; vi) studied groups of aquatic organisms; and vii) specific environmental contexts investigated. It was used 203 publications in Web of Science and Scopus databases. A discernible ascending trajectory in publication frequency was observed over time, exhibiting a robust and statistically significant correlation with citation counts. The predominant disciplinary focus was discerned to be Environmental Science. Prevalent keywords encapsulated \"Mercury,\" \"Fish,\" \"Amazon\", \"methylmercury\" and \"bioaccumulation\". Noteworthy scholarly contributions emanated primarily from Brazil, with substantive collaboration of the United States, France, Canada and Bolivia. Among the foremost research entities were Brazilian institutions. Bioindicator selection exhibited a distinct predilection for fishes. The diverse spectrum of aquatic environments scrutinized included rivers, lakes, laboratory settings, and reservoirs. This scientometric analysis not only furnishes insights into the global trajectory of research on pesticides and non-essential metals within Amazonian aquatic ecosystems but also identifies prevailing methodologies, research lacunae, and prospects for future investigations within the Amazon basin.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 3","pages":"e20240726"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Helminth parasites of the Neotropical treefrog Itapotihyla langsdorffii in southeastern Brazil. 巴西东南部新热带树蛙Itapotihyla langsdorffii的寄生虫。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250290

Davor Vrcibradic, Francisco Tiago V Melo, Karla Magalhães Campião

{"title":"Helminth parasites of the Neotropical treefrog Itapotihyla langsdorffii in southeastern Brazil.","authors":"Davor Vrcibradic, Francisco Tiago V Melo, Karla Magalhães Campião","doi":"10.1590/0001-3765202520250290","DOIUrl":"https://doi.org/10.1590/0001-3765202520250290","url":null,"abstract":"Itapotihyla langsdorffii is a large-bodied hylid frog endemic to the Atlantic Forest, occurring in Brazil, Paraguay and northern Argentina. Information on its endoparasite fauna is currently restricted to one old report of a nematode (Aplectana sp.). In the present study we analyse for the first time the endoparasite assemblage associated with a population of Itapotihyla langsdorffii, assessing its infection parameters. We examined 27 specimens from an Atlantic Forest remnant in the State of Espírito Santo, Brazil, of which 85% were infected by helminths. Ten helminth species were recorded in the hosts (plus indeterminate cosmocercids and larval nematodes that could potentially represent additional species). The helminths occurring with the highest prevalences (48% and 37%, respectively) were Polystoma sp. (Platyhelminthes, Monogenea) and Cosmocercidae indet. (Nematoda). Helminth richness was positively influenced by host body size and was greater in females than in males. On the other hand, host size did not seem to influence the infection intensity of the most common parasites. The present survey indicated that Itapotihyla langsdorffii has one of the richest endoparasite faunas among South American hylids, including both heteroxenous and monoxenous species (although they seemingly serve as final hosts only for the latter).","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20250290"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variation in wings shape of the common Neotropical stingless bee Tetragonisca angustula (Hymenoptera: Meliponini) across an urbanization gradient. 新热带普通无刺蜜蜂翅形在城市化梯度上的变化（膜翅目：蜜蜂）。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241101

Ana Paula V Andreazzi, Rodrigo P Dallacqua, Rodrigo Aranda

{"title":"Variation in wings shape of the common Neotropical stingless bee Tetragonisca angustula (Hymenoptera: Meliponini) across an urbanization gradient.","authors":"Ana Paula V Andreazzi, Rodrigo P Dallacqua, Rodrigo Aranda","doi":"10.1590/0001-3765202520241101","DOIUrl":"https://doi.org/10.1590/0001-3765202520241101","url":null,"abstract":"Tetragonisca angustula bees are widely distributed throughout Brazil and nesting in various substrates, including urban areas. This study aims to investigate the environmental effects on wing morphometry in T. angustula bees along an urban gradient, determining if and where these variations occur and whether asymmetry increases in urbanized environments. We evaluated three distinct locations: an urban area, a semi-natural urban area, and a rural area. The results revealed different morphometric patterns related to both wing shape and asymmetry supporting the hypothesis that urban areas generate more biological stress in individuals compared to the other two areas. Additionally, the findings suggest that urbanization affects the wing morphometrics of the species' anatomical landmarks, indicating possible influences of food resources, temperature, and ecological pressures on these variations. Our study enhances the understanding of morphological variations in urban pollinators as a proxy for environmental quality and can help devise strategies to mitigate the negative effects associated with increased urbanization.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20241101"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First pterosaur tracks from Brazil. 第一个翼龙的足迹来自巴西。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241490

