Full-text - Norsk entomologisk forening

Table 11. Caloric values per g dry weight and per g ash-free dry weight for some dominant invertebrate
species n = number of samples. Mean values are given together with SD values and minimumand
maximum values
callg dry weight callg ash-free dry weight ,
- -
Species n X SD MinIMax X SD MinIMax
Mitopus morio
Nebria gyllenhali
Nebria nivalis
Patrobus septentrionis
Calathus melanocephalus
Melasoma collaris
Otiorrhynchus dubius
Zygaena exulans
eggs
larvae, 3-15 mg dry
larvae, 15-30 mg dry
larvae, 30-51 mg dry
larvae, total
pupaf:
imagines
o. 4 &,Lar" , , , , ,_---
o 2
.. ,-,,.-. Pupae
.; ..;"". -
, ...... 0
...... ,_.....' < / '
,,__... .... .-'
Eggs
5 1 o
15 20 O c
Fig. 12. Respiration rates in different developmental
stages of Zygaena exulazs, measured at
5, 10, 15 and 20° C. Only the mean values are
drawn. Table 111 gives more information.
values listed at each temperature in Table
111. Such high recorded values are listed in
Table IV.
The caloric values of the species investigated
lie within the range of most earlier investigations
among invertebrates (e.g. Golley 1961,
Slobodkin & Richman 1961, Willner 1972,
Hofsvang 1973). For some of the species the
difference between the Jowest and the highest
value is rather large. As the caloric value of
dried animal tissne is mainly dependent on
Fig. 13. Wean values of oxygen consumption for
imagines of different invertebrate species at 5,
10, 15 and 20' C. 1 = Otiorrhynchus dubius. 2 =
Amara alpina. 3 =Nebria nivalis, 4 = Zygaena
exulans 9, 5 =Calathus melanocephalus, 6 = Patrobus
septentrionis, 7 = Nebria gyllenhali, 8 =
Mitopus morio, 9 = Melasoma collaris, 10 = Zygaena
exvlans $.
the fat content (Skar et al. 1972), it is reasonable
that the caloric value will vary according
to age, sex, and season. These factors