STRUCTURE OF POPULATION MOSAIC AND FEATURES OF DEVELOPMENT OF ACER MONO MAXIM. AND ACER UKURUNDUENSE TRAUTV. ET MEY. IN KOREAN PINE-BROADLEAVED FOREST IN THE SOUTH OF THE RUSSIAN FAR EAST

Zhmerenetsky A.A., Omelko A.M., Ukhvatkina O.N., Sibirina L.A.

RJEE Vol. 6 (1). 2021 | DOI: 10.21685/2500-0578-2021-1-1
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Receipt date 17.08.2020 | Publication date 26.03.2021

 

STRUCTURE OF POPULATION MOSAIC AND FEATURES OF DEVELOPMENT OF ACER MONO MAXIM. AND ACER UKURUNDUENSE TRAUTV. ET MEY. IN KOREAN PINE-BROADLEAVED FOREST IN THE SOUTH OF THE RUSSIAN FAR EAST

 

A. A. Zhmerenetsky¹, A. M. Omelko², O. N. Ukhvatkina³, L. A. Sibirina⁴
Federal Scientific center of the East Asia terrestrial biodiversity Far Eastern Branch, Russian Academy of Sciences, 159 100 let Vladivostoku avenue, Vladivostok, 690022, Russia
¹ zmerenetsky@mail.ru, ² omelko@biosoil.ru, ³ ukhvatkina@biosoil.ru, ⁴ sibirina@biosoil.ru

 

Abstract. We analyzed the structure of population mosaics and ontogenetic spectra of two tree species – Acer mono and Acer ukurunduense. The study was performed in a mixed Korean pine-broadleaved forest in the southern part of the Sikhote-Alin mountain range. The data for the work were obtained on two permanent sample plots of 1.5 and 10.5 ha, where we carried out a complete stem-mapping of the stand (the number of Acer mono and Acer ukurunduense individuals was 909 and 3632, respectively). The analysis of the population mosaic structure was performed using the pair-correlation function g(r), K2(r) function, the spherical contact function H_s(r), and the distribution function of the distances to the k-th neighbor D_k(r). The obtained ontogenetic spectra show that both studied species stably coexist with other tree species. The results of the analysis of the structure of the mosaics of individuals showed that their distribution in both Acer mono and Acer ukurunduense changes from aggregated to close to random as they go through stages of ontogenetic development. At the same time, as in other previously analyzed species, positive associations between individuals are not due to intra- and interspecific interactions, but to similar requirements for the conditions necessary for development. First of all, individuals need light, a sufficient amount of which they can obtain only in canopy gaps. This, in particular, is indicated by the differences in their vitality depending on their location under the stand canopy and in the gaps, as well as the fact that the average radius of groups of individuals in different ontogenetic states is similar and approximately coincides with the average size of gaps. Consequently, the formation of the population mosaics of Acer mono and Acer ukurunduense is influenced by the same factors as in the case of the dominating species of the Korean pine-broadleaved forests.

 

Keywords: population pattern, species interaction, null model, point pattern analysis, pair-correlation function, spatial structure, age structure, pine-broadleaved forest, Sikhote-Alin

 

Funding. This work was supported by the Russian Foundation for Basic Research (grants No. 18-04-00278, No. 18-04-00120).

 

For citation: Zhmerenetsky A.A., Omelko A.M., Ukhvatkina O.N., Sibirina L.A. Structure of population mosaic and features of development of Acer mono Maxim. and Acer ukurunduense Trautv. et Mey. in korean pine-broadleaved forest in the south of the Russian far east. Russian Journal of Ecosystem Ecology. 2021;6(1). (In Russ.). Available from: https://doi.org/10.21685/2500-0578-2021-1-1