منابع مشابه
Biological Reserves , Rare Species and the Opportunity Cost of Diversity
The preservation of species diversity generally suggests protection of either the greatest number of species possible or all species. Requiring representation of each species in at least one parcel in the system and seeking the minimum number of parcels in the reserve system to achieve this requirement is termed the Species Set Covering Problem (SSCP). Nonetheless, it is important, as well, to ...
متن کاملBiological effects within no-take marine reserves: a global synthesis
The study and implementation of no-take marine reserves have increased rapidly over the past decade, providing ample data on the biological effects of reserve protection for a wide range of geographic locations and organisms. The plethora of new studies affords the opportunity to reevaluate previous findings and address formerly unanswered questions with extensive data syntheses. Our results sh...
متن کاملThe Effects of Evolution and Spatial Structure on Diversity in Biological Reserves
Conservation ecologists have long argued over the best way of placing reserves across an environment to maximize population diversity. Many have studied the effect of protecting many small regions of an ecosystem vs. a single large region, with varied results. However, this research tends to ignore evolutionary dynamics under the rationale that the spatiotemporal scale required is prohibitive. ...
متن کاملestimating claims reserves using ibnr reserves
شرکت های بیمه در قبال بیمه گذاران متعهد می شوند که به ازای دریافت حق بیمه، خسارت وارده به بیمه گذاران را جبران نمایند. بنابراین بیمه گر همیشه مبالغی را بر عهده دارد که متعلق به بیمه گذاران است و مربوط به تعهدات آینده می باشد. این مبالغ را ذخایر فنی یا technical reserves گویند. بیمه گر موظف است در پایان سال مالی، هنگام بستن حساب ها، ذخایر فنی را محاسبه و نگهداری کند. پس از وقوع خسارت، بیمه گذار ...
Overreporting Oil Reserves
An increasing number of oil market experts argue that OPEC members substantially overstate their oil reserves. While the economic implications could be dire, the incentives for overreporting remain unclear. This paper analyzes these incentives, showing that oil exporters may overreport to raise expected future supply, thereby discouraging oil-substituting R&D and improving their own future mark...
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ژورنال
عنوان ژورنال: Res Medica
سال: 2013
ISSN: 2051-7580,0482-3206
DOI: 10.2218/resmedica.v1i3.320