SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Heimlich, Ralph E.; Wiebe, Keith D.; Claassen, Roger; Gadsby, Dwight M.; House, Robert M..

Society has recently increased the value it places on the services that wetlands provide, including water quality improvements, flood control, wildlife habitat, and recreation. However, owners of wetlands are often unable to profit from these services because the benefits created are freely enjoyed by many. This report examines differences between public and private incentives regarding wetlands. Federal wetland policy has shifted in recent decades--from encouraging wetland conversion to encouraging wetland protection and restoration--in an effort to balance public and private objectives. The report assesses the need for continued wetlands protection policies as the United States approaches achieving the goal of no net loss of wetlands.

Tipo: Report

Palavras-chave: Wetlands; "no net loss"; Swampbuster; Conservation; Restoration; Land Economics/Use.

Ano: 1998

URL: http://purl.umn.edu/34043

Iowa Wetlands: Perceptions and Values

Azevedo, Christopher D.; Herriges, Joseph A.; Kling, Catherine L..

With major funding from the U.S. Environmental Protection Agency, researchers at Iowa State University developed and administered a survey of Iowans' usage and attitudes concerning wetlands. This report summarizes some of the primary findings from the survey.

Evidence on the Amenity Value of Wetlands in a Rural Setting

Palavras-chave: Wetlands; Economic valuations; Recreation demand; Land Economics/Use.

Ano: 2000

URL: http://purl.umn.edu/18672

Bin, Okmyung; Polasky, Stephen.

This study uses a hedonic property price method to estimate how wetlands affect residential property values in a rural area. The study utilizes wetland inventory data coupled with extensive property sales records between January 2000 and September 2004 from Carteret County, NC. Our results indicate that i) a higher wetland percentage within a quarter mile of a property, ii) closer proximity to the nearest wetland, and iii) larger size of the nearest wetland are associated with lower residential property values. These results contrast with previous hedonic studies that use data from urban areas, which found positive associations between wetland and property values. The amenity value of wetlands appears to depend at least as much on the characteristics of...

Tipo: Journal Article

Palavras-chave: Hedonic prices; Housing market; Rural area; Wetlands; D12; Q24; Q26; R21.

Ano: 2005

URL: http://purl.umn.edu/42789

The economic cost of wetland destruction

Schmidt, Carmel Elizabeth.

Wetlands are often refereed to as the ‘kidney of the river’, but what is the value of the water filtration they provide, and what is the cost of wetland destruction? This paper determines the economic value of wetlands for water filtration. It demonstrates that wetlands are of considerable economic value, even where the volume of water filtered is in excess of that required for domestic consumption. It argues that if legislation required those who destroy natural wetlands to replace the water filtration process the wetlands once provided, it would be necessary to construct water filtration plants at significant cost.

Tipo: Conference Paper or Presentation

Palavras-chave: Ecosystem services; Wetlands; Water filtration; Valuation; Environmental Economics and Policy; Land Economics/Use; Political Economy.

Ano: 2008

URL: http://purl.umn.edu/5985

Does Scale Matter? Cost Effectiveness of Agricultural Nutrient Abatement When Target Level Varies

Inventory of water storage types in the Blue Nile and Volta River Basins

Iho, Antti.

Agricultural production is facing high requirements on nutrient runoff reduction. Furthermore, the reductions should by done efficiently. For instance, the European Water Framework Directive calls for cost-effectiveness from schemes of measures to fulfill the target of good water quality in European river basins. In this paper we analyse the implications of target level variation on efficiency properties of agricultural phosphorus abatement. We analyse the robustness of cost-effectiveness as the scheme of measures is adopted from another, identical river basin with different target level on total phosphorus abatement. We find that even between homogeneous regions the cost-effective scheme of measures is unique for all target levels of reduction, and that...

Tipo: Conference Paper or Presentation

Palavras-chave: Cost-effectiveness; Phosphorus abatement; Buffer strips; Wetlands; Fertilizer use; Water framework directive; Crop Production/Industries; Resource /Energy Economics and Policy; Q18; Q25.

Ano: 2005

URL: http://purl.umn.edu/24701

Johnston, Robyn M.; McCartney, Matthew P..

