نتایج جستجو برای: iucn red list

تعداد نتایج: 261354  

Journal: :Oryx 2023

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2014
D. S. Shiffman J. Wester A. D. Thaler N. Hammerschlag

Trophy fishing occurs when anglers target the largest members of a species with the goal of obtaining an award with perceived prestige. The largest members of many species are also the most fecund, raising alarms about the disproportionate impact of removing the largest individuals of species of conservation concern. Presented here is the first systematic analysis of the conservation status of ...

2012
Peter S. Rand Matthew Goslin Mart R. Gross James R. Irvine Xanthippe Augerot Peter A. McHugh Victor F. Bugaev

BACKGROUND Concern about the decline of wild salmon has attracted the attention of the International Union for the Conservation of Nature (IUCN). The IUCN applies quantitative criteria to assess risk of extinction and publishes its results on the Red List of Threatened Species. However, the focus is on the species level and thus may fail to show the risk to populations. The IUCN has adapted the...

Plantago lagocephala is recorded as a new species for the flora of Iran from Razavi Khorassan Province. It is compared with the closely related species including P. lachnantha, P. ciliata and P. psammophila. Moreover, the diagnostic morphological characters and a distribution map are provided. The conservation status of the new record is evaluated based on the IUCN red list categories and crite...

2017
Gilles Dauby Tariq Stévart Vincent Droissart Ariane Cosiaux Vincent Deblauwe Murielle Simo-Droissart Marc S M Sosef Porter P Lowry George E Schatz Roy E Gereau Thomas L P Couvreur

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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