BACKGROUND Categories of imperilment like the global IUCN Red List have been transformed to probabilities of extinction and used to rank species by the amount of imperiled evolutionary history they represent (e.g. by the Edge of Existence programme). We investigate the stability of such lists when ranks are converted to probabilities of extinction under different scenarios. METHODOLOGY AND PR...

Abstract The IUCN Red List (RL) provides high-quality conservation assessments for individual species, yet the rate and scale of environmental deterioration globally challenges community to develop expedited methods risk assessment. Here we compare threat 3,001 species Neotropical freshwater fishes (NFF) in IUCN–RL using readily accessible data types as proxies extinction risk: geographic range...

Ruby-throated Bulbul Rubigula dispar, currently Vulnerable on the IUCN Red List owing to trade pressure, is considered monotypic across its range three Sundaic islands in Indonesia: Sumatra, Java and Bali. However, examination of photographs museum specimen labels measurement 37 Sumatran 50 Javan specimens indicate that birds from Sumatra differ those (type locality) Bali exhibiting a variably ...

Although the European hamster is probably the fastest-declining Eurasian mammal, its IUCN Red List status is still Least Concern. In addition to the huge distribution area, this categorization is based on the assumptions (1) that the decline affects only Western Europe, where (2) modern agriculture has led to (3) an increase in the mortality of the species. Since mortalityreducing protection me...

The establishment of baseline IUCN Red List assessments for plants is a crucial step in conservation planning. Nowhere is this more important than in biodiversity hotspots that are subject to significant anthropogenic pressures, such as Madagascar. Here, all Madagascar palm species are assessed using the IUCN Red List categories and criteria, version 3.1. Our results indicate that 83% of the 19...

In the Ligurian Sea, northern part of Western Mediterranean sperm whales (Physeter macrocephalus Linnaeus, 1758) are historically sighted as solitary individuals or loose aggregations males, while social units extremely occasional. On 21 August 2020, two different were recorded in this area with an estimate total (12 first and nine second). The whale subpopulation is considered Endangered under I...