For agriculture there is a continuum of water storage options, ranging from groundwater aquifers, soil water, natural wetlands and small ponds and tanks to large reservoirs. In any situation each of these has its own niche in terms of technical feasibility, socioeconomic sustainability and impact on public health and the environment. Planning storage requires insight into impending needs and also a good understanding of what already exists and what was, and was not, successful, in the past. This report provides an inventory of existing and prospective water storage in the Ghanaian Volta and the Ethiopian Blue Nile basins. It provides as much quantitative data as possible, but highlights both the dearth of readily available information and the lack of...

Ask a Hypothetical Question, Get a Valuable Answer?

Palavras-chave: Water storage; River basins; Reservoirs; Ponds; Tanks; Groundwater; Soil moisture; Wetlands; Environmental Economics and Policy; Farm Management.

Ano: 2010

URL: http://purl.umn.edu/113608

Azevedo, Christopher D.; Herriges, Joseph A.; Kling, Catherine L..

This paper models the recreation demand for Iowa wetlands, combining survey data on both actual usage patterns (i.e., revealed preferences) and anticipated changes to those patterns under hypothetical increases in trip costs (i.e., stated preferences). We formulate and test specific hypotheses concerning potential sources of bias in each data type. We consistently reject consistency between the two data sources, both in terms of implied wetland values and underlying preference parameters. Careful attention is paid to the interpretations of the test results, noting particularly how the interpretation of the same results can vary with the "school of thought" of the reader.

Yellow river comprehensive assessment: Basin features and issues – Collaborative research between International Water Management Institute (IWMI) and Yellow River Conservancy Commission (YRCC)

Palavras-chave: Revealed preference; Stated preference; Recreation; Wetlands; Research Methods/ Statistical Methods.

Ano: 2000

URL: http://purl.umn.edu/18418

Zhu, Zhongping; Giordano, Mark; Cai, Ximing; Molden, David J.; Hong, Shangchi; Zhang, Huiyan; Lian, Yu; Li, Huian; Zhang, Xuecheng; Zhang, Xinghai; Xue, Yunpeng.

Environmental and social values of river water: examples from the Menik Ganga, Sri Lanka.

Palavras-chave: Flood control; Water scarcity; Environmental degradation; Groundwater; Social aspects; River basin development; Water use efficiency; Crop production; Wetlands; Water pollution; Water policy; Reforms; Water quality; Flood plains; Crop Production/Industries; Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty.

Ano: 2003

URL: http://purl.umn.edu/92661

Dissanayake, Priyanka; Smakhtin, Vladimir U..

Many decisions on water allocation in river basins are made on economic grounds. Environmental and social benefits of water should also be considered in river basin management, and attempts should be made to value them similarly. This is not a straightforward task and very few studies have directly addressed this issue to date. In this paper, the Menik Ganga (River) in southern Sri Lanka is used as a case study to attempt and evaluate the costs and benefits of environmental water allocations, referred to as ‘environmental flows’ (EF). In this study, a broad definition of EF is used: the components of EF evaluated include the requirements of the religious festival, the requirements of the Yala National Park, the requirements of the Pilinnawa Coastal Wetland...

Measuring Ecosystem Service Benefits: The Use of Landscape Analysis to Evaluate Environmental Trades and Compensation

Palavras-chave: Rivers; Ecosystems; Wetlands; Wildlife; Fisheries; Water allocation; Water requirements; Case studies; Economic evaluation; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/91876

Boyd, James; Wainger, Lisa.

Ecosystem compensation and exchange programs require benefit analysis in order to guarantee that compensation or trades preserve the social benefits lost when ecosystems are destroyed or degraded. This study derives, applies, and critiques a set of ecosystem benefit indicators (EBIs). Organized around the concept of ecosystem services and basic valuation principles we show how GIS mappings of the physical and social landscape can improve understanding of the ecosystem benefits arising from specific ecosystems. The indicator system focuses on landscape factors that limit or enhance an ecosystem's ability to provide services and that limit or enhance the expected value of those services. The analysis yields an organized, descriptive, and numerical depiction...

