Search results for "Red list"
showing 4 items of 84 documents
Żabieniec trawolistny Alisma gramineum Lej. w stawach hodowlanych południowo-zachodniej Polski - rozmieszczenie, warunki występowania
2017
W pracy przedstawiono przegląd informacji na temat występowania żabieńca trawolistnego Alisma gramineum Lej. oraz omówiono nowe stanowiska zlokalizowane w stawach hodowlanych południowo-zachodniej Polski. W Polsce gatunek ten należy do bardzo rzadkich składników flory. Większość z około 120 dotychczas znanych jego stanowisk pochodzi z XIX lub pierwszej połowy XX w. Obecnie gatunek ten znany jest z około 30 stanowisk, z czego 2 znajdują się w południowo-zachodniej Polsce. W trakcie obecnych badań stwierdzony został na tym obszarze w stawach hodowlanych na 5 nowych stanowiskach – 3 znajdują się na Dolnym Śląsku, a 2 na Śląsku Opolskim. Zanik stanowisk Alisma gramineum w południowo-zachodniej …
Red list of threatened vascular plants in Italy
2021
Italy has a rich natural heritage, which is dangerously under pressure. In recent years, there is an increased awareness of the crucial role of plants in ecosystem functioning and in providing ecosystem services. Consequently, an updated Red List of the Italian vascular flora was compiled in this work, at the request of the Ministry for Environment, Land and Sea Protection, with the scientific support of the Italian Botanical Society. The IUCN Red List criteria were applied to 2,430 Italian native vascular plant taxa to assess their current extinction risk and to highlight the major threats affecting the Italian flora. Our results revealed that 54 taxa (2.2% of the assessed taxa) are extinc…
Taxa a rischio nella flora vascolare della Sicilia
2011
Biogeographia vol. XgO( - 2011 (Pubblicato il 23 dicembre 2011) La Biogeografia de/Ia Sicilia Taxa a rischio nella flora vascolare della Sicilia FRANCESCO MARIA RAIMONDO, GIUSEPPE BAZAN, ANGELO TROIA Dzjzartimento di Biologia Ambientale e Biodiversitd, Universird di Palermo via Arc/aimfi 38, 90123 Palermo (Italy) Key words: threatened species, vascular flora, red list, Sicily. SUMMARY An analysis was made to update the regional red list of endangered vascular plants in Sicily which, with 3,252 taxa (including a noteworthy number of endemic species), is one of the richest areas in the Mediterranean region. Considering previous regional and national red lists, recent taxonomic and floristic lite…
Verifying the predicted risk of extinction based on ecological characteristics
2021
Red List status of species should reflect species extinction risk. Because data are limited and species response has a time lag, species may be threatened by extinction even if they are not Red‐Listed. The ability to predict species risk of extinction from ecological characteristics holds promises for proactively targeting conservation measures to species at high risk. In 2005, the risk of extinction from ecological characteristics was predicted for 81 species of Finnish butterflies. Now, after 15 years and two additional national Red List assessments, these predictions are verified. Species with a higher risk of extinction according to the original ecological extinction risk rank (EERR) ha…