Biota Neotropica最新文献

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Brazilian Troglophilic Biodiversity: a neglected fauna in conservation actions 巴西亲人类生物多样性:保护行动中被忽视的动物群
4区 环境科学与生态学
Biota Neotropica Pub Date : 2025-01-01 DOI: 10.1590/1676-0611-bn-2024-1711
Marcus Vinícius da Silva Agua Duarte, Jonas Eduardo Gallão, Maria Elina Bichuette
{"title":"Brazilian Troglophilic Biodiversity: a neglected fauna in conservation actions","authors":"Marcus Vinícius da Silva Agua Duarte, Jonas Eduardo Gallão, Maria Elina Bichuette","doi":"10.1590/1676-0611-bn-2024-1711","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2024-1711","url":null,"abstract":"Abstract Subterranean or hypogean habitats, despite colonization filters, can harbor high biodiversity with unique fauna and significant endemism. Traditionally, this biodiversity is categorized into Trogloxenes (organisms using the hypogean realm as shelters and frequently exiting to complete their life cycle), Troglophiles (“facultative cave-dwellers”), and Troglobites (restricted to subterranean habitats), according to Schiner-Racovitza (1907). Troglophilic organisms, capable of completing their life cycles in both epigean (surface) and hypogean environments, are crucial as potential ancestors of troglobites or possible recolonizers of the epigean environment if surface populations disappear. Biodiversity studies are vital for recognizing threats and enabling effective conservation policies. However, these studies often face Linnean (richness) and Wallacean (distribution) shortfalls due to difficulties in accessing subterranean habitats and taxonomic challenges, leading to uncertainties about the diversity and distribution of subterranean animals. In hypogean habitats, biodiversity projects have largely focused on troglobites, with troglophiles historically neglected in faunistic studies. To address this, we created a database on troglophiles by surveying works that presented faunistic lists of Brazilian caves and categorizations of their fauna. We also assessed the influence of shortfalls on knowledge of troglophilic biodiversity. We cataloged 223 described troglophilic species, distributed across 51 orders and five phyla, with spiders (49 species) being the main representatives. These species are found in 18 federative states and 10 biogeographical regions in Brazil, with a higher concentration in Minas Gerais and São Paulo, which encompass the Cerrado and Paraná Forest biogeographical provinces. We observed a strong influence of both Linnean and Wallacean shortfalls on the knowledge of Brazilian troglophiles and a complement to the Racovitizian shortfall was proposed, resulting from the difficulty in categorizing an organism as a troglophile, requiring ecological-evolutionary interpretation. The database will be available for future consultation and modification on the website of the Laboratório de Estudos Subterrâneos (https://www.lesbio.ufscar.br), under the name BioTroglophileBR.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"25 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147894318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thematic assessment report on invasive alien species in Brazil: summary for policymakers 巴西外来入侵物种专题评估报告:决策者摘要
4区 环境科学与生态学
Biota Neotropica Pub Date : 2024-01-01 DOI: 10.1590/1676-0611-bn-2024-1645
Michele de Sá Dechoum, Andréa de Oliveira Ribeiro Junqueira, Mário Luís Orsi, Sílvia Renate Ziller, Vânia Regina Pivello, Rafael Dudeque Zenni, Sidinei Magela Thomaz, Adriana Carvalhal Fonseca, Jean Ricardo Simões Vitule, Francisco Barros, Natália Macedo Ivanauskas, Joel C. Creed, Marcelo Fulgêncio Guedes de Brito, Helena Godoy Bergallo, Rosana Moreira da Rocha, Fernando A. Galheigo
{"title":"Thematic assessment report on invasive alien species in Brazil: summary for policymakers","authors":"Michele de Sá Dechoum, Andréa de Oliveira Ribeiro Junqueira, Mário Luís Orsi, Sílvia Renate Ziller, Vânia Regina Pivello, Rafael Dudeque Zenni, Sidinei Magela Thomaz, Adriana Carvalhal Fonseca, Jean Ricardo Simões Vitule, Francisco Barros, Natália Macedo Ivanauskas, Joel C. Creed, Marcelo Fulgêncio Guedes de Brito, Helena Godoy Bergallo, Rosana Moreira da Rocha, Fernando A. Galheigo","doi":"10.1590/1676-0611-bn-2024-1645","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2024-1645","url":null,"abstract":"Abstract Biological invasions are one of the major threats to biodiversity and good quality of life, resulting from the translocation of species by human action. There are more than 500 alien species currently invading ecosystems in Brazil, particularly plants and fishes, while little