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Table 1.

Osmotic increase following desiccation

FamilyButhidae
Scorpionidae
SpeciesB. judaicusL. quinquestriatusS. m. fuscusS. m. palmatus
Initial mass (g) 2.009±0.091 2.543±0.191 1.913±0.089 1.951±0.090 
 Haemolymph osmolarity (mOsm 1−1   
Initial 569±3 (47) 605±5 (36) 572±6 (38) 573±6 (37) 
 Haemolymph osmolarity increase (percentage of initial)    
5% Mass loss 5.1±0.9 (9) 3.8±1.7 (8) 14.8±1.3 (6) 5.2±1.6 (8) 
10% Mass loss 6.5±2.0 (8) 8.1±2.4 (8) 22.9±2.6 (7) 11.1±2.9 (8) 
15% Mass loss 14.6±2.3 (9) 11.3±3.9 (8) 30.3±5.0 (6) 24.9±4.0 (6) 
20% Mass loss 18.8±4.0 (8) 25.9±2.5 (4) 39.1±5.1 (7) 30.1±4.5 (6) 
FamilyButhidae
Scorpionidae
SpeciesB. judaicusL. quinquestriatusS. m. fuscusS. m. palmatus
Initial mass (g) 2.009±0.091 2.543±0.191 1.913±0.089 1.951±0.090 
 Haemolymph osmolarity (mOsm 1−1   
Initial 569±3 (47) 605±5 (36) 572±6 (38) 573±6 (37) 
 Haemolymph osmolarity increase (percentage of initial)    
5% Mass loss 5.1±0.9 (9) 3.8±1.7 (8) 14.8±1.3 (6) 5.2±1.6 (8) 
10% Mass loss 6.5±2.0 (8) 8.1±2.4 (8) 22.9±2.6 (7) 11.1±2.9 (8) 
15% Mass loss 14.6±2.3 (9) 11.3±3.9 (8) 30.3±5.0 (6) 24.9±4.0 (6) 
20% Mass loss 18.8±4.0 (8) 25.9±2.5 (4) 39.1±5.1 (7) 30.1±4.5 (6) 

Initial body mass and haemolymph osmolarities, and osmotic increase following desiccation to the various experimental mass loss levels at 30°C and 40-60%RH. Values are means ± s.e.m.; (N), number of scorpions.

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