USING A CHOICE EXPERIMENT TO ESTIMATE THE NON-USE VALUES OF WETLANDS: THE CASE OF CHEIMADITIDA WETLAND IN GREECE

Palavras-chave: Ecosystem valuation; Wetlands; Spatial analysis; Landscape analysis; Environmental Economics and Policy; Q0; Q3.

Ano: 2003

URL: http://purl.umn.edu/10738

Birol, Ekin; Karousakis, Katia; Koundouri, Phoebe.

Despite wetlands being amongst the Earths most productive ecosystems, they have been degraded and lost at an unprecedented rate globally, especially throughout the last century. In recognition of the importance of the crucial ecological functions and economic benefits they provide, international efforts, such as the Ramsar Convention, and European Union level efforts, such as the Water Framework Directive (2000/60/EC), are now in place to ensure conservation, sustainable management and improvement of the remaining wetlands. This paper aims to assist policy makers in formulating efficient, effective and sustainable wetland conservation and management policies by providing them with the results of a valuation study using the Cheimaditida wetland in Greece...

Agricultural water management in a water stressed catchment: lessons from the RIPARWIN project

Palavras-chave: Choice experiment; Non-use values; Wetlands; Conditional logit model; Random parameter logit model; Land Economics/Use.

Ano: 2005

URL: http://purl.umn.edu/31934

McCartney, Matthew P.; Lankford, Bruce A.; Mahoo, Henry F..

With contributions from Julien Cour, Reuben Kadigi, Japhet Kashaigili, Magayane Machibya, Abraham Mehari, Sylvie Morardet, Kossa Rajabu, Charles Sokile, Siza Tumbo, Barbara van Koppen, Thalia Vounaki and Daniel Yawson

Tipo: Report

Palavras-chave: River basin management; Water stress; Irrigation programs; Irrigation management; Irrigation efficiency; Water use; Water allocation; Wetlands; Water rights; Water law; Economic aspects; Water rates; User charges; Water users associations; Decision support tools; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/37668

Assemblage of drosophilids (Diptera, Drosophilidae) inhabiting flooded and nonflooded areas in the extreme South of Brazil

Rev. Bras. entomol.

Duarte,L.B.; Gottschalk,M.S.; Robe,L.J..

ABSTRACT Several studies on the potential use of drosophilid assemblages as bioindicator systems have been carried out in the last years. Nevertheless, the successful application of these organisms in these systems requires adequate filling of several knowledge gaps. In this sense, little is known about drosophilid assemblages in wetlands and flooded areas. The present study provides the first survey of drosophilid species inhabiting such environments in the extreme South of Brazil and compares general beta-diversity patterns between assemblages of flooded versus nonflooded areas. The specimens were collected with banana-baited traps, and the assemblages recovered in eight wetlands of the southernmost coast of Brazil were compared to those recovered from...

Vertical and time distribution of Diplopoda (Arthropoda: Myriapoda) in a monodominant forest in Pantanal of Mato Grosso, Brazil

Palavras-chave: Beta-diversity; Bioindicator species; Gamma-diversity; Swamps; Wetlands.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000100029

Battirola,Leandro D.; Marques,Marinêz I.; Rosado-Neto,Germano H.; Pinheiro,Tamaris G.; Pinho,Nelsina G. C..

In this study different sampling techniques for Diplopoda in soil, tree trunks and canopies were applied in an integrated way in the northern region of the Pantanal of Mato Grosso, Brazil. This was done in order to assess the relationship within the fauna in each forest strata, as well as its richness and temporal distribution. In all these habitats there were a total of 1,354 diplopods, distributed in four taxonomic orders, with Polyxenida being predominant over Polydesmida, Spirostreptida and Spirobolida. The largest representation was found on the trunks of the Vochysia divergens (721 ind.), intercepted by tree photoecletors, whereas in the canopies sampling reached only 65 specimens. In the edaphic stratum 568 diplopods were captured, most with the use...

