Endangered Species Recovery and River Basin Policy: Contribution of Economic Analysis

1999 ◽  
Vol 81 (5) ◽  
pp. 1250-1251 ◽  
Author(s):  
Ari M. Michelsen ◽  
R.G. Taylor
2002 ◽  
Vol 6 (2) ◽  
Author(s):  
John Stinchcombe ◽  
Leonie C. Moyle ◽  
Brian R. Hudgens ◽  
Philip L. Bloch ◽  
Sathya Chinnadurai ◽  
...  

2012 ◽  
Vol 1 (8) ◽  
Author(s):  
Mesud Adžemović ◽  
Mirjana Bartula ◽  
Jordan Aleksić

Economic analysis is the key requirement of EU Water Framework Directive. On a level of river basin area, economic analysis includes three dimensions: 1. economic characterization of water use: current and future projected economic importance of capacities and potentials of water resources; 2. program of measures for achieving good water status: cost-benefit analyses, cost efficiency analyses, cost scale and influence: and 3. water services price policies: evaluation of institutional alternatives for recovery of water services costs, including analysis of cost distribution. The analysis includes leveling of current and projected water resources data with costs and benefits of water services on the level of river basin area within local communities and integrated on sub-region level.


Author(s):  
Joe Kerkvliet

Economics plays strong roles in the design, implementation, and evaluation of the Endangered Species Act (ESA). First, the ESA’s language allows for economic analysis of critical habitat designations, recovery plan implementations, listing postponements, and the design of habitat-conservation plans. Extensive administrative changes to the ESA in the 1990s were designed to reduce economic costs and to elicit landowners’ cooperation. These reforms were partly motivated and guided by economic analysis. Second, economic analysis plays a role in providing credible estimates of the economic costs of ESA implementation. Cost estimates are highly variable and likely to depend on species’ characteristics and the effectiveness of recovery programs. Emerging evidence suggests that the 1990 reforms are reducing costs and increasing effectiveness. Third, economic science contributes to estimation of benefits. Because of the “public goods” nature of nearly all ecosystem and species conservation efforts, estimates must be based on stated preference methods. This use leads to difficulties in establishing the authenticity of benefits estimates. Also, research suggests that benefits estimates are highly sensitive to the spatial nature of the market (beneficiaries’ geographic locations). Future research needs to tackle both authenticity and spatial issues. Fourth, benefit–cost analysis (BCA) is required by law to inform many resource decisions affecting ecosystem and species conservation. Four illustrative BCAs show that whether benefits exceed costs is highly dependent on the authenticity of benefits based on stated preference methods and assumptions about the spatial nature of the market. Substantial uncertainty accompanies both benefit and cost estimates.


2021 ◽  
Vol 46 (4) ◽  
pp. 1080-1085
Author(s):  
Igor H. F. Azevedo ◽  
Pedro L. R. Moraes

Abstract— Sanchezia dubia is described and illustrated as a new species from the department of Madre de Dios in southeastern Peru. Its morphology slightly resembles Sanchezia sprucei, but its most remarkable feature is its close similarity to Suessenguthia, even more so than to those of its own genus. This new species is distinguished from others by its glabrous stem and leaves, its inflorescence containing two to five serial cymose heads, which are sessile to short-pedunculate, with mostly two to four flowers each (occasionally one), its inner bracts ranging in length between 6 and 23 mm, and its androecium composed of two stamens and two mucronate staminodes. We suggest it is an endangered species based on its restricted geographic distribution, its few known populations, and the increasing threats to its habitats. Along with Suessenguthia koessleri, this new species seems to be a key taxon to understanding the phylogenetic relationship between these two genera, which is still uncertain. Additionally, we provide a key to identify the Sanchezia and Suessenguthia species of the Madre de Dios River basin from southern Peru to northern Bolivia.


1997 ◽  
Vol 61 (1) ◽  
pp. 249
Author(s):  
Phillip D. Doerr ◽  
T. Clark ◽  
R. P. Reading ◽  
A. L. Clarke

2002 ◽  
Vol 12 (3) ◽  
pp. 708-712 ◽  
Author(s):  
William F. Morris ◽  
Philip L. Bloch ◽  
Brian R. Hudgens ◽  
Leonie C. Moyle ◽  
John R. Stinchcombe

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