Competition-Productivity Relationship Between Some Common Grasses and Forbs Plant Species in High Altitude Rangelands

Abstract

Facilitation or competition occurs among plant species when one species alter ameliorates the environment for another species or when one species needs the same sources of another species. The objective of this study was to determine to facilitative or competitive effect on Bromus variegatus, Festuca ovina, Koeleria cristata of growing with isolated, Medicago papillosa, Astragalus microcephalus, Thymus parviflorus, and Hypericum scabrum, and arranged in completely randomized design. Plant height, above-and belowground biomass, and above-and belowground Relative Neighbour Effect (RNE) significantly affected main, some first- and second-order interaction depending on the year, grasses species, surrounding. Aboveground biomass increased in grasses, which grow in interaction with legume species, and significant differences were determined between the grass species and years. While average belowground biomass was 26,66 g/plant, the belowground biomass of the grass species grown in interaction with M. papillosa and A. microcephalus was positively affected and it was 31,58 and 34,99 g/plant, respectively. A. microcephalus had a facilitative effect on above ground RNE of the grass species and the other species had a competitive effect. All plant species had a competitive effect on belowground RNE.

Keywords

• Facilitation
• competition
• plant-plant interaction
• plant environment

References

1. Abdul-Rahman A A and Habib S A (1989). Allelopathic effect of alfalfa (Medicago sativa) on bladygrass (Imperata cylindrica). Journal of Chemical Ecology 15: 2289-2300
2. Anthelme F & Michalet R (2009). Grass-to-tree facilitation in an arid grazed environment (Air Mountains, Sahara). Basic and Applied Ecology 10: 437-446
3. Arnow L A (1994). Koeleria macrantha and K. pyramidata (Poaceae): Nomenclatural problems and biological distinctions. Systematic Botany 19: 6-20
4. Bertness M & Callaway R M (1994). Positive interactions in communities. Trends in Ecology and Evolution 9: 191-193
5. Blaser W J Sitters J Hart S P Edwards P J & Venterink H O (2013). Facilitative or competitive effects of woody plants on understorey vegetation depend on N-fixation, canopy shape and rainfall. Journal of Ecology 101: 1598-1603
6. Brooker R W (2006). Plant-plant interactions and environmental change. New Phytologist 171: 271-284
7. Callaway R M & Walker L R (1997). Competition and facilitation: a synthetic approach to interactions in plant communities. Ecology 78: 1958-1965
8. Callaway R M (2007). Positive Interactions and Interdependence in Plant Communities. Springer Dordrecht ,The Netherlands

