Vulnerable Earthworm Species Identified from Nilgiri Biosphere Reserve

摘要

Diversity of earthworms at Nilgiri Biosphere Reserve is less known even though it is one among the biodiversity hot spots. Unless an authentic record of available earthworm species is made, the consequences of human alternation or climate change on the earthworm species diversity cannot be assessed. In this regard, the present study is relevant. Earthworms were collected from twenty three sites of NBR. The findings of this study showed that out of the total earthworm species identified from selected areas of NBR, 83.4% are native species and 16.6% are exotic. This indicates the predominance of native species in the study area possibly due to low level of disturbance in the area. Among the species identified from Mukurthi, Priodichaeta pellucida (Bourne) which is listed as vulnerable and has not been encountered since its discovery about 100 years ago.