is known about invasive microorganisms. Although invasive alien species are present in all ecosystems in the country, most have been recorded in habitats with greater human interference, such as urban and peri-urban areas, farmland, dams, reservoirs, ports, and canals. Historically, the southern and southeastern regions of Brazil have had more invasive alien species, but there has been an increase in the number of invasive alien species in the central-western and northern regions in recent decades. The ornamental trade of plants and fishes as well as the illegal pet trade of wild mammals and reptiles are some of the main pathways for invasive species introduction and spread in Brazil. Breeding and cultivation systems that allow escape to natural areas are a relevant route of species introductions in freshwater ecosystems, while unintentional introductions from shipping and infrastructure are of extreme concern in marine ecosystems. The negative impacts of invasive alien species on the biota mainly include changes in community structure and local decrease in native species richness, mediated by predation, competition, and ecosystem changes. Most negative impacts are recorded for intentionally introduced species, such as fishes and plants, but unintentional introductions have led to impacts on good quality of life, with associated costs and impacts on human health. The management of biological invasions faces challenges that need to be overcome, such as the lack of public knowledge about the impact of invasive alien species, the popular appeal of charismatic invasive species or those used by humans, and the use of controversial control techniques. However, successful experiences of eradication and control in terrestrial and marine ecosystems have been recorded, some of them involving public engagement in management actions. Recognizing the issue as a cross-cutting public policy and developing ongoing governance experiences are fundamental goals for the management of invasive alien species in Brazil.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"24 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.scielo.br/j/bn/a/Q8Lm5FM8tJkLkBGJchNP49F/?lang=en&format=pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147917631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Rediscovery of presumably extinct species of Aristida in São Paulo State, Brazil 在巴西<s:1>圣保罗州重新发现可能已经灭绝的Aristida物种
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-09-08 DOI: 10.1590/1676-0611-bn-2022-1445
Lucas Dias Sanglade, Maria Tereza Grambone Guaratini, Cíntia Kameyama, R. Shirasuna, R. Boschi, D. M. S. Matos, V. Pivello
{"title":"Rediscovery of presumably extinct species of Aristida in São Paulo State, Brazil","authors":"Lucas Dias Sanglade, Maria Tereza Grambone Guaratini, Cíntia Kameyama, R. Shirasuna, R. Boschi, D. M. S. Matos, V. Pivello","doi":"10.1590/1676-0611-bn-2022-1445","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2022-1445","url":null,"abstract":"Abstract Two species of Poaceae (Aristidoideae) Aristida ekmaniana Henrard and A. macrophylla Hack. considered “presumably extinct” in the Brazilian state of São Paulo were rediscovered during fieldwork. We hereby describe the location, ecosystem, and habitat type where the species were found. We suggest these grasses be removed from the list of extinct species and be placed in a category compatible with the current knowledge about their conservation status in the state of São Paulo.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"63 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90154916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selaginella P.Beauv. (Selaginellaceae) in the state of Maranhão, northeastern, Brazil: A floristic survey and a new record for the Cerrado domain 卷柏P.Beauv。巴西东北部maranh<e:1>州(Selaginellaceae):植物区系调查及Cerrado域新记录
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-09-08 DOI: 10.1590/1676-0611-bn-2023-1515
R. Fernandes, Wagner Ribeiro da Silva Junior, A. W. Ferreira, F. Ottoni, Sirlane Santos Oliveira, Marcio Roberto Pietrobom, Iván A. Valdespino
