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Table 6 Isolation indices for different barriers between Nasonia vitripennis wasps from different strains but same microhabitat, and wasps from different strains and different microhabitats

From: The emergence of ecotypes in a parasitoid wasp: a case of incipient sympatric speciation in Hymenoptera?

Origin of couples

Barrier

Ecological

Sexual

Postmating

Total

Same strains vs. diff. strains from the same ms-clusters (k = 3)

0

0.075*

0.054

0.128

Same strains vs. diff. strains from the same ms-clusters (k = 5)

0

0.12*

0.217*

0.328

Same strains vs. diff. strains from the same microhabitat

0

0.033

0.262*

0.259

Diff. strains within the same ms-cluster (k = 3) vs. strains from diff. clusters

0

− 0.048

0.302*

0.258

Diff. strains within the same ms-cluster (k = 5) vs. strains from diff. clusters

0

− 0.093

0.132*

0.039

Diff. strains within the same habitat vs. strains from strains from diff. habitats

0.458*

0.006

0.084

0.525

  1. Data were calculated according to Sobel and Chen [139] using olfactometer data for ecological isolation, data on the occurrence of copulations for sexual isolation, and data on the number of F1-female offspring for postmating isolation. Significant barriers are in bold