Valuing mangrove resources in Kosrae, Micronesia

1998 ◽  
Vol 3 (4) ◽  
pp. 471-490 ◽  
Author(s):  
ROSAMOND NAYLOR ◽  
MARK DREW
Keyword(s):  
Ecosystem Services ◽  
Revealed Preference ◽  
Household Survey ◽  
Mangrove Ecosystems ◽  
Poor Households ◽  
Direct Benefits ◽  
Wide Range ◽  
Use Values ◽  
Contingent Valuation Methods ◽  
Direct Use

Mangrove ecosystems provide a wide range of market and non-market benefits to coastal communities in the developing world, yet they remain undervalued and overexploited in most regions where they are found. This paper analyzes the use and value of mangroves in Kosrae, Micronesia, where the population is largely dependent on the swamps for fuelwood and other ecosystem services, such as erosion control, storm protection, and nutrient flows to shoreline fisheries. The results show that mangroves on the island are worth between $666 thousand and $1 million per year (1996 prices) based on the net value of marketable products alone. In addition, household survey data suggest that the local people are willing to pay between $1 million and $1.26 million per year to protect and use mangrove swamps indefinitely. The results thus indicate that the population places some premium on the existence and indirect ecosystem services of mangroves, over and above the direct use values. Moreover, respondents generally favored—and were willing to pay more for—a tax system designed to manage and preserve the mangroves' direct and indirect services over a permit system focused only the allocation of direct use over time. Valuation analyses using revealed preference and contingent valuation methods lead to additional conclusions regarding the distribution of benefits, with poor households deriving more direct benefits from—but willing to pay less to protect—mangrove ecosystems.

scholarly journals Valuasi Ekonomi Ekosistem Mangrove di Desa Timbulsloko Kecamatan Sayung Kabupaten Demak

2021 ◽  
Vol 10 (1) ◽  
pp. 42-50
Author(s):  
Vita Fitriana Mayasari ◽  
Rudhi Pribadi ◽  
Nirwani Soenardjo
Keyword(s):  
Economic Valuation ◽  
Economic Value ◽  
Mangrove Ecosystem ◽  
Use Value ◽  
Existence Value ◽  
Mangrove Ecosystems ◽  
Use Values ◽  
Total Economic Value ◽  
Direct Use ◽  
Descriptive Method

