Table 1 Flight performances of tagged hornets in the field cage versus free-flying in the field

From: Searching for nests of the invasive Asian hornet (Vespa velutina) using radio-telemetry

  

In a field cage

  

Good flyers

Poor flyers

Total

In the field

Good flyers

17

7

24

Poor flyers

0

12

12

Total

17

19

36

  1. Flight performance of hornets fitted with radio-telemetry tags, or hand-made mimics of such tags, were judged first in a flight cage 3 m x 3 m x 2 m and subsequently on release in an open field. Hornets demonstrating repeated horizontal flights or ascending flights after initial release from an elevated position (1.3 m inside the field cage; 1.6 m in the field) were categorised as good flyers. Hornets predominately demonstrating descending flights were categorised as poor flyers. Analysed via two-by-two contingency table using Fisher’s exact test; two-tailed p value = 0.0000452 showing strong association between flight performance in both arenas