|
|
|
| Registros recuperados: 574 | |
|
|
| Sudtongkong, Chanyut; Asian Institute of Technology; Rajamangala University of Technology Srivijaya; chanuyts@gmail.com; Webb, Edward L.; Asian Institute of Technology; Department of Biological Sciences, National University of Singapore; ted.webb@nus.edu.sg. |
| In Thailand, mangrove forests are claimed for state management, although it is widely recognized that coastal communities access and manage those forests. Skepticism persists within Thai government circles about whether coastal villages can sustainably manage and protect mangroves. This research presents evidence of successful mangrove conservation and management by two coastal villages in Trang province, southern Thailand. Using interdisciplinary methods including interviews, discussions, quantitative forest surveys, and institutional analysis, we describe the history of how these two communities gained rights to manage the mangrove forests, and the subsequent positive biological outcomes associated with their management. Local villages have crafted and... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Biodiversity; Collective action; Ecology; Forest management; Institutions; Management; Sustainability. |
| Ano: 2008 |
|
| |
|
|
| Danell, Kjell; Swedish University of Agricultural Sciences; kjell.danell@szooek.slu.se; Willebrand, Tomas; Swedish University of Agricultural Sciences; tomas.willebrand@szooek.slu.se; Baskin, Leonid; Institute of Ecology and Evolution, Russian Academy of Sciences; leonidBaskin@glasnet.ru. |
| Within the boreal zone, there are about 50 native mammalian herbivore species that belong to the orders Artiodactyla, Rodentia, and Lagomorpha. Of these species, 31 occur in the Nearctic and 24 in the Palaearctic. Only six species occur in both regions. Species of the family Cervidae have probably been, and still are, the most important group for man, as they provide both meat and hides. Pelts from squirrels, muskrats, and hares were commercially harvested at the beginning of the century, but have less value today. The semi-domestic reindeer in the Palaearctic produces meat and hides on a commercial basis. It is also used for milking, to a limited extent, as is the semi-domestic moose in Russia. The Siberian musk deer is used for its musk and is raised in... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Boreal forests; Conservation; Fluctuations; Herbivores; Human use; Mammals; Management; Populations; Variability.. |
| Ano: 1998 |
|
| |
|
| |
|
| |
|
| |
|
|
| McDaniel, Carrie J; Duke University Marine Laboratory; cjmcdaniel@hotmail.com; Crowder, Larry B; Duke University Marine Laboratory; lcrowder@duke.edu; Priddy, Jeffery A; Duke University Marine Laboratory; jpriddy@duke.edu. |
| In order to examine the scientific feasibility of area closures for sea turtle protection, we determined the spatial dynamics of sea turtles for the U.S. Gulf of Mexico by analyzing National Marine Fisheries Service (NMFS) aerial survey data in September, October, and November of 1992, 1993, and 1994. Turtle sightings were grouped into depth zones and NMFS fishery statistical zones, and strip transect methods were used to estimate the relative abundance of sea turtles in each subzone. Average shrimping intensity was calculated for each subzone for all months of 1992, 1993, and 1994, as well as for the months and locations of the aerial survey. The spatial overlap of sea turtle abundance and shrimping intensity suggested regions where interactions are... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Density estimates; Endangered species; GIS; Gulf of Mexico; Kemp's ridley; Management; Sea turtles; Shrimp fishing; Spatial dynamics; Strip transect methods. |
| Ano: 2000 |
|
| |
|
|
| Goatley, Christopher H. R.; College of Marine and Environmental Sciences, James Cook University; Australian Research Council Centre of Excellence for Coral Reef Studies; christopher.goatley@jcu.edu.au; Fox, Rebecca J.; College of Marine and Environmental Sciences, James Cook University; Australian Research Council Centre of Excellence for Coral Reef Studies; Division of Evolution, Ecology and Genetics, Australian National University; School of Life Sciences, University of Technology Sydney; rebecca.fox-1@uts.edu.au; Bellwood, David R.; College of Marine and Environmental Sciences, James Cook University; Australian Research Council Centre of Excellence for Coral Reef Studies; david.bellwood@jcu.edu.au. |
