Az erdőssztyep az eurázsiai lomboserdők és sztyeppék között húzódó
átmeneti vegetációs zóna, ami számos védett növény- és állatfajnak nyújt
élőhelyet. Erről az érdekes, és természetvédelmi szempontból igen
jelentős élőhelyről szól a napokban a Biodiveristy and Conservation-ben megjelent cikkünk.
A Bátori Zoltán és Tölgyesi Csaba által vezetett kutatásban kazahsztáni
és magyarországi homoki erdőssztyeppeken vizsgáltuk az erdők, a
sztyeppek és a szegélyek növényzetét. Mi a kazahsztáni terepi
mintavételben vettünk részt, így erről osztunk meg az alábbiakban néhány
képet.
A cikk hivatkozása és absztraktja az alábbiakban olvasható.
Bátori, Z., Erdős, L., Kelemen, A., Deák, B., Valkó, O., Gallé, R., Bragina, T. M., Kiss, P.J., Kröel-Dulay, G., Tölgyesi, C. (2017): Diversity patterns in sandy forest-steppes – a comparative study from the western and central Palaearctic. Biodiversity and Conservation doi: 10.1007/s10531-017-1477-7
Abstract
The Palearctic forest-steppe biome is a narrow vegetation zone between the temperate forest and steppe biomes, which provides important habitats for many endangered species and represents an important hotspot of biodiversity. Although the number of studies on forest–grassland mosaics is increasing, information currently available about the general compositional and structural patterns of Eurasian forest-steppes is scarce. Our study aimed to compare the habitat structure, species composition and diversity patterns of two distant sandy forest-steppes of Eurasia. We compared 72 relevés made in the main habitat components (forest, forest edge and grassland) of sandy forest-steppes in three Hungarian and three Kazakh sites. The size of the plots was 25 m2. Species number, Shannon diversity and species evenness values were calculated for each plot. Fidelity calculations and linear mixed effects models were used for the analyses. We found that the vegetation and diversity patterns of the two forest-steppes are similar and their components play important roles in maintaining landscape-scale diversity. Despite the higher species richness in Hungary, Shannon diversity was higher in Kazakhstan. The deciduous forest edges of both areas had significantly higher species richness than the neighbouring habitats (forests and grasslands); therefore they can be considered local biodiversity hotspots. Due to the special characteristics of this vegetation complex, we emphasize the high conservation value of all landscape components as a coherent system throughout the entire range of the Eurasian forest-steppe biome.
A cikk hivatkozása és absztraktja az alábbiakban olvasható.
Bátori, Z., Erdős, L., Kelemen, A., Deák, B., Valkó, O., Gallé, R., Bragina, T. M., Kiss, P.J., Kröel-Dulay, G., Tölgyesi, C. (2017): Diversity patterns in sandy forest-steppes – a comparative study from the western and central Palaearctic. Biodiversity and Conservation doi: 10.1007/s10531-017-1477-7
Abstract
The Palearctic forest-steppe biome is a narrow vegetation zone between the temperate forest and steppe biomes, which provides important habitats for many endangered species and represents an important hotspot of biodiversity. Although the number of studies on forest–grassland mosaics is increasing, information currently available about the general compositional and structural patterns of Eurasian forest-steppes is scarce. Our study aimed to compare the habitat structure, species composition and diversity patterns of two distant sandy forest-steppes of Eurasia. We compared 72 relevés made in the main habitat components (forest, forest edge and grassland) of sandy forest-steppes in three Hungarian and three Kazakh sites. The size of the plots was 25 m2. Species number, Shannon diversity and species evenness values were calculated for each plot. Fidelity calculations and linear mixed effects models were used for the analyses. We found that the vegetation and diversity patterns of the two forest-steppes are similar and their components play important roles in maintaining landscape-scale diversity. Despite the higher species richness in Hungary, Shannon diversity was higher in Kazakhstan. The deciduous forest edges of both areas had significantly higher species richness than the neighbouring habitats (forests and grasslands); therefore they can be considered local biodiversity hotspots. Due to the special characteristics of this vegetation complex, we emphasize the high conservation value of all landscape components as a coherent system throughout the entire range of the Eurasian forest-steppe biome.
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| Bátori Zoli mintavétel közben. |
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| Egyik leggyakoribb legelő állat a jávorszarvas. |
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| Homoki erdőssztyepp a Naurzum Nemzeti Parkban. |
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| Fajgazdag erdőszegély. |
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