{"title":"Selaginella P.Beauv. (Selaginellaceae) in the state of Maranhão, northeastern, Brazil: A floristic survey and a new record for the Cerrado domain","authors":"R. Fernandes, Wagner Ribeiro da Silva Junior, A. W. Ferreira, F. Ottoni, Sirlane Santos Oliveira, Marcio Roberto Pietrobom, Iván A. Valdespino","doi":"10.1590/1676-0611-bn-2023-1515","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2023-1515","url":null,"abstract":"Abstract This work is a floristic study of Selaginella in Maranhão. The species survey is based on collections from fieldwork conducted between April 2006 and February 2023 and specimens from Maranhão deposited at the CCAA, HBRA, MG, and SLUI herbaria. Ten species were identified: Selaginella conduplicata, S. convoluta, S. erythropus, S. flagellata, S. gynostachya S. marginata, S. minima, S. radiata, S. simplex, and S. sulcata. We report the first record of S. gynostachya for Maranhão and the Cerrado domain in Brazil. Until now, this species was only known from areas of Amazonia. We provide a map with records, an identification key, and comments about the identification and geographic distribution of Selaginella species in Maranhão state. For the new record, we also provide photos.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"140 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77553295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Germination of fruits eaten by the maned wolf Chrysocyon brachyurus (Illiger, 1815) (Carnivora, Canidae) 鬃狼Chrysocyon brachyurus (Illiger, 1815)食用果实的发芽(食肉目,犬科)
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-08-28 DOI: 10.1590/1676-0611-bn-2022-1413
Samia Cardoso dos Reis, João Henrique Pinheiro Dias, Lucio de Oliveira e Sousa, Adriano Garcia Chiarello, M. E. D. Sá, I. P. Ramos
{"title":"Germination of fruits eaten by the maned wolf Chrysocyon brachyurus (Illiger, 1815) (Carnivora, Canidae)","authors":"Samia Cardoso dos Reis, João Henrique Pinheiro Dias, Lucio de Oliveira e Sousa, Adriano Garcia Chiarello, M. E. D. Sá, I. P. Ramos","doi":"10.1590/1676-0611-bn-2022-1413","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2022-1413","url":null,"abstract":"Abstract Zoochory is a fundamental process that can be the main mechanism for seed and plant dispersal for many species. Mammals of the Carnivora order are among the most important dispersing agents; however, little is known regarding the role of canids as seed dispersers. Although the maned wolf (Chrysocyon brachyurus) has a potentially important role in seed dispersal, given its relatively high consumption of fruits, few studies have investigated the germination rate of ingested seeds. Here, we used seeds removed from the feces of two captive specimens (maned wolf treatment) and those directly collected from unconsumed fruits (control) in germination essays to evaluate the germination rate and emergence velocity index (IVE). We used mature fruits from five species of trees in the Cerrado and Atlantic Forest in a 5 (species) × 2 (method of seed collection) factorial arrangement. The passage of seeds through the digestive tract of the maned wolf favored the germination of Genipa americana and Psidium guajava, delayed germination of Psidium cattleianum, and maintained the germination of Plinia cauliflora and Ficus obtusifolia. Our results revealed that germination occurred for all tested plant species consumed by the maned wolf; therefore, this canid species has high dispersal potential and can be an important ally in the restoration of the Cerrado and Atlantic Forest-Cerrado contact zone ecosystems.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89528015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Georeferenced database and interactive online map of limnoterrestrial and freshwater Tardigrada from Central and South America 中南美洲湖泊陆生和淡水缓步动物地理参考数据库和交互式在线地图
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-08-28 DOI: 10.1590/1676-0611-bn-2023-1498
Pedro Danel de Souza Ugarte, Luisa Pucci Suzuki, Laura Gonsalves Cruvinel, A. Garraffoni
{"title":"Georeferenced database and interactive online map of limnoterrestrial and freshwater Tardigrada from Central and South America","authors":"Pedro Danel de Souza Ugarte, Luisa Pucci Suzuki, Laura Gonsalves Cruvinel, A. Garraffoni","doi":"10.1590/1676-0611-bn-2023-1498","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2023-1498","url":null,"abstract":"Abstract Like other meiofaunal organisms, tardigrades suffer from a significant knowledge gap concerning many aspects of their biodiversity. The lack of an up-to-date digital collection with all species and details of limnoterrestrial and freshwater tardigrades in South and Central America is one of the most critical gaps to be filled. Therefore, the present work aims to develop a database containing all valid species of limnoterrestrial and freshwater tardigrades from South and Central America found until 2023 and provide open access to the results. Data for each species were obtained directly from the literature using Google Scholar and the website tardigrada.net. This compiled data resulted in the creation of a database with the species name, author