Ekosistem mangrove memiliki fungsi fisik, ekologi, dan ekonomi bagi manusia. Pemanfaatan mangrove yang tidak konservatif dapat menimbulkan kerusakan mangrove dan abrasi. Pemulihan ekosistem mangrove dengan rehabilitasi dan konservasi dapat meningkatkan pendapatan masyarakat. Peningkatan pendapatan masyarakat ini mendorong diperlukannya perhitungan valuasi ekonomi terhadap ekosistem mangrove. Tujuan dari penelitian ini adalah mengetahui total use value dan non use value ekosistem mangrove di Desa Timbulsloko, Kecamatan Sayung, Kabupaten Demak. Metode yang digunakan dalam penelitian ini adalah metode deskriptif untuk menghimpun data monografi terkait ekosistem mangrove dan metode eksploratif untuk penentuan use value dan non use value ekosistem mangrove. Responden penelitian adalah 30 orang terdiri dari 29 masyarakat dan 1 orang perangkat desa yang berkaitan dengan keberadaan ekosistem mangrove secara langsung dan tidak langsung. Penelitian dilakukan pada Bulan September – Desember 2017. Hasil penelitian menunjukan nilai total ekonomi ekosistem mangrove di Desa Timbulsloko adalah Rp 164.897.377,1/ha/tahun atau Rp 12.703.693.939/ tahun dengan luasan ekosistem mangrove 77,04 ha. Nilai tersebut terdiri dari total use value dan non use value dari sektor perikanan dan kelautan yang terkait dengan ekosistem mangrove. Use value sebesar Rp 11.095.403.189/tahun atau Rp 144.021.329/ha/tahun. Use value meliputi nilai guna langsung, nilai guna tidak langsung, dan nilai pilihan. Sedangkan non use value sebesar Rp 1.608.290.750/tahun atau Rp 20.876.048,16/ha/tahun. Non use value meliputi nilai keberadaan dan nilai warisan.   Mangrove ecosystem has physical, ecological and economical functions for humans. Non conservative use of mangrove can cause mangrove damage and abrasion. Restoration of mangrove ecosystems with rehabilitation and conservation can increase community income. The increasing of community income can cause the need of economic valuation calculations for the mangrove ecosystem. The purpose of this study was to determine the total of use value and non-use value of the mangrove ecosystem in Timbulsloko Village, Sayung District, Demak Regency. The method used in this study was a descriptive method to collect monograph data related to mangrove ecosystems and an exploratory method for determining use value and non-use value of the mangrove ecosystem. The research respondents were 30 residents consisting of 29 communities and 1 village officer who were directly and indirectly related to the existence of the mangrove ecosystem. This researched was conducted in September – December 2017. The result showed that the total economic value of the mangrove ecosystem in Timbulsloko Village was Rp. 164,897,377.1 / ha / year or Rp. 12,703,693,939 / year in 77.04ha of mangrove ecosystem area range. This value consists of the total use value and non-use value from the fisheries and marine sector which associated with the mangrove ecosystem. The use value of IDR 11,095,403,189 / year or IDR 144,021,329 / ha / year. The use values include direct use value, indirect use value, and option value. Meanwhile, the non-use value is IDR 1,608,290,750 / year or IDR 20,876,048.16 / ha / year. The non-use values include existence value and bequest value.  

Shrinking Ecosystem Services in a Sinking Delta – Maintaining livelihoods in the Sundarbans Biosphere Reserve, India

2021 ◽  
Author(s):  
Oindrila Basu ◽  
Isha Das ◽  
Sudipa Pal ◽  
Tim Daw ◽  
Sugata Hazra
Keyword(s):  
Ecosystem Services ◽  
Fresh Water ◽  
Land Use Planning ◽  
Biosphere Reserve ◽  
Household Survey ◽  
Poor People ◽  
Shore Protection ◽  
Seed Collection ◽  
Poor Households ◽  
Per Capita

<p>A range of ecosystem services provide critical direct benefits to poor households living in the Sundarban Biosphere Reserve in India. These include artisanal fishing in creeks and rivers, crab collection, prawn seed collection, brackish and fresh-water aquaculture, fuel, fodder and honey collection from forests, and marine fishing in mechanized and non mechanized boats. The roles of these ecosystem services are largely invisible to official data. Triangulating between available statistics, key informant interviews and a new household survey, we estimate that nearly 30% of the 4.6 million population, mostly poor people rely on these ecosystem services. Ecosystem services supplement traditional rainfed agriculture, providing over 30% of household livelihood requirements. The availability of these ecosystem services is declining in per-capita terms due to the rapidly rising population in addition to ecosystem degradation. The area and health of mangrove is affected by sea level rise, differential subsidence, reduction of sediment and freshwater supply due to human obstruction and abstraction, increased salinity, high intensity cyclones, monsoon instability and temperature rise. Under a business as usual scenario, sharp decline of provisioning and regulating ecosystem services available per capita by 2030 is envisaged resulting in the threatening to increase poverty in the Biosphere Reserve. We review policy options to protect and enhance these critical ecosystem services for poor households including restoration of the estuarine mangrove habitat through river reconnection and rejuvenation and  fresh water provisioning and desalination, scientific plantation and shore protection using building with nature concept, regulating marine fishery and aquaculture practices , land use planning and population realignment.</p>

Using direct use values for economic valuation of wetland ecosystem services: a case of Songore wetland, Zimbabwe