Mauro B S Lacerda, Marcelo A Fernandes, Giuseppe Leonardi

{"title":"First pterosaur tracks from Brazil.","authors":"Mauro B S Lacerda, Marcelo A Fernandes, Giuseppe Leonardi","doi":"10.1590/0001-3765202520241490","DOIUrl":"https://doi.org/10.1590/0001-3765202520241490","url":null,"abstract":"We describe here the first record of pterosaur fossil tracks from the Lower Cretaceous of Brazil, based on new records from the Botucatu Formation (Paraná Basin). These rocks comprise a desert region of dunes and interdunes from which several tetrapod tracks/trackways are known, including tridactyl dinosaurs, lizards and small mammals; giving some clues about the inhabitants of this ancient desert. The new findings were recovered from the well-known Ouro ichnosite (Araraquara Municipality, São Paulo State), and are represented by isolated and well-preserved tridactyl tracks, with left manus (LPP-IC-0232) being digitigrade and the left pes (LPP-IC-0233) being plantigrade. The manus imprint is asymmetrical with a long impression of digit III pointing backwards; these features distinguish this track from tridactyl dinosaurs, resembling a rhombic track morphology, diagnostic of <italic>Pteraichnus</italic>. Furthermore, in the pes imprint, the metatarsal region is about four times longer than the digital region. Three short, anteriorly directed digit impressions are present, in addition to the midfoot arch (pedal isthmus) on the medial edge of track, which are also features of <italic>Pteraichnus</italic>. This is the first occurrence of pterosaur tracks in Brazil, classified as <italic>Pteraichnus</italic> isp., increasing the ichnological diversity of the Botucatu Formation and also of the Brazilian geopaleontological heritage.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97Suppl. 1 Suppl. 1","pages":"e20241490"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Length-weight relationships and condition factor of five ornamental fish species of the middle of the Negro River basin, Amazon, Brazil. 巴西亚马逊河中游内格罗河流域5种观赏鱼的长重关系及条件因子

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241516

Marcio Q C Santos, Jefferson Raphael G Lemos, Carmel N Pereira, Rebeca B Nascimento, Paulo Henrique R Aride, Adriano T DE Oliveira

{"title":"Length-weight relationships and condition factor of five ornamental fish species of the middle of the Negro River basin, Amazon, Brazil.","authors":"Marcio Q C Santos, Jefferson Raphael G Lemos, Carmel N Pereira, Rebeca B Nascimento, Paulo Henrique R Aride, Adriano T DE Oliveira","doi":"10.1590/0001-3765202520241516","DOIUrl":"https://doi.org/10.1590/0001-3765202520241516","url":null,"abstract":"Length-weight relationships (LWR) were calculated for five freshwater ornamental fish species from the middle Negro River basin in the Brazilian Amazon. Samplings were carried out from October 2011 to February 2012, and the specimens were found close to stream margins and submersed tree trunks and captured with hand nets. This study provides the LWR and condition factor (Kn) parameters for <italic>Carnegiella strigata </italic>butterfly fish, <italic>Dekeyseria brachyura </italic>jaguar fish, <italic>Dicrossus maculatus </italic>chess fish, <italic>Paracheirodon axelrodi</italic> cardinal and <italic>Petitella georgiae </italic>drunk's nose. Descriptive statistics and estimated LWR parameters, including coefficient of determination (r2) and 95% confidence limits for a and b. Values of a ranged from 0.005 to 0.014, b ranged from 2.555 to 3.418, and r2 ranged from 0.931 to 0.996. Every species of fish displayed allometric growth (b ≠ 3). No difference was observed between the Kn of the five fish species, indicating good body condition. The information gathered here could be helpful for population dynamics research as well as for developing conservation and sustainable management plans for ornamental fish populations in the middle Negro River basin, Amazonas, Brazil.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 3","pages":"e20241516"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermally immobilized cellulose acetate butyrate on silica particles as stationary phase for high-performance liquid chromatography. 热固定化醋酸丁酸纤维素在二氧化硅颗粒上作为高效液相色谱的固定相。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241225