and year of species description, genus, family, class, type country, type location, coordinates (longitude and latitude), if it is aquatic and/or limnoterrestrial, substrate where it was found, the country and location of collection, and manuscript containing the species identification. Furthermore, the coordinates of each occurrence were plotted on maps with political-administrative boundaries and Neotropical and Andean biogeographic regions. In addition, statistical analysis was performed related to the geographic distribution of the sampling effort. From the literature, 2157 records of valid non-marine Tardigrada species, endemic or not, were computed. From these records, 271 species of tardigrades have been identified in the two regions combined, with 223 species in South America and 129 species in Central America. We were able to show that there are still many biases in the sampling of tardigrades in the Neotropical and Andean regions and that further studies are needed on the biogeography of these meiofaunal organisms in these biogeographic regions. We expect this database to help better understand the richness and distribution patterns of limnoterrestrial and aquatic tardigrade species in Central and South America.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"18 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91125903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hidden in the dung: first record of Maculantrops hirtipes () (Diptera, Sphaeroceridae) from Brazil 藏于粪中:巴西斑蝽(Maculantrops htipes)(双翅目,圆蚧科)首次记录
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-08-25 DOI: 10.1590/1676-0611-bn-2023-1492
P. Hoffmann, M. M. Soares, J. Kits, L. Maltchik
{"title":"Hidden in the dung: first record of Maculantrops hirtipes () (Diptera, Sphaeroceridae) from Brazil","authors":"P. Hoffmann, M. M. Soares, J. Kits, L. Maltchik","doi":"10.1590/1676-0611-bn-2023-1492","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2023-1492","url":null,"abstract":"Abstract We recorded for the first time the lesser dung fly Maculantrops hirtipes (Macquart, 1844) from Brazil, state of Rio Grande do Sul. Twenty-five specimens were reared from the dung of Myocastor coypus (Molina, 1782), this is the first record of the feeding substrate for the genus Maculantrops and the second only for the Archiborborinae. In addition, we describe the puparium, provide an updated distribution map and additional photographs of the species.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"204 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76960067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One more place to call home: the invasive bivalve Mytilopsis leucophaeata reaches the Maricá-Guarapina lagoon system (Rio de Janeiro, Brazil) 又多了一个可以称之为家的地方:入侵的双壳类动物白带Mytilopsis到达Maricá-Guarapina泻湖系统(巴西里约热内卢)
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-08-25 DOI: 10.1590/1676-0611-bn-2023-1503
Clarisse Duarte da Rocha, M. R. Fernandes, I. Miyahira
{"title":"One more place to call home: the invasive bivalve Mytilopsis leucophaeata reaches the Maricá-Guarapina lagoon system (Rio de Janeiro, Brazil)","authors":"Clarisse Duarte da Rocha, M. R. Fernandes, I. Miyahira","doi":"10.1590/1676-0611-bn-2023-1503","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2023-1503","url":null,"abstract":"Abstract Mytilopsis leucophaeata is an estuarine bivalve native from the Gulf of Mexico and Southeast USA, and it was introduced in Europe, Asia, Caribbean, South America and Northeast USA, showing massive colonization skills. In Brazil, the single invasion records of M. leucophaeata occur in the city of Rio de Janeiro, i.e., in the Rodrigo de Freitas Lagoon and in the Marapendi Lagoon. We conducted a new series of fieldworks in estuaries from the Rio de Janeiro state in order to evaluate the propagation of this invasive bivalve, aiming sites with proper salinities for the establishment of M. leucophaeata. A new record is given for the Maricá-Guarapina lagoon system, where M. leucophaeata mainly colonizes hard substrata (such as piers and rocks), reaching a mean density up to 43,375 specimens/m2; however, aggregates of M. leucophaeata were also observed in the soft substratum. Based on mitochondrial sequences, the taxonomic identification of the invasive bivalve was confirmed. The associated fauna to the agglomerates of M. leucophaeata in the lagoon system comprises amphipods, barnacles, tanaidaceans, isopods, crabs, polychaetes and snails. The expansion of M. leucophaeata requires a continuous investigation due to the great circulation of boats in the littoral of the Rio de Janeiro state and the increased chance of new introductions.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"16 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74558489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New records of Ceratocampinae (Lepidoptera: Saturniidae) species from the Cerrado of Maranhão, Brazil 标题巴西maranh<e:1>塞拉多蠓科新记录(鳞翅目:蠓科)
