نتایج جستجو برای: رویکرد iucn
تعداد نتایج: 46705 فیلتر نتایج به سال:
هدف: هدف پژوهش حاضر شناسایی و اولویت‌بندی تأثیرپذیری تأثیرگذاری ترجیحات کاری کارکنان نسل هزاره در سازمان‌های دولتی استان آذربایجان غربی بوده از نظر کاربردی است.طراحی/ روش‌شناسی/ رویکرد: این لحاظ نوع‌شناسی زمره پژوهش‌های آمیخته با رویکرد کیفی کمی پارادایم قیاسی-استقرایی است. بخش روش تحلیل محتوای دیمتل برای بررسی عوامل استفاده شده جامعه آماری اساتید مدیریتی بودند که توجه به پژوهش، نمونه‌گیری صورت...
We undertook a survey of mammal diversity and indigenous knowledge of mammals in Hewa country, in the vicinity of Wanakipa village, Southern Highlands Province, during July 2008. Specimens collected during this survey document the occurrence of 22 mammal species in the immediate area, including one monotreme, 6 marsupials, 7 rodents, and 8 bats. Two species of conservation concern, the Eastern ...
The world's oceans are undergoing profound changes as a result of human activities. However, the consequences of escalating human impacts on marine mammal biodiversity remain poorly understood. The International Union for the Conservation of Nature (IUCN) identifies 25% of marine mammals as at risk of extinction, but the conservation status of nearly 40% of marine mammals remains unknown due to...
Knowledge products comprise assessments of authoritative information supported by standards, governance, quality control, data, tools, and capacity building mechanisms. Considerable resources are dedicated to developing and maintaining knowledge products for biodiversity conservation, and they are widely used to inform policy and advise decision makers and practitioners. However, the financial ...
In a recent Opinion article in TREE [1], Gurevitch and Padilla concluded that the importance of invasive species in causing declines and extinctions of species is unproven. They analyzed the IUCN Red List database [2] and stated that only 6% of the taxa are threatened with extinction as a result of invasion by alien species and !2% (ten terrestrial plants and no animal species) of the 762 extin...
The survey was undertaken during the period from October -2012 to September -2013 in the Vattakkayal, Sakthikulangara panchayath, Kollam district. The major objective of this study was to find out the Biodiversity status of fishes in Vattakkayal of Kollam district, South India. Fishes were collected from the study area and the Meristic and Morphometric characters were measured and fishes were i...
We examined spatial distributions of fishes native to the lower basin of the Colorado River (25 species) at three scales to determine percent decline from historical distributions based on a regional biodiversity database. We cumulated records from 1843 to 1980 to develop a “historical distribution” for each species and used those occurrences recorded from 1981 to 1998 as “modern” records. We t...
An understanding of risks to biodiversity is needed for planning action to slow current rates of decline and secure ecosystem services for future human use. Although the IUCN Red List criteria provide an effective assessment protocol for species, a standard global assessment of risks to higher levels of biodiversity is currently limited. In 2008, IUCN initiated development of risk assessment cr...
The Red List Categories and the accompanying five criteria developed by the International Union for Conservation of Nature (IUCN) provide an authoritative and comprehensive methodology to assess the conservation status of organisms. Red List criterion B, which principally uses distribution data, is the most widely used to assess conservation status, particularly of plant species. No software pa...
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