GeoJournal ◽  
2018 ◽  
Vol 85 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Precious Mahlatini ◽  
Anthea Hove ◽  
Lioli F. Maguma ◽  
Abel Chemura
Keyword(s):  
Ecosystem Services ◽  
Economic Valuation ◽  
Wetland Ecosystem ◽  
Use Values ◽  
Direct Use

scholarly journals Valuing Fishing Activity of the Deepor Beel

2020 ◽  
Vol 7 (4) ◽  
pp. 122-132
Author(s):  
Jyotisikha Dutta ◽  
Archana Sharma
Keyword(s):  
Net Present Value ◽  
Market Price ◽  
Present Value ◽  
Fishing Activity ◽  
Goods And Services ◽  
Brahmaputra Valley ◽  
Wetland Resource ◽  
Wide Range ◽  
Use Values ◽  
Direct Use

The Deepor Beel is one of the large and important riverine wetlands in the Brahmaputra valley of Assam, India. The only Ramsar site of Assam, the Beel is one of the richest biodiversity grounds in the wetland eco-system of the state. The Deepor Beel is the hub of a wide range of organisms. It provides various goods and services directly or indirectly to the villages near to the beel for their livelihood. Despite its contribution to society and ecology as a whole, these goods and services of the Beel are undervalued in the policy provisions. The prime reason for this undervaluation is that most of the goods and services of the Beel are non-marketable and those goods which have direct use-values are never valued in an economic term. To fill the gap partially, this study tries to estimate the direct use values of the Deepor Beel. Among the goods the Deepor Beel provides, fishing can be considered one of the economically significant goods. Fishing provides livelihood directly to 825 households living near the Beel. Therefore, this research tries to estimate the direct use value of fishing in the Deepor Beel. A market price approach is applied to estimate the value of this wetland resource. Net Present Value (NPV) of fishing is also estimated. The total estimated value of fishing is INR 11,64,69,375 per annum. The estimated value of fishing per hectare is INR 29,015.78 per annum. The estimated Net Present Value (NPV) of fishing is INR 97,05,78,125. This valuation is important to draw the attention of the policymakers for resource investment in conserving the Beel for continued benefits.

Nanoparticles Functionalized with Venom-Derived Peptides and Toxins for Pharmaceutical Applications

2020 ◽  
Vol 21 (2) ◽  
pp. 97-109 ◽  
Author(s):  
Ana P. dos Santos ◽  
Tamara G. de Araújo ◽  
Gandhi Rádis-Baptista
Keyword(s):  
Oral Absorption ◽  
Current Data ◽  
Pharmacological Activities ◽  
Venom Peptides ◽  
Essential Components ◽  
Wide Range ◽  
Different Types ◽  
Direct Use ◽  
Animal Venoms ◽  
Pharmaceutical Biotechnology

Venom-derived peptides display diverse biological and pharmacological activities, making them useful in drug discovery platforms and for a wide range of applications in medicine and pharmaceutical biotechnology. Due to their target specificities, venom peptides have the potential to be developed into biopharmaceuticals to treat various health conditions such as diabetes mellitus, hypertension, and chronic pain. Despite the high potential for drug development, several limitations preclude the direct use of peptides as therapeutics and hamper the process of converting venom peptides into pharmaceuticals. These limitations include, for instance, chemical instability, poor oral absorption, short halflife, and off-target cytotoxicity. One strategy to overcome these disadvantages relies on the formulation of bioactive peptides with nanocarriers. A range of biocompatible materials are now available that can serve as nanocarriers and can improve the bioavailability of therapeutic and venom-derived peptides for clinical and diagnostic application. Examples of isolated venom peptides and crude animal venoms that have been encapsulated and formulated with different types of nanomaterials with promising results are increasingly reported. Based on the current data, a wealth of information can be collected regarding the utilization of nanocarriers to encapsulate venom peptides and render them bioavailable for pharmaceutical use. Overall, nanomaterials arise as essential components in the preparation of biopharmaceuticals that are based on biological and pharmacological active venom-derived peptides.

