نتایج جستجو برای: conservation value
تعداد نتایج: 827310 فیلتر نتایج به سال:
When funds are limited, librarians and curators responsible for selecting rare books for conservation treatment must base their decisions not only upon physical condition, but also upon the ''value'' assigned to each physically deteriorated book. This article discusses the rationale for, and possible uses of, guidelines designed to facilitate conservation decisions by systematically evaluating ...
In the absence of reliable survey data, habitat modelling can direct conservation and fishery management efforts. We have constructed a model designed to predict high-value inshore rockfish habitat, based on the variables of topographical complexity and kelp density. When applied in our pilot study area, this model showed remarkable accuracy at predicting areas previously identified by commerci...
Many phylogeographic studies have revealed strongly diverged lineages within species that are masked by a lack of congruent morphological differentiation. To assess the extent to which the genetic component of diversity affects conservation assessments, we compared spatial patterns of endemism and conservation value for 22 species of Californian amphibians and reptiles with the 75 phylogeograph...
This note summarizes the results of the meeting, " Economics and Conservation in the Tropics: A Strategic Dialogue, " held in San Francisco, January 31–February 1, 2008, and organized by the Conservation Strategy Fund, Resources for the Future, and the Gordon and Betty Moore Foundation. At the meeting, experts (see Annex 1) were asked to discuss the role of economic analysis as a tool to achiev...
Aesthetic is an added value to other precious values of rangelands and helps its ecosystem conservation. Unfortunately, there is not plenty of researches run on this issue and its probable value. Instead emphasis has put on ecosystem management especially on the basis of marketable products. In this study, the people willingness to pay for the aesthetic of Sarbijan rangeland landscapes and its ...
In order to safeguard biodiversity in forest we need to know how forest policy instruments work. Here we use a nationwide network of 9400 plots in productive forest to analyze to what extent large-scale policy instruments, individually and together, target forest of high conservation value in Norway. We studied both instruments working through direct regulation; Strict Protection and Landscape ...
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