ecology of phasmids - KLUEDO - Universität Kaiserslautern
ecology of phasmids - KLUEDO - Universität Kaiserslautern
ecology of phasmids - KLUEDO - Universität Kaiserslautern
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Community structure & host range 17<br />
no. <strong>of</strong> species<br />
11<br />
10<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
Mar-<br />
00<br />
May-<br />
00<br />
Jun-<br />
00<br />
Aug-<br />
00<br />
Oct-<br />
00<br />
Nov-<br />
00<br />
Jan-<br />
01<br />
Feb-<br />
01<br />
Apr-<br />
01<br />
Figure 2-1: Species accumulation curve for <strong>phasmids</strong> recorded along line-transects on BCI (May 2000 to July<br />
2001; N = 307).<br />
relative abundance [%]<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
Oncotophasma<br />
martini<br />
Isagoras<br />
dentipes<br />
Bacteria<br />
ploiaria<br />
Metriophasma<br />
diocles<br />
species<br />
Otocrania<br />
sp.<br />
Figure 2-2: Relative abundances <strong>of</strong> phasmid species at forest edges (white bars) and in the forest understory<br />
(black bars) <strong>of</strong> BCI (line-transect data; N = 307).<br />
2.3.2 Seasonality<br />
Absolute abundances <strong>of</strong> <strong>phasmids</strong> along forest edges were temporally heterogeneous (Figure 2-3) as<br />
demonstrated by comparison <strong>of</strong> cumulative frequencies per month (GOF, χ 2 = 40.17, df = 12, p < 0.01).<br />
This temporal heterogeneity in phasmid abundances held for phasmid adults (GOF, χ 2 = 40.25, df = 12,<br />
p < 0.01) but not for nymphs (GOF, χ 2 = 18.45, df = 14, p > 0.05). Heterogeneity largely resulted for<br />
Jun-<br />
01<br />
Jul-<br />
01