9. Castanho C T Oliveira A A & Prado P I K L (2015). Does extreme environmental severity promote plant facilitation? An experimental field test in a subtropical coastal dune. Oecologia 178: 855-866
10. Cavieres L A & Sierra-Almeida A (2012). Facilitative interactions do not wane with warming at high elevations in the Ands. Oecologia 170: 575-584
11. Cramer M D Van Cauter A & Bond W J (2010). Growth of N2-fixing African savanna Acacia species is constrained by below-ground competition with grass. Journal of Ecology 98: 156–167
12. Ehlers B K Charpentier A & Grondahl E (2014). An allelopathic plant facilitates species richness in the Mediterranean garrigue. Journal of Ecology 102: 176-185
13. Eldridge D J Bowker M A Maestre F T Roger E Reynolds J F & Whitford W G (2011). Impacts of shrub encroachment on ecosystem structure and functioning: towards a global synthesis. Ecology Letters 14: 709-722
14. Erkovan H I (2007). The determination of nitrogen fixation and transfer in legume and grasses mixtures. In: Turkish Field Crops Congress, 25-27 June, Erzurum, pp. 268-271
15. Erkovan H I Gullap M K & Gul I (2008a). Competition and succession in pastures, rangelands and forage crops. Alınteri Zirai Bilimler Dergisi 14: 27–38
16. Erkovan H I Tan M Halitligil M B & Kıslal H (2008b). Performance of white-clover grasses mixtures: Part-I Dry matter production, botanical composition, nitrogen use efficient, nitrogen rate and yield. Asian Journal of Chemistry 20: 4071-4076
17. Fabbro C D & Prati D (2015). The relative importance of immediate allelopathy and allelopathic legacy in invasive plant species. Basic and Applied Ecology 16: 28-35
18. Forey E Touzard B & Michalet R (2010). Does disturbance drive the collapse of biotic interactions at the severe and of a diversity-biomass gradient? Plant Ecology 206: 287-295
19. Garcia-Cervigon A I Gazol A Sanz V Cameroro J J & Olano J M 2013. Intraspecific competition replaces interspecific facilitation as abiotic stress decreases: The shifting nature of plant-plant interactions. Perspectives in Plant Ecology, Evolution and Systematics 15: 226-236
20. Grant K Kreyling J Heilmeier H Beierkuhnlein C & Jentsch A (2014). Extreme weather events and plant-plant interactions: shifts between competition and facilitation among grassland species in the face of drought and heavy rainfall. Ecological Research 29: 991-1001
21. Gokkus A & Koc A (1996). Canopy and root development of crested wheatgrass in relation to the quantity and time of nitrogen application. Tr. J. Agriculture and Forestry 20: 289-293
22. Herben T Brezina S Stanislav H Hadincova V & Krahulec F (2007). Variation in plant performance in a grassland: Species- specific and neighbouring root mass effects. Journal of Vegetation Science 18: 55-62
23. Kiaer L P Weisbach A N & Weiner J (2013). Root and shoot competition: a metal-analysis. Journal of Ecology 101: 1298-1312
24. Koc A (2001). Autumn and spring drought periods affect vegetation on high elevation rangelands of Turkey. J. Range Management 54: 622-627
25. Koc A Erkovan H I & Serin Y (2008). Changes in vegetation and soil properties under semi-nomadic animal raising areas in highlands, rangelands of Turkey. Current World Environment 3: 15-20
26. Koc A Erkovan S Erkovan H I Oz U Birben M M & Tunc R (2013a). Competitive effects of plant species under different sowing ratios in some annual cereal and legume mixtures. Journal of Animal and Veterinary Advances 12: 509-520
27. Koc A Gullap M K & Erkovan H I (2013b). The soil seed bank pattern in highland rangelands of Eastern Anatolian Region of Turkey under different garzing systems. Turkish Journal of Field Crops 18: 109-117
28. Kurokawa H Peltzer D A & Wardle A (2010). Plant traits, leaf palatability and litter decomposability for co-occurring woody species differing in invasion status and nitrogen fixation ability. Functional Ecology 24: 513-523
29. Li L Sun J Zhang F Guo T Bao X Smith F A & Smith S E (2006). Root distribution and interactions between intercropped species. Oecologia 147: 280-290
30. Liu G X Zhang X J Hovstad K A Mao P S & Han J G (2013). Competition of Leymus chinensis and Bromus inermis in response to gap size and neighbouring root exclusion. Grass and Forage Science 69: 479-487
31. Ludwig F Dawson T E Kroon H & Berendse F (2003). Hydraulic lift in Acacia tortilis trees on a EastAfrican savanna. Oecologia 134: 293-300
32. Lutscher F & Iljon T (2013). Competition, facilitation and the allee effect. Oikos 122: 621-631
33. Manning M E Swanson S R Svejcar T & Trent J (1989). Rooting characteristics of four intermountain meadow community types. J. Range Management 42: 309-312
34. Novoplansky A & Goldberg D (2001). Interactions between neighbour environments and drought resistance. J. Arid Environments 47: 11-32
35. Oksanen L Sammul M & Merike M (2006). On the indices of plant-plant competition and their pitfalls. Oikos 112: 149-155
36. SAS Institute (1998). Statistical Analysis System Institute: StatView Reference Manual. SAS Institute Cary NC
37. Sitters J Edwards P J & Venterink H O (2013). Increases of soil C, N and P pools along an Acacia tree density gradient and their effects on trees and grasses. Ecosystems 16: 347-357
38. Small E Jurzysta M & Nozzolillo C (1990). The evolution of hemolytic saponin content in wild and cultivated Alfalfa (Medicago sativa, Fabaceae). Economic Botany 44: 226-235
39. Soil Survey Laboratory Staff (1992). Soil Survey Laboratory Methods Manual. USDA-SCS. Soil Survey Investigations Report No: 42. Washington DC USA
40. Soliveres S Maestre F T Berdugo M & Allan E (2015). A missing link between facilitation and plant species coexistence: nurses benefit generally rare species more than common ones. Journal of Ecology 103: 1183-1189
41. Tilman D (1987). The importance of the mechanisms of interspecific competition. The American Naturalist 129: 769-774
42. Torres F A & Montana C (2015). From facilitative to competitive interaction between Larrea tridentata and Cylindropuntia leptocaulis in the Southern Chihuahuan Desert. Journal of Vegetation Science 26: 68-79
43. Wang P Weiner J Cahill J F Zhou D W Bian H F Song Y T & Sheng L X (2014). Shoot competition, root competition and reproductive allocation in Chenopodium acuminatum. Journal of Ecology 102: 1688-1696