Richness, abundance and microhabitat use by Ardeidae (Aves: Pelecaniformes) during one seasonal cycle in the floodplain lakesof the lower Amazon River

Palavras-chave: Diplopoda; Ecology; Stratification; Wetlands.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300012

Ferreira,Giulianne Sampaio; Santos,Danilo Augusto Almeida dos; Lopes,Edson Varga.

ABSTRACT The Amazon floodplains become periodically submerged as result of seasonal changes in the water levels throughout the year. These changes influence the availability of microhabitats and consequently the abundance of organisms in these ecosystems. In this study we investigated 1) how changes in the water level affect the richness and abundance of ardeid birds in the lowland floodplain lakes of the lower Amazon River, and 2) the microhabitats used by these birds throughout the seasonal cycle. Ten lakes were surveyed at each of the four phases of the seasonal cycle. In total, 3,280 individuals of 11 species were recorded. Of these, eight species occurred in the four phases, and three were observed in one or two phases. In the analysis including the...

Phenology of Promestosoma boggianii (Diplopoda: Polydesmida: Paradoxosomatidae) in a Neotropical floodplain

Palavras-chave: Amazonian; Aquatic macrophytes; Ecological partitioning; Waterbirds; Wetlands.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100322

Santos-Silva,Lorhaine; Pinheiro,Tamaris G.; Marques,Marinêz I.; Battirola,Leandro D..

ABSTRACT Studies that address biodiversity and its supporting mechanisms in different ecosystems are fundamental to understanding the relationships between species and the prevailing environmental conditions within each habitat type. This study presents information on the phenology of Promestosoma boggianii (Silvestri, 1898) and its association with seasonal flood and dry events in a floodplain of Mato Grosso’s northern Pantanal region, Brazil. Sampling was carried out in three areas located between the Bento Gomes and Cuiabá rivers, on the Porto Cercado Road, Poconé-MT. Each sample area was composed of two treatments: (I) floodable habitats and (NI) non-floodable habitats. Three quadrats (10 x 10 m) were established within each treatment, with sampling...

Spider assemblage (Arachnida: Araneae) associated with canopies of Vochysia divergens (Vochysiaceae) in the northern region of the Brazilian Pantanal

Palavras-chave: Biodiversity; Conservation; Myriapoda; Wetlands.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100321

Battirola,Leandro D.; Batistella,Daniel A.; Rosado-Neto,Germano H.; Brescovit,Antonio D.; Marques,Marinêz I..

ABSTRACT This study describes the composition and temporal variation of the spider assemblage (Arachnida: Araneae) associated with canopies of Vochysia divergens Pohl. (Vochysiaceae) in the northern region of the Brazilian Pantanal. Three V. divergens plants were sampled in 2004, at each seasonal period of the northern Pantanal (high water, receding water, dry season and rising water), using thermonebulization of the canopies with insecticide, totaling 396 m2 of sampled canopies. Analysis of abundance and richness of spider families were based on Non-Metric Multidimensional Scaling (NMDS) and Variance Analysis (ANOVA and MANOVA). A total of 7,193 spiders were collected (6,330 immatures; 88.0%; 863 adults, 12.0%) distributed in 30 families. Araneidae (1,676...

First record and ecological features of Goeldichironomus petiolicola (Diptera: Chironomidae) mining Eichhornia crassipes in the Middle Paraná River floodplain, Argentina

Palavras-chave: Invertebrates; Diversity; Forest canopy; Seasonality; Wetlands.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000400700

Rev. Soc. Entomol. Argent.

Montalto,Luciana; Capello,Soledad; Paggi,Analía C..

The first records from Argentina of larvae of Goeldichironomus petiolicola Trivinho-Strixino & Strixino mining in Eichhornia crassipes (Martius) Solms petioles in wetlands of the Paraná River floodplain were analyzed. G petiolicola larvae and pupae were collected seasonally during 2005 from stands of E. crassipes and bottom sediment samples in floodplain habitats. Larvae inside E. crassipes petioles were reared with the purpose of obtaining their complete life cycle. G. petiolicola was the most abundant chironomid species living inside E. crassipes petioles; the III and IV instar larvae and pupae were found during all the seasons while the I and II instar larvae were not found. The highest average densities of G. petiolicola larvae inside the E....