scholarly journals VAGADRONE: Intelligent and Fully Automatic Drone Based on Raspberry Pi and Android

2021 ◽  
Vol 11 (7) ◽  
pp. 3153
Author(s):  
Saifeddine Benhadhria ◽  
Mohamed Mansouri ◽  
Ameni Benkhlifa ◽  
Imed Gharbi ◽  
Nadhem Jlili
Keyword(s):  
Remote Control ◽  
Autonomous Navigation ◽  
Object Identification ◽  
External Control ◽  
Raspberry Pi ◽  
Optimal Trajectories ◽  
Live Streaming ◽  
Wide Range ◽  
Fully Automatic ◽  
Direct Use

Multirotor drones are widely used currently in several areas of life. Their suitable size and the tasks that they can perform are their main advantages. However, to the best of our knowledge, they must be controlled via remote control to fly from one point to another, and they can only be used for a specific mission (tracking, searching, computing, and so on). In this paper, we intend to present an autonomous UAV based on Raspberry Pi and Android. Android offers a wide range of applications for direct use by the UAV depending on the context of the assigned mission. The applications cover a large number of areas such as object identification, facial recognition, and counting objects such as panels, people, and so on. In addition, the proposed UAV calculates optimal trajectories, provides autonomous navigation without external control, detects obstacles, and ensures live streaming during the mission. Experiments are carried out to test the above-mentioned criteria.

scholarly journals Metabolic engineering in woody plants: challenges, advances, and opportunities

aBIOTECH ◽  
2021 ◽  
Author(s):  
Shu Yu ◽  
Cody S. Bekkering ◽  
Li Tian
Keyword(s):  
Renewable Energy ◽  
Metabolic Engineering ◽  
Ecosystem Services ◽  
Plant Transformation ◽  
Woody Plants ◽  
Woody Plant ◽  
High Biomass ◽  
Generation Times ◽  
Wide Range ◽  
Biochemical Diversity

AbstractWoody plant species represent an invaluable reserve of biochemical diversity to which metabolic engineering can be applied to satisfy the need for commodity and specialty chemicals, pharmaceuticals, and renewable energy. Woody plants are particularly promising for this application due to their low input needs, high biomass, and immeasurable ecosystem services. However, existing challenges have hindered their widespread adoption in metabolic engineering efforts, such as long generation times, large and highly heterozygous genomes, and difficulties in transformation and regeneration. Recent advances in omics approaches, systems biology modeling, and plant transformation and regeneration methods provide effective approaches in overcoming these outstanding challenges. Promises brought by developments in this space are steadily opening the door to widespread metabolic engineering of woody plants to meet the global need for a wide range of sustainably sourced chemicals and materials.

scholarly journals Local Corruption and Popular Support for Fuel Subsidy Reform in Indonesia

2018 ◽  
Vol 51 (11) ◽  
pp. 1472-1503 ◽  
Author(s):  
Jordan Kyle
Keyword(s):  
Local Governments ◽  
Universal Access ◽  
Public Support ◽  
Household Survey ◽  
Social Programs ◽  
Transfer Programs ◽  
Poor Households ◽  
Fuel Subsidies ◽  
Local Politicians ◽  
Subsidy Reform

This article examines the role played by local governments in shaping resistance to reforming fiscally and environmentally disastrous fuel subsidies. Shifting from universal-access social programs, like fuel subsidies, to targeted programs requires vesting authority with local politicians and bureaucrats, whom the state relies on to identify poor households and to deliver benefits. Where local governments are corrupt, citizens find promises to replace fuel subsidies with targeted spending less credible and resistance to reform is higher. Using household survey data from Indonesia, this article finds that corruption in the implementation of targeted transfer programs increases resistance to fuel subsidy reform among the poor citizens who consume the least fuel and who stand to benefit the most from targeted programs. Findings suggest that improving capacity within subnational governments to deliver social programs is important in developing public support for reform.

