Table 1: Number of detections of culturable bacterial species found on eggshells of Purple Martins before and after clutch. From a total of 59 eggs (18 sampled before clutch and 41 sampled after clutch), 66 different bacterial species were identified. The prevalence of bacterial genera, families, and phyla was calculated from the detections recorded for each. A Fisher’s exact test comparing the frequency of the most prevalent genera, families, and phyla did not reveal a significant difference before and after clutch completion.

Number of Detections
Phylum Family Genus/Species Before After
Actinobacteria Microbacteriaceae Curtobacterium flaccumfaciens 1 0
Alpha-proteobacteria Brucellaceae Pseudochrobactrum kiredjianiae 0 2
Alpha-proteobacteria Sphingomonadaceae Sphingomonas ginsenosidivorax 0 1
Alpha-proteobacteria Sphingomonadaceae Sphingomonas mucosissima 1 0
Bacteroidetes Sphingobacteriaceae Sphingobacterium anhuiense 0 1
Bacteroidetes Sphingobacteriaceae Sphingobacterium kitahiroshimense 0 3
Bacteroidetes Sphingobacteriaceae Sphingobacterium shayense 0 1
Beta-proteobacteria Alcaligenaceae Achromobacter xylosoxidans 1 0
Beta-proteobacteria Comamonadaceae Variovorax boronicumulans 0 1
Beta-proteobacteria Comamonadaceae Variovorax ginsengisoli 0 1
Beta-proteobacteria Neisseriaceae Prolinoborus fasciculus 0 1
Beta-proteobacteria Oxalobacteraceae Duganella zoogloeoides 0 1
Firmicutes Staphylococcaceae Staphylococcus epidermidis 1 3
Gamma-proteobacteria Enterobacteriaceae Citrobacter freundii 0 1
Gamma-proteobacteria Enterobacteriaceae Enterobacter amnigenus 0 2
Gamma-proteobacteria Enterobacteriaceae Enterobacter ludwigii 1 1
Gamma-proteobacteria Erwiniaceae Erwinia billingiae 0 3
Gamma-proteobacteria Erwiniaceae Pantoa eucalypti 0 1
Gamma-proteobacteria Erwiniaceae Pantoea rodasii 0 1
Gamma-proteobacteria Erwiniaceae Pantoea vagans 0 1
Gamma-proteobacteria Moraxellaceae Acinetobacter calcoaceticus 0 1
Gamma-proteobacteria Moraxellaceae Acinetobacter lwoffi 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas abietaniphila 0 5
Gamma-proteobacteria Pseudomonadaceae Pseudomonas alcaligenes 0 3
Gamma-proteobacteria Pseudomonadaceae Pseudomonas arsenicoxydans 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas avellanae 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas baetica 0 3
Gamma-proteobacteria Pseudomonadaceae Pseudomonas brenneri 1 3
Gamma-proteobacteria Pseudomonadaceae Pseudomonas canabina 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas cedrina 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas chlororaphis 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas cichorii 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas ficuserectae 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas graminis 1 4
Gamma-proteobacteria Pseudomonadaceae Pseudomonas helmanticensis 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas hunanensis 1 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas japonica 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas jessenii 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas koreensis 1 3
Gamma-proteobacteria Pseudomonadaceae Pseudomonas libanensis 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas lurida 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas lutea 1 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas migulae 1 3
Gamma-proteobacteria Pseudomonadaceae Pseudomonas mohnii 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas moorei 2 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas oryzihabitans 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas parafulva 1 0
Gamma-proteobacteria Pseudomonadaceae Pseudomonas plecoglossicida 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas poae 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas prosekii 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas putida 2 10
Gamma-proteobacteria Pseudomonadaceae Pseudomonas reinekei 2 3
Gamma-proteobacteria Pseudomonadaceae Pseudomonas rhizophaerae 1 6
Gamma-proteobacteria Pseudomonadaceae Pseudomonas rhodesiae 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas saponiphila 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas simiae 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas syringae 1 5
Gamma-proteobacteria Pseudomonadaceae Pseudomonas tremae 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas trivialis 0 2
Gamma-proteobacteria Pseudomonadaceae Pseudomonas vancouverensis 0 1
Gamma-proteobacteria Pseudomonadaceae Pseudomonas xanthomarina 0 2
Gamma-proteobacteria Rhodanobacteraceae Luteibacter anthropi 0 1
Gamma-proteobacteria Xanthomonadaceae Stenotrophomonas maltophilia 0 1
Gamma-proteobacteria Xanthomonadaceae Stenotrophomonas rhizophila 7 15
Gamma-proteobacteria Xanthomonadaceae Xanthomonas gardneri 0 1
Gamma-proteobacteria Xanthomonadaceae Xanthomonas vesicatoria 0 1