Isabela Sayuri Ambrosio, Aline Stéffani Silva, Allyson Leandro R Santos, Rosana Maria N Assunção, Anizio Marcio DE Faria

{"title":"Thermally immobilized cellulose acetate butyrate on silica particles as stationary phase for high-performance liquid chromatography.","authors":"Isabela Sayuri Ambrosio, Aline Stéffani Silva, Allyson Leandro R Santos, Rosana Maria N Assunção, Anizio Marcio DE Faria","doi":"10.1590/0001-3765202520241225","DOIUrl":"https://doi.org/10.1590/0001-3765202520241225","url":null,"abstract":"Reversed-phase liquid chromatography is the most widely used analytical technique nowadays. However, it generates a large volume of toxic organic residues and presents poor separations of small polar molecules in traditional stationary phases. In this work, cellulose acetate butyrate was synthesized and used as a reversed-phase coating for separating compounds using highly aqueous mobile phases, reducing organic solvent consumption and minimizing the supra-cited problems. Cellulose acetate butyrate presented a degree of substitution of 0.65 (±0.05) by 1H nuclear magnetic resonance, resulting in hydrophilic and hydrophobic groups in the polymer. The stationary phases were characterized physicochemically by infrared spectroscopy, indicating the polymer attachment on the silica surface with 180 m2 g-1 of surface area and 22 nm of mean pore size. The stationary phase was column-packed and chromatographically characterized by separating the Tanaka mixtures. These separations occurred in reversed-phase mode with hydrophobic and hydrophilic interactions related to the acetate/butyrate and hydroxyl groups from the cellulose derivative. The stationary phase showed unique selectivity for separating small polar molecules with 90 % water in mobile phases. Cellulose acetate butyrate stationary phases can potentially separate polar compounds that require high water contents, making reversed-phase liquid chromatography closer to the Principles of Green Chemistry.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 3","pages":"e20241225"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145074169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Macrofungi with Potential for Bioremediation of the Herbicide Atrazine. 具有生物修复除草剂阿特拉津潜力的大型真菌。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-15 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241100

Rodrigo V Elias, Miriam H Inoue, Hilton Marcelo L Souza

{"title":"Macrofungi with Potential for Bioremediation of the Herbicide Atrazine.","authors":"Rodrigo V Elias, Miriam H Inoue, Hilton Marcelo L Souza","doi":"10.1590/0001-3765202520241100","DOIUrl":"https://doi.org/10.1590/0001-3765202520241100","url":null,"abstract":"Atrazine is used widely corn cultivation, providing as an effective and low-cost control of broadleaf and grassy weeds. However, this herbicide exhibits high persistence in the soil and can potentially interfere with the photosynthesis of non-target plants. Scientific literature has demonstrated that macrofungi offer several advantages for use in the bioremediation of environmental contaminants, mainly due to their ability to withstand stressful conditions and produce extracellular enzymes with low specificity that may be involved in the biodegradation process. This study evaluated the ability of macrofungal species to tolerate the herbicide atrazine and produce laccase, an enzyme capable of degrading xenobiotics. To achieve this, tolerance assays of fungi to atrazine were performed to assess growth rate and mycelial growth inhibition, as well as analysis of laccase enzymatic activity through the oxidation of 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) at 420 nm using a spectrophotometer. The results demonstrated that all four analyzed macrofungi were tolerant to the herbicide atrazine. However, Lentinus crinitus SA37 stood out, due to its low mycelial growth inhibition rate and laccase production. This research enabled the selection of L. crinitus SA37 for future studies on the biodegradation and mineralization of atrazine.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20241100"},"PeriodicalIF":1.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145136176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0