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Registros recuperados: 16 | |
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Lopes , Giovana Tetsuya; Rosset, Jean Sérgio; Ozório, Jefferson Matheus Barros; Maiane Mendes da Silva, Ozielly; Vieira dos Santos, Wesley; Victor Hugo dos Santos, José; dos Santos Gonçalves, Andrea; Marra, Leandro Marciano. |
O objetivo deste trabalho foi avaliar o impacto de diferentes sistemas de uso nos teores e estoques de carbono orgânico total (COT) e a evolução diária e total do carbono mineralizável (C-CO2) em um Argissolo Vermelho Amarelo de textura arenosa. O estudo foi realizado no município de Eldorado, MS, em uma área de referência de Mata Nativa (MN), e em três áreas manejadas: pastagem permanente (PP), semeadura direta (SD) e área de Reserva Particular de Patrimônio Natural em processo de regeneração natural (RPPN). Amostras de solo das camadas 0,0-0,05, 0,05-0,10 e 0,10-0,20 m foram coletadas para avaliação de densidade do solo (Ds), teores de COT, com posteriores cálculos do índice de estratificação (IE), estoque de carbono (EstC) e variação do estoque de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil organic matter; Private Natural Heritage Reserve (PNHR); Conservation unit; Matéria orgânica do solo; Reserva Particular do Patrimônio Natural (RPPN); Unidade de conservação. |
Ano: 2022 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6991 |
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Xavier,Josias Henrique de Amorim; Cordeiro,Cesar Augusto Marcelino Mendes; Tenório,Gabrielle Dantas; Diniz,Aline de Farias; Paulo Júnior,Eugenio Pacelli Nunes; Rosa,Ricardo S.; Rosa,Ierecê Lucena. |
Reefs, mangroves and seagrass biotopes often occur in close association, forming a complex and highly productive ecosystem that provide significant ecologic and economic goods and services. Different anthropogenic disturbances are increasingly affecting these tropical coastal habitats leading to growing conservation concern. In this field-based study, we used a visual census technique (belt transects 50 m x 2 m) to investigate the interactions between fishes and microhabitats at the Mamanguape Mangrove-Reef system, NE Brazil. Overall, 144 belt transects were performed from October 2007 to September 2008 to assess the structure of the fish assemblage. Fish trophic groups and life stage (juveniles and adults) were recorded according to literature, the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Conservation unit; Ichthyofauna; Nursery habitats. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100011 |
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Adriano,Cavalleri; Romanowski,Helena Piccoli; Redaelli,Luiza Rodrigues. |
This study is a contribution to the knowledge of the thysanopterofauna of southern Brazil. From June 2003 to April 2004, seasonal field trips were conducted at the Parque Estadual de Itapuã (50º50'-51º05'W and 30º20'-30º27'S), in the county of Viamão, Rio Grande do Sul, to collect shoots with/without flowers of various plant species. The material was brought to the laboratory where the thrips were sorted. A total of 23 thrips species belonging to 15 genera and two families were obtained. Nine of the species resulted as new record for Rio Grande do Sul (*), and other two also for Brazil (**). The species sampled are as follows: Aneristothrips claripennis (Moulton, 1933)*, Aurantothrips orchidearum (Bondar, 1931)*, Ceratothripoides lagoenacollus (Moulton,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation unit; Faunal record; Neotropical thysanopterofauna. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000200009 |
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Brito,Leomara Pessoa; Araújo Lacerda,José Dantas; Araújo Soares,Cintia; Monteiro Júnior,Franklin Luís Carlos; Souza,Magno Chagas; Aguiar Fonseca e Souza,Áurea Izabel; Lima,Clenes Cunha; Rodrigues,Marcos. |
Abstract This study aimed to verify the impact of different methods of overcoming dormancy in the germination of Ipomoea cavalcantei seeds, in addition to surveying the biometric data of its seeds and fruits. Ripe fruits were randomly collected from the species' habitat, which is a unique ecosystem characterized by small vegetation and iron outcrops. For the biometric analyses, the weight, moisture content, length, width, and thickness of 100 fruits and 100 seeds were determined. To analyse the efficiency of overcoming seed dormancy, six different treatments were tested, including mechanical, physical, and chemical methods, and the resultant germinability, average germination time, and germination speed index were evaluated. Further, in order to estimate... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation unit; Dormancy; Ipomoea cavalcantei; Mining; Scarification. |
Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122022000100081 |
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Zanatta, Naiara; Universidade Estadual de Maringá; Cionek, Vivian de Mello; Universidade Estadual de Maringá; Benedito, Evanilde; Universidade Estadual de Maringá. |
This study aimed to characterize the reproductive strategies of fish from first order streams. Samplings were performed every three months from June 2008 to March 2009, using electric fishing at three streams: Conceição, Scherer and Jurema, located in the municipalities of Diamante do Norte and Amaporã, Paraná State, Brazil. We obtained the total weight (g), standard or total length (cm), sex and maturation stage for each specimen. Limnological data were obtained with portable equipments. The minimum length at first maturation was established for each population, and reproduction period was determined by analyzing the distribution of maturation stages. The sex ratio was obtained and tested (X2) for significant differences. Eight species were analyzed and... |
Tipo: Reprodução |
Palavras-chave: 2.00.00.00-6 upper Paraná river basin; Sex ratio; Conservation unit; Reproductive stages 2.05.02.00-1. |
Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/10932 |
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SANTOS,LIVANIO C. DOS; NASCIMENTO,WHANDENSON M. DO; MATOS,HELAINE S.; PINHEIRO,ALLYSSON P.; SILVA,JOSÉ R.F.. |
Abstract Freshwater crabs are important components of aquatic ecosystems; however, their distributions are restricted because of characteristics of their life history, which hinder conservation strategies. Fredius reflexifrons is a widely distributed freshwater crab of the Amazon basin with relictual occurrences in small wetlands on the Planalto da Ibiapaba in Northeastern Brazil. Habitat degradation, destruction of forest patches, channeling of water bodies, and the use of land for legume cropping can seriously impact the species by leading to the extinction of its relic populations, which have limited distributions in the Área de Proteção Ambiental (APA; Environmental Protection Area) Bica do Ipu of the Planalto da Ibiapaba. The objectives of this study... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachyura; Conservation unit; Northeastern semiarid region; Relictual distribution. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100708 |
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MENDONÇA,JOCEMAR T.; PEREIRA,ALINEIDE L.C.. |
Gillnetting is one of the most practiced fishing methods adopted in the South of Brazil and has been increasingly expanding over the last years. This paper presents the characterization of the activity and discusses its management, in accordance to results from the discussions on the development of regulations on net fisheries in the South Coast Marine Protected Area (APAMLS) in the state of São Paulo. Gillnet fleets are formed by small-scale boats, with low autonomy, and lower fishing capacity, when compared to boats from other ports in the South and Southeast. However, the number of fishing units is high, reaching 1,709 units operating in the South coast of São Paulo in 2010. This kind of fleet uses several types of gillnets, and the activity may be... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation unit; Co-management; Brazil; Gillnet; Fishery assessment; APA Marine South. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301227 |
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Smith,Welber Senteio; Biagioni,Renata Cassemiro; Halcsik,Letícia. |
The Floresta Nacional de Ipanema is located on the southeast of the state of São Paulo, Brazil, and belongs to the cities of Araçoiaba da Serra, Iperó and Capela do Alto. It extends over an area of 5,069 ha surrounded by several streams, small lakes, the Ipanema river and the Hedberg dam. The fish species in this area were sampled between 1993 and 2012 in several isolated studies, with the use of gill nets and sieves. Fifty species of fish were registered, 43 native and 7 non-native (Cyprinus carpio, Piaractus mesopotamicus, Brycon cephalus, Triportheus nematurus, Clarias gariepinus, Tilapia rendalli and Poecilia vivipara), distributed in seven Orders, 21 Families and 41 Genera. The present study aimed at cataloguing the fish species in the Ipanema... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floresta Nacional de Ipanema; Ichthyofauna; Inventory; Fish; Conservation unit. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200175 |
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Registros recuperados: 16 | |
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