Ábrahám Levente (szerk.): Válogatott tanulmányok IX. - Natura Somogyiensis 24. (Kaposvár, 2014)

Szűcs D. - Kitti Horváth K. - Horváth Gy. F.: Comparing small mammal faunas based on barn owl (Tyto alba) pellets collected in two different lowland landscapes

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Natura Somogyiensis

Table 1: Number of individuals and relative proportion of taxa determined in the two studied mesoregions

Drávamenti-floodplain

Győri-basin

Spccics/täxd (code)

ni

Pi

ni

Pi

Talpa europaea (TEU)

2

0.01

i

0.03

Sorex araneus (SAR)

626

4.49

880

28.30

Sorex minutus (SMI)

228

1.63

267

8.59

Neomys fodiens (NFO)

68

0.49

11

0.35

Neomys anomalus (NAN)

159

1.14

9

0.29

Neomys species (Nsp)

46

0.33

4

0.13

Crocidura suaveolens (CSU)

1057

7.58

67

2.16

Crocidura leucodon (CLE)

480

3.44

171

5.50

My odes glareolus (MGL)

91

0.65

30

0.96

Microtus agrestis (MAG)

202

1.45

5

0.16

Microtus arvalis (MAR)

6038

43.28

922

29.66

Microtus oeconomus (MOC)

0

0.00

45

1.45

Microtus subterraneus (MSU)

45

0.32

14

0.45

Arvicola amphibius (AAM)

192

1.38

7

0.23

Rattus norvegicus (RNO)

84

0.60

19

0.61

Rattus rattus (RRA)

16

0.11

7

0.23

Rattus species (Rsp)

20

0.14

5

0.16

Apodemus agrárius (AAG)

1106

7.93

67

2.16

Apodemus sp. (Asp)

1774

12.72

258

8.30

Apodemus ind. (Aind)

562

4.03

55

1.77

Mus minutus (MMI)

271

1.94

109

3.51

Mus spicilegus (MSP)

284

2.04

50

1.61

Mus musculus (MMU)

113

0.81

19

0.61

Mus sp. (Mus)

409

2.93

86

2.77

Muscardinus avellanarius (MAV)

77

0.55

1

0.03

Total

13950

100

3109

100

in that landscape. The third one was the other Sorex species (pygmy shrew Sorex minutus) at Győr basin, as for the Drava floodplain it was the striped field mouse (Apodemus agrárius). After the third most frequent species, the dominance order showed large variety in both mesoregions. The recorded presence of the glacial relict root vole (Microtus oeconomus) in the area of the Fertő-Hanság National Park was considered to have low relative frequency (1.45%). The 45 identificated specimens provided proof about the presence of this strictly protected species in that landscape.

The homogeneity test (G-test) of the frequency distribution based on the summarized data of the two landscapes showed significant difference only for the two Sorex species (common shrew: G =19.28, P < 0.001; pygmy shrew: G = 5.19, P < 0.05). The significantly high value of the homogeneity test from the total species list (x2 = 2858,52 P < 0.001) meant that regarding frequency distribution, the composition of the revealed