نتایج جستجو برای: conservation

تعداد نتایج: 101170  

2017
Varun R. Goswami Divya Vasudev

Conservation of wide-ranging endangered species is increasingly focused on large heterogeneous landscapes. At such scales, particularly when conservation landscapes are human dominated, it is imperative that prioritization techniques be used to allocate limited resources wisely. Moreover, spatial aspects of conservation planning warrant key consideration within these landscapes, such that certa...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2008
Erika Zavaleta Daniel C Miller Nick Salafsky Erica Fleishman Michael Webster Barry Gold David Hulse Mary Rowen Gary Tabor Jack Vanderryn

Funding for conservation is limited, and its investment for maximum conservation gain can likely be enhanced through the application of relevant science. Many donor institutions support and use science to pursue conservation goals, but their activities remain relatively unfamiliar to the conservation-science community. We examined the priorities and practices of U.S.-based private foundations t...

M. J. Kermani M. Khakbaz Baboli

A two-dimensional, unsteady, isothermal and two-phase flow of reactant-product mixture in the air-side electrode of proton exchange membrane fuel cells (PEMFC) is studied numerically in the present study. The mixture is composed of oxygen, nitrogen, liquid water and water vapor. The governing equations are two species conservation, a single momentum equation for mobile mixture, liquid mass cons...

حسینی خدادادی, مهدی, مظفری, محمدمهدی, پرهیزکاری, ابوذر, پرهیزکاری, رویا,

In this study, the influencing factors on farmers' participation in use of soil and water conservation practices were investigated using the farmers' experiences in Shahroud river basin. For achieving this goal was used from multinomial logit model. The required dates are related to year 2011-2012 that by completing the questionnaire from 138 sample farmers were collected. To select the sample ...

It is impractical to implement conservation efforts for all species due to complexity of natural systems, large scale of biodiversity issues, and budget limitations. Prioritizing species of conservation importance can alleviate this issue. Multiple interrelated criteria may be used for conservation prioritization of species. Therefore, the accurate evaluation of criteria is a multi-criteria dec...

2003
Steven D. Frank Paula M. Shrewsbury Galen Dively

Title of Thesis: EVALUATION OF CONSERVATION STRIPS AS A CONSERVATION BIOLOGICAL CONTROL TECHNIQUE ON GOLF COURSES Steven D. Frank, Master of Science, 2003 Thesis directed by: Assistant Professor Paula M. Shrewsbury Department of Entomology Conservation strips combine the conservation biological control tactics of beetle banks and flowering insectary strips. Conservation strips were established ...

Habitat heterogeneity plays an important role in increasing species diversity. Heterogeneity of habitats and protected areas can increase the ability of species to adapt to climate change. It is expected that appropriate heterogeneity is necessary for sustainability of protected areas. The influence of altitude on parameters such as temperature and precipitation and the role of microclimates in...

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