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202 A. Lillehammer parts of the area (Figs. 2 and 3), and it is only in the inner areas that the mean January temperature falls below 0° C. In the outermost areas the mean January temperature is more than +2° C (Fig. 3.1). The whole area experiences heavy precipitation between 1200 mm and 2000 mm in the outer areas, and more than 2000 mm in the inner areas· On the coastal area of the Haugesund peninsula, west of Skjoldefjorden and Alfjorden, heights of more than 100 m a.s.l. are rare. In the central areas, east of Alfjorden and Skjoldefjorden, the mountains are higher, between 500 and 700 m a.s.!. in the outer parts and up to 1000 m a.s.l. in the inner parts (the area of Sandeid and Vikedal). In this area there are prominent valleys. In the inner areas, east of Vikedal, the mountains are even higher (up to 1600 m a.s.!. in the north-eastern parts) and the fjords cut deeply into the mountain massif. The vegetation of the area of the Haugesund peninsula consists mainly of bog and heath vegetation. Wooded areas total about 8 0 /0. In the central area the wooded areas on average constitute about 24 % of the area. In the inner area, which is mainly mountainous, the wooded area totals about 8 %. River and stream descriptions In the inner areas, streams and rivers are abundant and the deep valleys contain some of the longest and largest rivers in Rogaland. The streams alternate between fast flowing and more slow flowing reaches. The stone size is very variable at all altitudes and the streams are generally fringed by dwarf willow up to about 7-800 m a.s.l. In the lowland areas there is often a dense fringe of alder, willow and birch along the rivers and streams, in which the substrate consists of different gravels and stones. Pollution is minimal and only occurs for a short distance near the fjords. In the central areas, the streams are of the same type as in the lowland inner areas. The vegetation is rich along the streams. The streams are seldom polluted to any noticeable degree, and if they are, they flow only a short distance before reaching the sea. The outer areas have very little wooded vegetation except in the shallow valleys. There is often a dense fringe of alder and other deciduous trees along the streams which on the whole are smaller and shorter than in the central and inner areas. Calcium hardness varied to some extent in the lowlands. Values up to 1. 7 mg Ca++/1 were found in the coastal and central areas and up to 0.9 in the inland regions. Usually the values were much lower and below 1.0 mg Ca++/1. In the highest areas up to 0.4 mg Ca + +/1 was measured. Usually the values were much lower. The pH is around 6.0 in the lowlands of the whole area, but on average it is a little higher at the coast than in the inner areas where the lowest pH value measured was 5.3. Stonefly fauna In this area 19 species were collected (Table Ill). Diura bicaudata were taken in lakes and their outlets at higher altitudes, and Dinocras cephalotes was taken in a stream at Suldal. The total number of species in the southern part of West Norway is 20, since lsoperla difformis was taken at Oltedal, ]
Table Ill. Species distribution in selected water Hordaland) courses and the number of specimens taken in the whole of area 1 (North Rogaland and south
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Norsk Entorriologisk Tidsskrift Nor
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451 1 I I I I I I I 4 6 8 10 12 14
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Dry Weight , mg. Fig. 7. Correlatio
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Table 11. Caloric values per g dry
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Talbe IV. Oxygen consumption given
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etween the sexes during the respira
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128 A. Fjellberg Fig. 2. A. sefiten
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130 A. Fjellberg HABITATS Until now
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132 L. Semme the autumn. The prelim
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'~0~1-0611 '96 'lourouy 'uu3 's3asu
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136 J. E. Brittain Fig. 1. The loca
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138 J. E. Brittain period was longe
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140 J. E. Brittain Table 11. Ph~sic
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142 J. E. Brittain Table IV. Physic
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144 J. E. Brittain EPHEMEROPTERA Am
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146 J. E. Brittain 0-3 NYMPHS I I 1
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148 J. E. Brittain 1-3 NYMPHS 01 I
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150 J. E. Brittain Nemzlrella picte
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Page 40 and 41: (Nord-Norwegen) (Trichoptera, Pleco
Page 42 and 43: from anoxia. Drops of haemolymph we
Page 45 and 46: Notes on little known spiders in No
Page 47 and 48: Symphyla and Pauropoda from two con
Page 49 and 50: Symphyla and Pauropoda 163 Table 11
Page 51: sults it is clear that the animals
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Page 56 and 57: 170 T. R. Nielsen Table 1. A compar
Page 59 and 60: Abundance and diversity in the faun
Page 61 and 62: Nocturnal moths 175 Table 1. Number
Page 63 and 64: Nocturnal moths 177 Grimstad Amli 1
Page 65 and 66: Nocturnal moths 179 Am/i. Norway 19
Page 67 and 68: Nocturnal moths 181 Grimstad, Norwa
Page 69 and 70: Nocturnal moths 183 %60 50 40 30 20
Page 71 and 72: Spinosellina forms of Sminthurides
Page 73 and 74: A constant pressure microrespiromet
Page 75: Microrespirometer 189 termination o
Page 78 and 79: 192 F. E. Klallsen The specimens fr
Page 80 and 81: 194 F. E. Klausen REFERENCES Ardii,
Page 82 and 83: 196 A. Lillehammer present in Norwa
Page 84 and 85: 198 A. Lillehammer Results The numb
Page 86 and 87: 200 A. Lillehammer Fennoscandian co
Page 90 and 91: 204 A. Lillehammer carnivorous spec
Page 92 and 93: Table IV. Species distribution, in
Page 94 and 95: Table V. Species distribution in se
Page 96 and 97: 210 A. Lillehammer The bottom of th
Page 98 and 99: 212 A. Lillehammer Blatjemn Diura b
Page 100 and 101: Table VII. Species distribution in
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Page 104 and 105: Table IX. Species distribution in s
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Page 108 and 109: 222 A. Lillehammer Table XI. The pH
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Page 112 and 113: 226 A. Lillehammer Table XVI. The s
Page 114 and 115: 228 A. Lillehammer Fig. 22. Stream
Page 116 and 117: 230 A. Lillehammer Fig. 25. Distrib
Page 124 and 125: 238 A. Lillehammer high altitude la
Page 130 and 131: 244 A. Lillehammer streams and rive
Page 132 and 133: 246 A. Lillehammer Blies (1953, 195
Page 134 and 135: 248 A. Lillehammer streams are to a
Page 136 and 137: 250 A. Lillehammer Muller, K. 1955.
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252 Bokanmeldelser produserende, en
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N orsk Entomologisk Tidsskrift Norw
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