Fig. 6
From: Sexual dimorphism and morphological integration in the orchid bee brain
Morphological integration between neuropils exhibits a sexually dimorphic pattern. Correlation matrix showing the strength of morphological integration between neuropil in the brain of (A) Euglossa dilemma males and (B) Euglossa dilemma females. The colour bar represents the strength of the correlation, which ranges from negative 1 to positive 1. Each pair-wise correlation displays a colour within this gradient that is equivalent to the value of the correlation. Most correlations are non-significant, indicating some independence from other brain regions and are shown as crossed values. Neuropils are labelled with the following abbreviations: antennal lobes (AL), anterior optic tubercle (AOT), central complex (CC), lamina (La), lateral horn (LH), lobula (Lo), medulla (Me), mushroom body (MB).