| Around the world, the decreasing health of coral reef ecosystems has highlighted the need to better understand the processes of reef degradation. The development of more sensitive tools, which complement traditional methods of monitoring coral reefs, may reveal earlier signs of degradation and provide an opportunity for pre-emptive responses. We identify new, sensitive metrics of ecosystem processes and benthic composition that allow us to quantify subtle, yet destabilizing, changes in the ecosystem state of an inshore coral reef on the Great Barrier Reef. Following severe climatic disturbances over the period 2011-2012, the herbivorous reef fish community of the reef did not change in terms of biomass or functional groups present. However, fish-based... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Disturbances; Ecosystem state; Herbivory; Management; Monitoring; Processes; Resilience; Sediment; Thresholds. |
| Ano: 2016 |
|
| |
|
| |
|
|
| Dale, Virginia H; Oak Ridge National Lab; dalevh@ornl.gov; Lowrance, Richard; USDA-ARS Southeast Watershed Research Laboratory; Richard.Lowrance@ars.usda.gov; Mulholland, Patrick; Oak Ridge National Laboratory; mulhollandpj@ornl.gov; Robertson, G Phillip; W.K. Kellogg Biological Station, Dept. of Crop and Soil Sciences, and Great Lakes Bioenergy Research Center; Robertson@kbs.msu.edu. |
| The establishment of bioenergy crops will affect ecological processes and their interactions and thus has an influence on ecosystem services provided by the lands on which these crops are grown. The regional-scale effects of bioenergy choices on ecosystem services need special attention because they often have been neglected yet can affect the ecological, social, and economic aspects of sustainability. A regional-scale perspective provides the opportunity to maximize ecosystem services, particularly with regard to water quality and quantity issues, and also to consider other aspects of ecological, social, and economic sustainability. We give special attention to cellulosic feedstocks because of the opportunities they provide. |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Bioenergy crops; Ecosystem services; Landscape; Management. |
| Ano: 2010 |
|
| |
|
|
| Sanguinetti,Javier; Buria,Leonardo; Malmierca,Laura; Valenzuela,Alejandro E. J.; Núñez,Cecilia; Pastore,Hernán; Chauchard,Luis; Ferreyra,Nicolás; Massaccesi,Guillermina; Gallo,Emilce; Chehébar,Claudio. |
| Invasive alien species management in Patagonia, Argentina: Prioritization, achievements and science-policy integration challenges identified by the National Parks Administration: Invasive alien species are a threat to biodiversity. Management options encompass prevention, early detection, eradication, control, exclusion and even"no action." More technical information is needed to achieve complex management actions successfully. In addition, managers and researchers address the problem with different approaches. Managers seek to prioritize management actions, and for researchers, these species are an opportunity to study basic and/or theoretical aspects, but not always applied to management. However, the management strategies offer a unique opportunity for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological invasions; Conservation; Control; Eradication; Management; Planning; Protected areas. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000200007 |
| |
|
| |
|
|
| Lamparelli,Rubens A. C.; Johann,Jerry A.; Santos,Éder R. dos; Esquerdo,Julio C. D. M.; Rocha,Jansle V.. |
| This study aimed at identifying different conditions of coffee plants after harvesting period, using data mining and spectral behavior profiles from Hyperion/EO1 sensor. The Hyperion image, with spatial resolution of 30 m, was acquired in August 28th, 2008, at the end of the coffee harvest season in the studied area. For pre-processing imaging, atmospheric and signal/noise effect corrections were carried out using Flaash and MNF (Minimum Noise Fraction Transform) algorithms, respectively. Spectral behavior profiles (38) of different coffee varieties were generated from 150 Hyperion bands. The spectral behavior profiles were analyzed by Expectation-Maximization (EM) algorithm considering 2; 3; 4 and 5 clusters. T-test with 5% of significance was used to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crop monitoring; Spectral behavior; Management; Orbital remote sensing. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100019 |
