Assessment of intra- and interspecific interactions of wild pistachio (Pistacia atlantica Desf.) and wild almond (Amygdalus spp.) using spatial analysis in mixed stands of Baneh Research Forest, Fars Province, Iran

Document Type : Scientific article

Authors

1 Associate Prof., Department of Remote Sensing and GIS, Faculty of Geography, University of Tehran, Tehran, Iran

2 M.Sc., Department of Natural Resources and Environment, College of Agriculture, Shiraz University, Shiraz

Abstract

Intra and interspecific interactions of plants is one of the important processes in establishing spatial structure of plant communities in semi-arid regions. Additionally, the interactions can be applied in management and rehabilitation of vegetation in these regions. This study was aimed to investigate the spatial pattern of wild pistachio (WP) (Pistacia atlantica Desf.) and wild almond (WA) (Amygdalus spp.) in Baneh Research Forest of Fars province to identify their interactions. In two 150 m × 150 m sample plots, the spatial positions of 798 individuals of two species and their crown diameters were measured. Uni- and bivariate g(r), O-ring, D(r) and kmm(r) were applied to explore the spatial patterns of species. The results showed the heterogeneity of spatial patterns of two species individuals, as well as lower density and higher mean crown area of WP. Moreover, WP and WA individuals were located in mixed clusters, although the positive interaction of conspecifics was stronger than heterospecifics. In small scales, density of conspecifics was almost two times more than heterospecifics. Furthermore, the positive interactions of conspecifics resulted in intense intraspecific competition that negatively influenced their crown areas (p < /em> < 0.05) and was more in WA (in 3 m distance between conspecifics, crown areas of WA and WP were 60% and 20% less than mean, respectively). In general, it was concluded that a mutualistic relationship exists between WP and WA in the study area as a result of their facilitative effects. The quantitative results of this study can be used in silvicultural treatments such as plantation.

