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NYAMSUREN BATSAIKHAN BAYARBAATAR BUUVEIBAATAR BAZAAR CHIMED OIDOV ENKHTUYA DAVAA GALBRAKH OYUNSAIKHAN GANBAATAR BADAMJAV LKHAGVASUREN DEJID NANDINTSETSEG JOEL BERGER JUSTIN M. CALABRESE ANN E. EDWARDS WILLIAM F. FAGAN TODD K. FULLER MICHAEL HEINER TAKEHIKO Y. ITO PETRA KACZENSKY PETER LEIMGRUBER ANNA LUSHCHEKINA E.J. MILNER‐GULLAND THOMAS MUELLER MARTYN G. MURRAY KIRK A. OLSON RICHARD READING GEORGE B. SCHALLER ANNAGRET STUBBE MICHAEL STUBBE CHRIS WALZER HENRIK VON WEHRDEN TONY WHITTEN 《Conservation biology》2014,28(6):1736-1739
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David Gibbs∗ James Longhurst† Clare Braithwaite‡ 《Journal of Environmental Planning and Management》1996,39(3):317-332
The recent growth of interest in sustainable development has led to the incorporation of the concept into policy making at a variety of scales. In all cases particular emphasis is placed upon the local scale as the focus for the implementation of policy and initiatives and especially upon local authorities as the major contributor to this process. There has been little assessment, however, of the extent to which local authorities either can, or are, undertaking such initiatives. This paper examines: the potential role that local authorities can play in integrating economic development and the environment; the forms of response and initiatives that are currently in place, drawing upon survey evidence from urban local authorities in England and Wales; and some of the limits to local authority action. 相似文献
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Preliminary Evidence of a Barrier Effect of a Railroad on the Migration of Mongolian Gazelles 总被引:2,自引:0,他引:2
TAKEHIKO Y. ITO†† NAOKO MIURA† BADAMJAV LHAGVASUREN‡ DULAMTSEREN ENKHBILEG‡ SEIKI TAKATSUKI§ ATSUSHI TSUNEKAWA ZHAOWEN JIANG 《Conservation biology》2005,19(3):945-948
Abstract: Much remains to be learned about how anthropogenic structures affect migration in large mammals. We examined the potential influence of the international railroad in Mongolia on migration in Mongolian gazelles (Procapra gutturosa). We examined gazelle movements and the normalized difference vegetation index (NDVI) on both sides of the railroad. The tracked gazelles never crossed the railroad, despite movements that mainly followed the railroad in winter and higher NDVI values on the opposite side. It is likely that the railroad had a barrier effect on gazelle migration because it split the gazelles' habitat. Our results, although based on an extremely small sample, have utility in indicating approaches that might be useful for examining migration in ungulates. 相似文献
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This study was conducted to examine adsorption of pesticides bifenthrin, carbosulfan, λ-cyhalothrin, cypermethrin, endosulfan, parathion methyl, monocrotophos and 4-nitrophenol by sandy clay loam (S.C.L) and sandy loam (S.L) soils (with varying organic content). There was no significant difference between the observed soil water partitioning coefficient values (K d) derived from linear and nonlinear Freundlich isotherms. Adsorption of pesticides on S.C.L soils was higher than those on S.L soils. K d values showed significant correlations (r 2?=?0.8???0.99 and 0.65???0.97) with soil organic carbon content (OC) and weak correlations (r 2?=?0.2???0.29 and 0.1???0.18) with clay contents of S.C.L and S.L soil at p?≤?0.05, respectively for all pesticides (except monocrotophos). Observed K oc values (soil-water partitioning constants based on the organic C fraction of the soil) were in accordance with the literature values of Wauchope and Tomlin with a maximum deviation of less than 0.5 log units. Ten Quantitative Property-Property Relationships (QPPR) among water solubility, n-octanol water coefficient (K ow) and K oc were proposed for studied pesticides except monocrotophos. The models were considered acceptable when predicted-observed difference for log?K ow and log?K oc were ≤?0.3 and ≤?0.5?log units, respectively, during the validation procedure. This work indicates that the log?K oc derived from the log Kow, from some of existing relationships, may be a fair predictor where observed values (i.e., K d and K oc) are not available. Furthermore, predicted leaching potential by groundwater ubiquity scores (GUS) equation was solved by using observed K oc values and literature reported half lives of pesticides. GUS ranked the mobility of nonvolatile compounds i.e., bifenthrin, λ-cyhalothrin, cypermethrin and endosulfan extremely low; methyl parathion very low; 4-nitrophenol low; carbofuran and monocrotophos very high in S.C.L and S.L soils, respectively. Results discussed in this paper provide background to prioritize pesticides or chemical groups that should be evaluated under field conditions with regard to their leaching potential to groundwater in arid climates. 相似文献
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Brian Byrnes∗ Clive Jones† Sandra Goodman‡ 《Journal of Environmental Planning and Management》1999,42(2):149-166
This paper presents the findings of two 'green pricing' studies conducted to evaluate public support of utilities' investments in renewable energy technologies. These studies compared hypothetical WTP statements with actual payment commitments. The results of these studies indicate that the CVM can be an accurate indicator of an individual's WTP, but that it is an unreliable predictor of which individuals will actually pay. This has important implications for aggregating mean WTP estimates of the value of environmental benefits. It also suggests that market simulations can be useful for predicting programme participation rates when voluntary donations are used as a payment vehicle. 相似文献
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