| |
|
|
| Medeiros,Jeane E de; Mariano,Rosa de LR; Pedrosa,Elvira MR; Silveira,Elineide B da. |
| We obtained 61 rhizobacterium isolates from rhizosphere soil samples collected in melon commercial fields located in Mossoró, Rio Grande do Norte State, Brazil. These isolates, along with 56 endophytic bacteria from the Collection of Cultures of the Plant Bacteriology Laboratory of the Universidade Federal Rural de Pernambuco, were tested for controlling Meloidogyne incognita race 2 in melon. To infest the soil with nematodes, 1000 eggs of Meloidogyne incognita race 2 per plant were placed in pots where seedlings of the yellow-type melon, cultivar AF 682, were growing for 10 days. Two days before, 20 mL of bacterial suspension (0.7 OD570nm) were poured into each pot. After 60 days, fresh root biomass, gall index, egg mass, and the nematode reproduction... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meloidogyne; Cucumis melo; Rhizobacteria; Endophytic bacteria; Management. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300010 |
| |
|
|
| Vieira,Débora de FA; Clemente,Flávia Maria VT. |
| ABSTRACT Farmers and the rural extension service in Planaltina, in the Federal District, an important pole of tomato and sweet pepper production in the Brazilian Midwest region, have been observing decreases in yield in protected cultivation lately. Yields are getting back to those registered in initial years of the system’s implementation in the region. Besides, prices paid to farmers dropped due to the retreat in fruit and vegetable consumption by Brazilians registered since 2015, triggering a crisis in the region. The so-called “Harvest-Expedition on Protected Cultivation” brought together Embrapa (Brazilian Agricultural Research Corporation), Emater-DF (Federal District Agency for Technical Assistance and Rural Extension) and SEAGRI-DF (State... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diagnosis; Tomato; Sweet pepper; Management; Scenarios. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400431 |
| |
|
| |
|
| |
|
| |
|
|
| EUCLIDES FILHO, K.. |
| Neste trabalho procurou-se apresentar e discutir, de forma ampla, os sistemas de produção de gado de corte e seus principais componentes, salientando-se algumas alternativas tecnológicas, especialmente aquelas relacionadas com o manejo do rebanho e o melhoramento genético, de contribuir para o atendimento do desafio de produzir carne bovina conforme as demandas impostas pelo novo conceito de pecuária moderna. Neste novo enfoque, a pecuária e uma atividade competitiva, sustentável, rentável, integrada com outros segmentos da cadeia produtiva e, em alguns casos, com outros sistemas de produção de gado de corte e que resulte em produtos finais que atendam as exigências do mercado. São ainda apresentados e discutidos alguns custos relacionados com a... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bovino de corte; Melhoramento genético; Globalização; Brasil; Feeding; Management; Selection.; Alimentação; Manejo; Seleção; Sistema de Produção.; Brazil; Beef cattle; Breeding; Farming systems; Globalization.. |
| Ano: 2000 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/323697 |
| |
|
| |
|
|
| SILVA, A. de S.; PORTO E. R.; BRITO, L. T. de L.; MONTEIRO, M. A. R.. |
| Um experimento conduzido nos anos agricolas de 1982 a 1985, no campo experimental de manejo da Caatinga, EMBRAPA-CPATSA, avaliou-se tres sistemas de captacao de agua de vhuva "in situ", metodos: Guimaraes Duque, CP-Mexico e Sulcos e Camalhoes, em curva de nivel, comparando-os com o sistema tradicional de preparo do solo e plantio, em covas e no plano. O delineamento foi em blocos ao acaso com oito repeticoes, instalado em escala operacional. As condicoes climaticas influenciaram ao nivel de 1,0% de probabilidade sobre a produtividade do caupi, e a interacao clima x tratamento foi significativa ao nivel de 5,0% de probabilidade. Nos anos de precipitacoes pluviometricas espaco-temporatis irregulares, fato comum na regiao semi-arida brasileira, os metodos... |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Captacao in situ; Sequeiro; Regiao semi-arida; Management; In situ rainfall water; Rainfed agriculture; Semi-arid region; Solo; Água; Agricultura; Manejo; Soil; Water. |
| Ano: 1989 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133220 |
| |
| Registros recuperados: 574 | |
|
|
|
