Investigation and evaluation of endangered diversity in Shandong province
This study investigated the species, threat categories and distribution in counties of endangered higher plants and animals, by using the county-level administrative area as an evaluation unit. The list of endangered species was established in every county area, their abundance index was calculated, their spatial distribution pattern was analyzed, and then the countermeasures of protecting the endangered species were proposed. The results show that there are 80 endangered wild vertebrate species in Shandong Province, and the numbers which belong to CR, EN, VU, and NT realm are 3, 11, 34, and 32, respectively. There are 24 endangered wild vascular plant species in Shandong Province, and the numbers which belong to CR, VU, and NT realm are 1, 6, and 17, respectively. The endangered wild vertebrate species distribute in every unit of 120 counties around the province, and the species range from 21 to 50. There are 74 units where the endangered wild vascular plants can be found, and the species range from 1 to 18. In conclusion, the abundance of endangered species in Shandong Province is low, varying from 3.75% to 6.76% in different counties. The results of spatial pattern of endangered species were consistent with the actual conditions of Shandong Province.
endangered speciesinvestigationdistribution in countiesShandong Province