Polar Bears (Ursus maritimus) are facing a range of threats that might impact their future population status (see section Threats below). The IUCN Polar Bear Specialist Group (PBSG) regards loss of sea-ice habitat due to climate warming as the most serious threat to future Polar Bear survival. We therefore based our Red List assessment on this threat factor only, recognizing that sea-ice condit...

We assessed the prevalence of alien species as a driver of recent extinctions in five major taxa (plants, amphibians, reptiles, birds and mammals), using data from the IUCN Red List. Our results show that alien species are the second most common threat associated with species that have gone completely extinct from these taxa since AD 1500. Aliens are the most common threat associated with extin...

An overview is presented of the metazoan alien biota recorded from the Mediterranean coast of Israel. Of the 296 alien species, 284 have been introduced from the Red Sea/Indo West-Pacific through the Suez Canal. A brief history of the research on introduced species along the Israeli coast is presented along with the list of species, and their ecological and economic impacts are discussed.

The red panda is listed as “endangered” in the IUCN Red List of Threatened Species, due to rapid population decline. Improving our knowledge on biology and ethology necessary enhance its husbandry breeding zoos. Behavioural variety, intended presence a wide array species-specific behaviour, has been considered positive welfare index zoo-housed animals. aim this study was describe behaviour two ...

Finding ways of efficiently monitoring threatened species can be critical to effective conservation. The global proliferation community science (also called citizen science) programs, like iNaturalist, presents a potential alternative or complement conventional monitoring. Using case study ~700,000 observations >10,000 IUCN Red List Threatened within iNaturalist observations, we illustrate the ...

Oxalis simplicifolia Lorence & W. L. Wagner sp. nov., a new species from the Marquesas Islands (Ua Huka) is described and illustrated. It differs from the other Marquesas species, Oxalis gagneorum, in having simple, unifoliolate glabrous leaves, minutely glandular-puberulent calyx lobes, shorter corolla lobes, erect capsules, and smaller seeds. As its habitat is under serious threat from human ...

background : cockroaches are of vital importance medically and hygienically. they are able to contaminate foods and act as vectors of pathogenic agents such as bacteria, protozoa, and parasites to human environment either mechanically or through their digestive system. cockroaches belong to the phylum arthropoda, class insecta, and order blattodea or blattaria. to date, over 4,500 cockroach spe...