Ábrahám Levente (szerk.): Válogatott tanulmányok IV. - Natura Somogyiensis 15. / Miscellanea 4. (Kaposvár, 2009)
Lánszki József - Sárdi Bertalan - Széles Gabriella: Falvakban és külterületi mezőgazdasági környezetben élő nyestek táplálkozási szokásai
238 Natura Somogyiensis Feeding habits of martens on the basis of prey characteristics Small sized prey species (ranging between 15 and 50 g) were the most important food of martens on both habitat types (Fig. 3a); it means that consumption of these foods was 60.2% in villages (min.-max. 42.4-80.8%) and 50.4% in farms (28.9-64.2%). Effect of habitat type was not significant when calculating percentage of consumed biomass data (t10= 0.84-1.67, P=0.125-0.550), while prey weight distribution for the martens living in the various environments differed (x24 =16.50, P<0.01). The martens typically preyed on terrestrial species (Fig. 3b) both in villages (mean 56.0%, min.-max. 32.9-69.7%), and farm environments (mean 72.4%, min.-max. 64.9- 90.2%), however the habitat type dependent difference only on the level of terrestrial prey was significant (t10=2.27, PO.05). Martens living in villages compared to those living in farms consumed more arboreal prey and less terrestrial prey, but the habitat type dependent difference in this case was not statistically significant (t10=2.09, P=0.063). The overall diet on the basis of prey zonation did not differ significantly (x22= 3.46, P=0.178). Martens living in villages and farms consumed primarily habitat generalist prey species (Fig. 3c) which may live both in open habitats and forests or shrubby areas. It means that consumption ratio of these animals was 84.2% in villages (min.-max. 40.0-99.0%) and 87.3% in farms (82.6-92.0%). Nor the habitat dependent difference (on %B data) (t]0=0.32-1.24, P=0.243-0.754) neither the distribution of prey depending on habitat association in the diet of martens living in different habitat types was not significant (X22=4.90, P=0.086). 100 80 60 NS 40 £о 2 20 NS NS NS NS a)JO P<0.05 b) NS NS Iliű VFVFVFVFVF Village Farm | Village Farm j Village Farm <15 j 15-50 j 51-1001 101-300 300< | | Terrestrial | Arboreal | Aquatic Weight of prey (g) Zonation of prey Village Farm jvillage Farm Village Farm j j Village Farm j Village Farm Village Farm Open field | Forest Generalist | | Wild | Human-linked | Mixed Habitat association of prey Environmental association of prey Fig. 3: Distribution of animal food types in the diet on the basis of weight (a), zonation (b), habitat association (c) and environment association (d) of food species.
