1980] Tietjen — Sanitary Behavior of Malios gregalis 
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7 
6 5 
7 6 4 
6 5 5 2 1 
8 6 2 2 2 
8 5 3 2 2 1 
8 7 2 2 2 2 1 
7 6 2 2 1 1 1 
6 7 4 2 1 2 1 
7 7 2 2 1 1 0 
6 7 2 2 1 1 1 
5 6 2 2 2 1 1 
7 8 2 2 2 6 1 
8 5 3 2 1 2 1 
7 5 4 2 2 1 
5 5 112 
5 5 3 2 2 
7 7 3 3 1 
4 5 3 
7 7 4 
9 7 5 
6 6 3 
3 2 2 
2 2 2 
112 
2 11 
111 
111 
0 0 1 
111 
0 2 0 
111 
10 0 
1 1 1 
1 1 1 
111 
111 
2 11 
2 2 2 
3 2 2 
4 4 3 
4 4 4 
6 6 4 
8 8 3 
5 4 4 
2 3 3 
2 2 2 
2 2 2 
2 11 
2 2 1 
111 
111 
Oil 
111 
0 0 0 
0 0 1 
10 0 
111 
111 
111 
111 
111 
111 
112 
2 2 3 
4 4 4 
2 2 3 
3 3 3 
6 6 7 
3 3 4 
3 6 2 
2 3 2 
2 2 2 
111 
2 2 1 
111 
111 
111 
111 
0 10 
111 
Oil 
111 
Oil 
111 
111 
111 
111 
2 2 2 
3 2 2 
4 3 3 
2 3 2 
3 2 
4 5 5 
2 3 4 
2 3 3 
2 2 2 
2 11 
12 2 
112 
112 
111 
113 
111 
111 
111 
111 
111 
111 
111 
112 
12 2 
114 
3 3 3 
3 3 4 
4 4 
5 7 
4 6 5 5 
4 5 4 15 
2 2 3 5 7 
2 2 3 6 7 
2 2 2 4 6 
2 2 3 3 5 
1 2 2 2 3 7 6 
3 1 1 3 3 5 6 
1 2 2 2 2 5 7 
1 3 3 2 2 5 6 
1 2 2 2 2 5 7 
1 2 2 3 3 5 6 
1 2 2 3 4 6 
1 2 2 4 5 5 
12 13 3 
2 2 3 3 5 
2 3 3 4 
6 4 3 
3 5 
Figure 2: Representative silk-density image (A) and distribution data for animal and 
excreta positions (F). Silk-density data have been adjusted to a ten-level ordinal scale 
with 9 representing the highest observed silk densities. Note that the most dense silk is 
found mainly at the outer edge of the container. Figure 2B shows the distribution of 
fecal material (F) and the dead animals’ last positions (A). Data matrices such as these 
were used in the Model 1 and Model 2 analyses. 
6 6 
a 0011221000 
M 44110000121113 
842011233222011014 
552200111111002233 
954341234443321100029 
33774201324432003521459 
11221133443344220100239 
545 6 0022112211001111469 
3340012423487112200003359 
85771000101354001100014469 
21450111311111011200001256 
54651000101111100000522399 
32010011100000110010001276 
53320000000010001000002479 
322001000000000000000226 
66010000000100000 0 01449 
22000000000001011 0 00339 
3311000000000000001257 
6100000001011111101279 
21110100000000000449 
3110000100010001688 
2101011111123499 
110001002399 
8 7 5 6 7 9 9 
9 9 
B 6654665555 
77525566665555 
977654463324656649 
994477442655666655 
959978742000011442765 
96799871200000044777799 
97877000000000003787677 
97877110000000000567889 
9767451000000000002257669 
99877550000000000000244879 
95567340000110000220514349 
98566231000100013013595569 
95567210000000022124150669 
99567332011202101102222679 
965655336610000022003455 
97766205000100011332589 
97764540025000110002577 
9664542331000110000249 
9945532000000000055459 
99675512061001555489 
9974431166261120339 
9954320110125689 
994444444467 
9 9 9 9 9 9 
Figure 3: Representative silk density data (A) and live animal frequency 
distribution data (B). The silk-density scale is linear and is presented as in Fig. 2A. The 
animal distribution data have been transformed by Log e to indicate that animals did 
exhibit some short-time presence in the central (low silk density) area. Data such as 
these were used in the Model 3 approximation. 
