From: Spatial and temporal patterns in the diet of barn owl (Tyto alba) in Cyprus
Prey type | Summer 2013 | Autumn 2013 | Winter 2013–2014 | Spring 2014 | Summer 2014 | |||||
---|---|---|---|---|---|---|---|---|---|---|
N | B | N | B | N | B | N | B | N | B | |
Insects | 2.7 | 0.1 | 1.3 | 0.1 | 0.4 | 0.1 | 0.4 | 0.1 | – | – |
Birds | 1.8 | 3.0 | 4.2 | 5.8 | 3.0 | 3.8 | 1.7 | 2.6 | 3.5 | 6.0 |
Mammals | 95.5 | 96.9 | 94.5 | 94.1 | 96.6 | 96.1 | 97.9 | 97.3 | 96.5 | 94.0 |
Mice (Mus spp.) | 64.6 | 52.0 | 70.4 | 48.8 | 72.2 | 44.2 | 76.9 | 57.2 | 76.9 | 62.3 |
Rats (Rattus spp.) | 9.1 | 36.4 | 11.9 | 41.4 | 16.2 | 49.5 | 9.7 | 36.3 | 6.6 | 27.0 |
Lesser White-toothed shrew (Crocidura suaveolens) | 20.8 | 8.4 | 10.7 | 3.7 | 7.5 | 2.3 | 9.6 | 3.6 | 11.0 | 4.4 |
Etruscan shrew (Suncus etruscus) | 0.9 | 0.1 | 1.5 | 0.2 | 0.7 | 0.1 | 1.7 | 0.2 | 2.0 | 0.3 |
Total number of prey | 331 | – | 1063 | – | 759 | – | 934 | – | 225 | – |
Prey diversity | 1.24 | Â | 1.28 | Â | 1.18 | Â | 1.12 | Â | 1.16 | Â |
Evenness | 0.69 | Â | 0.71 | Â | 0.70 | Â | 0.58 | Â | 0.60 | Â |
Median prey weight (g) | 4.86 | Â | 3.73 | Â | 2.45 | Â | 2.30 | Â | 1.49 | Â |
Interquartile range: 25–75% | 22.93 |  | 26.74 |  | 30.40 |  | 24.19 |  | 21.9 |  |
Average prey weight (g) | 14.93 | Â | 17.29 | Â | 19.61 | Â | 16.1 | Â | 14.8 | Â |