Table 3.

Results of least-squares linear regression analyses of respirometry variables, on body mass, of the phases comprising the gas-exchange cycles

Regression statistics
DGC parametersSlopeInterceptr2Fd.f.NP
log10 (CO2 emission volume)       
Closed (all true DGC species) 1.398±0.125 -7.152±0.353 0.89 124.31,16 18 <0.0001 
Flutter (all species) 0.967±0.151 -4.806±0.418 0.62 42.61,26 28 <0.0001 
Flutter (all true DGC species) 1.190±0.087 -5.611±0.242 0.92 186.21,17 19 <0.0001 
Interburst (all non-DGC species) 0.903±0.097 -3.863±0.262 0.94 87.51,6 8 <0.0001 
Open (all species) 1.103±0.094 -4.723±0.260 0.84 137.61,26 28 <0.0001 
Open (all true DGC species) 1.226±0.029 -5.250±0.080 0.99 1794.81,17 19 <0.0001 
Open (all non-DGC species) 0.962±0.116 -3.970±0.314 0.92 69.21,6 8 <0.0002 
log10 (DGC phase duration)       
Closed (all true DGC species) 0.690±0.089 -2.749±0.250 0.79 60.41,16 18 <0.0001 
Flutter (all species) 0.328±0.081 -0.977±0.225 0.38 16.21,26 28 <0.0005 
Flutter (all true DGC species) 0.473±0.097 -1.419±0.270 0.58 23.61,17 19 <0.0002 
Interburst (all non-DGC species) 0.210±0.058 -0.479±0.156 0.69 13.41,6 8 <0.011 
Open (all species) 0.178±0.082 -1.122±0.227 0.15 4.71,26 28 <0.04 
Open (all true DGC species) 0.218±0.020 -1.412±0.054 0.88 122.61,17 19 <0.0001 
Open (all non-DGC species) 0.208±0.035 -0.751±0.095 0.85 35.11,6 8 <0.001 
log10 (CO2 emission rate)       
Closed (all true DGC species) 0.709±0.083 -4.404±0.236 0.82 71.81,16 18 <0.0001 
Flutter (all species) 0.659±0.101 -3.830±0.279 0.62 42.71,26 28 <0.0001 
Flutter (all true DGC species) 0.717±0.038 -4.192±0.106 0.95 347.71,17 19 <0.0001 
Interburst (all non-DGC species) 0.210±0.058 -0.479±0.156 0.69 13.41,6 8 <0.011 
Open (all species) 0.926±0.060 -3.601±0.165 0.90 240.21,26 28 <0.0001 
Open (all true DGC species) 1.009±0.036 -3.838±0.100 0.98 785.81,17 19 <0.0001 
Open (all non-DGC species) 0.754±0.091 -3.219±0.248 0.92 67.91,6 8 <0.0002 
log10 (gas-exchange frequency)       
All species -0.377±0.081 0.398±0.224 0.45 21.61,26 28 <0.0001 
All true DGC frequencies -0.526±0.107 0.885±0.297 0.59 24.21,17 19 <0.0002 
All non-DGC frequencies -0.219±0.027 -0.222±0.074 0.91 63.71,6 8 <0.0003 
DGC, discontinuous gas exchange.       
Regression statistics
DGC parametersSlopeInterceptr2Fd.f.NP
log10 (CO2 emission volume)       
Closed (all true DGC species) 1.398±0.125 -7.152±0.353 0.89 124.31,16 18 <0.0001 
Flutter (all species) 0.967±0.151 -4.806±0.418 0.62 42.61,26 28 <0.0001 
Flutter (all true DGC species) 1.190±0.087 -5.611±0.242 0.92 186.21,17 19 <0.0001 
Interburst (all non-DGC species) 0.903±0.097 -3.863±0.262 0.94 87.51,6 8 <0.0001 
Open (all species) 1.103±0.094 -4.723±0.260 0.84 137.61,26 28 <0.0001 
Open (all true DGC species) 1.226±0.029 -5.250±0.080 0.99 1794.81,17 19 <0.0001 
Open (all non-DGC species) 0.962±0.116 -3.970±0.314 0.92 69.21,6 8 <0.0002 
log10 (DGC phase duration)       
Closed (all true DGC species) 0.690±0.089 -2.749±0.250 0.79 60.41,16 18 <0.0001 
Flutter (all species) 0.328±0.081 -0.977±0.225 0.38 16.21,26 28 <0.0005 
Flutter (all true DGC species) 0.473±0.097 -1.419±0.270 0.58 23.61,17 19 <0.0002 
Interburst (all non-DGC species) 0.210±0.058 -0.479±0.156 0.69 13.41,6 8 <0.011 
Open (all species) 0.178±0.082 -1.122±0.227 0.15 4.71,26 28 <0.04 
Open (all true DGC species) 0.218±0.020 -1.412±0.054 0.88 122.61,17 19 <0.0001 
Open (all non-DGC species) 0.208±0.035 -0.751±0.095 0.85 35.11,6 8 <0.001 
log10 (CO2 emission rate)       
Closed (all true DGC species) 0.709±0.083 -4.404±0.236 0.82 71.81,16 18 <0.0001 
Flutter (all species) 0.659±0.101 -3.830±0.279 0.62 42.71,26 28 <0.0001 
Flutter (all true DGC species) 0.717±0.038 -4.192±0.106 0.95 347.71,17 19 <0.0001 
Interburst (all non-DGC species) 0.210±0.058 -0.479±0.156 0.69 13.41,6 8 <0.011 
Open (all species) 0.926±0.060 -3.601±0.165 0.90 240.21,26 28 <0.0001 
Open (all true DGC species) 1.009±0.036 -3.838±0.100 0.98 785.81,17 19 <0.0001 
Open (all non-DGC species) 0.754±0.091 -3.219±0.248 0.92 67.91,6 8 <0.0002 
log10 (gas-exchange frequency)       
All species -0.377±0.081 0.398±0.224 0.45 21.61,26 28 <0.0001 
All true DGC frequencies -0.526±0.107 0.885±0.297 0.59 24.21,17 19 <0.0002 
All non-DGC frequencies -0.219±0.027 -0.222±0.074 0.91 63.71,6 8 <0.0003 
DGC, discontinuous gas exchange.       

CO2 emission volume is in ml; DGG duration is in h; CO2emission rate is in ml h-1; gas-exchange frequency is in mHz.

Values are means ± S.E.M.

View Large
Close Modal
This Feature Is Available To Subscribers Only

or Create an Account

Close Modal
Close Modal