Research Article
Distribution and Diversity of Oligochaetes in Selected Ponds of Thiruvananthapuram District, Kerala, South India
Table 3
Shannon-Weaver diversity index (
).
| Period of study | Seasons | P1 | P2 | P3 |
| 2006-2007 | Postmonsoon | 1.90 | 2.00 | 1.73 | Premonsoon | 1.94 | 1.97 | 1.72 | Monsoon | 1.92 | 2.03 | 1.78 |
| 2007-2008 | Postmonsoon | 1.85 | 1.97 | 1.76 | Premonsoon | 1.89 | 1.98 | 1.69 | Monsoon | 1.91 | 2.05 | 1.75 |
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