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-08-18 DOI: 10.1590/1676-0611-bn-2022-1451
Alberico Alves dos Santos, Carlos Alberto Domingues da Silva, R. S. Camargo, C. Wilcken, R. Pinheiro, P. G. Lemes, J. C. Zanuncio
{"title":"New records of Ceratocampinae (Lepidoptera: Saturniidae) species from the Cerrado of Maranhão, Brazil","authors":"Alberico Alves dos Santos, Carlos Alberto Domingues da Silva, R. S. Camargo, C. Wilcken, R. Pinheiro, P. G. Lemes, J. C. Zanuncio","doi":"10.1590/1676-0611-bn-2022-1451","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2022-1451","url":null,"abstract":"Abstract Ceratocampinae (Lepidoptera: Saturniidae) is the second most diverse subfamily of Saturniidae with 300 species described in 30 genera from southern Canada to northern Argentina. Species of this subfamily are widely distributed in Southeast Brazil, with many endemics to the Cerrado, and important as indicators of ecosystem quality. Specimens of Ceratocampinae were collected in the Parque Estadual do Mirador, Maranhão state, Brazil. Adeloneivaia acuta (Schaus, 1896), Adeloneivaia schubarti Barros & O. Mielke, 1970, Eacles penelope (Cramer, 1775) and Megaceresa pulchra (Bouvier, 1923) are recorded for the first time in Maranhão state and Northeast Brazil and Eacles fairchildi May & Oiticica, 1941, only for Maranhão. The record of five Ceratocampinae (Saturniidae) species increases the knowledge on the diversity and the importance of preserving those of this subfamily in the Cerrado biome of Maranhão state and the Northeast region of Brazil.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"1951 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91187788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","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 relationship and condition factor for Prochilodus lineatus, an important commercial fish, in contrasting water-quality environments of the middle Tietê River basin, Southeast Brazil 巴西东南部Tietê河中游水质环境中重要商品鱼长-重关系及条件因子研究
IF 1.2 4区 环境科学与生态学
Biota Neotropica Pub Date : 2023-07-31 DOI: 10.1590/1676-0611-bn-2023-1467
Bruna Q. Urbanski, E. Brambilla, M. Nogueira
{"title":"Length-weight relationship and condition factor for Prochilodus lineatus, an important commercial fish, in contrasting water-quality environments of the middle Tietê River basin, Southeast Brazil","authors":"Bruna Q. Urbanski, E. Brambilla, M. Nogueira","doi":"10.1590/1676-0611-bn-2023-1467","DOIUrl":"https://doi.org/10.1590/1676-0611-bn-2023-1467","url":null,"abstract":"Abstract This work was carried out in order to provide the length-weight relationship (LWR) and the allometric condition factor (Ka), as well as its correlation with limnological variables, for Prochilodus lineatus from the middle Tietê River basin. Fish were collected using gill nets in two rivers with contrasting environmental conditions, totaling 46 specimens in the highly polluted Tietê River, and 37 in the Peixe River, a relatively well-conserved tributary. Environmental measures were obtained concomitantly to the fish capture. The results showed an isometric growth (b = 3.00) for the fish from Tietê River and a positive allometric growth (b = 3.23) for the fish from Peixe River. The mean value of Ka was unexpectedly higher for the main river (Ka = 2.63) when compared to its tributary (Ka = 2.42), being statistically different from each other. This can be explained by the much higher availability of organic sediments in the main river, resulting from a long-term eutrophication process. Nevertheless, the positive and statistically significant correlations with dissolved oxygen, for both rivers, as well as significant negative correlations with electric conductivity, nitrogen and chlorophyll a for Tietê River, indicate the negative effects of the water quality deterioration on the fish condition factor. The work contributes to the expansion of knowledge about P. lineatus, the most important commercial fish of the middle Tietê River basin, which is severely impacted by unsustainable human actions.","PeriodicalId":49102,"journal":{"name":"Biota Neotropica","volume":"40 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87384342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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