ABUNDANCE AND DIVERSITY OF INSECTS IN BORIKIRI MANGROVE ECOSYSTEM IN NIGER DELTA, NIGERIA
| Main Author: | MEMBERE, O. AND NWABUEZE, E. |
|---|---|
| Format: | Article eJournal |
| Bahasa: | eng |
| Terbitan: |
, 2019
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3457098 |
Daftar Isi:
- The diversity of insects in Borikiri mangrove habitat along the Bonny River was investigated for three months (April–June, 2017). The study was carried out to establish a basic understanding of the diversity pattern of insect assemblages in the area and to understand the relationship between the surrounding mangrove ecosystem and associated insect fauna. Two mangrove plant species were investigated: Rhizophora and Avicennia species. A total of 6 insect orders, Diptera, Coleoptera, Hymenoptera, Homoptera, Orthoptera, Odonata, 24 families and 42 species were identified and recorded. This study shows that Diptera (73%) was the highest insect order recorded, followed by Hymenoptera 9% and Coleoptera 7%. The highest insect diversity was observed on Avicennia in Hemiptera (Shannon’s, H’ = 2.87), while Orthoptera and Coleoptera (Shannon’s, H’ = 0.00) were the lowest. However, on Rhizophora, Coleoptera and Hymenoptera had the highest Shannon value of 1.74 while Hemiptera and Odonata (Shannon’s, H’ = 0.00) were the lowest. The highest insect richness was observed on Rhizophora in Orthoptera (Margalef index, = 0.72) and the highest insect evenness was observed on Rhizophora in Hymenoptera and Coleoptera (Evenness, E = 0.79). Results of the present study will eventually contribute to biodiversity conservation and management of ecosystems in the Niger Delta. More studies on the diversity of insects in mangrove ecosystems within the Niger delta area are encouraged.