Table 2. Frequencies of female morphs in natural populations of five dimorphic Ischnura species: I. senegalensis, I. fluviatilis, I. damula, I. ramburii and I. denticollis.
| Species | Country | Date |
Observed frequencies |
Source | ||
|---|---|---|---|---|---|---|
| N | A | G | ||||
| I. senegalensis | Japan | May-2007 | 37 | 21.6 | 78.4 | Takahashi and Watanable (2009) |
| I. senegalensis | Japan | Jun-2007 | 42 | 35.7 | 64.3 | Takahashi and Watanable (2009) |
| I. senegalensis | Japan | Jun-2006 | 42 | 26.2 | 73.8 | Takahashi and Watanable (2009) |
| I. senegalensis | Japan | Nov-2005 | ?? | 22.9 | 77.1 | Takahashi and Watanable (2009) |
| I. fluviatilis | Uruguay | Dec-2002 | 194 | 7.7 | 92.3 | Mckee et al. (2005) |
| I. fluviatilis | Uruguay | Jan-2003 | 141 | 7.8 | 92.2 | Mckee et al. (2005) |
| I. fluviatilis | Uruguay | Feb-2003 | 72 | 8.3 | 91.7 | Mckee et al. (2005) |
| I. fluviatilis | Uruguay | Jan-2003 | 66 | 4.5 | 95.5 | Mckee et al. (2005) |
| I. damula | North America | Apr-1963 | 72 | 11.1 | 88.9 | Johnson (1964) |
| I. damula | North America | May-1963 | 60 | 11.7 | 88.3 | Johnson (1964) |
| I. damula | North America | Dec-1963 | 43 | 16.3 | 83.7 | Johnson (1964) |
| I. damula | North America | Nov-1962 | 51 | 15.7 | 84.3 | Johnson (1964) |
| I. ramburii | North America | May-1983 | 90 | 31.1 | 68.9 | Robertson (1985) |
| I. ramburii | North America | May-1983 | 44 | 25.0 | 75.0 | Robertson (1985) |
| I. ramburii | North America | May-1998 | 94 | 36.2 | 63.8 | Sirot et al. (2003) |
| I. denticollis | North America | ?? | 94 | 24.0 | 76.0 | Fincke et al. (2005) |
| I. denticollis | North America | ??-1991 | 450 | 51.0 | 49.0 | Córdoba-Aguilar (1993) |
The number of mature female examined in each locality is indicated (N). A: androchrome, G: gynochrome.