Keywords

References

- Andivia, E., Madrigal-González, J., Villar-Salvador, P. and Zavala, M.A., 2018. Do adult trees increase conspecific juvenile resilience to recurrent droughts? Implications for forest regeneration. Ecosphere, 9(6): e02282.
- Armas, C. and Pugnaire, F.I., 2005. Plant interactions govern population dynamics in a semi-arid plant community. Journal of Ecology, 93(5): 978-989.
- Bagheri, J., Salehi, A. and Taheri Abkena, K., 2014. Effective factors on regeneration establishment and quantitative and qualitative characteristics of Pistacia atlantica in different physiographic conditions (Case Study: Khojir National Park). Iranian Forests Ecology, 2(3): 1-12 (In Persian).
- Ballani, F., Pommerening, A. and Stoyan, D., 2019. Mark-mark scatterplots improve pattern analysis in spatial plant ecology. Ecological Informatics, 49: 13-21.
- Delalandre, L. and Montesinos-Navarro, A., 2018. Can co-occurrence networks predict plant-plant interactions in a semi-arid gypsum community? Perspectives in Plant Ecology, Evolution and Systematics, 31: 36-43.
- Erfanifard, Y. and Khosravi, E., 2019. Saltcedar (Tamarix mascatensis) inhibits growth and spatial distribution of eshnan (Seidlitzia rosmarinus) by enrichment of soil salinity in a semi-arid desert. Plant and Soil, 440: 219-231.
- Erfanifard, Y., Nguyen, H.H., Schmidt, J.P. and Rayburn, A., 2018. Fine-scale intraspecific interactions and environmental heterogeneity drive the spatial structure in old-growth stands of a dioecious plant. Forest Ecology and Management, 425: 92-99.
- Erfanzadeh, R., Ghazanfarian, F. and Azarnivand, H., 2014. Different effects of shrubs and trees on seed bank richness and diversity in the understory soil (Case Study: Kerman Province, Sharbabak). Iranian Journal of Applied Ecology, 2(5): 39-50 (In Persian).
- Foronda, A., Pueyo, Y., Arroyo, A.I., Saiz, H., Giner, M.D.L.L. and Alados, C.L., 2019. The role of nurse shrubs on the spatial patterning of plant establishment in semi-arid gypsum plant communities. Journal of Arid Environments, 160: 82-90.
- Garavand, Y., Hosseini, S.M., Ahmadi, K., Ghomi Avili, A. and Ahadi, A., 2016. Investigation on structure of pistachio trees stands in two closed and grazed areas (Baghe Shadi protected area, Yazd). Natural Ecosystems of Iran, 7(2): 89-101 (In Persian).
- Hosseini, A. and Hoseinzadeh, J., 2018. Investigation on regeneration behavior of Pistacia atlantica and Acer cineracens species to recognize their natural establishment pattern in Zagros forests. Applied Biology, 31(3): 41-54 (In Persian).
- Illian, J., Penttinen, A., Stoyan, H. and Stoyan, D., 2008. Statistical Analysis and Modelling of Spatial Point Patterns. John Wiley & Sons Ltd, Chichester, 560p.
- Karimi, M. and Fallah, A., 2017. Spatial pattern and interaction analysis of Quercus Brantii Lindl. and Pistacia Atlantica Desf. in Qalajeh forests of Kermanshah using K2 function. Ecology of Iranian Forests, 5(9): 8-16 (In Persian).
- Kéfi, S., Rietkerk, M., Alados, C.L., Pueyo, Y., Papanastasis, V.P., ElAich, A. and De Ruiter, P.C., 2007. Spatial vegetation patterns and imminent desertification in Mediterranean arid ecosystems. Nature, 449: 213-217.
- López, R.P., Zenteno‐Ruiz, F., Roque‐Marca, N., Moya, L., Villalba, D., Valdivia, S. and Larrea‐Alcázar, D., 2020. Consistent spatial patterns across several plant communities within a region indicate that the same processes may be acting on Andean deserts and semideserts. Journal of Vegetation Science, 31(1): 180-193.
- Moreno‐de las Heras, M., Saco, P.M., Willgoose, G.R. and Tongway, D.J., 2012. Variations in hydrological connectivity of Australian semiarid landscapes indicate abrupt changes in rainfall-use efficiency of vegetation. Journal of Geophysical Research, 117(G3): G03009.
- Okin, G.S., Moreno‐de las Heras, M., Saco, P.M., Throop, H.L., Vivoni, E.R., Parsons, A.J., …. and Peters, D.P.C., 2015. Connectivity in dryland landscapes: shifting concepts of spatial interactions. Frontiers in Ecology and the Environment, 13(1): 20-27.
- Palmeri, L., Barausse, A. and Jorgensen, S.E., 2014. Ecological Processes Handbook. CRC Press, Boca Raton, Florida, 402p.
- Rajala, T., Olhede, S.C. and Murrell, D.J., 2019. When do we have the power to detect biological interactions in spatial point patterns? Journal of Ecology, 107(2): 711-721.
- Ramón, P., Velázquez, E., Escudero, A. and de la Cruz, M., 2018. Environmental heterogeneity blurs the signature of dispersal syndromes on spatial patterns of woody species in a moist tropical forest. PLoS ONE, 13(2): e0192341.
- Rostamikia, Y., Imani, A.A., Fattahi, M. and Sharifi, J., 2010. Site demands, quantitative and qualitative characteristics of wild pistachio in Khalkhal forest. Iranian Journal of Forest and Poplar Research, 17(4): 489-499 (In Persian).
- Wiegand, T. and Moloney, K.A., 2014. Handbook of Spatial Point-Pattern Analysis in Ecology. CRC Press, Boca Raton, Florida, 538p.
- Zhao, R., Zhang, H. and An, L., 2020. Spatial patterns and interspecific relationships of two dominant cushion plants at three elevations on the Kunlun Mountain, China. Environmental Science and Pollution Research, 27: 17339-17349.
Iranian Journal of Forest and Poplar Research
Volume 28, Issue 2 - Serial Number 80
September 2020
Pages 192-203

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