Ecosystem services and tradeoffs in the home food gardens of African American, Chinese-origin and Mexican-origin households in Chicago, IL

2016 ◽  
Vol 32 (1) ◽  
pp. 69-86 ◽  
Author(s):  
John R. Taylor ◽  
Sarah Taylor Lovell ◽  
Sam E. Wortman ◽  
Michelle Chan
Keyword(s):  
African American ◽  
Ecosystem Services ◽  
Plant Species ◽  
Food Production ◽  
Ornamental Plant ◽  
Urban Land Use ◽  
Mexican Origin ◽  
Chinese Origin ◽  
Wide Range ◽  
Food Gardens

AbstractWith increasing urbanization and environmental degradation, urban landscapes are increasingly expected to provide a wide range of ecosystem services typically associated with rural areas, including biodiversity conservation and food production. Because residential landscapes constitute the largest single urban land use, domestic gardens have emerged as a topic of research interest and planning concern. The ecosystem services (or disservices) these landscapes provide, however, have not been rigorously measured, nor have tradeoffs between the services they provide been assessed. In this study, semi-structured interviews were conducted with 59 African American, Chinese-origin or Mexican-origin households with on-lot or vacant lot food gardens in Chicago. Crop plants and cultivated ornamental plants on the lot were inventoried and mapped at the species level. A total of 123 edible plant taxa from 25 families and 288 ornamental plant species from 85 families were identified, for a combined total of 387 species from 90 families. Cumulatively, the gardens of African American households were relatively rich in ornamental plant species and families, while those of Chinese-origin households had a depauperate flora. Crop plant richness was more even across sample types. Shade trees and a developed shrub layer were absent from most gardens, possibly representing a tradeoff in ecosystem services in favor of food production. The richness of the aggregate 2.1 ha of residential property inventoried in this study was comparable with or exceeded that of a 34 ha prairie remnant west of Chicago. However, only 35 (9.6%) of the inventoried species were native to the Chicago area.

scholarly journals A protocol for an intercomparison of biodiversity and ecosystem services models using harmonized land-use and climate scenarios

2018 ◽  
Vol 11 (11) ◽  
pp. 4537-4562 ◽  
Author(s):  
HyeJin Kim ◽  
Isabel M. D. Rosa ◽  
Rob Alkemade ◽  
Paul Leadley ◽  
George Hurtt ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Ecosystem Services ◽  
Biological Diversity ◽  
Multiple Scales ◽  
Convention On Biological Diversity ◽  
Second Phase ◽  
Intergovernmental Panel ◽  
Wide Range ◽  
Global Impacts

Abstract. To support the assessments of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), the IPBES Expert Group on Scenarios and Models is carrying out an intercomparison of biodiversity and ecosystem services models using harmonized scenarios (BES-SIM). The goals of BES-SIM are (1) to project the global impacts of land-use and climate change on biodiversity and ecosystem services (i.e., nature's contributions to people) over the coming decades, compared to the 20th century, using a set of common metrics at multiple scales, and (2) to identify model uncertainties and research gaps through the comparisons of projected biodiversity and ecosystem services across models. BES-SIM uses three scenarios combining specific Shared Socio-economic Pathways (SSPs) and Representative Concentration Pathways (RCPs) – SSP1xRCP2.6, SSP3xRCP6.0, SSP5xRCP8.6 – to explore a wide range of land-use change and climate change futures. This paper describes the rationale for scenario selection, the process of harmonizing input data for land use, based on the second phase of the Land Use Harmonization Project (LUH2), and climate, the biodiversity and ecosystem services models used, the core simulations carried out, the harmonization of the model output metrics, and the treatment of uncertainty. The results of this collaborative modeling project will support the ongoing global assessment of IPBES, strengthen ties between IPBES and the Intergovernmental Panel on Climate Change (IPCC) scenarios and modeling processes, advise the Convention on Biological Diversity (CBD) on its development of a post-2020 strategic plans and conservation goals, and inform the development of a new generation of nature-centred scenarios.

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