Figure 4. Spatial maps showing the geographic distribution of selected cyanobacterial natural products. ; (A) Features were binned by their distribution patterns across the eight main geographical locations, each bin represented by a node with edges linking bins differing by one location. Number of features in each bin is presented according to size and color scale from white (0) to red (10,000) as indicated by the scale bar on the top. Spatial patterns are represented for selected natural products within these bins. Inserts in each map display zoomed-in sections of Panama, Curaçao and Papua New Guinea. Each sample is designated to a specific coordinate based on GPS coordinates of the collection site (multiple samples are represented by spots placed around the collection site). See the URL provided below. (B) Spatial maps display chemogeographical distribution and abundance of barbamide (1) and two barbamide analogs (2, 3). Relative abundance is presented by Jet color scale from low (blue) to high (red). HI-Hawaii, NAC-Curaçao, PAB-Panama Bocas del Toro, PAC-Panama Coiba, PAG-Panama Gulf of Chiriqui, PAP-Panama Portobelo, PAL-Palmyra Atoll, PNG-Papua New Guinea.